研究業績

学術論文

118) M. Asobe, N. Wanifeni, T. Kazama, K. Enbutsu, and T. Umeki, “Transmission of signal and idler using optical parametric amplifier based on PPLN waveguide” Opt. Express 32 (5), 8437-8446 (2024).

117) M. Asobe, Y. Kawabata, D. Yagi, T. Kazama, K. Enbutsu, and T. Umeki, "Parametric optical amplification using a reflective multiple quasi-phase-matched LiNbO3 waveguide module," Opt. Continuum 3 (2), 207-218 (2024).

116) Masaki Asobe, Daiki Yagi, Yuki Kawabata, Takeshi Umeki, Koji Enbutsu, Takushi Kazama, and Ryoichi Kasahara, “Broadband optical parametric amplification using PPLN waveguide pumped by detuned second harmonic” Optics Express 30, No.6 9473-9481 (2022).

115) Masaki Asobe, Saroeun Punhavan, Masato Kato, Takeshi Umeki, Kojo Enbutsu, Takushi Kazama, and Ryoichi Kasahara, “Parametric wavelength conversion with bidirectional utilization of a multiple QPM device” Optics Express 29, No.15 22900-22906 (2021)

114) (invited) M. Asobe, T.Umeki, and O.Tadanaga, “Phase sensitive amplifier using periodically poled LiNbO3 waveguides and their applications” IEICE Trans. on Electronics Vol. E101-C No.7, 586-593 (2018)

113) (招待論文)　遊部　雅生, 中村　一貴, フン　チャンナ, 梅木　毅伺, 竹ノ内　弘和 “マルチQPM素子を用いた多重周波数混合と多値変調信号の位相感応増幅への応用” 電子情報通信学会論文誌　C　Vol. J100-C　No. 3　pp. 116-122 (2017)
112) K. Nakamura, H.Channa,Masaki Asobe, T. Umeki, and H. Takenouchi “Multiple optical carrier generation using frequency mixing in damage resistant multiple QPM device” Optics Express 25, 3639-3545 (2017) (IF:3.148)
111) K.Enbutsu, T.Umeki, O. Tadanaga, M.Asobe and H.Takenouchi, “PPLN-based Low-Noise In-Line Phase Sensitive Amplifier with Highly Sensitive Carrier-Recovery System” IEICE Trans. Commun.,Vol.E99-B No.8 (2016) 1727-1733

110) Toshihiro Yoshihara, Akio Tokura, Shin-nosuke Hashida, Kazuyoshi Kitazaki, Masaki Asobe, Koji Enbutsu, Hirokazu Takenouchi, Fumiyuki Goto, Kazuhiro Shoji, “N2O emission from a tomato rockwool culture is highly responsive tophotoirradiation conditions” Scientia Horticulturae 201 (2016) 318–328

109) K. Enbutsu, T. Umeki, M. Asobe and H. Takenouchi, “Integrated quasi-phase-matched second-harmonic generator and electro-optic phase modulator for low-noise phase-sensitive amplification” Opt. Lett. 40(14), 3336-3339 (2015)

108) T.Umeki, T. Kazama, O. Tadanaga, K. Enbutsu, M. Asobe, Y. Miyamoto, H. Takenouchi, "PDM signal amplification using PPLN-based polarization-independent phase sensitive amplifier," IEEE/OSA J.Lightwave Technology Vol. 33 1326-1332 (2015)

107) M.Asobe, T. Umeki, K. Enbutsu, O. Tadanaga and H. Takenouchi “Phase squeezing and dispersion tolerance of phase sensitive amplifier using PPLN waveguide” J. Optical Society of America B Vol.31 pp. 3164-3169 (2014)

106) M.Asobe, T. Umeki, H. Takenouchi, and Y. Miyamoto “In-line phase-sensitive amplification of QPSK signal using multiple quasi-phase matched LiNbO3 waveguide” Optics Express, vol. 22, pp. 26642-26650 (2014)

105) T. Kazama, T. Umeki, M. Asobe, and H. Takenouchi　“”Single-Chip Parametric Frequency Up/Down Converter Using Parallel PPLN Waveguides” IEEE Photon Technol Lett.　Vo/ 26 pp｡2248-2251　(2014).

104) Toshihiro Yoshihara, Akio Tokura, Shin-nosuke Hashida,,Kazuyoshi Kitazaki, Masaki Asobe, Koji Enbutsu, Hirokazu Takenouchi,, Fumiyuki Goto, Kazuhiro Shoji

“A precise/short-interval measurement of nitrous oxide emission

from a rockwool tomato culture” Environmental Control in Biology Vol. 52/No. 3 September pp.137-147 2014.

103) Isao Tomita, Takeshi Umeki, Osamu Tadanaga, Hongbin Song, Masaki Asobe, and Hirokazu Takenouchi “”Properties of power dependence on low-crosstalk waveband conversion with an apodized multiperiod-QPM LiNbO3 device”, Optics Express, Vol. 22, Issue 12, pp. 15232-15244 (2014)

102) T. Umeki, O. Tadanaga, M. Asobe, Y. Miyamoto, and H. Takenouchi “First Demonstration of High-Order QAM Signal Amplification in PPLN-based Phase Sensitive Amplifier” Opt. Express vol.22 pp.2473-2482 (2014)

101) K. Hitachi,, A. Ishizawa, T. Nishikawa, M. Asobe, and T. Sogawa “Carrier-envelope offset locking with a 2f-to-3f self-referencing interferometer using a dualpitch PPLN ridge waveguide” Optics Express vol.22 pp.1629-1635 (2014)

100) T. Kubo, K. Suzuki, N. Yoshimoto, T. Umeki, M. Asobe, D. R. Kolev, M. Matsumoto “Receiver characteristics evaluation of over-gigabit indoor visible light transmission system with QPM device” IEICE Communications Express Vol. 2 (2013) No. 10 pp. 402-408

99) A. Tokura, M. Asobe, K.Enbutsu, T. Yoshihara, S.Hashida, H. Takenouchi, “Real-Time N2O Gas Detection System for Agricultural Production Using a 4.6-µm-Band Laser Source Based on a Periodically Poled LiNbO3 Ridge Waveguide”Sensors 2013, Vol.13(8), 9999-10013

98) T. Inagaki, N.Matsuda, O. Tadanaga, M. Asobe, and H. Takesue “Entanglement distribution over 300 km of fiber” Opt. Express Vol. 21 Issue 20, pp.23241-23249 (2013)

97) T. Umeki, M. Asobe, H. Takara, H. Takenouchi, “Multi-span transmission using phase and amplitude regeneration in PPLN-based PSA”　Optics Express Vol.21, pp.18170-18177 (2013)

96) K. Hitachi, A. Ishizawa, T. Nishikawa, M. Asobe, T. Sogawa ”Periodically poled lithium niobate ridge waveguides with high conversion efficiency for 2f-to-3f self-referencing interferometer” Electron Lett. Vol.49 Issue 2 January 2013 p.145-146 (2013)

95) T. Umeki, M. Asobe, H. Takenouchi, “In-line phase sensitive amplifier based on PPLN waveguides” Optics Express, Vol. 21 Issue 10, pp.12077-12084 (2013)

94) T. Umeki, H. Takara, Y. Miyamoto, M. Asobe, “”3dB signal-ASE beat noise reduction of coherent multi-carrier signal utilizing phase sensitive amplification” Optics Express, Vol. 20 Issue 22, pp.24727-24734 (2012)

93) M. Asobe, T. Umeki, and O. Tadanaga, “Phase sensitive amplification with noise figure below the 3 dB quantum limit using CW pumped PPLN waveguide” Opt. Express vol.20, (2012) 13164-13172

92) T. Umeki, O. Tadanaga, A. Takada and M. Asobe, "Phase sensitive degenerate parametric amplification using directly-bonded PPLN ridge waveguides," Optics Express, Vol. 19, 6326-6332 (2011)

91) T. Umeki, O. Tadanaga, M. Asobe, “QPM Wavelength Converter Using Direct-Bonded Ridge Waveguide With Integrated MMI Multiplexer,” IEEE Photon. Technol. Lett. Vol. 23, 33-35 (2011)

90) A. Ishizawa, R. Nishikawa, S. Aozasa, A. Mori, O. Tadanaga, M. Asobe, and H. Nakano, “Efficient carrier-envelope offset locking with a simplified configuration of an f-to2f interferometer” Jpn. J. Appl. Phys. Vol.50, (2011) 022502

89) T. Umeki, O. Tadanaga, and M. Asobe, “Highly efficient wavelength converter using direct-bonded PPZnLN ridge waveguide” IEEE J. Quantum Electron. Vol.46, No.8, pp.1206-1213 (2010)

88) M. Asobe, O. Tadanaga, T. Umeki, T. Yanagawa, K. Magari, and H. Ishii, “Engineered quasi-phase matching device for unequally spaced multiple wavelength generation and its application to midinfrared gas sensing” IEEE J. Quantum Electron. Vol. 46, no.4 pp.447-453 (2010)

87) I. Tomita, T. Umeki, O. Tadanaga, H.B. Song, and M. Asobe, "Apodized multiple quasi-phase-matched LiNbO3 device for low-cross-talk waveband conversion," Opt. Lett. Vol.35, pp. 805-807 (2010)

86) H.B.Song, O. Tadanaga, T. Umeki, I. Tomita, M. Asobe,　S. Yamamoto, K. Sato, and K. Yonenaga、“Phase-transparent flexible waveband conversion of 43 Gb/s RZ-DQPSK signals using multiple-QPM-LN waveguides”　Opt. Express, Vol.18, 15332-15337 (2010)

85) H. Myrtille, H. Takesue, O. Tadanaga, Y. Nishida, M. Asobe “Generation of time-bin entangled photon pairs by cascaded second-order nonlinearity in a single periodically poled LiNbO3 waveguide” Opt. Lett. Vol.35 (8) 1239-1241 (2010)

84) T. Kubo, T. Taniguchi, O. Tadanaga, N. Sakurai, H. Kimura. H. Hadama, M. Asobe ,” In-line monitoring technique with visible light from 1.3 mu m-band SHG module for optical access systems” Opt. Express Vol.18 (3) 2100-2105 (2010)

83) H.B.Song, O. Tadanaga, T. Umeki, I.Tomita, H. Ishii, H. Oohashi, M. Asobe, “High-Quality Grouped-Wavelength Conversion and Dynamic Switching Using Multiple-QPM LiNbO3 and TLA” IEEE Photonics Technology Letters, Volume 21, Issue 13, July1, 2009 Page(s):854 - 856

82) H.B. Song, T. Yanagawa, O. Tadanaga, K. Magari, M. Asobe, H. Ishii, and H. Oohashi “Compact and tunable mid-infrared laser using QPM-LN waveguide and TLA” Electron. Lett. Vol. 45, 977(2009)

81) M. Asobe, T. Umeki, O. Tadanaga, K. Yoshino, E. Yamazaki, and A. Takada, “Low crosstalk and variable wavelength conversion using multiple QPM LiNbO3 waveguide module” Electron. Lett. Vol. 45, 519(2009)

80) Q. Zhang, H. Takesue, T. Honjo, K. Wen, T. Hirohata, M. Suyama, Y. Takiguchi, H. Kamada, Y. Tokura, O. Tadanaga, Y. Nishida, M. Asobe, Y. Yamamoto “Megabits secure key rate quantum key distribution” New J. Phys. Vol.11 045010 (2009)

79) T. Yanagawa, O. Tadanaga, Y. Nishida, K. Magari, and M. Asobe, “4.6 µm-band difference frequency generation and CO isotopologue detection” Electron. Lett. 45, 369(2009)

78) Y. Iwai, T. Honjo, K. Inoue, H. Kamada, Y.Nishida, O. Tadanaga, and M. Asobe, "Polarization-independent, differential-phase-shift, quantum-key distribution system using upconversion detectors," Opt. Lett. 34, 1606-1608 (2009)

77) T. Umeki, M. Asobe, T. Yanagawa, O. Tadanaga, Y. Nishida, K. Magari, and H. Suzuki, "Broadband wavelength conversion based on apodized c(2) grating," J. Opt. Soc. Am B Vol.26, 2315-2322 (2009)

76) J. F. Dynes, H. Takesue, Z. L. Yuan, A. W. Sharpe, K. Harada, T. Honjo, H. Kamada, O. Tadanaga, Y. Nishida, M. Asobe, and A. J. Shields “Efficient entanglement distribution over 200 kilometers” Optics Express, Vol. 17, Issue 14, pp. 11440-11449 (2009)

75) T. Nishikawa, A. Ozawa, Y. Nishida, M. Asobe, F.L. Hong, and T.W. Hänsch “Efficient 494 mW sum-frequency generation of sodium resonance radiation at 589 nm by using a periodically poled Zn:LiNbO3 ridge waveguide” Optics Express, Vol. 17, Issue 20, pp. 17792-17800 (2009)

74) T. Umeki, M. Asobe, Y. Nishida, O. Tadanaga, K. Magari, T. Yanagawa, H. Suzuki, “Highly Efficient +5-dB Parametric Gain Conversion Using Direct-Bonded PPZnLN Ridge Waveguide” IEEE Photonics Technology Letters, Volume 20, Issue 1, Jan.1, 2008 Page(s):15 - 17

73) M. Asobe, O. Tadanaga, T. Yanagawa, T. Umeki, Y. Nishida, and H. Suzuki, “High-power mid-infrared wavelength generation using difference frequency generation in damage-resistant Zn:LiNbO3 waveguide” Electron. Lett. Vol. 44, 288(2008)

72) H. Kamada, M. Asobe, T. Honjo, H. Takesue, Y. Tokura, Y. Nishida, O. Tadanaga, and H. Miyazawa, "Efficient and low-noise single-photon detection in 1550 nm communication band by frequency upconversion in periodically poled LiNbO3 waveguides," Opt. Lett. Vol.33, 639-641 (2008)

71) A. Ishizawa, T. Nishikawa, S. Aozasa, A. Mori, O. Tadanaga, M. Asobe, and H. Nakano “Demonstration of carrier envelope offset locking with low pulse energy” Optics Express, Vol. 16, Issue 7, pp. 4706-4712 (2008)

70) T. Honjo, S. W. Nam, H. Takesue, Q. Zhang, H. Kamada, Y. Nishida, O. Tadanaga, M. Asobe, B. Baek, R Hadfield, S. Miki, M. Fujiwara, M. Sasaki, Z. Wang, K. Inoue, and Y. Yamamoto, “Long-distance entanglement-based quantum key distribution over optical fiber” Optics Express, Vol. 16, Issue 23, pp. 19118-19126 (2008)

69) M. Asobe, O. Tadanaga, T. Umeki, T. Yanagawa, Y. Nishida, K. Magari, and H.Suzuki, "Unequally spaced multiple mid-infrared wavelength generation using an engineered quasi-phase-matching device," Opt. Lett. Vol.32, 3388-3390 (2007)

68) T. Umeki, M. Asobe, Y. Nishida, O. Tadanaga, K. Magari, T. Yanagawa, and H. Suzuki, "Widely tunable 3.4 um band difference frequency generation using apodized c(2) grating," Opt. Lett. Vol.32, 1129-1131 (2007)

67) T. Honjo, H. Takesue, H. Kamada, Y. Nishida, O. Tadanaga, M. Asobe, and K. Inoue “Long-distance distribution of time-bin entangled photon pairs over 100 km using frequency up-conversion detectors” Optics Express, Vol. 15, Issue 21, pp. 13957-13964 (2007)

66) D. Richter, P. Weibring, A. Fried, O. Tadanaga, Y. Nishida, M. Asobe, and H. Suzuki “High-power, tunable difference frequency generation source for absorption spectroscopy based on a ridge waveguide periodically poled lithium niobate crystal” Optics Express, Vol. 15, Issue 2, pp. 564-571 (2007)

65) T. Honjo, S. Yamamoto, T. Yamamoto, H. Kamada, Y. Nishida, O. Tadanaga, M. Asobe, and K. Inoue, “Field trial of differential-phase-shift quantum key distribution using polarization independent frequency up-conversion detectors” Optics Express, Vol. 15, Issue 24, pp. 15920-15927 (2007)

64) O. Tadanaga, T. Yanagawa, Y. Nishida, K. Magari, T. Umeki, M. Asobe, and H.　Suzuki “Widely tunable 2.3 µm-band difference frequency generation in quasiphase-matched LiNbO3 ridge waveguide using index dispersion control “ J. Appl. Phys. Vol.102 033102 (2007)

63) O. Tadanaga, Y. Nishida, T. Yanagawa, H. Miyazawa, T. Umeki, K. Magari, M. Asobe, H. Suzuki, “Efficient 2.7-µm difference frequency generation using direct-bonded quasi-phase-matched LiNbO3 ridge waveguide and investigation of O–H absorption influence”, Jpn. J. Appl. Phys. Vol.46, (2007) pp. 6643-6646

62) K. Magari, T. Yanagawa, O. Tadanaga, Y. Nishida, M. Asobe, and H. Suzuki, “Fine CH4 absorption observation by 3.3 µm difference-frequency generation in quasi-phase-matched LiNbO3 ridge waveguide pumped by fiber-Bragg-grating stabilized single-mode laser diode module”, Jpn. J. Appl. Phys. Vol.46, (2007) pp. L209-L210

61) J. Yamawaku, H. Takara, T. Ohara, A. Takada, T. Morioka, O. Tadanaga, H. Miyazawa, M. Asobe, “Low-Crosstalk 103 Channel x 10 Gb/s (1.03 Tb/s) Wavelength Conversion With a Quasi-Phase-Matched LiNbO3 Waveguide” IEEE Journal of Selected Topics in Quantum Electronics, Volume 12, Issue 4, July-Aug. 2006 Page(s):521 – 528

60) O. Tadanaga, Y. Nishida, T. Yanagawa, H. Miyazawa, K. Magari, T. Umeki, K. Yoshino, M. Asobe, and H. Suzuki, “Diode-laser based 3 mW DFG at 3.4 µm from wavelength conversion module using direct-bonded QPM-LN ridge waveguide” Electron. Lett. 42, 988(2006)

59) T. Yanagawa, O.Tadanaga, Y. Nishida, H. Miyazawa, K. Magari, M. Asobe, and H. Suzuki, "Simultaneous observation of CO isotopomer absorption by broadband difference-frequency generation using a direct-bonded quasi-phase-matched LiNbO3 waveguide," Opt. Lett. 31, 960-962 (2006)

58) I. Tomita, M. Asobe, H. Suzuki, J. Yumoto, and Y. Yoshikuni “Broadband quasi-phase-matched second-harmonic generation in a nonlinear photonic crystal” J. Appl. Phys. 100 023120 (2006)

57) T. Yanagawa, O. Tadanaga, K. Magari, Y. Nishida, H. Miyazawa, M. Asobe, and H. Suzuki “CH4 monitoring in ambient air by communication band laser diode based difference frequency generation in a quasi-phase-matched LiNbO3 waveguide” Appl. Phys. Lett. 89, 221115 (2006)

56) O. Tadanaga, T. Yanagawa, Y. Nishida, H. Miyazawa, K. Magari, M. Asobe, and H. Suzuki “Efficient 3-µm difference frequency generation using direct-bonded quasi-phase-matched LiNbO3 ridge waveguides” Appl. Phys. Lett. 88, 061101 (2006)

55) O. Tadanaga, T. Yanagawa, Y. Nishida, H. Miyazawa, K. Magari, M. Asobe and H. Suzuki, “Widely tunable and highly efficient 2.3-µm-band difference frequency generation in direct-bonded quasi-phase-matched LiNbO3 ridge waveguide” Jpn. J. Appl. Phys. 45, (2006) pp. L239-L241

54) O. Tadanaga, M. Asobe, Y. Nishida, H. Miyazawa, K. Yoshino, H. Suzuki, “763-nm laser light source for oxygen monitoring using second harmonic generation in direct-bonded quasi-phase-matched LiNbO3 ridge waveguide”, IEICE Transactions on Electronics Vol.E89-C No.7 pp.1115-1117 (2006)

53) M. Asobe, O. Tadanaga, H. Miyazawa, Y. Nishida, H. Suzuki, “Multiple quasi-phase-matched device using continuous phase modulation of χ(2) grating and its application to variable wavelength conversion” IEEE Journal of Quantum Electronics, Volume 41, Issue 12, Dec. 2005 Page(s):1540 - 1547

52) Y. Nishida; H. Miyazawa; M. Asobe; O. Tadanaga; H. Suzuki, “0-dB wavelength conversion using direct-bonded QPM-Zn : LiNbO3 ridge waveguide” IEEE Photonics Technology Letters, Volume 17, Issue 5, May 2005 Page(s):1049 - 1051

51) H. Takesue, K. Inoue, O. Tadanaga, Y.Nishida, and M. Asobe, "Generation of pulsed polarization-entangled photon pairs in a 1.55-µm band with a periodically poled lithium niobate waveguide and an orthogonal polarization delay circuit," Opt. Lett. 30, 293-295 (2005)

50) T. Yanagawa, H. Kanbara, O.Tadanaga, M. Asobe, H.Suzuki, and J. Yumoto “Broadband difference frequency generation around phase-match singularity” Appl. Phys. Lett. 86, 161106 (2005)

49) (Invited) M. Asobe, Y. Nishida, O. Tadanaga, H. Miyazawa, H. Sizuki, “Wavelength conversion using quasi-phase matched LiNbO3 waveguides”, IEICE Transactions on Electronics Vol.E88-C No.3 pp.335-341 (2005)

48) E. Yamazaki, A. Takada, J. Yamawaku, T. Morioka, H. Miyazawa, O. Tadanaga, and M. Asobe, “On-grid wavelength conversion and multi-carrier generation with quasi-phase-matched LiNbO3 waveguide optical loop circuit” Electron. Lett. 40, 1215(2004)

47) E. Yamazaki, A. Takada, J. Yamawaku, T. Morioka, O. Tadanaga, and M. Asobe, “Widely tunable multichannel wavelength conversion using multiple wavelength quasi-phase-matched LiNbO3 waveguide” Electron. Lett. 40, 492(2004)

46) O. Tadanaga, M. Asobe, H. Miyazawa, Y. Nishida, and H. Suzuki, “Efficient 1.55 µm-band quasi-phase-matched ZnO-doped LiNbO3 wavelength converter with high damage resistance” Electron. Lett. 40, 328(2004)

45) M. Asobe, H. Miyazawa, O. Tadanaga, Y. Nishida, H. Suzuki, ”A highly damage-resistant Zn:LiNbO3 ridge waveguide and its application to a polarization-independent wavelength converter” IEEE Journal of Quantum Electronics, Volume 39, Issue 10, Oct. 2003 Page(s):1327 - 1333

44) O. Tadanaga, M. Asobe, H. Miyazawa, Y. Nishida, and H. Suzuki “Variable operation of optical frequency shifter using multiple-quasi-phase-matched LiNbO3 wavelength converters” Electron. Lett. 39, 1525(2003)

43) J. Yamawaku, H. Takara, T. Ohara, K. Sato, A. Takada, T. Morioka, O. Tadanaga, H. Miyazawa, and M. Asobe, “Simultaneous 25 GHz-spaced DWDM wavelength conversion of 1.03 Tbit/s (103×10 Gbit/s) signals in PPLN waveguide” Electron. Lett. 39, 1144(2003)

42) Y. Nishida, H. Miyazawa, M. Asobe, O. Tadanaga, and H. Suzuki, “Direct-bonded QPM-LN ridge waveguide with high damage resistance at room temperature” Electron. Lett. 39, 609(2003)

41) M. Asobe, O. Tadanaga, H. Miyazawa, Y.Nishida, and H. Suzuki, "Multiple quasi-phase-matched LiNbO3 wavelength converter with a continuously phase-modulated domain structure," Opt. Lett. 28, 558-560 (2003)

40) O. Tadanaga, M. Asobe, H. Miyazawa, Y. Nishida, and H. Suzuki, “1 THz multi-channel optical frequency shifter using quasi-phase-matched LiNbO3 wavelength converters” Electron. Lett. 38, 1456(2002)

39) A. Hirano, M. Asobe, K. Sato, Y. Miyamoto, K. Yonenaga, H. Miyazawa, M. Abe, H. Takara, I. Shake, “Dispersion tolerant 80-Gbit/s carrier-suppressed return-to-zero (CS-RZ) format generated by using phase- and duty-controlled optical time division multiplexing (OTDM) technique”, IEICE Transactions on Communications Vol.E85-B No.2 pp.431-437 (2002)

38) M. Asobe, O. Tadanaga, H. Miyazawa, and H. Suzuki, “Parametric wavelength conversion and amplification using damage-resistant Zn:LiNbO3 waveguide” Electron. Lett. 37, 962(2001)

37) M. Asobe, O. Tadanaga, T. Yanagawa, H. Itoh, and H. Suzuki “Reducing photorefractive effect in periodically poled ZnO- and MgO-doped LiNbO3 wavelength converters” Appl. Phys. Lett. 78, 3163 (2001)

36) A. Hirano, H. Tsuda, H. Kobayashi, R. Takahashi, M. Asobe, K. Sato, K. Hagimoto, “All-optical discrimination based on nonlinear transmittance of MQW semiconductor optical gates” Journal of Lightwave Technology, Volume 17, Issue 5, May 1999 Page(s):873 - 884

35) H. Kanbara, H. Itoh, M. Asobe, K. Noguchi, H. Miyazawa, T. Yanagawa, I. Yokohama, “All-optical switching based on cascading of second-order nonlinearities in a periodically poled titanium-diffused lithium niobate waveguide” IEEE Photonics Technology Letters, Volume 11, Issue 3, March 1999 Page(s):328 - 330

34) K. Sato, A. Hirano, M. Asobe, and H. Ishii, “Chirp-compensated 40 GHz semiconductor modelocked lasers integrated with chirped gratings” Electron. Lett. 34, 1944(1998)

33) A. Hirano, T. Kataoka, S. Kuwahara, M. Asobe, and Y. Yamabayashi, “All-optical limiter circuit based on four-wave mixing in optical fibres” Electron. Lett. 34, 1410(1998)

32) M. Asobe, A. Hirano, Y. Miyamoto, K. Sato, K. Hagimoto, and Y. Yamabayashi, “Noise reduction of 20 Gbit/s pulse train using spectrally filtered optical solitons” Electron. Lett. 34, 1135(1998)

31) K. Sato, I. Kotaka, A. Hirano, M. Asobe, Y. Miyamoto, N. Shimizu, and K. Hagimoto, “High-repetition frequency pulse generation at 102 GHz using modelocked lasers integrated with electroabsorption modulators” Electron. Lett. 34, 790(1998)

30) M. Asobe, Y. Miyamoto, A. Hirano, M. Yoneyama, H. Okamura, K. Hagimoto, H. Masuda, and K. Aida, “Simultaneous transmission of bandwidth-weighted TDM and WDM signals within a wideband optical amplifier gain-band” Electron. Lett. 34, 487(1998)

29) A. Hirano, H. Kobayashi, H. Tsuda, R. Takahashi, M. Asobe, K. Sato, and K. Hagimoto, “10 Gbit/s RZ all-optical discrimination using refined saturable absorber optical gate” Electron. Lett. 34, 198(1998)

28) M. Asobe, A. Hirano, K. Hagimoto, K. Sato, and K. Naganuma, “Noise and chirping characteristics of modelocked laser diodes integrated with electroabsorption modulator” Electron. Lett. 33, 883(1997)

27) M. Asobe, I. Yokohama, H. Itoh, and T. Kaino, "All-optical switching by use of cascading of phase-matched sum-frequency-generation and difference　frequency　generation processes in periodically poled LiNbO3," Opt. Lett. 22, 274-276 (1997)

26) I. Yokohama, M. Asobe, A. Yokoo, H. Itoh, and T. Kaino, "All-optical switching by use of cascading of phase-matched sum-frequency generation and difference-frequency generation processes," J. Opt. Soc. Am. B 14, 3368-3377 (1997)

25) (Invited) M. Asobe, “Nonlinear optical properties of chalcogenide glass fibers and their application to all-optical switching”, Opt. Fiber Technol., Vol. 3, (2), April 1997, pp. 142-148

24) M. Tsukada, D.Z. Wen, T. Matsunaga, M. Asobe, T. Oohara, “An ultrafast photonic ATM switch based on bit-interleave multiplexing” Journal of Lightwave Technology, Volume 14, Issue 9, Sept. 1996 Page(s):1979 - 1985

23) M. Asobe, T. Ohara, I. Yokohama, and T. Kaino, “Fabrication of Bragg grating in chalcogenide glass fibre using the transverse holographic method” Electron. Lett. 32, 1611(1996)

22) K. Uchiyama, T. Morioka, M. Saruwatari, M. Asobe, and T. Ohara, “Error free all-optical demultiplexing using a chalcogenide glass fibre based nonlinear optical loop mirror” Electron. Lett. 32, 1601(1996)

21) M. Asobe, T. Ohara, I. Yokohama, and T. Kaino, “Low power all-optical switching in a nonlinear optical loop mirror using chalcogenide glass fibre” Electron. Lett. 32, 1396(1996)

20) S. Tomaru, T. Watanabe, M. Hikita, M. Amano, Y. Shuto, I.Yokohoma, T. Kaino, and M. Asobe “Quasi-phase-matched second harmonic generation in a polymer waveguide with a periodic poled structure” Appl. Phys. Lett. 68, 1760 (1996)

19) M. Asobe, I. Yokohama, T. Kaino, S. Tomaru, T. Kurihara, “Dispersive nonlinear absorption in organic polymer waveguide at 1.5 mm wavelength region” Nonlinear Optics, vol.15, 477 (1996)

18) N. Ooba, M. Asobe, S. Tomaru, T. Kurihara, I. Yokohama, T. Kaino, W. Yamada, M. Takagi, T. Yamamoto, “Third order optical nonlinearities and channel waveguide fabrication of processable p-conjugated poly(aryleneethynylenr) type polymer” Nonlinear Optics, vol.15, 481 (1996)

17) T. Kaino, S. Tomaru, T. Kurihara, M. Asobe, “Development of organic nonlinear optical materials for photonic device applications”, Nonlinear Optics, Vol.13, 203 (1996)

16) T. Kaino, A. Yokoo, M. Asobe, A. Tomaru, T. Kurihara, “Organic nonlinear optical materials for device applications”, Nonlinear Optics, Vol. 14, 135 (1996)

15) M. Tsukada, T. Matsunaga, M. Asobe, and T. Ohara, “56 byte optical cell selection at 55 Gbit/s in bit-interleave multiplexing photonic ATM switch Electron. Lett. 31, 1713(1995)

14) W.D. Zhong, M. Tsukada, T. Matsunaga, M. Asobe, and T. Ohara, “Optical bit-interleave multiplexing ATM switch” Electron. Lett. 31, 995(1995)

13) M. Asobe, "Effects of group-velocity dispersion in all-optical switching devices using highly nonlinear optical waveguides," J. Opt. Soc. Am. B 12, 1287-1299 (1995)

12) M. Asobe, T. Kanamori, K. Naganuma, H. Itoh, and T. Kaino “Third-order nonlinear spectroscopy in As2S3 chalcogenide glass fibers“ J. Appl. Phys. 77 5518 (1995)

11) M. Asobe, I. Yokohama, T. Kaino, S. Tomaru, and T. Kurihara “Nonlinear absorption and refraction in an organic dye functionalized main chain polymer waveguide in the 1.5 µm wavelength region” Appl. Phys. Lett. 67, 891 (1995)

10) M. Asobe, K. Naganuma, T. Kaino, T. Kanamori, S. Tomaru, and T. Kurihara “Switching energy limitation in all-optical switching due to group velocity dispersion of highly nonlinear optical waveguides” Appl. Phys. Lett. 64, 2922 (1994)

9) M. Asobe, T. Kanamori, K. Kubodera,” Applications of highly nonlinear chalcogenide glass fibers in ultrafast all-optical switches” IEEE Journal of Quantum Electronics, Volume 29, Issue 8, Aug. 1993 Page(s):2325 - 2333

8) M. Asobe, T. Kanamori, H. Kobayashi, H. Itoh, “Laser-diode-driven ultrafast all-optical switch using a highly-nonlinear chalcogenide glass fiber” Nonlinear Optics, Vol. 7, 309-314 (1994)

7) K. Wakita, K. Sato, I. Kotaka, M. Yamamoto, M. Asobe, “Transform-limited 7-ps optical pulse generation using a sinusoidally driven InGaAsP/InGaAsP strained multiple-quantum-well DFB laser/modulator monolithically integrated light source” IEEE Photonics Technology Letters, Volume 5, Issue 8, Aug. 1993 Page(s):899 - 901

6) M. Asobe, H. Itoh, T. Miyazawa, and T. Kanamori, “Efficient and ultrafast all-optical switching using high Dn, small core chalcogenide glass fibre” Electron. Lett. 29, 1966(1993)

5) M. Asobe, H. Kobayashi, H. Itoh, and T. Kanamori, "Laser-diode-driven ultrafast all-optical switching by using highly nonlinear chalcogenide glass fiber," Opt. Lett. 18, 1056-1058 (1993)

4) M. Asobe, T. Kanamori, K. Kubodera, ”Ultrafast all-optical switching using highly nonlinear chalcogenide glass fiber” IEEE Photonics Technology Letters, Volume 4, Issue 4, April 1992 Page(s):362 - 365

3) H. Kanbara, M. Asobe, K. Kubodera, T. Kaino, and T. Kurihara “All-optical picosecond switch using organic single-mode fiber waveguide “ Appl. Phys. Lett. 61, 2290 (1992)

2) M. Asobe, K. Suzuki, T. Kanamori, and K. Kubodera, “Nonlinear refractive index measurement in chalcogenide-glass fibers by self-phase modulation” Appl. Phys. Lett. 60, 1153 (1992)

1) M. Asobe, H. Itoh, K. Kubodera, “Ultrafast all-optical switching in a walk-off-suppressed nonlinear fiber loop mirror switch”, Opt. Comm., Vol 88, (4-6), 1 April 1992, pp. 446-450

国際会議報告

120) Masaki Asobe “Efficient frequency mixing using PPLN waveguides for optical communication and gas sensing” Dynamics Days Central Asia and Caucasus: October 1-4 2023, Bkukara Uzbekistan

119) Ndadi Wanifeni, Masaki Asobe, Takushi Kazama, Koji Enbutsu, and Takeshi Umeki “Transmission of S band signal using optical parametric amplifier based on PPLN waveguide” Optica Nonlinear Optics Topical Meeting 2023 Paper MA2.2.

118) S. Punhavan, M.Kato, K. Sugiyama, M.Asobe, T. Umeki, K. Enbutsu, T. Kazama, T. Kashiwazaki, and R. Kasahara “1.4µm-1.6µm Wavelength Conversion Using Multiple Quasi-Phase Matching LiNbO3” OECC/PSC 2019 Paper WB3-2.

117) S. Kato, H. Ishikawa, K. Uchiyama, A. Maruyama, M. Asobe, K. Tei , S. Yamaguchi, and N. Hirayama “Wavelength Modulation Spectroscopy of Linalool using Broadband 3mm Difference Frequency Laser” ALPS 2019 Paper.ALPS-P2-19

116) (invited) M. Asobe, M. Katoh, K. Kugiyama, J. Tsuchiya and S.Katoh, “PPLN based frequency mixer for optical communication and sensing application” Annual Congress of Smart Materials 2019 Paper 201-1

115) K.Uchiyama, H.Ishikawa, A. Maruyama, M.Asobe, K.Tei, S. Yamaguchi, and N. Hirayama” Broadband mid-infrared spectroscopy for highly sensitive gas analysis”
東京-モスクワ国際医学フォーラム 2018

114) (invited) M. Asobe, M. Katoh, S. Punhavan, K. Uchiyama, D. Ishikawa, “PPLN based frequency mixer for optical signal processing and sensing application” PIERS 2018 Toyama Paper 3A13-1

113) M. Katoh, T. Umeki, K. Enbutsu, and M. Asobe, “Clean pump generation for in-line phase sensitive amplification using carrier phase recovery and injection locking”, ALPS 2018 Yokohama Paper ALPS p-25

112) K. Amamoto, K. Tei, S. Yamaguchi, S. Sakai, M. Asobe and T. Ohba “Real Time Sensing of 12CO2 and 13CO2 Using 2μm DFB-LD” MOC 2017

111) M. Asobe, K. Nakamura, K. Enbutsu, T. Umeki “Efficient multi-stage frequency mixing inmultiple QPM device for optical carrier processing” CLEO 2017 SM2M.6
110) S. Sakai, M. Asobe, A. Katoh, A. Tokura “Real Time Measurement of Folmaldehyde

Using 3μm Difference Frequency Laser” ALPS 2017 Yokohama Paper ALPS 9-3

109) （Invited） Masaki Asobe “Phase-sensitive Amplification for future optical transport” OECC/PS Workshop2

108) Ryohei Fujisawa, Masaki Asobe, Akira Katoh, Shigeru Yamaguchi, Akio Tokura, Hirokazu Takenouchi “Wavelength modulation spectroscopy of formaldehyde using 3um DFG laser” OECC/PS 2016

107) Kazuki Nakamura, Hin Channa, Masaki Asobe, Takeshi Umeki, and Hirokazu Takenouchi “Multiple optical carrier generation using multiple QPM device” OECC/PS 2016

106) Ryohei Fujisawa, Masaki Asobe, Takehiro Tachizaki, and Hirokazu Takenouchi “Broadband mid-infrared difference frequency generation using apodized aperiodically poled LiNbO3 waveguide” CLEO 2016

105) (invited) Masaki Asobe, Osamu Tadanaga, Takeshi Umeki, and Hirokazu Takenouchi “Highly efficient PPLN waveguide and their applications” 6th IEEE International Conference on Photonics (ICP2016)

104) (invited) Masaki Asobe, Takeshi Umeki, and Hirokazu Takenouchi “Phase sensitive amplifiers using PPLN waveguides and their applications” ACP 2015 Hong Kong , China

103) Ryuta Someya, Takeshi Imamura, Tetsushi Okamoto, Naoko Toyoshima, Masaki Asobe, Kazuyoku Tei and Shigeru Yamaguchi “Laser Absorption Trace Gas Monitor with a Tunable High Finesse External Cavity for Clinical Breath Analysis” International Conference on Lasers and Electro-optics Europe 2015 Munich Germany
102) Koji Enbutsu, Takeshi Umeki, Osamu Tadanaga, and Hirokazu Takenouchi and Masaki Asobe “PPLN-based low-noise in-line phase sensitive amplifier with highly sensitive carrier-recovery system” APCC2015 Kyoto

101) Takushi Kazama, Takeshi Umeki, Koji Enbutsu and Hirokazu Takenouchi　“Phase Sensitive Amplification Using Monolithically Integrated PPLN Waveguide Circuit”　OECC　2015 Sahghai , China
100) Masaki Asobe, Y. Takemiya, S. Rin, Y. Matsuya, T. Aok), A. Katoh, R. Someya, A. Tokura, H. Takenouchi, and S. Yamaguchi “Real-time detection of formaldehyde using PPLN-based mid-infrared laser for study of sick house syndrome” CLEO 2015 San-Jose.

99) (Invited) T. Umeki, M. Asobe, O. Tadanaga, H. Takara, Y. Miyamoto, and H. Takenouchi “Phase sensitive amplifiers based on PPLN waveguides for optical communication”” COIN 2014　August 27-29 , 2014　Jeju Korea

98) T. Umeki, T. Kazama, O. Tadanaga, K. Enbutsu, M. Asobe, Y. Miyamoto, and H. Takenouchi “First Demonstration of PDM Signal Amplification using PPLN based Polarization-Independent Phase Sensitive Amplifier” ECOC 2014 Cannes September 21-25

97) (Invited) H. Takenouchi, T. Umeki, O. Tadanaga, K. Enbutsu, Y. Miyamoto and M. Asobe　 “PPLN-based phase sensitive amplifiers and their applications” Nonlinear Optical Signal Processing July Montreal 2014

96) T. Kazama, T. Umeki, M. Asobe†, and H.Takenouchi “Monolithically-integrated optical parametric up/down frequency converter using arrayed PPLN waveguides” CLEO 2014 SM4I.8

95) K. Hitachi, A. Ishizawa, T. Nishikawa, H. Mashiko, O. Tadanaga, M. Asobe*, T. Sogawa, H. Gotoh　“A collinear 2f-to-3f self-referencing interferometer with a dual-pitch PPLN ridge waveguide” CLEO 2014　JW2A.106

94) M. Asobe, T. Umeki, H. Takenouchi, “Dispersion Tolerance of Phase Sensitive Amplifier using PPLN waveguide”. The 3rd Advanced Lasers and Photon Sources (ALPS’14), Paper ALPS5-5 Yokohama, Japan Apr.23 2014
93) （Invited） T. Umeki, M. Asobe, H. Takara, O. Tadanaga,　K. Enbutsu, Y. Miyamoto, and H. Takenouchi　“Low Noise and Regenerative Phase Sensitive Amplifier based on PPLN Waveguides” OFC/NFOEC 2014

92) T. Umeki, O. Tadanaga, M. Asobe, Y. Miyamoto, and H. Takenouchi, “First demonstration of QAM dignal amplification in PPLN-based phase sensitive　amplifier” ECOC 2013 Post deadline PD1.C.5, 2013

91) K. Hitachi, A. Ishizawa, T. Nishikawa, M. Asobe, T. Sogawa “Highly stabilized carrier-envelope-offset frequency of an Er-doped mode-locked fiber laser with a dual-pitch PPLN waveguide” International symposium on nanoscale transport technology (ISNTT2013)

90) M. Asobe, T. Umeki, H. Takenouchi, and Y. Miyamoto, “In-line phase-sensitive amplifier for QPSK signal using multiple QPM LiNbO3 waveguide” CLEO-PR & OECC/PS 2013 Post deadline paper PD2-3,2013.

89) T. Inagaki, N. Matsuda, O. Tadanaga, Y. Nishida, M. Asobe, H. Takesue “Long Distance Distribution of Entangled Photon Pair Over 300 km of Fiber” CLEO 2013 Paper QTu2C.2, 2013

88) K. Hitachi, A. Ishizawa, T. Nishikawa, M. Asobe, T. Sogawa, “High-efficiency carrier-envelope offset locking in a 2f-to-3f self-referencing interferometer with a dual-pitch PPLN ridge waveguide” CLEO 2013 Paper CF1G.6,,2013

87) K. Enbutsu, T. Umeki, M. Asobe and H. Takenouchi, “Phase-sensitive amplifier using a PPLN waveguide integrated with a high-power-tolerant phase locking modulator” CLEO 2013 Paper CM4D.6, 2013

86) T. Umeki, M. Asobe, H. Takara, T. Kobayashi, H. Kubota, H. Takenouchi, Y. Miyamoto, “First demonstration of multi-span transmission using phase and amplitude

regeneration in PPLN based PSA” OFC/NFOEC 2013 Paper OW1I.7, 2013

85) (Invited) M. Asobe, T. Umeki, and H. Takenouchi “PPLN based phase sensitive amplifiers and their applications”OFC/NFOEC 2013 Paper OW3C.3, 2013

84) T. Kubo, T. Yamada, K-I. Suzuki, N. Yoshimoto, T. Umeki, M. Asobe, D. R. Kolev, and M. Matsumoto　“2 m Over-gigabit Indoor Visible Light Transmission Employing Wavelength Conversion with Quasi Phase Matching Device”IWOWC　2012 Pisa 2012

83) K. Hitachi, A. Ishizawa., T. Nishikawa, M. Asobe, and T. Sogawa “2f-3f Optical Wavelength Conversion Device with PPLN waveguides” SSDM 2012 Paper 6423, 2012

82) T. Umeki, H. Takenouchi, and M. Asobe “First Demonstration of In-Line Phase Sensitive Amplifier based on PPLN Waveguides” ECOC 2012 Paper Tu.3.E.1 2012

81) T. Umeki, M. Asobe, H. Takara, Y. Miyamoto “Phase-sensitive amplification of coherent multicarrier pair with 3-dB signal-ASE beat noise reduction” OFC 2012 Paper OTh1C3 2012

80) M. Asobe, T. Umeki, K. Enbutsu, “Chirp reduction utilizing phase squeezing property in PPLN-based phase sensitive amplifier” ECOC 2011 We 10P1.32 2011

79) M. Asobe, T. Umeki, O. Tadanaga “First demonstration of noise figure below 3 dB in CW pumped phase sensitive amplifier using PPLN waveguide” CLEO 2011 PDPB10 2011

78) T. Umeki, O. Tadanaga, A. Takada, M. Asobe “Phase sensitive degenerate parametric amplification using highly efficient PPLN ridge waveguides”OFC 2011 paper OthU6 2011

77) A. Tokura, O. Tadanaga, I. Tomita and M. Asobe “4.6 mm-band difference frequency generation in LiNbO3 ridge waveguide for trace gas detection” TDLS 2011 Paper F6 2011

76) T. Kubo, T. Umeki, T. Kanai, H. Suzuki, H. Hadama, M. Asobe “A high-speed visible light indoor network employing a short pulse modulation and a QPM-LN module” OFC 2011 paper JWA73 2011

75) H.Song, O. Tadanaga, T. Umeki, I Tomita, M. Asobe, S. Yamamoto, K. Mori, and K. Yonenaga　"Flexible waveband conversion using Multiple-QPM-LiNbO3 waveguides” European Conference on Optical Communication (ECOC) '2009, Torino Italy Paper We6.E.3

74) (Invited) M. Asobe, T. Umeki, O. Tadanaga, H.B. Song, I. Tomita, and K. Magari, “QPM wavelength conversion using engineered LiNbO3 waveguides” CLEO ’10 paper CMG1 2010

73) (Invited) M. Asobe, T. Umeki, O. Tadanaga,; H.B. Song, I. Tomita, “Grouped wavelength conversion using engineered QPM device” CLEO/PACIFIC RIM '09 paper WH3-2 30-3 Aug. 2009

72) T. Umeki, O. Tadanaga, M. Asobe, “High quality and efficient QPM-LiNbO3 wavelength converter integrated with 0.78/1.56-µm wavelength multiplexer” ECOC '09 paper 5.2.5 20-24 Sept. 2009

71) I. Tomita, T. Umeki, O. Tadanaga, H. Song, and M. Asobe, "Apodized multiple quasi-phase-matched LiNbO3 device for wavelength conversion with low crosstalk", The 15th Micro-Optics Conference (MOC), Oct. 25-28, Odaiba, Tokyo, No.D4 (2009).

70) T. Kubo, T. Umeki, T. Taniguchi, O. Tadanaga, N. Sakurai, H. Kimura, K. Kumozaki, and M. Asobe “Temperature-Independent Monitoring Technique with Visible Light for Optical Access Systems Using Chirped QPM Device” The 15th Micro-Optics Conference (MOC), Oct. 25-28, Odaiba, Tokyo, No.F7 (2009)

69) T. Nishikawa, Y. Nishida, M. Asobe, F.L. Hong, A. Ozawa, T.W. Hansch, “Efficient 494-mW Sum-frequency Generation of 589-nm Light by Using a Periodically Poled LiNbO3 Ridge Waveguide” CLEO Europe - EQEC 2009 paper CD6.5 June 2009

68) Q. Zhang, H. Takesue, T. Honjo, K. Wen, T. Hirohata, M. Suyama, Y. Takiguchi, H. Kamada, Y. Tokura, O. Tadanaga, Y. Nishida, M. Asobe, Y. Yamamoto, “Megabits secure key rate quantum key distribution” CLEO/QELS 2009 paper ITuI1 2-4 June 2009

67) J.F. Dynes, H. Takesue, Z.L. Yuan, A.W. Sharpe, K. Harada, T. Honjo, H. Kamada, O. Tadanaga, Y. Nishida, M. Asobe, A.J. Shields, “Ultra-long distance and efficient entanglement distribution over 200 kilometers” CLEO/QELS 2009 paper IPDA7 2-4 June 2009

66) A. Ishizawa, T. Nishikawa, S. Aozasa, A. Mori, Y. Hiraki, O. Tadanaga, M. Asobe, H. Nakano, “Efficient carrier envelope offset locking for a frequency comb by modifying a collinear f-to-2f interferometer” CLEO/QELS 2009 paper CTuK6 2-4 June 2009

65) O. Tadanaga, Y. Nishida, T. Yanagawa, K. Magari, T. Umeki, M. Asobe, “Compact 4.3-µm difference frequency generation light source for spectroscopy of CO2 isotopomer” CLEO/QELS 2009 paper CThS7 2-4 June 2009

64) H.B. Song, O. Tadanaga, T. Umeki, I. Tomita, H. Ishii, H. Oohashi, M. Asobe, “Dynamic grouped-wavelength conversion using multiple-QPM LiNbO3 module and TLA” OFC 2009 Paper. OThG6 22-26 March 2009

63) M. Asobe, T. Umeki, O. Tadanaga, K. Yoshino, E. Yamazaki, A. Takada, “Multiple-QPM LiNbO3 waveguide module for variable batch wavelength conversion with low crosstalk” ECOC 2008 Paper Th.2.C.6 21-25 Sept. 2008

62) T. Kubo, T. Taniguchi, O. Tadanaga, N. Sakurai, H. Kimura, K. Kumozaki, M. Asobe, “In-line monitoring technique with visible light for optical access systems by using 1.3 µm-band QPM-LN module” OECC 2009 paper WH5 13-17 July 2009

61) A. Ishizawa, T. Nishikawa, H. Nakano, S. Aozasa, A. Mori, O. Tadanaga, M. Asobe, “Demonstration of locking carrier envelope offset by using low pulse energy” CLEO/QELS 2008 paper CThU4 San Jose, CA May 2008.

60) Y.　Iwai, T. Honjo, K. Inoue, H. Kamada, Y. Nishida, O. Tadanaga, M. Asobe, “Polarization independent DPS-QKD system using up-conversion detectors” CLEO/QELS 2008 paper QWB5 San Jose, CA 4-9 May 2008.

59) T. Honjo, S.W. Nam, H. Takesue, Q. Zhang, H. Kamada, Y. Nishida, O. Tadanaga, M. Asobe, B. Baek, R. Hadfield, S. Miki, M. Fujiwara, M. Sasaki, Z. Wang, K. Inoue, Y. Yamamoto, “Entanglement-based BBM92 QKD experiment using superconducting single photon detectors” CLEO/QELS 2008 paper QWB1 2008

58) (Invited) T. Umeki, M. Asobe, T. Yanagawa, O. Tadanaga, Y. Nishida, K. Magari, H. Suzuki “Widely tunable mid-infrared DFG using apodized c(2) grating and its application to gas spectroscopy” European Conference on Integrated Optics 2008 Fr2 2008

57) T. Umeki, O. Tadanaga, M. Asobe, “Wavelength conversion module with +4 dB gain using direct-bonded QPM-Zn: LiNbO3 ridge waveguide CLEO/QELS 2008. CFR5 San Jose, CA May 2008.

56) M. Asobe, O.Tadanaga, T. Yanagawa, T.Umeki and Y. Nishida, “Multiple wavelength mid-infrared DFG source using engineered QPM Zn:LiNbO3 waveguide” Laser Applications to Chemical, Security and Environmental Analysis” ‘08 Paper JMA21 2008

55) (Invited) D. Richter, P. Weibring, A. Fried, J.G. Walega, O. Tadanaga, M. Asobe, and H. Suzuki, "Mid-infrared QPM laser sources for high-precision atmospheric trace gas measurements," Lase ‘08, 6875-18, (Proc. SPIE 6875-18, 2008)

54) M. Asobe, Y. Nishida, O. Tadanaga, T. Yanagawa, T. Umeki, H. Suzuki, “65-mW, 3.4-μm tunable difference frequency generation source using damage resistant Zn:LiNbO3 waveguide” CLEO Europe-IQEC 2007 paper 17-22 June 2007

53) T.　Honjo, S.W. Nam, H. Takesue, Q. Zhang, H. Kamada, Y. Nishida, O. Tadanaga, M.　Asobe, B. Baek, R. Hadfield, S. Miki, M. Fujiwara, M. Sasaki, Z. Wang, K. Inoue, Y.　Yamamoto, “Entanglement-based BBM92 QKD experiment using superconducting single photon detectors”CLEO/QELS 2008 paper QWB1 San Jose, CA

52) M. Asobe, T. Yanagawa, O. Tadanaga, T. Umeki, Y. Nishida, H. Ishii, and H. Suzuki, “Multi-wavelength mid-infrared light source using multi-quasi-phase-matched LiNbO3 waveguide and tunable laser diode array” Nonlinear Photonics 2007 paper NTuA2 2007

51) T. Umeki, M. Asobe, Y. Nishida, O. Tadanaga, K. Magari, T. Yanagawa, H. Suzuki, “Wavelength Converter with +5 dB Parametric Gain Using Direct-Bonded QPM-Zn: LiNbO3 Ridge Waveguide” ECOC 2007 paper 6.3.3 2007

50) T. Umeki, M. Asobe, Y. Nishida, O. Tadanaga, K. Magari, T. Yanagawa, H. Suzuki, “Detection of multiple hydroxarbon gases by broadband difference frequency generation using apodized c(2) grating“ OECC 2007 Paper 12E1-2 2007

49) D. Richter, P. Weibring, A. Fried, O. Tadanaga, Y. Nishida, M. Asobe, H. Suzuki,” 15 mW, Tunable Difference Frequency Generation Source for Absorption Spectroscopy” CLEO/QELS 2007 Paper.JThD77 6-11 May 2007.

48) M. Asobe, O. Tadanaga, T. Umeki, T. Yanagawa, Y. Nishida, K. Magari, H. Suzuki, “Engineered quasi-phase matching device for unequally spaced multiple wavelength generation” CLEO 2007 Paper CTuK6 6-11 May 2007

47) T. Umeki, M. Asobe, Y. Nishida, O. Tadanaga, K. Magari, T. Yanagawa, H. Suzuki, ”Widely tunable 3.4-mm-band wavelength converter using apodized c(2) grating"IEEE LEOS 2006 Paper. ThC3, Oct. 2006

46) O. Tadanaga, Y. Nishida, T. Yanagawa, K. Magari, T. Umeki, M. Asobe, H. Suzuki, “Compact sub-mW mid-infrared DFG laser source using direct-bonded QPM-LN ridge waveguide and laser diodes” Lase 2007 (Proc. SPIE 6455, 64550D, 2007)

45) T. Yanagawa, O. Tadanaga, Y. Nishida, H. Miyazawa, K. Magari, M. Asobe, H. Suzuki, “Methane detection in ambient air by difference frequency generation using a direct-bonded periodically poled LiNbO3 ridge waveguide” IEEE LEOS 2006 Paper. TuG5, Oct. 2006

44) K. Magari, T. Yanagawa, O. Tadanaga, Y. Nishida, H. Miyazawa, M. Asobe, H. Suzuki “Fine observation of 3.3-micron CH4 absorption by efficient DFG using single-mode pump LD and QPM-LN waveguide” OECC 2006 7B1-3 2006

43) O. Tadanaga, Y. Nishida, T. Yanagawa, K. Magari, T. Umeki, K. Yoshino, M. Asobe, H. Suzuki, H. Miyazawa, “Efficient mid-infrared wavelength conversion modules based on difference frequency generation in direct-bonded quasi-phase-matched LiNbO3 ridge waveguides” CLEO/QELS 2006 Paper.CThG1 21-26 May 2006

42) T. Yanagawa, O. Tadanaga, Y. Nishida, H. Miyazawa, K. Magari, M. Asobe, H. Suzuki, “Efficient broadband difference frequency generation in direct-bonded periodically-poled LiNbO3 waveguide and the observation of CO isotopomer absorption from 2.30 to 2.45 mm” Lase 2006 (Proc of SPIE 6103 60130O 2006 )

41) M. Asobe, Y. Nishida, H. Miyazawa, O. Tadanaga, K. Magari, T. Yanagawa, H. Mawatari, H. Suzuki, “Laser diode pumped 560-590 nm light source using sum-frequency generation in direct bonded quasi-phase matched LiNbO3 waveguide” CLEO 2005 Paper. CML3 22-27 May 2005

40) O. Tadanaga, M. Asobe, Y. Nishida, H. Miyazawa, K. Yoshino, H. Suzuki,” 763-nm second-harmonic-generation laser light source using direct-bonded quasi-phase-matched LiNbO3 ridge waveguide” CLEO/Pacific Rim 2005, Paper CFI4-2 30-02 Aug. 2005

39) O. Tadanaga, T. Yanagawa, Y. Nishida, H. Miyazawa, K. Magari, M. Asobe, H. Suzuki, “Widely tunable 2-micron-band difference frequency generation in direct-bonded quasi-phase-matched LiNbO3 ridge waveguide” CLEO 2005 Paper CML5 22-27 May 2005

38) O. Tadanaga, T. Yanagawa, Y. Nishida,, H. Miyazawa, K. Magari, M. Asobe, H. Suzuki “Mid-IR light source utilizing difference frequency generation in direct-bonded quasi-phase-matched LiNbO3 ridge waveguide” OECC ’04 PD2-5 2004

37) Y. Nishida, H. Miyazawa, M. Asobe, O. Tadanaga, E. Kubota, H. Suzuki, “Efficient parametric wavelength conversion using direct-bonded QPM-ZnO-doped LiNbO3 ridge waveguide” CLEO 2004 Paper CFA1 16-21 May 2004

36) N. Shimizu, T. Nagatsuma, O. Tadanaga, H. Miyazawa, M. Asobe, “All-optical multichannel simultaneous up-conversion for microwave fiber-optic link” OFC 2004 Paper FE4 23-27 Feb. 2004

35) M.　Asobe, O. Tadanaga, H. Miyazawa, Y. Nishida, H. Suzuki,　“High-speed wavelength switching of 40-Gb/s-based WDM signals using a multiple-QPM LiNbO3 waveguide tailored for the ITU-T grid”OFC 2004 Paper FL5 23-27 Feb. 2004.

34) E. Yamazaki, A. Takada, J. Yamawaku, T. Morioka, H. Miyazawa, O. Tadanaga, M. Asobe, “Wavelength conversion and multi-carrier generation using quasi-phase-matched LiNbO3 waveguides operating on optical frequency grid” CLEO 2004 Paper CFN2 16-21 May 2004

33) E.　Yamazaki, A. Takada, J. Yamawaku, T. Morioka, O. Tadanaga, M. Asobe,　“Simultaneous and arbitrary wavelength conversion of WDM signals using multiple wavelength quasi phase matched LiNbO3 waveguide” OFC 2004　Paper　FL6　23-27 Feb. 2004

32) J. Yamawaku, A. Takada, E. Yamazaki, O. Tadanaga, H. Miyazawa, M. Asobe, “Selective wavelength conversion using PPLN waveguide with two pump configuration” CLEO '03 Paper CWB5 1-6 June 2003

31) M.Asobe, O.Tadanaga, H. Miyazawa, Y. Nishida, and H. Suzuki：”Highly flexible and robust multiple quasi-phase matched LiNbO3 wavelength converter”, CLEO, Baltimore CWB3, 2003

30) Y. Nishida, H. Miyazawa, M.Asobe, O.Tadanaga, and H. Suzuki ”Efficient wavelength conversion using direct-bonded QPM-LN ridge waveguide”, CLEO, Baltimore CWB4, 2003

29) J. Yamawaku, H. Takara, T. Ohara, K. Sato, A. Takada, T. Morioka, O. Tadanaga, H. Miyazawa, M.Asobe, “Inter-band wavelength conversion of 25 GHz-spaced 1.03 Tbit/s (103×10 Gbit/s) DWDM signals with small guard band and low crosstalk in PPLN waveguide” CLEO '03 Paper CthPDB2 1-6 June 2003

28) J. Yamawaku, O. Tadanaga, A. Takada, H. Miyazawa, E. Yamazaki, and M. Asobe：”Selective wavelength conversion using PPLN waveguide with two pumps configuratio”’, CLEO, Baltimore CWB5, 2003

27) O.Tadanaga, M.Asobe, H. Miyazawa, Y. Nishida, and H. Suzuki：’Variable optical frequency shifter using multiple quasi-phase-matched LiNbO3 wavelength converters’, OFC, Atlanta, FP3 ,2003

26) M. Asobe, O.Tadanaga, H. Miyazawa, Y. Nishida, and H. Suzuki：’Quasi-phase matched LiNbO3 wavelength converter for optical communication’, CPT, Tokyo, F-2, 2003

25) M. Asobe, O.Tadanaga, H. Miyazawa, Y. Nishida, and H. Suzuki：’Multiple-quasi-phase matched wavelength converters using continuously-phase modulated periodically poled LiNbO3’, LEOS, Glasgow, PD 2.3 , 2002.

24) O. Tadanaga, M. Asobe, H. Miyazawa, Y. Nishida, H. Suzuki, “Highly-damage-resistant quasi-phase-matched wavelength converter using ZnO-doped LiNbO3” IEEE LEOS 2002 Paper MJ3 10-14 Nov. 2002.

23) M. Asobe, O.Tadanaga, H. Miyazawa, Y. Nishida, and H. Suzuki：’40Gbit/s x 6 channel wavelength conversion using a quasi-phase matched LiNbO3 waveguide module’, OECC ,Yokohama, PD-2-8, 2002.

22) O. Tadanaga, M. Asobe, H. Miyazawa, Y. Nishida, H. Suzuki, “A 1-THz optical frequency shifter using quasi-phase-matched LiNbO3 wavelength converters” OFC 2002 Paper ThDD1 17-22 Mar 2002

21) M. Asobe, H. Miyazawa, O. Tadanaga, H. Suzuki, “Polarization independent wavelength conversion in a periodically poled Zn:LiNbO3 ridge waveguide” CLEO '02. Paper. CThK3 2002

20) M. Asobe, O. Tadanaga, H. Miyazawa, and H. Suzuki, “Parametric wavelength conversion and amplification using periodically poled Zn:LiNbO3 waveguide” Nonlinear Guided Waves and their Applications (NLGW) 2001 Paper WA2 2001

19) A. Hirano, M. Asobe, K. Sato, K. Yonenaga, Y. Miyamoto, H. Takara, I. Shake, H. Miyazawa, M. Asobe, “Dispersion tolerant 80 Gbit/s optical-time-division-multiplexing using a duty-and phase-control technique” ECOC 99, We C1.3

18) M. Asobe, A. Hirano, Y. Miyamoto, K. Sato, K. Hagimoto, Y. Yamabayashi “Noise reduction of 20 Gbit/s pulse train using spectrally filtered optical solitons” Nonlinear Guided Waves and Their Applications (NLGW) '98 Paper NFC3 1998

17) K. Sato, A. Hirano, M. Asobe, H. Ishii, “Chirp-compensated 40-GHz mode-locked lasers integrated with electroabsorption modulators and chirped gratings” ISLC 1998. IEEE 16th International Semiconductor Laser Conference, Paper TuD4 1998 NARA. 4-8 Oct. 1998 Page(s):89 - 90

16) K. Sato, I. Kotaka, A. Hirano, M. Asobe, Y. Miyamoto, N. Shimizu, K. Hagimoto, “High-repetition frequency pulse generation at >100 GHz using mode-locked lasers integrated with electroabsorption modulators” CLEO 98. Paper CThR6 3-8 May 1998

15) M. Asobe, I. Yokohama, H. Itoh, T. Kaino, “All-optical switching using cascading of phase-matched sum-frequency and difference-frequency generation in periodically poled LiNb03” CLEO '97 Paper CML3 May 18-23, 1997

14) M. Asobe, A. Hirano, K. Hagimoto, K. Sato, K. Naganuma, “Noise and chirping characteristics of electroabsorption modulator integrated modelocked laser diodes” CLEO '97. Paper CtuP21May 18-23, 1997.

13) (Invited) M. Asobe, T. Oohara, I. Yokohama, T. Kaino “Low-Power All-Optical Switching Using Chalcogenide Glass Fibers” Nonlinear Guided Waves and Their Applications (NLGW) '96 Cambridge, UK 1996

12) S. Tomaru, T. Watanabe, M. Hikita, M. Amano, Y. Shuto, H. Itoh, I. Yokohama, M. Asobe, “Quasi-phase-matched second harmonic generation in an electro-optic polymer waveguide” Organic Thin films for Photonic Applications topical meeting ’95 ThB5

11) M. Tsukada, W. D. Zhong, T. Matsunaga, M. Asobe, T. Ohara、”Bit-interleave multiplexing photonic ATM switch and its experiments on cell selection at 55-Gbit/s” ECOC’95, WeL.1.6

10) I. Yokohama, H. Itoh, M. Asobe, A. Yokoo, T. Kaino, “Nonlinear optical fiber devices” CLEO’95 CMG1

9) N. Ooba, M. Asobe, S. Tomaru, T. Kurihara, I.Yokohama, T. Kaino, W. Yamada, M. Takagi, T. Yamamoto, “Third order optical nonlinearities and channel waveguide fabrication of processable p-conjugated poly(aryleneethynylenr) type polymer” 2nd International Conference on Organic Nonlinear Optics, AP03, 1995

8) M. Asobe, I. Yokohama, T. Kaino, S. Tomaru, T. Kurihara, “Dispersive nonlinear absorption in organic polymer waveguide at 1.5 mm wavelength region” 2nd International Conference on Organic Nonlinear Optics, D06, 1995

7) M. Asobe, T. Kanamori “Nonlinear optical properties of chalcogenide glass fibers and their application for all-optical switching” International Workshop on “Advanced Materials for Multifunctional Waveguides”, 1995

6) M. Asobe, T. Kanamori, K. Naganuma, H. Itoh, T. Kaino, “Ultrafast and efficient optical Kerr effects in chalcogenide glass fibers and the application in all-optical switching”

IEEE Nonlinear Optics: Materials, Fundamentals, and Applications, 1994. Paper WC5 25-29 July 1994

5) T. Kaino, A. Yokoo, M. Asobe, A. Tomaru, T. Kurihara, “Organic nonlinear optical materials for device applications” 4th IKETANI Conference 1994

4) T. Nishi, K. Naganuma, Y. Sakai, M. Asobe, S. Sudo, “Amplification characteristics of femtosecond optical pulses in short Er3+doped phosphate fibers” OSA Annual Meeting, WB1, 1993

3) M. Asobe, T. Kanamori, H. Kobayashi, and H. Itoh, “Laser-diode-driven ultrafast all-optical switch using a highly-nonlinear chalcogenide glass fiber” Third OITDA international forum “New aspects of nonlinear optics and optical processing”, 1993

2) H. Kanbara, M. Asobe, K. Kubodera, T. Kurihara, T. Kaino, “All optical picosend switch using organic single-mode fiber waveguide”, OEC’92, 16B-1-5, 1992.

1) M. Asobe, T. Kanamori, K. Kubodera, “Ultrafast all-optical switching utilizing highly nonlinear chalcogenide glass fiber”, CLEO ’92, JWA6, 1992

解説

17) 遊部　雅生、酒井　駿一、立崎　武弘　“広帯域中赤外レーザの発生手法と期待される分光応用”　Optoronics Vol.36, No.7 p.101 (2017)

16) 竹ノ内弘和、梅木毅伺、遊部雅生、宮本裕 “ＰＰＬＮを用いた位相感応増幅技術” O Plus E　vol429 ２０１５　８月号　p.636-639

15) 遊部　雅生　“周期分極反転LiNbO3（PPLN）導波路を用いた低雑音位相感応増幅器”　電子情報通信学会誌　　vol. 96 No.9 pp.731-736 (2013)

14) 遊部　雅生　“PPLN導波路を用いた波長変換技術" O Plus E Vol.32 (8) pp.940-944 2010

13) O. Tadanaga, T. Yanagawa, M. Asobe “Mid-infrared wavelength conversion laser for highly sensitive gas detection” NTT Tech. Rev. Vol.7 No.1 Jan. 2009 p.1

12) 遊部　雅生 “分極反転を用いた光通信波長変換デバイス“　光学　vol. 36 (5) p.246 (2007)

11) 鎌田、俵、山口、武居、本庄、西田、忠永、遊部、井上　“通信波長帯単一光子・エンタングル光子対の発生と伝送” 光学　vol. 37 (8) p. 447 (2008)

10) 忠永、柳川、西田、遊部、鈴木　“擬似位相整合LiNbO3リッジ導波路による高効率中赤外差周波発生”　レーザ研究　vol.36 (2) pp.64-69 (2007)

9) M. Sugo, H. Suzuki, Y. Kondo, Y.Nishida, M. Asobe, Y. Shibata, M. Mitsuhara, and T. Watanabe, “Applications of Telecom Light Sources to Non-telecom Fields” NTT Tech. Rev. Vol.3, No.8, pp.12-31 (2005)

8) Y. Nishida, M. Asobe, H. Suzuki, “Wavelength conversion laser” NTT Tech. Rev. Vol.3 No.8 Aug. 2005 p.15

7) M. Asobe, O. Tadanaga, H. Miyazawa, Y. Nishida, H. Suzuki, “Wavelength Conversion Devices Using Quasi-phase-matched LiNbO3” NTT Tech. Rev. Vol.1 No.1 Apr. 2003 p.15

6) 西田好毅、遊部　雅生、宮澤　弘、忠永　修、鈴木　博之　“擬似位相整合LiNbO3素子による波長変換“　レーザ研究　vol.32 (8) pp.512-517 (2003)

5) 遊部　雅生、金森　照寿　“カルコゲナイドガラスファイバの能動的光デバイスへの応用”　応用物理　第69巻　第7号　(2000年)　pp.797-803

4) S. Kawanishi, Y. Miyamoto, M. Asobe, A. Takada, „” Trends in terabit/s optical transmission technology” NTT Review vol.11 (4), p33-42 (1999)

3) T. Kaino, M. Asobe, S. Tomaru, T. Kurihara, T. Kanamori, “Ultrafast nonlinear optical switches” NTT Review, vol.7, p.47 (1996)

2) 遊部　雅生、横浜　至、金森　照寿 “カルコゲナイドガラスファイバの非線形光学素子への応用“　New Glass vol.11 (4) pp.31-37 (1996)

1) 遊部　雅生、久保寺憲一、金森　照寿　“カルコゲナイドガラスファイバを用いた全光スイッチングデバイス” レーザ研究　vol.21 (1) pp.1156-1165 (1993)