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 Conference Papers (Available on Advance Programs)  (Sort by: Date Descending)
 Results 21 - 35 of 35 [Previous]  /   
Committee Date Time Place Paper Title / Authors Abstract Paper #
PN 2010-03-09
14:20		 Okinawa Ohama Nobumoto Memorial Hall Study on Polymer Integrated Photonic Switching Circuit
Nan Xie, Hiroaki Mori, Takuya Tatsuzaki, Takafumi Hashimoto, Katsuyuki Utaka (Waseda Univ.) PN2009-100		 We propose a system of easily fabricated very low power consumption thermo-optic polymer photonic switches, tunable poly... [more] PN2009-100
pp.79-84
LQE, OPE 2009-06-19
09:55		 Tokyo Kikai-Shinko-Kaikan Bldg. Polarization-independent and Low-Crosstalk Operation of InAlGaAs/InAlAs Mach-Zehnder Interferometer-Type Photonic Switch with Hybrid-waveguide Structure
Yuta Ueda, Shinji Fujimoto, Hiroto Yamada, Shinya Nakamura, Katsuyuki Utaka (Waseda Univ.), Takashi Shiota, Takeshi Kitatani (Hitachi, Ltd.) OPE2009-18 LQE2009-21		  [more] OPE2009-18 LQE2009-21
pp.13-17
PN 2009-03-09
15:55		 Okinawa Yonaguni Island [Fellow Memorial Lecture] From single-wavelength Semiconductor Laser diodes to Optical Switches, and ... -- Invitation to Cross-Field Interchange --
Katsuyuki Utaka (Waseda Univ.) PN2008-92		 The research themes which the author followed so far, their motivation, the importance of cross-field interchange and fu... [more] PN2008-92
pp.47-52
PN, OPE, EMT, LQE 2009-01-30
11:30		 Kyoto Kyoto Institute Technology (Matsugasaki Campus) Lowest Power Consumption Polymer Thermo-optic Photonic Switch
Nan Xie, Katsuyuki Utaka (Waseda Univ.) PN2008-65 OPE2008-168 LQE2008-165		 We present a compact, very low power consumption, polarization independent, and relatively high-speed polymer Mach-Zehnd... [more] PN2008-65 OPE2008-168 LQE2008-165
pp.131-134
PN, OPE, EMT, LQE 2009-01-30
14:00		 Kyoto Kyoto Institute Technology (Matsugasaki Campus) Improvement of Filtering Characteristics of Bragg Grating Formed on Silicon Waveguide by Deep-RIE Etching
Junya Matsui, Hiroki Takahashi, Nan Xie, Katsuyuki Utaka (Waseda Univ.) PN2008-69 OPE2008-172 LQE2008-169		 With the increase of communication capacity by WDM, low-cost and high-performance optical devices using Si waveguide on ... [more] PN2008-69 OPE2008-172 LQE2008-169
pp.151-154
OPE, LQE 2008-06-27
10:10		 Tokyo Kikai-Shinko-Kaikan Bldg Compact and Low Power Consumption Polymer Multimode Interference Photonic Switch
Nan Xie, Katsuyuki Utaka (Waseda Univ.) OPE2008-19 LQE2008-20		 We demonstrate a compact polymer-based photonic switch with low power operation of 9mW. This compact polymer switch exhi... [more] OPE2008-19 LQE2008-20
pp.7-10
PN 2008-03-14
11:20		 Okinawa Ohama-Nobumoto-Kinenkan (Ishigakijima) Low-current Operation of InAlGaAs/InAlAs/InP Mach-Zehnder Interferometer Type Multi-mode Interference Photonic Switch (MIPS-MZ)
Yuta Ueda, Shinya Nakamura, Katsuyuki Utaka (WASEDA University), Takashi Shiota, Takeshi Kitatani (Central Research Laboratory, Hitachi, Ltd.) PN2007-87		 We fabricated an InAlGaAs/InAlAs/InP semiconductor photonic switch with a Mach-Zehnder interferometer (MZI) and multi-mo... [more] PN2007-87
pp.75-79
LQE, OPE 2007-06-29
14:25		 Tokyo Kikai-Shinko-Kaikan Bldg. Study on operation conditions for high-speed nonlinear response in semiconductor optical amplifier
Motoki Hasegawa, Katsuyuki Utaka (Waseda Univ.) OPE2007-23 LQE2007-24		 Since a semiconductor optical amplifier (SOA) has high nonlinearity, the application to an optical switch and a waveleng... [more] OPE2007-23 LQE2007-24
pp.35-40
OPE, EMT, LQE, PN 2007-01-30
09:50		 Osaka Osaka Univ. Convention Center Fabrication and Evaluation of Band Selection Interleaver on Silicon Waveguide
Junya Matsui, Soichiro Honda, Zhigang Wu, Katsuyuki Utaka, Tomohiko Edura, Masahide Tokuda, Ken Tsutsui, Yasuo Wada (Waseda Univ.) PN2006-66 OPE2006-148 LQE2006-137		  [more] PN2006-66 OPE2006-148 LQE2006-137
pp.109-112
OPE, EMT, LQE, PN 2007-01-30
11:05		 Osaka Osaka Univ. Convention Center Analysis of Optical Signal Regenerating Directional Coupler Loaded with SOA and Long-Period Grating
Takanori Ochiai, Yasuhiro Kawakami, Katsuyuki Utaka (Waseda Univ.) PN2006-69 OPE2006-151 LQE2006-140		  [more] PN2006-69 OPE2006-151 LQE2006-140
pp.125-129
LQE, PN, OPE, OFT, EMT 2006-01-31
13:25		 Hyogo Kobe Univ. High-speed optical switching of InAlGaAs/InAlAs multi-mode interference photonic switch with partial index-modulation region(MIPS-P)
Tomohiro Ishikawa, Shingo Kumai, Atsuki Okazaki, Katsuyuki Utaka (Waseda Univ.), Hidetaka Amanai, Kaori Kurihara, Kenji Shimoyama (Mitsubishi Chemical Corp.) 		Optical packet switching is expected in advanced photonic networks, and optical switches used in these systems are requi... [more] PN2005-63 OFT2005-50 OPE2005-111 LQE2005-126
pp.7-10
LQE, PN, OPE, OFT, EMT 2006-02-01
09:25		 Hyogo Kobe Univ. Design, fabrication and evaluation of feasible SOI rib waveguides with medium mode size
Zhigang Wu, Kazuhiko Nakamura, Soichiro Honda, Katsuyuki Utaka, Tomohiko Edura, Masahide Tokuda, Ken Tsutsui, Yasuo Wada (Waseda Univ.) 		SOI (silicon-on-insulator) wafers became popular platforms for photonic integration. Rib waveguides on the SOI wafers ha... [more] PN2005-71 OFT2005-58 OPE2005-119 LQE2005-134
pp.7-12
PN, OPE, OFT, LQE 2005-01-28
11:15		 Osaka Osaka University Analysis on high-speed semiconductor optical amplifier with an assist light and opertion of interferometer-type wavelength converters
Atsushi Matsumoto, Katsuyuki Utaka (Waseda Univ.), Kosuke Nishimura, Masashi Usami (KDDI Labs.) 		 [more] PN2004-101 OFT2004-107 OPE2004-208 LQE2004-155
pp.17-21
PN, OPE, OFT, LQE 2005-01-28
15:45		 Osaka Osaka University Tapered MMI-based integrated-optical combiners for coherent receivers
Zhigang Wu, Kazuhiko Nakamura, Soichiro Honda, Katsuyuki Utaka (Waseda Univ.) 		We theoretically analyze the characteristics of tapered MMI-based coherent lightwave combiners and experimentally presen... [more] PN2004-108 OFT2004-114 OPE2004-215 LQE2004-162
pp.55-60
PN 2004-08-20
15:55		 Hokkaido KKR Hakodate Multi-Mode Interference Photonic Switches with Partial Index-Modulation Regions(MIPS-P) using InAlGaAs/InAlAs for higher performance
Atsuki Okazaki, Shingo Kumai, Tomohiro Ishikawa, Katsuyuki Utaka (Waseda Univ.), Kaori Kurihara, Kenji Shimoyama (MITSUBISHI CHEMICAL CORP.) 		 [more] PN2004-47
pp.77-80
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