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 Conference Papers (Available on Advance Programs)  (Sort by: Date Descending)
 Results 1 - 20 of 22  /  [Next]  
Committee Date Time Place Paper Title / Authors Abstract Paper #
OCS, OPE, LQE 2021-11-12
15:40
Online Online [Special Invited Talk] uncooled 112Gb/s PAM4 InGaAlAs-MQW-DFB-BH laser
Kouji Nakahara, Kazuki Suga, Kaoru Okamoto, Shigenori Hayakawa, Masatoshi Arasawa, Tetsuya Nishida, Ryu Washino, Takeshi Kitatani, Masatoshi Mitaki, Hironori Sakamoto, Yasushi Sakuma, Shigehisa Tanaka (Lumentum) OCS2021-25 OPE2021-45 LQE2021-24
Directly modulated lasers that have cost effective, small footprint and low power consumption are attractive as transmis... [more] OCS2021-25 OPE2021-45 LQE2021-24
pp.20-23
OPE, OCS, LQE 2018-05-11
17:05
Tokyo Kikai-Shinko-Kaikan Bldg (Tokyo) [Special Invited Talk] Investigation of reduced skew of 106-Gb/s PAM4 waveform with optical orthogonal polarization multiplexing by utilizing 1.3-um directly modulated lasers
Kouji Nakahara (Oclaro), Riu Hirai (Hitachi), Takeshi Kitatani (Oclaro), Nobuhiko Kikuchi (Hitachi), Takayoshi Fukui, Kaoru Okamoto, Yasushi Sakuma, Kohichi R. Tamura, Shigehisa Tanaka (Oclaro) OCS2018-9 OPE2018-9 LQE2018-9
One of technical issues of PAM-4 modulation by utilizing directly modulated lasers is distorted into a shew shape eye-di... [more] OCS2018-9 OPE2018-9 LQE2018-9
pp.31-34
OPE, LQE 2014-06-20
14:50
Tokyo   Investigation of 56-Gb/s direct modulation in 1.3-um InGaAlAs MQW RS-BH DFB lasers
Kouji Nakahara, Yuki Wakayama, Takeshi Kitatani, Takafumi Taniguchi (Hitachi), Toshihiko Fukamachi, Yasushi Sakuma (Oclaro), Shigehisa Tanaka (Hitachi) OPE2014-17 LQE2014-22
Demands for the highly efficient transmission of large amounts of data capacity have become pressing with the explosive ... [more] OPE2014-17 LQE2014-22
pp.23-26
LQE, OPE 2013-06-21
15:50
Tokyo   28-Gbps Direct Modulation with High Mask Margin of 1.3-um DFB Lasers with Asymmetric Corrugation-Pitch-Modulated Grating
Yuki Wakayama, Kouji Nakahara, Kenji Hiruma, Takeshi Kitatani, Kazunori Shinoda (Hitachi), Toshihiko Fukamachi, Yasushi Sakuma (Oclaro Japan), Shigehisa Tanaka (Hitachi) OPE2013-14 LQE2013-24
We have developed 1.3-um directly modulated DFB lasers operating at 28 Gbps at 55℃ for 100GbE optical transceivers with ... [more] OPE2013-14 LQE2013-24
pp.39-42
PN 2012-03-12
14:55
Nagasaki BaramonNetKan [Encouragement Talk] 4x4 InAlGaAs/InAlAs Optical Switch Fabric by Cascading Mach-Zehnder Interferometer-type Optical Switches with Low-power and Low-polarization-dependent Operation
Yuta Ueda, Noriaki Koyama, Kazuki Kambayashi, Shinji Fujimoto, Katsuyuki Utaka (Waseda Univ.), Takashi Shiota, Takeshi Kitatani (Hitachi) PN2011-89
High-speed optical switches are essential devices to construct next generation optical networks. We have studied on 2 x ... [more] PN2011-89
pp.43-47
CPM, OPE, LQE, EMD 2011-08-25
15:00
Hokkaido Hokkaido Univ. Multiple-wavelength 25-Gb/s Surface-emitting DFB Laser Array
Kazunori Shinoda, Koichiro Adachi, Takeshi Kitatani (Hitachi/PETRA), Yasunobu Matsuoka, Toshiki Sugawara (Hitachi), Shinji Tsuji (Hitachi/PETRA) EMD2011-39 CPM2011-83 OPE2011-74 LQE2011-37
Multiple-wavelength 25-Gb/s operation of a 1.3-μm lens-integrated surface-emitting laser array for massive data links is... [more] EMD2011-39 CPM2011-83 OPE2011-74 LQE2011-37
pp.41-44
LQE, OPE 2011-06-30
09:45
Tokyo Kikai-Shinko-Kaikan Bldg. Wavelength Tunable Laser Integrated With a Lateral-Grating-Assisted Lateral Co-directional Coupler
Takanori Suzuki, Hideo Arimoto, Takeshi Kitatani, Aki Takei, Takafumi Taniguchi, Kazunori Shinoda, Shigehisa Tanaka, Shinji Tsuji (Hitachi), Jun Igarashi, Atsushi Nakamura, Kazuhiko Naoe, Masanobu Okayasu (Opnext) OPE2011-16 LQE2011-16
 [more] OPE2011-16 LQE2011-16
pp.7-10
PN 2011-03-01
12:40
Kagoshima KKR Kagoshima Keitenkaku 4 x 4 InAlGaAs/InAlAs optical switch fabric by cascading Mach-Zehnder Interferometer-type optical switches with low-power and low-polarization-dependent operation
Yuta Ueda, Noriaki Koyama, Kazuki Kambayashi, Shinji Fujimoto, Katsuyuki Utaka (Waseda Univ.), Takashi Shiota, Takeshi Kitatani (Hitachi) PN2010-71
High-speed optical switches are essential devices to construct next generation optical networks. We have studied on 2 x ... [more] PN2010-71
pp.77-80
LQE, OPE, OCS 2010-10-29
15:05
Fukuoka Mojiko Retro Town, Minato house Monolithic Lens Integration with 25-Gb/s 1.3-μm Surface-Emitting DFB Laser for Short-Reach Optical Links
Kazunori Shinoda, Koichiro Adachi, Takeshi Kitatani, Yong Lee (Hitachi/PETRA), Yasunobu Matsuoka, Toshiki Sugawara (Hitachi), Shinji Tsuji (Hitachi/PETRA) OCS2010-82 OPE2010-118 LQE2010-91
To simplify the optical coupling to an optical fiber, we developed a new 25-Gb/s 1.3-µm DFB laser, which is monoli... [more] OCS2010-82 OPE2010-118 LQE2010-91
pp.153-156
OPE, EMT, LQE, PN, IEE-EMT 2010-01-28
16:50
Kyoto   Demonstration of Wide Temperature Range 25Gbps Operation of 1.3um Directly Modulated Laser
Toshihiko Fukamachi, Takashi Shiota (Chuken/PETRA), Takeshi Kitatani (Hitachi, Ltd.,), Takuma Ban (Chuken/PETRA), Yasunobu Matsuoka, Reiko Mita (Hitachi, Ltd.,), Koichiro Adachi, Kazunori Shinoda (Chuken/PETRA), Toshiki Sugawara (Hitachi, Ltd.,), Shigehisa Tanaka, Shinji Tsuji (Chuken/PETRA), Masahiro Aoki (Hitachi, Ltd.,) PN2009-46 OPE2009-184 LQE2009-166
The uncooled 25-Gbps operation of a 1.3-μm directly modulated laser was demonstrated. This laser, which consists of a sh... [more] PN2009-46 OPE2009-184 LQE2009-166
pp.61-64
OPE, LQE, OCS 2009-10-23
16:30
Fukuoka   First Uncooled (25 to 85 degree) operation of 43-Gbps Light Source Based on InGaAlAs EA/DFB Laser Technology
Hiroaki Hayashi, Shigeki Makino, Takeshi Kitatani, Takashi Shiota, Kazunori Shinoda, Shigehisa Tanaka, Masahiro Aoki (Hitachi Ltd.), Noriko Sasada, Kazuhiko Naoe (Opnext Japan Inc.) OCS2009-79 OPE2009-145 LQE2009-104
 [more] OCS2009-79 OPE2009-145 LQE2009-104
pp.187-190
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
OCS, LQE, OPE 2008-10-24
14:30
Fukuoka Kyushu Univ. Experimental study of fast wavelength switching in a short-cavity DBR Lasers
Hideo Arimoto, Takeshi Kitatani, Tomonobu Tsuchiya, Kazunori Shinoda, Masahiro Aoki, Shinji Tsuji (Hitachi CRL) OCS2008-77 OPE2008-120 LQE2008-89
 [more] OCS2008-77 OPE2008-120 LQE2008-89
pp.153-156
LQE, CPM, EMD, OPE 2008-08-29
09:50
Miyagi Touhoku Univ. Highly reliable operation of 10-Gbps low-power-consumption lasers with InGaAlAs-InGaAsP integrated structures
Kazunori Shinoda, Shigeki Makino, Takeshi Kitatani, Takashi Shiota, Masahiro Aoki (Hitachi) EMD2008-47 CPM2008-62 OPE2008-77 LQE2008-46
We demonstrated highly reliable operation of 10-Gbps low-power-consumption lasers with InGaAlAs/InGaAsP integrated struc... [more] EMD2008-47 CPM2008-62 OPE2008-77 LQE2008-46
pp.79-82
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, OCS 2007-11-01
17:05
Fukuoka   32-nm Continuous Wavelength Tuning in Short-Cavity DBR laser array with n-doped active DBR structure
Hideo Arimoto, Takeshi Kitatani, Tomonobu Tsuchiya, Kazunori Shinoda, Aki Takei, Tsukuru Ohtoshi, Masahiro Aoki, Shinji Tsuji (Hitachi) OCS2007-54 OPE2007-109 LQE2007-95
We study a short-cavity DBR laser to realize a fast wavelength tunable laser which is a key componet for the next genera... [more] OCS2007-54 OPE2007-109 LQE2007-95
pp.65-68
CPM, LQE, OPE, EMD 2007-08-24
09:50
Hokkaido Hokaido Univ. 43-Gbit/s Operation of 1.55-mm Electro-Absorption Modulator Integrated DFB Laser Modules for 2-km Transmission
Kazuhiko Naoe, Noriko Sasada, Yasushi Sakuma, Katsuya Motoda, Tetsuya Kato, Mitsuo Akashi, Masanobu Okayasu, Kazuhisa Uomi (Opnext), Junichiro Shimizu, Takeshi Kitatani, Masahiro Aoki (Hitachi) EMD2007-44 CPM2007-65 OPE2007-82 LQE2007-45
We have developed wideband low chirp 1.55μm electro-absorption modulator integrated DFB (EA/DFB) laser for 43 Gbit/s 2-... [more] EMD2007-44 CPM2007-65 OPE2007-82 LQE2007-45
pp.83-86
LQE, OPE 2007-06-29
09:30
Tokyo Kikai-Shinko-Kaikan Bldg. Wide Temperature Range 10Gbit/s-40km/80km SMF Transmission by 1.55um InGaAlAs EA/DFB Laser
Shigeki Makino, Kazunori Shinoda, Takashi Shiota, Takeshi Kitatani, Toshihiko Fukamachi, Masahiro Aoki (Hitachi CRL), Noriko Sasada, Kazuhiko Naoe, Kaoru Okamoto, Katsuya Motoda, Yasushi Sakuma (Opnext) OPE2007-16 LQE2007-17
Uncooled electro-absorption modulator integrated DFB (EA/DFB) laser is suitable for metro area low-power consumption sma... [more] OPE2007-16 LQE2007-17
pp.1-4
OPE, EMT, LQE, PN 2007-01-29
13:25
Osaka Osaka Univ. Convention Center [Invited Talk] 1.3-μm GaInNAs-TQW-RWG Lasers
Kouji Nakahara, Koichiro Adachi, Junichi Kasai, Takeshi Kitatani, Masahiro Aoki (Hitachi Ltd., CRL) PN2006-54 OPE2006-136 LQE2006-125
The GaInNAs has an ideal band-lineup as compared with conventional long-wavelenth acitve materials. We investigated TQW... [more] PN2006-54 OPE2006-136 LQE2006-125
pp.41-44
OPE, LQE 2006-06-30
10:35
Tokyo Kikai-Shinko-Kaikan Bldg. Reduced threshold current in 1.3μm GaInNAs-SQW RWG-LD with Al free MBE growth
Koichiro Adachi, Kouji Nakahara, Junichi Kasai, Takeshi Kitatani, Tomonobu Tsuchiya, Masahiro Aoki (Hitachi CRL), Masahiko Kondow (Osaka Univ.)
 [more] OPE2006-17 LQE2006-21
pp.11-14
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