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 Conference Papers (Available on Advance Programs)  (Sort by: Date Descending)
 Results 1 - 19 of 19  /   
Committee Date Time Place Paper Title / Authors Abstract Paper #
LQE, OPE, CPM, EMD, R 2019-08-23
09:40
Miyagi   [Invited Talk] High Function Semiconductor Lasers for Next Generation Optical Communication Systems
Hiroshi Yasaka, Nobuhide Yokota, Kanno Mitsunari, Sato Shouta (Tohoku Univ.) R2019-29 EMD2019-27 CPM2019-28 OPE2019-56 LQE2019-34
Compact narrow linewidth semiconductor laser source is proposed and demonstrated by utilizing optical negative feedback ... [more] R2019-29 EMD2019-27 CPM2019-28 OPE2019-56 LQE2019-34
pp.47-50
MWP 2019-05-22
14:30
Tokyo Kikai-Shinko-Kaikan Bldg. [Invited Talk] Spin-Controlled Vertical-Cavity Surface-Emitting Lasers for Low-Power and High-Speed Data Communication
Nobuhide Yokota, Kunpei Nisaka (Tohoku Univ.), Kazuhiro Ikeda (AIST), Hiroshi Yasaka (Tohoku Univ.) MWP2019-1
A low-power and high-speed data communication is required to support a development of IoT technologies. For drastically ... [more] MWP2019-1
pp.1-4
OPE, LQE, OCS 2018-10-18
15:25
Saga   Characteristics of Spin Polarization Modulation in VCSELs for High-Speed Operation
Nobuhide Yokota, Kunpei Nisaka (Tohoku Univ.), Kazuhiro Ikeda (AIST), Hiroshi Yasaka (Tohoku Univ.) OCS2018-36 OPE2018-72 LQE2018-61
High-speed vertical-cavity surface-emitting lasers (VCSELs) with low cost and low energy consumption are required to cop... [more] OCS2018-36 OPE2018-72 LQE2018-61
pp.47-50
LQE, LSJ 2018-05-25
13:00
Fukui   Chirp Characteristic of Hybrid Modulation Laser under High Speed Modulation
Mitsunari Kanno, Shigeru Mieda, Nobuhide Yokota (Tohoku Univ.), Hiroyuki Ishii (NTT), Hiroshi Yasaka (Tohoku Univ.) LQE2018-15
 [more] LQE2018-15
pp.21-24
EMT, EST, LQE, MWP, OPE, PEM, PN, IEE-EMT [detail] 2018-01-25
13:00
Hyogo   Coherent optical negative feedback narrow linewidth semiconductor laser integrated with Si ring filter
Konosuke Aoyama, Nobuhide Yokota, Hiroshi Yasaka, Tomohiro Kita (Tohoku Univ.) PN2017-58 EMT2017-95 OPE2017-136 LQE2017-118 EST2017-94 MWP2017-71
To achieve a monolithic coherent optical negative feedback narrow linewidth laser source, we design and fabricate a Si w... [more] PN2017-58 EMT2017-95 OPE2017-136 LQE2017-118 EST2017-94 MWP2017-71
pp.111-114
LQE 2017-12-15
10:10
Tokyo   [Encouragement Talk] Hybrid modulation scheme for modulation characteristics control of distributed feedback laser
Shigeru Mieda, Nobuhide Yokota (Tohoku Univ), Wataru Kobayashi (NTT), Hiroshi Yasaka (Tohoku Univ) LQE2017-85
 [more] LQE2017-85
pp.1-4
OCS, OPE, LQE 2017-10-27
13:55
Kumamoto Josaien, Sakuranobaba Coded Optical Nyquist Pulse Generation Using Modulated Semiconductor Lasers
Nobuhide Yokota, Kazuya Komukai, Hiroshi Yasaka (Tohoku Univ.) OCS2017-54 OPE2017-86 LQE2017-59
Coded optical Nyquist pulse generation using modulated semiconductor lasers and dual-electrode Mach-Zehnder modulator (M... [more] OCS2017-54 OPE2017-86 LQE2017-59
pp.93-96
OPE, EST, LQE, EMT, PN, MWP, IEE-EMT [detail] 2017-01-19
09:30
Mie Iseshi Kanko Bunka Kaikan Effect of birefringence on lasing circular polarization in spin-controlled vertical-cavity surface-emitting lasers
Nobuhide Yokota, Ryutaro Takeuchi, Hiroshi Yasaka (Tohoku Univ.), Kazuhiro Ikeda (AIST) PN2016-63 EMT2016-92 OPE2016-138 LQE2016-127 EST2016-102 MWP2016-76
We investigate circular polarization characteristics in vertical-cavity surface-emitting lasers (VCSELs) with InAlGaAs q... [more] PN2016-63 EMT2016-92 OPE2016-138 LQE2016-127 EST2016-102 MWP2016-76
pp.127-130
OPE, LQE 2016-06-17
14:15
Tokyo   [Invited Talk] Phase noise reduction of single mode semiconductor laser by optical negative feedback
Hiroshi Yasaka, Konosuke Aoyama, Nobuhide Yokota (Tohoku Univ.) OPE2016-14 LQE2016-24
半導体レーザのスペクトル線幅および位相ノイズを低減する手法として光負帰還法を提案し,スペクトル線幅および位相ノイズの低減効果を考察した.本手法は,原理的にはレーザ外部に光周波数弁別器としての光フィルタを設置するのみで構成可能なため,小型な狭... [more] OPE2016-14 LQE2016-24
pp.25-30
OPE, LQE 2016-06-17
15:05
Tokyo   Modulation Characteristics Control of Distributed Feedback Laser with Intra-cavity Loss Modulation
Shigeru Mieda, Nobuhide Yokota (Tohoku Univ.), Wataru Kobayashi (NTT), Hiroshi Yasaka (Tohoku Univ.) OPE2016-16 LQE2016-26
 [more] OPE2016-16 LQE2016-26
pp.35-39
OPE, LQE, OCS 2015-10-30
15:50
Oita Beppu International Convention Center Flat optical frequency comb generated by semiconductor Mach-Zehnder modulator assisted by nonlinear phase modulation
Nobuhide Yokota, Koichiro Abe, Hiroshi Yasaka (Tohoku Univ.) OCS2015-68 OPE2015-118 LQE2015-87
Optical frequency combs generated by an InP-based semiconductor Mach-Zehnder modulator (MZM) is numerically investigated... [more] OCS2015-68 OPE2015-118 LQE2015-87
pp.137-140
CPM, OPE, LQE, R, EMD 2015-08-28
10:00
Aomori Aomori-Bussankan-Asupamu Bandwidth Enhancement of Semiconductor Lasers by Intra-cavity Loss Modulation
Shigeru Mieda, Nobuhide Yokota (Tohoku Univ.), Wataru Kobayashi (NTT), Hiroshi Yasaka (Tohoku Univ.) R2015-38 EMD2015-46 CPM2015-62 OPE2015-77 LQE2015-46
 [more] R2015-38 EMD2015-46 CPM2015-62 OPE2015-77 LQE2015-46
pp.77-80
LQE, LSJ 2015-05-21
13:45
Ishikawa   Ultra-Compact Narrow Linewidth Laser Source with Optical Negative Feedback
Konosuke Aoyama, Shuhei Kobayashi, Nobuhide Yokota, Hiroshi Yasaka (Tohoku Univ.) LQE2015-2
We propose and demonstrate an ultra-compact narrow linewidth laser source by applying a coherent optical negative feedba... [more] LQE2015-2
pp.7-12
OPE, LQE 2014-12-19
15:40
Tokyo Kikai-Shinko-Kaikan, NTT Atsugi R&D center High-speed Operation of Optically Controlled Cross-gain-modulation Laser with External Cavity
Shigeru Mieda, Satoshi Shiratori, Nobuhide Yokota (Tohoku Univ.), Wataru Kobayashi (NTT), Hiroshi Yasaka (Tohoku Univ.) OPE2014-148 LQE2014-135
An optically controlled laser diode with an optical loss and phase controllable external cavity was discussed to achieve... [more] OPE2014-148 LQE2014-135
pp.47-50
MWP 2012-04-06
15:00
Tokyo Kikai-Shinko-Kaikan Bldg. [Invited Talk] InP Optical Modulators
Hiroshi Yasaka (Tohoku Univ.) MWP2012-4
Semiconductor-based optical modulators are particularly promising for applications in photonic network systems owing to ... [more] MWP2012-4
pp.19-24
OCS, LQE, OPE 2008-10-23
09:00
Fukuoka Kyushu Univ. 10-Gbit/s InP n-p-i-n Mach-Zehnder Modulator Monolithically Integrated with SOA
Takako Yasui, Yasuo Shibata, Ken Tsuzuki, Nobuhiro Kikuchi, Masakazu Arai, Yoshihiro Kawaguchi (NTT), Hiroshi Yasaka (Tohoku Univ.) OCS2008-47 OPE2008-90 LQE2008-59
An InP n-p-i-n Mach-Zehnder modulator and a semiconductor optical amplifier were monolithically integrated to compensate... [more] OCS2008-47 OPE2008-90 LQE2008-59
pp.1-6
LQE 2007-12-07
15:45
Tokyo Kikai-Shinko-Kaikan Bldg. Wavelength tunable laser module integrated with InP Mach-Zehnder modulator
Ken Tsuzuki, Nobuhiro Kikuchi, Hiroaki Sanjoh, Yasuo Shibata, Hiroyuki Ishii, Hiroshi Yasaka (NTT) LQE2007-122
We have developed a 10 Gbit/s compact wavelength tunable transmitter by integrating a wavelength tunable DFB laser array... [more] LQE2007-122
pp.47-50
LQE, OPE, OCS 2007-11-01
09:25
Fukuoka   High-speed, long-distance transmission using frequency-modulated SSG-DBR laser and optical filters
Takaaki Kakitsuka, Shinji Matsuo, Toru Segawa, Hiroyuki Suzuki, Naoki Fujiwara, Yasuo Shibata, Hiroshi Yasaka (NTT) OCS2007-40 OPE2007-95 LQE2007-81
The rapid development of the photonic network is driving demand for optical transmitters with high-speed modulation and ... [more] OCS2007-40 OPE2007-95 LQE2007-81
pp.7-10
OCS, OPE, LQE 2005-11-04
13:30
Fukuoka   Low driving voltage, 40-Gbit/s InP-based Mach-Zehnder modulator
Nobuhiro Kikuchi, Ken Tsuzuki, Eiichi Yamada, Yasuo Shibata, Norihide Kashio, Hiroshi Yasaka (NTT), Tadao Ishibashi (NEL)
 [more] OCS2005-65 OPE2005-95 LQE2005-103
pp.41-44
 Results 1 - 19 of 19  /   
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