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 Conference Papers (Available on Advance Programs)  (Sort by: Date Descending)
 Results 1 - 20 of 25  /  [Next]  
Committee Date Time Place Paper Title / Authors Abstract Paper #
OPE, OCS, LQE 2022-10-21
14:35
Ehime
(Primary: On-site, Secondary: Online)
Low energy direct modulation of a 5-um-long active region on Si DBR laser
Erina Kanno, Koji Takeda, Takuro Fujii, Takaaki Kakitsuka, Shinji Matsuo (NTT) OCS2022-36 OPE2022-82 LQE2022-45
In order to introduce optical interconnects into short-distance interconnects, ultra-low power consumption lasers are ne... [more] OCS2022-36 OPE2022-82 LQE2022-45
pp.100-103
EMT, MWP, PN, IEE-EMT [detail] 2021-01-21
13:50
Online Online [Invited Talk] Ultralow power consumption membrane lasers and photonic-crystal lasers
Koji Takeda, Shinji Matsuo (NTT) PN2020-35 EMT2020-53 MWP2020-36
Low-power dissipation lasers on Si are needed for short-distance optical interconnects. We review our recent progress on... [more] PN2020-35 EMT2020-53 MWP2020-36
pp.32-36
OCS, OPE, LQE 2018-11-12
17:15
Tokyo Kikai-Shinko-Kaikan Bldg (Tokyo) [Special Invited Talk] Membrane InGaAsP Mach-Zehnder modulator on Si platform
Tatsurou Hiraki, Takuma Aihara, Koji Takeda, Takuro Fujii, Takaaki Kakitsuka, Tai Tsuchizawa, Hiroshi Fukuda, Shinji Matsuo (NTT) OCS2018-67 OPE2018-96 LQE2018-85
(Advance abstract in Japanese is available) [more] OCS2018-67 OPE2018-96 LQE2018-85
pp.31-34
LQE, LSJ 2018-05-25
13:50
Fukui   Monolithic Integration of an 8-channel Directly Modulated Membrane-laser Array and a SiN AWG Filter on Si
Hidetaka Nishi, Takuro Fujii, Nikolaos-Panteleimon Diamantopoulos, Koji Takeda, Erina Kanno, Takaaki Kakitsuka, Tai Tsuchizawa, Hiroshi Fukuda, Shinji Matsuo (NTT) LQE2018-17
 [more] LQE2018-17
pp.29-32
LQE, LSJ 2017-05-26
10:50
Ishikawa   III-V/Si MOS Capacitor Mach-Zehnder Modulator
Tatsurou Hiraki, Takuma Aihara, Koichi Hasebe, Takuro Fujii, Koji Takeda, Takaaki Kakitsuka, Tai Tsuchizawa, Hiroshi Fukuda, Shinji Matsuo (NTT) LQE2017-13
 [more] LQE2017-13
pp.53-56
WPT 2017-03-06
14:00
Kyoto Kyoto Univ. Uji Campus Basic Experiments on WPT System for Solar Power Satellite
Raza Mudassir (sokendai), Koji Tanaka (ISAS), Koji Takeda (Delft University of Technology), Misato Yoneyama (Tokyo University of Science, SUWA) WPT2016-68
A novel measurement technique is proposed for on board calibration of phased array antenna (PAA) by using near field rot... [more] WPT2016-68
pp.15-18
LQE, OPE, EMD, R, CPM 2016-08-25
09:20
Hokkaido   Continuous-wave Operation of Ultra-short Cavity Membrane Lasers on Si Substrates
Erina Kanno, Koji Takeda, Takuro Fujii, Koichi Hasebe, Hidetaka Nishi, Tsuyoshi Yamamoto, Takaaki Kakitsuka, Shinji Matsuo (NTT) R2016-19 EMD2016-23 CPM2016-32 OPE2016-53 LQE2016-28
It is required to reduce energy consumptions of directly modulated semiconductor lasers to realize very short distance o... [more] R2016-19 EMD2016-23 CPM2016-32 OPE2016-53 LQE2016-28
pp.1-4
WPT 2016-03-07
15:20
Kyoto Kyoto Univ. Uji Campus The evaluation of the influences of antenna deformations and the compensation using phase control for WPT system on the Tethered-SPS
Shotaro Katano (SOKENDAI), Eri Saito (Toyo Univ.), Koji Takeda (TU Delft), Koji Tanaka (JAXA) WPT2015-81
The control technology of microwaves is one of important theme for realization of Tethered-SPS. Especially, the transmit... [more] WPT2015-81
pp.27-32
LQE 2015-12-18
16:35
Tokyo   [Invited Talk] Low threshold lasers for datacom and computercom applications
Shinji Matsuo, Koji Takeda, Takuro Fujii, Hidetaka Nishi, Koichi Hasebe, Takaaki Kakitsuka (NTT) LQE2015-133
 [more] LQE2015-133
pp.41-46
OPE, LQE 2014-12-19
12:05
Tokyo Kikai-Shinko-Kaikan, NTT Atsugi R&D center [Encouragement Talk] InGaAs photodetectors based on photonic crystal waveguide including ultrasmall buried heterostructure
Kengo Nozaki, Shinji Matsuo, Takuro Fujii, Koji Takeda, Eiichi Kuramochi, Masaya Notomi (NTT) OPE2014-145 LQE2014-132
Ultrasmall InGaAs photodetectors based on a photonic crystal waveguide with a buried heterostructure (BH) were demonstra... [more] OPE2014-145 LQE2014-132
pp.31-35
OCS, OPE, LQE 2014-10-30
14:30
Nagasaki Nagasaki Museum of History and Culture All-optical memory by buried-heterostructure high-QL3 photonic crystal nanocavity -- Buried-heterostructure L3 nanocavity all-optical memory operated at2.3 nW bias power --
Eiichi Kuramochi, Kengo Nozaki, Akihiko Shinya, Hideaki Taniyama, Koji Takeda, Tomonari Sato, Shinji Matsuo, Masaya Notomi (NTT) OCS2014-61 OPE2014-105 LQE2014-79
Photonic crystal is a platform technology for ultra-compact and ultra-low-power all-optical memory. Here we report a pho... [more] OCS2014-61 OPE2014-105 LQE2014-79
pp.101-105
OCS, OPE, LQE 2014-10-30
17:45
Nagasaki Nagasaki Museum of History and Culture Fabrication of membrane lasers by epitaxial growth of InP using InP-based active layer film on SiO2/Si substrate
Takuro Fujii, Tomonari Sato, Koji Takeda, Koichi Hasebe, Takaaki Kakitsuka, Shinji Matsuo (NTT) OCS2014-68 OPE2014-112 LQE2014-86
Integration of III-V lasers on a Si substrate is the key to realizing large-scale photonic integrated circuits (PICs) us... [more] OCS2014-68 OPE2014-112 LQE2014-86
pp.135-140
EMD, LQE, OPE, CPM, R 2014-08-21
11:15
Hokkaido Otaru Economy Center Lateral current injection DFB laser on Si/SiO2 substrate
Shinji Matsuo, Takuro Fujii, Koichi Hasebe, Koji Takeda, Tomonari Sato, Takaaki Kakitsuka (NTT) R2014-25 EMD2014-30 CPM2014-45 OPE2014-55 LQE2014-29
Membrane lasers with buried heterostructure are expected to obtain extremely small operating energy because of the enhan... [more] R2014-25 EMD2014-30 CPM2014-45 OPE2014-55 LQE2014-29
pp.13-16
MWP, EMT, PN, LQE, OPE, EST, IEE-EMT [detail] 2014-01-24
17:25
Kyoto Doshisha University InGaAs photodetectors based on photonic crystal waveguide including ultrasmall buried heterostructure
Kengo Nozaki, Shinji Matsuo, Koji Takeda, Tomonari Sato, Takuro Fujii, Eiichi Kuramochi, Masaya Notomi (NTT) PN2013-83 OPE2013-197 LQE2013-183 EST2013-132 MWP2013-103
Ultrasmall InGaAs photodetectors based on a photonic crystal waveguide with a buried heterostructure (BH) were demonstra... [more] PN2013-83 OPE2013-197 LQE2013-183 EST2013-132 MWP2013-103
pp.307-310
OPE, LQE, CPM, EMD, R 2013-08-29
17:20
Hokkaido sun-refre Hakodate Photonic-crystal lasers with current blocking trenches
Koji Takeda, Tomonari Sato, Takaaki Kakitsuka, Akihiko Shinya, Kengo Nozaki, Hideaki Taniyama, Masaya Notomi, Koichi Hasebe, Shinji Matsuo (NTT) R2013-44 EMD2013-50 CPM2013-69 OPE2013-73 LQE2013-43
 [more] R2013-44 EMD2013-50 CPM2013-69 OPE2013-73 LQE2013-43
pp.81-84
LQE, CPM, EMD, OPE, R 2012-08-23
15:40
Miyagi Tohoku Univ. Electrically driven photonic crystal nano cavity laser
Shinji Matsuo, Tomonari Sato, Koji Takeda (NTT) R2012-30 EMD2012-36 CPM2012-61 OPE2012-68 LQE2012-34
Photonic crystal lasers have attracted much attention because of the feasibility of its small energy cost operation. Thu... [more] R2012-30 EMD2012-36 CPM2012-61 OPE2012-68 LQE2012-34
pp.47-50
OPE, EMT, LQE, PN, IEE-EMT [detail] 2011-01-28
09:50
Osaka Osaka Univ. Monolithically Integrated 1x100 Photonic Switch Based on Reconfigurable Phased Arrays and SOAs
Ibrahim Murat Soganci, Takuo Tanemura, Koji Takeda, Masaru Zaitsu, Mitsuru Takenaka, Yoshiaki Nakano (Univ. of Tokyo) PN2010-42 OPE2010-155 LQE2010-140
 [more] PN2010-42 OPE2010-155 LQE2010-140
pp.93-97
OPE, LQE, OCS 2009-10-23
09:45
Fukuoka   Experimental Demonstration of All-Optical Flip-Flop Based on Mach-Zehnder Interferometer Bistable Laser Diode
Koji Takeda, Mitsuru Takenaka, Takuo Tanemura, Masaru Zaitsu, Yoshiaki Nakano (Univ. of Tokyo.) OCS2009-65 OPE2009-131 LQE2009-90
We fabricate and demonstrate all-optical flip-flop operation of novel Mach-Zehnder bistable laser diode. The device is b... [more] OCS2009-65 OPE2009-131 LQE2009-90
pp.121-124
OPE, EMD, CPM, LQE 2009-08-20
10:30
Miyagi   1x16 Optical Phased-Array Semiconductor Packet Switch
Takuo Tanemura, Ibrahim Murat Soganci, Kazuhide Higuchi, Koji Takeda, Yoshiaki Nakano (Univ. of Tokyo) EMD2009-29 CPM2009-53 OPE2009-77 LQE2009-36
Integrated photonic switch fabric with nanosecond reconfiguration time and broad operating bandwidth is of particular in... [more] EMD2009-29 CPM2009-53 OPE2009-77 LQE2009-36
pp.17-20
PN 2009-03-09
11:00
Okinawa Yonaguni Island [Encouragement Talk] Research Progress on Phased-Array Semiconductor Optical Packet Switches
Takuo Tanemura, Ibrahim Murat Soganci, Koji Takeda, Yoshiaki Nakano (Univ. of Tokyo) PN2008-87
 [more] PN2008-87
pp.19-22
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