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All Technical Committee Conferences (Searched in: All Years)
| Committee | Date Time | Place | Paper Title / Authors | Abstract | Paper # | |
| PN | 2022-11-07 14:35 |
Kochi | (Kochi, Online) (Primary: On-site, Secondary: Online) |
[Invited Talk]
Spot size converter having two stories employing anisotropic etching process Hajime Tanaka (SEI), Ryuji Yamabi (SEDI), Takamitsu Kitamura (SEDI/SEI), Hotino Kazuhiko (SEDI), Ishikawa Tsutomu (SEI), Mitsuru Ekawa (SEDI/SEI)  PN2022-25 |
Coherent technology has been widely used from long haul to metro network. InP is a material having unique characteristic... [more] | PN2022-25 pp.22-27 |
| R, LQE, OPE, CPM, EMD | 2020-08-28 13:55 |
Online | Online (Online) | [Invited Talk]
InP-based Waveguide Photodetectors for IMDD/Coherent Transmission Applications Yoshihiro Yoneda, Takuya Okimoto (SEI), Ken Ashizawa, Koji Ebihara, Satoru Okamoto, Kazuhiko Horino (SEDI), Hideki Yagi, Mitsuru Ekawa (SEI) R2020-13 EMD2020-12 CPM2020-5 OPE2020-25 LQE2020-5 |
Optical receivers for 400 Gb/s and beyond optical communication systems have been required modulation speeds higher than... [more] | R2020-13 EMD2020-12 CPM2020-5 OPE2020-25 LQE2020-5 pp.21-24 |
| LQE, OPE, SIPH | 2018-12-06 10:15 |
Tokyo | Keio University (Tokyo) | [Encouragement Talk]
Wide bandwidth and high responsivity of InP-based waveguide photodiodes for over 400 Gbps coherent transmission systems Takuya Okimoto (SEDI), Hideki Yagi (SEI), Ryuji Masuyama, Kenji Sakurai, Yoshifumi Nishimoto, Kazuhiko Horino, Takayuki Watanabe (SEDI), Mitsuru Ekawa (SEI), Yoshihiro Yoneda (SEDI) OPE2018-97 LQE2018-107 SIPH2018-13 |
For high speed coherent transmission system over 400 Gbps, photodetectors for coherent receivers with both the wide band... [more] | OPE2018-97 LQE2018-107 SIPH2018-13 pp.1-5 |
| EMD, LQE, OPE, CPM, R | 2018-08-24 10:50 |
Hokkaido | Otaru Camber of Commerce & Industry (Hokkaido) | Compact and low power consumption mid-IR quantum cascade laser development and gas sensing application Makoto Murata, Hiroyuki Yoshinaga, Masaki Migita, Hiroki Mori, Yukihiro Tsuji, Takashi Kato, Jun-ichi Hashimoto, Mitsuru Ekawa, Yasuhiro Iguchi, Tsukuru Katsuyama (Sumitomo Electric) R2018-27 EMD2018-30 CPM2018-30 OPE2018-57 LQE2018-46 |
Mid-infrared sensing with a quantum cascade laser (QCL) as a light source is expected to offer high sensitivity, short m... [more] | R2018-27 EMD2018-30 CPM2018-30 OPE2018-57 LQE2018-46 pp.53-56 |
| R, EMD, CPM, LQE, OPE | 2017-09-01 15:00 |
Aomori | (Aomori) | Wide Bandwidth and High Responsivity Operation of InP-based Photodetector Monolithically Integrated with 90° Hybrid to Realize Over 400 Gbps Coherent Transmission Systems Takuya Okimoto (SEDI), Hideki Yagi (SEI), Ryuji Masuyama, Kenji Sakurai, Yoshifumi Nishimoto, Kazuhiko Horino, Takayuki Watanabe (SEDI), Mitsuru Ekawa (SEI), Yoshihiro Yoneda (SEDI) R2017-40 EMD2017-34 CPM2017-55 OPE2017-64 LQE2017-37 |
In order to realize over 400 Gbps coherent transmission systems, wide bandwidth and high responsivity operation of integ... [more] | R2017-40 EMD2017-34 CPM2017-55 OPE2017-64 LQE2017-37 pp.73-76 |
| LQE, OPE, EMD, R, CPM | 2016-08-26 13:45 |
Hokkaido | (Hokkaido) | Small Responsivity Imbalance of InP-Based Photodetector Monolithically Integrated with 90°Hybrid for Compact Coherent Receivers Hideki Yagi (SEI), Takuya Okimoto, Ryuji Masuyama, Kenji Sakurai, Yoshifumi Nishimoto (Sumitomo Electric Device Innovations), Takehiko Kikuchi (SEI), Kazuhiko Horino, Takayuki Watanabe (Sumitomo Electric Device Innovations), Mitsuru Ekawa, Masaru Takechi (SEI), Yoshihiro Yoneda (Sumitomo Electric Device Innovations) R2016-40 EMD2016-44 CPM2016-53 OPE2016-74 LQE2016-49 |
Since compact and low power dissipation coherent transceivers for metro-networks involve a miniaturization and low costs... [more] | R2016-40 EMD2016-44 CPM2016-53 OPE2016-74 LQE2016-49 pp.105-108 |
| OPE, LQE | 2016-06-17 15:30 |
Tokyo | (Tokyo) | Mid-infrared quantum cascade laser (QCL) integrated with distributed Bragg reflector (DBR) Jun-ichi Hashimoto, Hiroyuki Yoshinaga, Hiroki Mori, Yukihiro Tsuji, Manabu Shiozaki, Makoto Murata, Mitsuru Ekawa, Yashuhiro Iguchi, Tsukuru Katsuyama (SUMITOMO ELECTRIC) OPE2016-17 LQE2016-27 |
We developed an InP-based FP-QCL integrated with a distributed Bragg reflector (DBR) at the end of the cavity. The DBR c... [more] | OPE2016-17 LQE2016-27 pp.41-46 |
| OPE, LQE | 2014-12-19 15:15 |
Tokyo | Kikai-Shinko-Kaikan, NTT Atsugi R&D center (Tokyo) | Low Power-consumption Distributed Feedback Quantum Cascade Laser (DFB-QCL) at λ=7μm Jun-ichi Hashimoto, Hiroyuki Yoshinaga, Hiroki Mori, Yukihiro Tsuji, Makoto Murata, Mitsuru Ekawa, Toshiyuki Tanahashi, Tsukuru Katsuyama (Sumitomo Electric) OPE2014-147 LQE2014-134 |
We developed a low power-consumption DFB-QCL atλ=7μm used for gas-sensors. For power-consumption reduction, we introduce... [more] | OPE2014-147 LQE2014-134 pp.41-46 |
| LQE, LSJ | 2014-05-22 14:25 |
Fukui | (Fukui) | Simultaneous 43-Gb/s Direct Modulation and 10-km SMF Transmission of 1.3-μm AlGaInAs MQW Distributed-Reflector Laser Arrays at 50℃ Manabu Matsuda, Ayahito Uetake, Takasi Simoyama, Shigekazu Okumura, Kazumasa Takabayashi, Mitsuru Ekawa, Tsuyoshi Yamamoto (Fujitsu Labs.) LQE2014-3 |
43-Gb/s direct modulation of 1.3-μm wavelength AlGaInAs distributed-reflector laser arrays on semi-insulating InP substr... [more] | LQE2014-3 pp.9-13 |
| LQE | 2012-12-13 11:00 |
Tokyo | Kikai-Shinko-Kaikan Bldg. (Tokyo) | Ultra-high-speed direct modulation of AlGaInAs semi-insulating buried-heterostructure distributed-reflector lasers Takasi Simoyama, Manabu Matsuda, Shigekazu Okumura, Ayahito Uetake, Mitsuru Ekawa, Tsuyoshi Yamamoto (Fujitsu Labs.) LQE2012-124 |
AlGaInAs-MQW distributed reflector (DR) laser with semi-insulating buried-heterostructure (SI-BH) has been developed as ... [more] | LQE2012-124 pp.15-18 |
| ED, LQE, CPM | 2012-11-30 15:35 |
Osaka | Osaka City University (Osaka) | Fabrication of radial InP/InAsP quantum wells on InP nanowires for near-infrared optical devices Kenichi Kawaguchi, Yoshiaki Nakata, Mitsuru Ekawa, Tsuyoshi Yamamoto (Fujitsu Lab.), Yasuhiko Arakawa (Univ. of Tokyo) ED2012-88 CPM2012-145 LQE2012-116 |
InP-based nanowire (NW) heterostructures have attracted attentions as a building block for fabricating nano-scale light ... [more] | ED2012-88 CPM2012-145 LQE2012-116 pp.109-112 |
| IA | 2012-02-23 16:25 |
Tokyo | Kikai-Shinko-Kaikan Bldg. (Tokyo) | Ultra-fast LAN-SAN system technologies for ultra-high definition video and their enabling technologies Shu Namiki (AIST), Hiroshi Onaka, Satoshi Ide (Fujitsu), Masahito Tomizawa (NTT), Hiroshi Ishikawa (AIST), Yu Tanaka (Fujitsu), Hiroshi Aruga (Mitsubishi Electric), Mitsuru Ekawa (Fujitsu), Takayuki Kurosu (AIST), Kimiyuki Oyamada (NHK), Yasuhiko Arakawa, Tohru Asami (UTYO) IA2011-70 |
[more] | IA2011-70 pp.29-33 |
| LQE | 2010-12-17 13:10 |
Tokyo | Kikai-Shinko-Kaikan Bldg. (Tokyo) | [Encouragement Talk]
AlGaInAs semi-insulating buried-heterostructure (SI-BH) distributed-reflector (DR) lasers for low-driving-current 40-Gbps direct modulation Ayahito Uetake, Koji Otsubo, Manabu Matsuda (PETRA/Fujitsu/Fujitsu labs.), Shigekazu Okumura (Fujitsu labs.), Mitsuru Ekawa, Tsuyoshi Yamamoto (PETRA/Fujitsu/Fujitsu labs.) LQE2010-120 |
Because of recent significant increase of data traffic, much attention has been paid to high-speed optical transmitters.... [more] | LQE2010-120 pp.27-32 |
| EMD, OPE, LQE, CPM | 2010-08-27 17:20 |
Hokkaido | Chitose Arcadia Plaza (Hokkaido) | Improved performances of 1.3-um InAs/GaAs high-density quantum dot lasers Yu Tanaka (Fujitsu labs./Fujitsu/QD laser/PETRA), Kan Takada, Mitsuru Ishida (NanoQuine, Tokyo univ.), Takeshi Matsumoto, Hai-Zhi Song, Mitsuru Ekawa (Fujitsu Labs), Yoshiaki Nakata (Fujitsu Labs/QD laser), Tsuyoshi Yamamoto (Fujitsu labs/Fujitsu/PETRA), Masaomi Yamaguchi, Kenichi Nishi, Mitsuru Sugawara (QD laser), Yasuhiko Arakawa (IIS, Tokyo univ.) EMD2010-60 CPM2010-76 OPE2010-85 LQE2010-58 |
[more] | EMD2010-60 CPM2010-76 OPE2010-85 LQE2010-58 pp.157-162 |
| OPE, EMT, LQE, PN, IEE-EMT | 2010-01-29 16:15 |
Kyoto | (Kyoto) | High power, large-dynamic-range output level control with heater-mounted SOA Shinsuke Tanaka, Ayahito Uetake, Susumu Yamazaki, Mitsuru Ekawa, Ken Morito (Fujitsu Labs.) PN2009-63 OPE2009-201 LQE2009-183 |
A semiconductor optical amplifier (SOA) is very promising as a compact amplifier used in photonic networks. However, in ... [more] | PN2009-63 OPE2009-201 LQE2009-183 pp.149-154 |
| LQE | 2009-12-11 14:40 |
Tokyo | Kikai-Shinko-Kaikan Bldg. (Tokyo) | AlGaInAs semi-insulating buried-heterostructure (SI-BH) distributed-reflector (DR) lasers for low-driving-current 40-Gbps direct modulation Ayahito Uetake, Koji Otsubo, Manabu Matsuda (OITDA/Fujitsu/Fujitsu Laboratories), Shigekazu Okumura (Fujitsu Laboratories), Mitsuru Ekawa, Tsuyoshi Yamamoto (OITDA/Fujitsu/Fujitsu Laboratories) LQE2009-148 |
Because of recent significant increase of data traffic, much attention has been paid to high-speed optical transmitters.... [more] | LQE2009-148 pp.51-56 |
| LQE, OPE | 2009-06-19 17:10 |
Tokyo | Kikai-Shinko-Kaikan Bldg. (Tokyo) | 1.3 um InAs/GaAs quantum dot lasers
-- Toward single mode lasing and high speed modulatoin -- Yu Tanaka (Fujitsu Labs/Fujitsu Ltd/QDL/OITDA), Kan Takada, Mitsuru Ishida (Univ. of Tokyo.), Yasunari Maeda (QD laser inc.), Takeshi Matsumoto, Mitsuru Ekawa, Hai-Zhi Song (Futjitsu Labs.), Masaomi Yamaguchi (QD laser inc.), Yoshiaki Nakata (Fujitsu Labs/QDL.), Kenichi Nishi (QD laser inc.), Tsuyoshi Yamamoto (Fujitsu Labs/Fujitsu Ltd/OITDA), Mitsuru Sugawara (Fujitsu Labs/Fujitsu Ltd/QDL/OITDA), Yasuhiko Arakawa (Univ. of Tokyo.) OPE2009-29 LQE2009-32 |
[more] | OPE2009-29 LQE2009-32 pp.67-72 |
| LQE | 2008-12-12 16:00 |
Tokyo | Kikai-Shinko-Kaikan Bldg. (Tokyo) | High Speed Direct Modulation of 1.3-μm AlGaInAs Multiple-Quantum-Well DFB Lasers with Semi-Insulating Current-Blocking Layers Koji Otsubo, Manabu Matsuda, Kan Takada, Shigekazu Okumura, Mitsuru Ekawa (Fujitsu Labs. Ltd.), Hiromasa Tanaka (Fujitsu Ltd.), Satoshi Ide (Fujitsu Labs. Ltd.), Kazuyuki Mori (Fujitsu Ltd.), Tsuyoshi Yamamoto (Fujitsu Labs. Ltd.) LQE2008-140 |
[more] | LQE2008-140 pp.63-68 |
| LQE | 2007-12-07 10:30 |
Tokyo | Kikai-Shinko-Kaikan Bldg. (Tokyo) | High-Power 10-Gb/s Semi-Cooled Operation of AlGaInAs Electroabsorption Modulator Integrated λ/4-Shifted DFB Laser Kan Takada, Suguru Akiyama, Manabu Matsuda, Shigekazu Okumura, Mitsuru Ekawa, Tsuyoshi Yamamoto (Fujitsu Lab.) LQE2007-114 |
High-power 10-Gb/s semi-cooled operation was attained for AlGaInAs electroabsorption modulator integrated AlGaInAs $\lam... [more] | LQE2007-114 pp.7-10 |
| LQE, OPE, OCS | 2007-11-01 16:40 |
Fukuoka | (Fukuoka) | Wavelength tunable EML using TDA-DFB laser Shigeaki Sekiguchi, Kazumasa Takabayashi, Akinori Hayakawa, Shuichi Tomabechi, Ayahito Uetake, Mitsuru Ekawa, Haruhiko Kuwatsuka (Fujitsu Labs.) OCS2007-53 OPE2007-108 LQE2007-94 |
In this work, we report on a compact wavelength-tunable transmitter based on a tunable distributed amplification DFB (TD... [more] | OCS2007-53 OPE2007-108 LQE2007-94 pp.61-64 |
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