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All Technical Committee Conferences  (Searched in: Recent 10 Years)

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 Conference Papers (Available on Advance Programs)  (Sort by: Date Descending)
 Results 1 - 12 of 12  /   
Committee Date Time Place Paper Title / Authors Abstract Paper #
ED, MWPTHz 2024-12-20
14:20
Miyagi RIEC, Tohoku Univ. (Miyagi, Online)
(Primary: On-site, Secondary: Online)
Ultra-broadband photodetector for multi-band signal detection from microwave to THz-wave
Toshimasa Umezawa, Shinya Nakajima, Atsushi Matsumoto, Kouichi Akahane, Naokatsu Yamamoto (NICT) ED2024-65 MWPTHz2024-77
 [more] ED2024-65 MWPTHz2024-77
pp.42-45
EMT, PN, MWPTHz, IEE-EMT [detail] 2024-01-23
12:50
Kyoto Kyoto Univ. Yoshida Campus (Kyoto) Multiple-Parallel Interference Optical Modulators Based on Multi-Branched MMI Optical Couplers
Shotaro Yasumori, Keita Morimoto, Tadashi Kawai, Akira Enokihara (Univ. of Hyogo), Shinya Nakajima, Kouichi Akahane (NICT) PN2023-61 EMT2023-101 MWPTHz2023-89
Multiple-parallel interference optical modulators, where multiple phase-modulated lightwaves are directly interfered wit... [more] PN2023-61 EMT2023-101 MWPTHz2023-89
pp.74-77
EMT, PN, MWPTHz, IEE-EMT [detail] 2024-01-23
13:15
Kyoto Kyoto Univ. Yoshida Campus (Kyoto) Tolerance on Velocity Mismatch in Traveling-Wave Modulator Integrated with Electro-Optic Frequency-Domain Equalizer
Yuya Yamaguchi, Pham Tien Dat, Kouichi Akahane, Naokatsu Yamamoto (NICT), Atsushi Kanno (Nitech), Tetsuya Kawanishi (Waseda Univ.) PN2023-62 EMT2023-102 MWPTHz2023-90
 [more] PN2023-62 EMT2023-102 MWPTHz2023-90
pp.78-81
EMD, R, LQE, OPE, CPM 2022-08-26
14:00
Chiba   (Chiba, Online)
(Primary: On-site, Secondary: Online)
[Invited Talk] High performance photonic devices for massive integration
Kouichi Akahane, Atsushi Matsumoto, Toshimasa Umezawa, Naokatsu Yamamoto, Atsushi Kanno (NICT) R2022-27 EMD2022-15 CPM2022-32 OPE2022-58 LQE2022-21
 [more] R2022-27 EMD2022-15 CPM2022-32 OPE2022-58 LQE2022-21
pp.58-61
LQE, LSJ 2017-05-26
15:00
Ishikawa (Ishikawa) Extreme Thermal Stability of 1550 nm Band Highly Stacked QD-LDs with p-Doped Structure
Atsushi Matsumoto, Kouichi Akahane, Toshimasa Umezawa, Naokatsu Yamamoto (NICT) LQE2017-19
In this paper, we fabricated 1.55-μm band p-doped broad-area (BA) and ridge structured 30-layer stacked quantum-dot (QD)... [more] LQE2017-19
pp.79-84
OPE, LQE 2016-06-17
13:40
Tokyo (Tokyo) Change of the frequency separation for 2 mode lasers by using the birefringent etalon filter
Masaki Inui (Aoyama Gakuin Univ), Kouichi Akahane, Atsusi Kanno, Naokatsu Yamamoto, Tetsuya Kawanisi (NICT), Hideyuki Sotobayasi (Aoyama Gakuin Univ) OPE2016-13 LQE2016-23
Recently, the application of millimeter and terahertz waves to high speed wireless communication and sensing field attra... [more] OPE2016-13 LQE2016-23
pp.21-24
LQE, LSJ 2016-05-19
16:00
Fukui (Fukui) Research on quantum dot optical gain modulator integrated with semiconductor optical amplifier
Toshifumi Emori (NICT/TDU), Naokatsu Yamamoto, Kouichi Akahane, Toshimasa Umezawa, Atsushi Matsumoto, Tetsuya Kawanishi (NICT), Katsuki watanabe (NICT/TDU), Hiroshi Takai (TDU) LQE2016-5
(To be available after the conference date) [more] LQE2016-5
pp.21-24
LQE, EST, OPE, EMT, PN, MWP, IEE-EMT, PEM [detail] 2016-01-28
14:45
Hyogo (Hyogo) OOK bias free operational 107 Gbaud high speed UTC-PD module
Toshimasa Umezawa, Atsushi Kanno, Kouichi Akahane, Atsushi Matsumoto, Naokatsu Yamamoto (NICT), Tetsuya Kawanishi (Waseda) PN2015-69 EMT2015-120 OPE2015-182 LQE2015-169 EST2015-126 MWP2015-95
 [more] PN2015-69 EMT2015-120 OPE2015-182 LQE2015-169 EST2015-126 MWP2015-95
pp.217-220
QIT
(2nd)
2015-11-24
13:40
Kanagawa NTT Atsugi R&D center (Kanagawa) [Poster Presentation] Theoretical Analysis of the Coherent Dynamics in an Inhomogeneous V-type 3-Level System of Quantum Dots
Sayaka Kitazawa (Keio Univ.), Kouichi Akahane (NICT), Shota Ichikawa, Yuto Arai, Junko Ishi-Hayase (Keio Univ.)
 [more]
OPE, LQE, OCS 2015-10-30
11:15
Oita Beppu International Convention Center (Oita) Characteristics of highly stacked InAs quantum-dot laser grown on vicinal (001)InP substrate
Kouichi Akahane, Toshimasa Umezawa, Atsushi Matsumoto, Naokatsu Yamamoto (NICT) OCS2015-73 OPE2015-123 LQE2015-92
We fabricated broad-area laser diodes consisting of 30-layer stacks of InAs quantum dots by using a strain-compensation ... [more] OCS2015-73 OPE2015-123 LQE2015-92
pp.159-162
CPM, OPE, LQE, R, EMD 2015-08-28
14:50
Aomori Aomori-Bussankan-Asupamu (Aomori) Development of broadband QD ridge-waveguide laser diode in 1.1μm
Katsumi Yoshizawa, Yoshinori Sawado (PioneerMTC), Kouichi Akahane, Naokatsu Yamamoto (NICT) R2015-46 EMD2015-54 CPM2015-70 OPE2015-85 LQE2015-54
To develop a new optical frequency resource for the optical communications, we focused on T-Band (1000-1260nm) and the O... [more] R2015-46 EMD2015-54 CPM2015-70 OPE2015-85 LQE2015-54
pp.115-118
LQE, OPE 2015-06-19
13:00
Tokyo (Tokyo) 1550nm-Band Highly-Stacked QD Intermixing with Ar Implantation for Photonic Integrated Devices
Atsushi Matsumoto (NICT), Yuki Takei (Waseda Univ.), Kouichi Akahane, Naokatsu Yamamoto, Tetsuya Kawanishi (NICT), Hiroshi Ishikawa, Yuichi Matsushima, Katsuyuki Utaka (Waseda Univ.) OPE2015-12 LQE2015-22
In order to realize the monolithic optical integrated devices with using highly stacked semiconductor quantum dots struc... [more] OPE2015-12 LQE2015-22
pp.9-13
 Results 1 - 12 of 12  /   
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