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All Technical Committee Conferences (Searched in: All Years)
| Committee | Date Time | Place | Paper Title / Authors | Abstract | Paper # | |
| OCS, LQE, OPE | 2019-10-18 13:05 |
Kagoshima | Study on wavelength cross connect for SDM photonic nodes based on WSS array modules Kazunori Seno, Akira Isoda, Takayuki Mizuno, Keita Yamaguchi, Kenya Suzuki, Toshikazu Hashimoto, Yutaka Miyamoto (NTT)  OCS2019-44 OPE2019-82 LQE2019-60 |
(Advance abstract in Japanese is available) [more] | OCS2019-44 OPE2019-82 LQE2019-60 pp.87-92 |
|
| OCS, LQE, OPE | 2019-10-18 13:30 |
Kagoshima | A Novel Compact Wavelength Selective Switch with 1-f SPOC and Dispersive Metasurface Grating Shiori Konisho, Mitsumasa Nakajima, Masashi Miyata, Satomi Katayose, Kazunori Seno, Toshikazu Hashimoto (NTT) OCS2019-45 OPE2019-83 LQE2019-61 |
A reconfigurable optical add/drop multiplexing (ROADM) network has attracted attension for the flexible and effective op... [more] | OCS2019-45 OPE2019-83 LQE2019-61 pp.93-97 |
|
| PN | 2019-08-27 11:30 |
Hokkaido | Kanpo-No-Yado Otaru | [Invited Talk]
Low latency optical label switching network and device technologies using fast optical switch Toshikazu Hashimoto, Salah Ibrahim, Yusuke Muranaka, Tatsushi Nakahara, Hiroshi Ishikawa (NTT) PN2019-20 |
[more] | PN2019-20 pp.67-72 |
| OFT, OCS, OPE (Joint) [detail] |
2019-02-15 12:35 |
Fukuoka | 6x6 Wavelength Cross-Connect Employing 4-f Optical System with Low Inter-WSS Crosstalk Kazunori Seno, Keita Yamaguchi, Akira Isoda, Takayuki Mizuno, Kenya Suzuki, Toshikazu Hashimoto, Yutaka Miyamoto (NTT) OCS2018-90 OFT2018-77 OPE2018-206 |
A space division multiplexing (SDM) technology becomes more attractive because it offers large transmission capacity of ... [more] | OCS2018-90 OFT2018-77 OPE2018-206 pp.51-56(OCS), pp.35-40(OFT), pp.67-72(OPE) |
|
| OCS, OPE, LQE | 2018-11-12 16:50 |
Tokyo | Kikai-Shinko-Kaikan Bldg (Tokyo) | [Special Invited Talk]
400-Gbps DMT Transmission Using >100-GHz Analog Multiplexer and InP Mach-Zehnder Modulator Hiroshi Yamazaki, Munehiko Nagatani, Hitoshi Wakita, Yoshihiro Ogiso, Masanori Nakamura, Minoru Ida, Toshikazu Hashimoto, Hideyuki Nosaka, Yutaka Miyamoto (NTT) OCS2018-66 OPE2018-95 LQE2018-84 |
We review our latest experimental results presented at ECOC’18 post-deadline session. Using a >100-GHz analog multiplexe... [more] | OCS2018-66 OPE2018-95 LQE2018-84 p.29 |
| OPE, LQE, OCS | 2018-10-18 11:00 |
Saga | C+L-band wavelength selective switchby alternating arrangement on LCOS Kazunori Seno, Keita Yamaguchi, Satomi Katayose, Kenya Suzuki, Toshikazu Hashimoto (NTT) OCS2018-31 OPE2018-67 LQE2018-56 |
The increase in communications network traffic has led to a demand for higher transmission capacity. To meet this demand... [more] | OCS2018-31 OPE2018-67 LQE2018-56 pp.19-24 |
|
| PN | 2018-04-27 13:20 |
Tokyo | Tokyo Institute of Technology(CIC Tamachi) | [Invited Talk]
Programable Optical Circuit Using Spatial and Planar Optical Circuit (SPOC) Mitsumasa Nakajima, Kenya Suzuki, Keita Yamaguchi, Kazunori Seno, Takashi Goh, Naru Neomoto, Joji Yamaguchi, Mitsunori Fukutoku, Yutaka Miyamoto, Toshikazu Hashimoto (NTT) PN2018-1 |
[more] | PN2018-1 pp.1-8 |
| PN | 2017-03-07 15:25 |
Okinawa | Ohama Nobumoto Memorial Hall (Okinawa) | Multi-channel OSNR monitor integrated with wavelength selective switch using spatial and planar optical circuit Mitsumasa Nakajima (NTT), Kenya Suzuki (NTT DIC), Naru Nemoto (NTT), Keita Yamaguchi (NTT DIC), Joji Yamaguchi, Takashi Goh, Toshikazu Hashimoto (NTT) PN2016-107 |
A spatial planar optical circuit (SPOC) is an attractive optical platform that integrates free space optics with optical... [more] | PN2016-107 pp.135-141 |
| OPE | 2016-12-08 15:45 |
Okinawa | [Invited Talk]
Wavelength selective switching devices for uncoupled SDM network Kenya Suzuki, Keita Yamaguchi, Mitsumasa Nakajima, Takashi Goh, Yuichiro Ikuma, Kota Shikama, Yuzo Ishii, Mikitaka Itoh, Mitsunori Fukutoku, Toshikazu Hashimoto, Yutaka Miyamoto, Kazunori Seno (NTT) OPE2016-106 |
[more] | OPE2016-106 pp.13-18 |
|
| PN | 2016-11-18 14:55 |
Saitama | KDDI Research, Inc. | [Invited Talk]
R&D of Space-Division Multiplexing Photonic Node Yutaka Miyamoto (NTT), Ken-ichi Sato (Nagoya University), Mitsunori Fukutoku (NTT), Takehiro Tsuritani (KDDI Research, Inc.), Toshikazu Hashimoto (NTT), Emmanuel Le Taillandier de Gabory (NEC), Kazuhide Nakajima (NTT), Ryuichi Sugizaki (Furukawa Electric), Ryo Nagase (CIT) PN2016-40 |
This paper introduces the R&D project of Space-Division Multiplexing Photonic Node. The following three key technologies... [more] | PN2016-40 pp.87-92 |
| QIT (2nd) |
2016-05-30 13:00 |
Kochi | Kochi University of Technology Eikokuji campus | [Poster Presentation]
Development of an Universal Linear Optical Circuit Nobuyuki Matsuda, Manabu Oguma, Mikitaka Itoh, Toshikazu Hashimoto (NTT), Jacques Carolan, Christopher Harrold, Chris Sparrow (University of Bristol), Enrique MartinLopez (Nokia Technologies), Nicholas J. Russell, Joshua W. Silverstone (University of Bristol), Peter J. Shadbolt (Imperial College London), Graham D. Marshall, Mark G. Thompson, Jonathan C. F. Matthews, et al. (University of Bristol) |
We have developed an arbitrarily reconfigurable linear optical circuit for the path-encoded quantum state of photons usi... [more] | |
| OFT | 2015-12-11 14:25 |
Tokyo | The University of Electro-Communications (Tokyo) | Identification of loss factors using 1-um-band mode-detection OTDR Atsushi Nakamura, Keiji Okamoto, Yusuke Koshikiya, Tetsuya Manabe, Manabu Oguma, Toshikazu Hashimoto, Mikitaka Itoh (NTT) OFT2015-48 |
Optical fiber cables exposed to long-term severe environmental conditions can cause loss increases due to deterioration.... [more] | OFT2015-48 pp.13-16 |
| OPE, LQE, OCS | 2015-10-29 10:30 |
Oita | Beppu International Convention Center | 100Gbit/s transmitter optical sub-assembly (TOSA) using optical butt-coupling between EADFB laser array and AWG multiplexer Takaharu Ohyama, Yoshiyuki Doi, Wataru Kobayashi, Shigeru Kanazawa, Kiyoto Takahata, Atsushi Kanda, Takeshi Kurosaki, Takuya Tanaka, Tetsuichiro Ohno, Hiroaki Sanjoh, Toshikazu Hashimoto (NTT) OCS2015-44 OPE2015-94 LQE2015-63 |
(Advance abstract in Japanese is available) [more] | OCS2015-44 OPE2015-94 LQE2015-63 pp.17-22 |
| LQE, OPE | 2015-06-19 16:15 |
Tokyo | High-linearity avalanche photodiode and its application for 28Gbaud PAM4 operation Masahiro Nada, Takuya Hoshi, Hirofumi Yamazaki, Haruki Yokoyama, Toshikazu Hashimoto, Hideaki Matsuzaki (NTT) OPE2015-19 LQE2015-29 |
We present a unique configuration of high-speed avalanche photodiode (APD) for ensuring high linearity. The APD exhibits... [more] | OPE2015-19 LQE2015-29 pp.43-46 |
|
| EMD, LQE, OPE, CPM, R | 2014-08-22 14:45 |
Hokkaido | Otaru Economy Center | Compact High-Responsivity Receiver Optical Sub-Assembly for 100-Gb/s Ethernet by Using Arrayed Waveguide Gratings Yoshiyuki Doi, Manabu Oguma, Masayuki Itoh, Toshihide Yoshimatsu, Tetsuichiro Ohno, Toshikazu Hashimoto, Ikuo Ogawa, Eiji Yoshida (NTT) R2014-46 EMD2014-51 CPM2014-66 OPE2014-76 LQE2014-50 |
We developed a compact receiver optical sub-assembly (ROSA) for 100 Gigabit Ethernet (100GbE) for the reach of 10 km. By... [more] | R2014-46 EMD2014-51 CPM2014-66 OPE2014-76 LQE2014-50 pp.115-120 |
| OPE, OFT | 2012-03-02 11:20 |
Tokyo | Simultaneous DPSK dense WDM monitoring using linear optical sampling Tatsuya Okamoto, Fumihiko Ito, Yohei Sakamaki, Toshikazu Hashimoto (NTT) OFT2011-77 OPE2011-203 |
Each channel of WDM signal can be measured using linear optical sampling which measure a total electrical field of WDM s... [more] | OFT2011-77 OPE2011-203 pp.23-26 |
|
| OFT | 2011-01-27 17:15 |
Nagasaki | Rapid Mueller Matrix and PMD Characterization Based on Time-resolved Analysis of Pol-mux Signals Keiji Okamoto, Xinyu Fan, Tatsuya Okamoto, Fumihiko Ito, Yohei Sakamaki, Toshikazu Hashimoto (NTT) OFT2010-56 |
[more] | OFT2010-56 pp.47-50 |
|
| OCS, NS, PN (Joint) |
2010-06-25 09:45 |
Akita | Akita University | Channel-allocation-adaptive WDM Signal Observation Based on Sequential Ultrafast Field Sampling Keiji Okamoto, Fumihiko Ito, Yohei Sakamaki, Toshikazu Hashimoto (NTT Corp.) OCS2010-19 |
This paper describes a novel measurement technology, based on sequential ultrafast field sampling incorporating digital ... [more] | OCS2010-19 pp.49-54 |
| OCS, LQE, OPE | 2008-10-23 16:25 |
Fukuoka | Kyushu Univ. | [Invited Talk]
Report on ECOC2008
-- Waveguide and passive devices -- Toshikazu Hashimoto (NTT) OCS2008-61 OPE2008-104 LQE2008-73 |
This talk describes an overview of the papers presented in ECOC2008 (European Conference on Optical Communication 2008, ... [more] | OCS2008-61 OPE2008-104 LQE2008-73 pp.79-81 |
| OPE, EMT, LQE, PN | 2007-01-30 10:15 |
Osaka | Osaka Univ. Convention Center | Optical waveguide design based on wavefront matching method Yohei Sakamaki, Takashi Saida, Toshikazu Hashimoto, Hiroshi Takahashi (NTT) PN2006-67 OPE2006-149 LQE2006-138 |
We have developed a new optical circuit design method, which we call the wavefront matching (WFM) method. The WFM method... [more] | PN2006-67 OPE2006-149 LQE2006-138 pp.113-118 |
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