Research Institute
-
2020-2022
理工学術院総合研究所 兼任研究員
Details of a Researcher
Updated on 2022/05/17
理工学術院総合研究所 兼任研究員
Hokkaido University Graduate School, Division of Engineering Applied Physics
Hokkaido University Faculty of Engineering Applied Physics
Hokkaido University Dr. of Engineering
Waseda University
NTT Labs.
NTT-East Corp.
Nippon Telegraph and Telephon Public Corp
Optical Society of Japan
OSA
IEEE
IEICE
Communication and network engineering
Measurement engineering
Electron device and electronic equipment
Optical fiber, Optical measurement, Fiber optic sensor, optical network, optical device
Mode-coupling distribution in polarization-maintaining fibers
T. Higashi, M. Tsubokawa, Y. Sasaki
Proc. Conference on Lasers and Electro-Optics paper WL3 - paper WL3 1987 [Refereed]
伝搬光の偏光状態に及ぼす振動性外力の影響
T. Higashi, M. Tsubokawa, S. Seikai
Trans. IEICE Japan J70-C 152 - 160 1987 [Refereed]
コヒーレント光伝送における偏波保持ファイバのモード結合の評価法
T. Higashi, M. Tsubokawa, Y. Sasaki, S. Seikai
Trans. IEICE Japan J70-B 1140 - 1148 1987 [Refereed]
コヒーレント光伝送における伝搬信号光の評価法
T. Higashi, M. Tsubokawa, N. Shibata, S. Seikai
Trans. IEICE Japan J70-B 307 - 315 1987 [Refereed]
Evaluation method of mode coupling in polariza¬tion-maintaining fiber for coherent transmission
T. Higashi, M. Tsubokawa, S. Seikai
Electron. & Commun. Jpn J70-B 1140 - 1148 1987 [Refereed]
Birefringence and polarization mode dispersion in a coil of a single-mode fiber
N. Shibata, M. Tsubokawa, M. Ohashi, K. Kitayama, S. Seikai
J. Opt. Soc. Am. A 3 1935 - 1940 1987 [Refereed]
Nondestructive test method for guided-wave devices
M. Tateda, N. Shibata, M. Tsubokawa, M. Kawachi
J. Opt. Soc. Am. A 4 P24 1987 [Refereed]
POLARIZATION CHARACTERISTICS OF A SIDE-TUNNEL FIBER
M TSUBOKAWA, N SHIBATA, T ABE, T HIGASHI, S SEIKAI
ELECTRONICS LETTERS 22 ( 24 ) 1280 - 1281 1986.11 [Refereed]
Authorship:Lead author
LENGTH DEPENDENCE OF LP11 MODE LOSS IN THE QUASI-SINGLE-MODE OPERATING REGION
M TSUBOKAWA, N SHIBATA, M OHASHI, S SEIKAI
OPTICS LETTERS 11 ( 5 ) 327 - 329 1986.05 [Refereed]
Authorship:Lead author
SUPPRESSION OF STIMULATED BRILLOUIN-SCATTERING IN A SINGLE-MODE FIBER BY AN ACOUSTOOPTIC MODULATOR
M TSUBOKAWA, S SEIKAI, T NAKASHIMA, N SHIBATA
ELECTRONICS LETTERS 22 ( 9 ) 473 - 475 1986.04 [Refereed]
Authorship:Lead author
偏光状態制御法と制御効果の評価
T. Higashi, M. Tsubokawa, Y. Negishi
Trans. IEICE Japan J69-B 1003 - 1010 1986 [Refereed]
Degradation of temporal coherence due to chromatic dispersion in a birefringent optical fiber
M. Tsubokawa, N. Shibata, T. Higashi, S. Seikai
Proc. International Conference on Optical Fiber Sensors paper 3.7 - paper 3.7 1986 [Refereed]
Authorship:Lead author
POLARIZATION MODE DISPERSION IN A COIL OF SINGLE-MODE FIBER
N SHIBATA, M TSUBOKAWA, S SEIKAI
OPTICS LETTERS 10 ( 2 ) 92 - 94 1985 [Refereed]
Birefringence properties of a coiled single-mode fiber and its use of in a tuned optical amplifier,
N. Shibata, M. Tsubokawa, M. Ohashi, K. Kitayama
Proc. Conference on Lasers and Electro-Optics THP4 - THP4 1985 [Refereed]
EVALUATION OF POLARIZATION MODE-COUPLING COEFFICIENT FROM MEASUREMENT OF POLARIZATION MODE DISPERSION
M TSUBOKAWA, N SHIBATA, S SEIKAI
JOURNAL OF LIGHTWAVE TECHNOLOGY 3 ( 4 ) 850 - 854 1985 [Refereed]
Authorship:Lead author
CHROMATIC DISPERSION MEASUREMENT OF A SINGLE-MODE FIBER BY IMPROVED OPTICAL HETERODYNE INTERFEROMETRY
M TSUBOKAWA, N SHIBATA, S SEIKAI, T HIGASHI
ELECTRONICS LETTERS 21 ( 18 ) 781 - 783 1985 [Refereed]
Authorship:Lead author
BENDING LOSS MEASUREMENT OF LP11 MODE IN QUASI-SINGLE-MODE OPERATION REGION
N SHIBATA, M TSUBOKAWA, M OHASHI, S SEIKAI
ELECTRONICS LETTERS 21 ( 22 ) 1042 - 1043 1985 [Refereed]
LOSS OF TEMPORAL COHERENCE DUE TO FIBER CHROMATIC DISPERSION
N SHIBATA, M TSUBOKAWA, Y KIMURA, S SEIKAI
ELECTRONICS LETTERS 21 ( 23 ) 1087 - 1088 1985 [Refereed]
DYNAMIC 2-FREQUENCY INTERFEROMETRY FOR SMALL DISPLACEMENT MEASUREMENTS
Y OHTSUKA, M TSUBOKAWA
OPTICS AND LASER TECHNOLOGY 16 ( 1 ) 25 - 29 1984 [Refereed]
A COMPACT FIBRE-OPTIC GYROSCOPE BY USE OF AN OPTICAL BRAGG CELL
Y OHTSUKA, M TSUBOKAWA, M IMAI, K ITOH
JOURNAL OF PHYSICS E-SCIENTIFIC INSTRUMENTS 17 ( 12 ) 1236 - 1239 1984 [Refereed]
MEASUREMENTS OF POLARIZATION MODE DISPERSION BY OPTICAL HETERODYNE-DETECTION
N SHIBATA, M TSUBOKAWA, S SEIKAI
ELECTRONICS LETTERS 20 ( 25-2 ) 1055 - 1057 1984 [Refereed]
Development of fibre-optic gyroscope
M. Tsubokawa, Y. Ohtsuka
The Review of Laser Engineering 11 ( 12 ) 889 - 902 1983 [Invited]
Authorship:Lead author
The coupling dependence of protection operation by applying optical MIMO to SDM ring network
J. Jiang, M. Tsubokawa
ISIPS 2021 Paper23 2021.11
Authorship:Last author
Analysis of Optical SDM Ring Network Protection with MIMO Application
J. Jiang, M. Tsubokawa
IEEE 6th International Conference on Signal and Image Processing (ICSIP) SP182 2021.10 [Refereed]
Authorship:Last author
Analysis of an optical SDM ring network model for applying MIMO processing
Jing Jiang, Makoto Tsubokawa
Optical Fiber Technology 65 102627 - 102627 2021.09 [Refereed]
Authorship:Corresponding author
Characteristics of MCF based Optical SDM MIMO Network with Optical Switches
J. Jiang, M. Tsubokawa
ISIPS2020 Paper7 2020.11
Authorship:Last author
Highly birefringent microfiber with bowtie-cores
W. Feng, M. Tsubokawa
IPSIPS2020 Paper 8 2020.11
Authorship:Last author
High birefringence and polarization-holding ability in nanosized optical fibers with Si bowtie cores
W. Feng, M. Tsubokawa
Optics communications 466 ( 125603 ) 1 2020.07 [Refereed]
Evaluation of optical MIMO transmissions through multicore fiber links with an optical switch
J. Jiang, M. Tsubokawa
Optics Communications 463 ( 125381 ) 1 2020.05 [Refereed]
Ultrasmall light-spot transmission in a silicon-core fiber with a bowtie slot structure
A. Sheng, M. Tsubokawa
Optics Express 26 ( 17 ) 21797 - 21802 2018.08 [Refereed]
A controllable nanosize combiner in T-shaped metal-insulator-metal waveguides
Deqing Kong, Makoto Tsubokawa, Lin Chen
IEICE ELECTRONICS EXPRESS 13 ( 6 ) 1 - 5 2016.03 [Refereed]
Optical fibre probe with lateral interface
Makoto Tsubokawa
Springer Proceedings in Physics 177 3 - 17 2016 [Invited]
Analysis of multicore fibre transmission with space coding scheme
Tsubokawa, Makoto
PHOTOPTICS 2016 - Proceedings of the 4th International Conference on Photonics, Optics and Laser Technology 104 - 108 2016.01 [Refereed]
Authorship:Lead author
Evaluation of slot-to-slot coupling between dielectric slot waveguides and metal-insulator-metal slot waveguides
Deqing Kong, Makoto Tsubokawa
OPTICS EXPRESS 23 ( 15 ) 19082 - 19091 2015.07 [Refereed]
Near-field light probe with an optical slot-waveguide structure
Makoto Tsubokawa, Deqing Kong
OPTICS EXPRESS 23 ( 3 ) 1981 - 1991 2015.02 [Refereed]
Authorship:Lead author
Fibre-optic probe design with side-surface interface
M. Tsubokawa
iProc. the international conference on Photonics, Optics and Laser Technology (PHOTOPTICS), Lisbon 158 - 162 2014.01 [Refereed]
Authorship:Lead author
Reliability Evaluation for Distributed PONs With Ring and Tree Topologies
Makoto Tsubokawa
JOURNAL OF OPTICAL COMMUNICATIONS AND NETWORKING 4 ( 10 ) 790 - 798 2012.10 [Refereed]
Authorship:Lead author
Reliability and Scalability of Access Networks with Ladder Structure
M. Tsubokawa, N. Honda, Y. Azuma
Proc. of the Optical Fiber Communication Conference paper NM2K.5 2012.03 [Refereed]
Authorship:Lead author
Security in Photonic Networks: Threats and Security Enhancement
Ken-Ichi Kitayama, Masahide Sasaki, Soichiro Araki, Makoto Tsubokawa, Akihisa Tomita, Kyo Inoue, Katsuyoshi Harasawa, Yuki Nagasako, Atsushi Takada
JOURNAL OF LIGHTWAVE TECHNOLOGY 29 ( 21 ) 3210 - 3222 2011.11 [Refereed]
Resilient FTTH Architecture With Ladder and Grid Network Structures
Makoto Tsubokawa, Nazuki Honda, Yuji Azuma
JOURNAL OF OPTICAL COMMUNICATIONS AND NETWORKING 3 ( 11 ) 839 - 849 2011.11 [Refereed]
Authorship:Lead author
Single-Mode Photonic Crystal Fiber Design With Ultralarge Effective Area and Low Bending Loss for Ultrahigh-Speed WDM Transmission
Takashi Matsui, Taiji Sakamoto, Kyozo Tsujikawa, Shigeru Tomita, Makoto Tsubokawa
JOURNAL OF LIGHTWAVE TECHNOLOGY 29 ( 4 ) 511 - 515 2011.02 [Refereed]
A Novel Conceptual Model of Secure Photonic Networks
Ken-ichi Kitayama, Masahide Sasaki, Soichiro Araki, Makoto Tsubokawa, Akihisa Tomita, Kyo Inoue, Katsuyoshi Harasawa, Yuki Nagasako, Atsushi Takada
2011 13TH INTERNATIONAL CONFERENCE ON TRANSPARENT OPTICAL NETWORKS (ICTON) 2011 [Refereed]
Fiber Identification Technique Based on Mechanically-Induced Long-Period Grating for Bending-Loss Insensitive Fibers
Takashi Matsui, Kazuhide Nakajima, Kunihiro Toge, Toshio Kurashima, Makoto Tsubokawa
JOURNAL OF LIGHTWAVE TECHNOLOGY 28 ( 24 ) 3556 - 3561 2010.12 [Refereed]
Group velocity dispersion measurement method using sinusoidally phase-modulated continuous wave light based on cyclic nature of optical waveform change by group velocity dispersion
Takashi Yamamoto, Takayoshi Mori, Taiji Sakamoto, Kenji Kurokawa, Shigeru Tomita, Makoto Tsubokawa
APPLIED OPTICS 49 ( 27 ) 5148 - 5156 2010.09 [Refereed]
Suppression of Fiber Fuse Propagation in Hole Assisted Fiber and Photonic Crystal Fiber
Nobutomo Hanzawa, Kenji Kurokawa, Kyozo Tsujikawa, Takashi Matsui, Kazuhide Nakajima, Shigeru Tomita, Makoto Tsubokawa
JOURNAL OF LIGHTWAVE TECHNOLOGY 28 ( 15 ) 2115 - 2120 2010.08 [Refereed]
Channel-allocation-adaptive WDM signal observation based on sequential ultrafast field sampling
Keiji Okamoto, Fumihiko Ito, Makoto Tsubokawa, Yohei Sakamaki, Toshikazu Hashimoto
OPTICS LETTERS 35 ( 9 ) 1410 - 1412 2010.05 [Refereed]
Channel-allocation-adaptive WDM signal observation based on sequential ultrafast field sampling
F. Ito, K. Okamoto, M. Tsubokawa, Y. Sakamaki, T. Hashimoto
Proc. of the European Conference and Exhibition on Optical Communication (ECOC) paper PD2.3 2009.09 [Refereed]
伝送速度と加入率を考慮したWDMアクセスシステムにおける光可変分岐制御方式
島田達也, 桜井尚也, 木村秀明, 雲崎清美, 坪川 信
信学会論文誌B J92-B ( 7 ) 1140 - 1152 2009.07 [Refereed]
Automatic Level Controlled Burst-mode Optical Fiber Amplifier for 10 Gbit/s PON application
Ken-Ichi Suzuki, Youichi Fukada, Naoto Yoshimoto, Kiyomi Kumozaki, Makoto Tsubokawa
OFC: 2009 CONFERENCE ON OPTICAL FIBER COMMUNICATION, VOLS 1-5 paper OThL3 2113 - 2115 2009 [Refereed]
AC-Coupled Burst-Mode Transmitter Using Baseline-Wander Common-Mode-Rejection Technique for 10-Gbit/s-Class PON Systems
Hirotaka Nakamura, Shunji Kimura, Kazutaka Hara, Naoto Yoshimoto, Makoto Tsubokawa, Makoto Nakamura, Kazuyoshi Nishimura, Akira Okada, Yusuke Ohtomo
JOURNAL OF LIGHTWAVE TECHNOLOGY 27 ( 1-4 ) 336 - 342 2009.01 [Refereed]
Ultra High-Speed Automatic Level Controlled Optical Amplifier with Wide Dynamic Range
N. Shiga, Y. Horiuchi, M. Takehana, Y. Tanaka, Y. Oikawa, H. Nagaeda, K-I. Suzuki, Y. Fukuda, N. Yoshimoto, M. Tsubokawa
OFC: 2009 CONFERENCE ON OPTICAL FIBER COMMUNICATION, VOLS 1-5 paper OTuH4 2122 - + 2009 [Refereed]
Automatic Level Controlled Burst-mode Optical Fiber Amplifier for 10 Gbit/s PON application
Ken-Ichi Suzuki, Youichi Fukada, Naoto Yoshimoto, Kiyomi Kumozaki, Makoto Tsubokawa
OFC: 2009 CONFERENCE ON OPTICAL FIBER COMMUNICATION, VOLS 1-5 paper OTuH1 2113 - 2115 2009 [Refereed]
Simultaneous OCDM signal transmission over multiple WDM channels using Mach-Zehnder interferometric selector
M. Yoshino, N. Miki, N. Yoshimoto, M. Tsubokawa
ELECTRONICS LETTERS 44 ( 22 ) 1319 - U43 2008.10 [Refereed]
Demonstration and Performance of Colorless ONU for Coexistence-Type WDM-PON Using a Wavelength-Tunable L-Band DWDM-SFP Transceiver
H. Suzuki, M. Fujiwara, I. Suzuki, N. Yoshimoto, H. Kimura, M. Tsubokawa
IEEE PHOTONICS TECHNOLOGY LETTERS 20 ( 17-20 ) 1603 - 1605 2008.09 [Refereed]
光アクセスネットワークシステム
坪川 信
IEICE 論文誌 91 ( 8 ) 699 - 705 2008.08
Authorship:Lead author
Signal Selector内の四光波混合を利用した低損失光バス型アクセスネットワーク
K. Hara, H. Nakamura, H. Ota, N. Miki, N. Yoshimoto, M. Tsubokawa
Jpn. J. Appl. Phys 47 ( 8 ) 6727 - 6732 2008.08 [Refereed]
Three-level-control EDC technique using simple eye monitor for access networks
H. Nakamura, T. Yoshida, M. Nakamura, A. Kanda, S. Kimura, N. Yoshimoto, M. Tsubokawa
ELECTRONICS LETTERS 44 ( 13 ) 813 - U47 2008.06 [Refereed]
Multi-wavelength optical transmitter based on time-domain modulation of directly modulated wavelength-swept light
T. Taniguchi, N. Sakurai, H. Kimura, M. Tsubokawa
ELECTRONICS LETTERS 44 ( 10 ) 641 - 642 2008.05 [Refereed]
Beat noise mitigation of spectral amplitude coding OCDMA using heterodyne detection
Manabu Yoshino, Shin Kaneko, Tomohiro Taniguchi, Noriki Miki, Kiyomi Kumozaki, Takamasa Imai, Naoto Yoshimoto, Makoto Tsubokawa
Journal of Lightwave Technology 26 ( 8 ) 962 - 970 2008.04 [Refereed]
Burst-Mode Optical Amplifier for Long-Reach 10 Gbit/s PON Application
K. Suzuki, Y. Fukada, T. Nakanishi, N. Yoshimoto, M. Tsubokawa
Proc. of the Optical Fiber Communication Conference (OFC/NFOEC) paper OThL3 2008.02 [Refereed]
A wide range, over 9.6 ns, skew compensation LSI for a flexible optical access system
Yoshihito Sakai, Hideaki Kimura, Yusuke Ohtomo, Makoto Tsubokawa
IEICE ELECTRONICS EXPRESS 5 ( 4 ) 157 - 162 2008.02 [Refereed]
500-ps Response AC-Coupled Burst-Mode Transmitter Using Baseline-Wander Common-Mode-Rejection Technique for 10-Gbit/s-Class PON Systems
H. Nakamura, S. Kimura, K. Hara, N. Yoshimoto, M. Tsubokawa, M. Nakamura, K. Nishimura, A. Okada, Y. Ohtomo
Proc. of the Optical Fiber Communication Conference (OFC/NFOEC) paper PDP26 2008.02 [Refereed]
Precise frequency stabilisation by dithering bias current of directly modulated laser-diodes
M. Fujiwara, H. Suzuki, H. Kimura, M. Tsubokawa
ELECTRONICS LETTERS 44 ( 1 ) 47 - 48 2008.01 [Refereed]
Loss budget of 12.5 GHz-spaced wide-area carrier-distributed WDM-PON considering excess spectral broadening caused by SOA modulation
T. Suzuki, H. Suzuki, M. Fujiwara, H. Nakamura, K. Iwatsuki, H. Kimura, M. Tsubokawa, Y. Shibata, A. Ohki
ELECTRONICS LETTERS 44 ( 3 ) 226 - 227 2008.01 [Refereed]
High spectral efficiency DWDM-PON using an optical homodyne receiver with integral circuits based on digital signal processing
Shin Kaneko, Hiro Suzuki, Noriki Miki, Hideaki Kimura, Makoto Tsubokawa
2008 CONFERENCE ON OPTICAL FIBER COMMUNICATION/NATIONAL FIBER OPTIC ENGINEERS CONFERENCE, VOLS 1-8 paper OTuH7 2370 - 2372 2008 [Refereed]
Gain-clamp light auto level control (GCL-ALC) technique for gain-controllable burst-mode PON amplifying repeater
Youichi Fukada, Takashi Nakanishi, Ken-Ichi Suzuki, Naoto Yoshimoto, Makoto Tsubokawa
2008 CONFERENCE ON OPTICAL FIBER COMMUNICATION/NATIONAL FIBER OPTIC ENGINEERS CONFERENCE, VOLS 1-8 2086 - 2088 2008 [Refereed]
Demonstration of plug-and-play function by automatically controlling tunable DVMM-SFP transceiver for coexistence-type colorless WDM-PONs
Hiro Suzuki, Masamichi Fujiwara, Tetsuya Suzuki, Hideaki Kimura, Makoto Tsubokawa
2008 CONFERENCE ON OPTICAL FIBER COMMUNICATION/NATIONAL FIBER OPTIC ENGINEERS CONFERENCE, VOLS 1-8 paper OTuH1 2352 - 2354 2008 [Refereed]
Chirp frequency synchronized detection for suppression of light interference in optical access networks
Manabu Yoshino, Naoto Yoshimoto, Makoto Tsubokawa
2008 CONFERENCE ON OPTICAL FIBER COMMUNICATION/NATIONAL FIBER OPTIC ENGINEERS CONFERENCE, VOLS 1-8 paper OWB7 2571 - 2573 2008 [Refereed]
A burst-mode 3R receiver for 10-Gbit/s PON systems with high sensitivity, wide dynamic range, and fast response
Susumu Nishihara, Shunji Kimura, Tomoaki Yoshida, Makoto Nakamura, Jun Terada, Kazuyoshi Nishimura, Keiji Kishine, Kazuyoshi Kato, Yusuke Ohtomo, Naoto Yoshimoto, Takamasa Imai, Makoto Tsubokawa
JOURNAL OF LIGHTWAVE TECHNOLOGY 26 ( 1-4 ) 99 - 107 2008.01 [Refereed]
A 1.25/10.3-Gbit/s AC-coupled Dual-rate Burst-mode Receiver without Reset Signals
Kazutaka Hara, Shunji Kimura, Hirotaka Nakamura, Naoto Yoshimoto, Makoto Tsubokawa, Kazuyoshi Nishimura, Makoto Nakamura, Susumu Nishihara
2008 34TH EUROPEAN CONFERENCE ON OPTICAL COMMUNICATION (ECOC) 44 ( 14 ) 869 - 870 2008 [Refereed]
Remote Frequency Stabilization in DWDM-PON Using Supervisory Frame Transfer with Fixed Time Interval
Masamichi Fujiwara, Tetsuya Suzuki, Hiro Suzuki, Takuya Tanaka, Naoki Ooba, Hideaki Kimura, Makoto Tsubokawa
2008 JOINT CONFERENCE OF THE OPTO-ELECTRONICS AND COMMUNICATIONS CONFERENCE AND THE AUSTRALIAN CONFERENCE ON OPTICAL FIBRE TECHNOLOGY, VOLS 1 AND 2 paper ThL-5 428 - + 2008 [Refereed]
Wavelength Resource Scalable Heterodyne Detection Based WDM Access Employing Time-Domain Modulation of Wavelength-Swept Light
Tomohiro Taniguchi, Naoya Sakurai, Hideaki Kimura, Makoto Tsubokawa
2008 34TH EUROPEAN CONFERENCE ON OPTICAL COMMUNICATION (ECOC) paper Tu1.F.4 2008 [Refereed]
First Demonstration of Fast Automatic-Gain-Control (AGC) PDFA for Amplifying Burst-Mode PON Upstream Signal
Youichi Fukada, Ken-Ichi Suzuki, Hirotaka Nakamura, Naoto Yoshimoto, Makoto Tsubokawa
2008 34TH EUROPEAN CONFERENCE ON OPTICAL COMMUNICATION (ECOC) paper We.2.F.4 2008 [Refereed]
Experimental Demonstration of Phase-Matched OCDM Using PLC-LN Multi-Frequency Self-Homodyne Module
Shin Kaneko, Hiro Suzuki, Noriki Miki, Hideaki Kimura, Makoto Tsubokawa, Koichi Takiguchi, Takashi Yamada, Makoto Abe
2008 34TH EUROPEAN CONFERENCE ON OPTICAL COMMUNICATION (ECOC) paper P.6.14 2008 [Refereed]
Burst-mode Optical Amplifier for Signals with Various Burst Lengths from 500 ns to 50 mu s
H. Nagaeda, Y. Horiuchi, Y. Tanaka, N. Shiga, Y. Fukada, K. Suzuki, N. Yoshimoto, M. Tsubokawa
2008 34TH EUROPEAN CONFERENCE ON OPTICAL COMMUNICATION (ECOC) paper P.1.13 2008 [Refereed]
A Multi-wavelength Stabilization Technique Based on a Local Minimum Search Using a Shared Reflective Etalon Filter for Coexistence-type WDM-PON
Tetsuya Suzuki, Hiro Suzuki, Masamichi Fujiwara, Naoto Yoshimoto, Hideaki Kimura, Makoto Tsubokawa
2008 34TH EUROPEAN CONFERENCE ON OPTICAL COMMUNICATION (ECOC) paper Tu1.F.5 2008 [Refereed]
A 1.25/10.3-Gbit/s AC-coupled Dual-rate Burst-mode Receiver without Reset Signals
Kazutaka Hara, Shunji Kimura, Hirotaka Nakamura, Naoto Yoshimoto, Makoto Tsubokawa, Kazuyoshi Nishimura, Makoto Nakamura, Susumu Nishihara
2008 34TH EUROPEAN CONFERENCE ON OPTICAL COMMUNICATION (ECOC) 2008 [Refereed]
Centralized frequency stabilization with wide capture range using MZI-AWG in DWDM-PON
Masamichi Fujiwara, Tetsuya Suzuki, Hiro Suzuki, Takuya Tanaka, Naoki Ooba, Hideaki Kimura, Makoto Tsubokawa
IEEE Photonics Technology Letters 20 ( 19 ) 1612 - 1614 2008 [Refereed]
A Multilevel Transmission Technique Based On Stacked Optical Binary Signals for Upgrading TDM-PON Systems
Noritake Miyoshi, Yoshihito Sakai, Hideaki Kimura, Makoto Tsubokawa
2008 7TH INTERNATIONAL CONFERENCE ON THE OPTICAL INTERNET (COIN) paper C-14-PM2-2 137 - 138 2008 [Refereed]
Multilevel Transmission System Using Multiple LDs and Block Receiving Technique
Takashi Yamada, Noritake Miyoshi, Yoshihito Sakai, Hideaki Kimura, Makoto Tsubokawa
GLOBECOM 2008 - 2008 IEEE GLOBAL TELECOMMUNICATIONS CONFERENCE Sessions 102 2008 [Refereed]
Evolution of Next Generation Access
Makoto Tsubokawa, Kiyomi Kumozaki
GLOBECOM 2008 - 2008 IEEE GLOBAL TELECOMMUNICATIONS CONFERENCE Sessions 202 2008 [Refereed]
Authorship:Lead author
A Novel lambda/Bit Conversion Technique for Highly Efficient Use of Wavelengths in WDM-based Optical Access System
Hideaki Kimura, Takashi Yamada, Makoto Tsubokawa
GLOBECOM 2008 - 2008 IEEE GLOBAL TELECOMMUNICATIONS CONFERENCE ON06W3 2008 [Refereed]
Low Loss Signal Selector using FWM in Highly Nonlinear Optical Fiber for Bus-type Access Networks
K. Hara, N. Ota, H. Nakamura, N. Miki, N. Yoshimoto, M. Tsubokawa
Proc. of the Microoptics Conference (MOC) paper L6 2007.10 [Refereed]
High sensitivity APD burst-mode receiver for 10Gbit/s TDM-PON system
T. Nakanishia, K-I. Suzuki, Y. Fukada, N. Yoshimoto, M. Nakamura, K. Kato, K. Nishimura, Y. Ohtomo, M. Tsubokawa
IEICE ELECTRONICS EXPRESS 4 ( 19 ) 588 - 592 2007.10 [Refereed]
Next and New-Generation FTTH technologies
Proc. of the Optelectronics and Communication Conference (OECC/FON) Workshop 1 65 - 72 2007.07 [Refereed]
Wavelength-tunable DWDM-SFP with a Dithering Signal Monitor and Its Application to Coexistence-type Colorless WDM-PON
H. Suzuki, M. Fujiwara, T. Suzuki, N. Yoshimoto, H. Kimura, M. Tsubokawa
Proceedings of European Conference and Exhibition on Optical Communication (ECOC 2007) paper PD3.4 2007.05 [Refereed]
High Spectral Efficiency OCDM Technique based on Optical OFDM and Multi-frequency Homodyne Detection
S. Kaneko, H. Suzuki, N. Miki, H. Kimura, M. Tsubokawa
Proc. of the European Conference and Exhibition on Optical Communication (ECOC) paper P088 2007.05 [Refereed]
Flexible access technologies to upgrade PONs
M. Tsubokawa
Proc. of the OECC/IOOC paper 10A1-1 2007.05 [Refereed]
Authorship:Lead author
Centralized Frequency Stabilization by Dithering Transmission Spectra of PLC-type MZI-AWG for DWDM-PON
M. Fujiwara, H. Suzuki, T. Tanaka, N. Oba, N. Yoshimoto, M. Tsubokawa
Proc. of the European Conference and Exhibition on Optical Communication (ECOC) paper 7.6.2 2007.05 [Refereed]
Wide dynamic range and high sensitivity APD burst receiver configuration based on M-switching technique for 10GEPON system
Takashi Nakanishi, Youichi Fukada, Ken-ichi Suzuki, Naoto Yoshimoto, Makoto Nakamura, Kazutoshi Kato, Kazuyoshi Nishimura, Yusuke Ohtomo, Makoto Tsubokawa
2007 IEEE LEOS ANNUAL MEETING CONFERENCE PROCEEDINGS, VOLS 1 AND 2 paper ThW5 876 - + 2007 [Refereed]
An optical receiver module with over 9.6nsec deskew range and 10Gb/s FMUX for a flexible optical access system based on PS-WDM-PON
Hideaki Kimura, Yoshihito Sakai, Makoto Tsubokawa
2007 IEEE LEOS ANNUAL MEETING CONFERENCE PROCEEDINGS, VOLS 1 AND 2 paper ThO2 796 - 797 2007 [Refereed]
ホームネットワーク技術の動向(注目を浴びるIEEE1394技術
T. Haibara, M. Tsubokawa, Y. Kurusu
NTT技術ジャーナル 72 - 75 1999.05
An evolutional scenario for home network and basic trial of IEEE 1394 home network
T. Haibara, M. Tsubokawa, T. Sugawa, Y. Kurusu
Proc. ICCE 38 - 39 1999 [Refereed]
Development of optical fiber network Technology for the access network
K. Fuchigami, M. Tsubokawa
Proc. of the Optoelectronics and Communications Conference (OEC) 1994
A CONSIDERATION OF POLARIZATION DISPERSION DETERMINING FROM A STOKES PARAMETER EVALUATION
M TSUBOKAWA, M OHASHI
JOURNAL OF LIGHTWAVE TECHNOLOGY 9 ( 8 ) 948 - 951 1991.08 [Refereed]
Authorship:Lead author
OPTIMUM PARAMETER DESIGN OF ER3+-DOPED FIBER FOR OPTICAL AMPLIFIERS
M OHASHI, M TSUBOKAWA
IEEE PHOTONICS TECHNOLOGY LETTERS 3 ( 2 ) 121 - 123 1991.02 [Refereed]
COHERENCE PROPERTIES OF NARROW-BAND LIGHT AMPLIFIED IN AN ER-3+-DOPED FIBER
M TSUBOKAWA
IOOC-ECOC 91, PTS 1-4 673 - 676 1991 [Refereed]
Authorship:Lead author
WAVE-FORM DEGRADATION DUE TO DISPERSION EFFECTS IN AN OPTICAL CPFSK SYSTEM
M TSUBOKAWA, M OHASHI, Y SASAKI
JOURNAL OF LIGHTWAVE TECHNOLOGY 8 ( 6 ) 962 - 966 1990.06 [Refereed]
Authorship:Lead author
WAVE-FORM DEGRADATION DUE TO DISPERSION EFFECTS IN AN OPTICAL CPFSK SYSTEM
M TSUBOKAWA, M OHASHI, Y SASAKI
JOURNAL OF LIGHTWAVE TECHNOLOGY 8 ( 5 ) 775 - 779 1990.05 [Refereed]
Authorship:Lead author
A CONSIDERATION ON CHROMATIC AND POLARIZATION DISPERSIONS IN SINGLE-MODE FIBERS FOR LARGE CAPACITY TRANSMISSION-SYSTEMS
M OHASHI, M TSUBOKAWA, M KAWASE
GLOBECOM 90 - IEEE GLOBAL TELECOMMUNICATIONS CONFERENCE & EXHIBITION, VOLS 1-3 1523 - 1528 1990 [Refereed]
Polarisation Dispersion in a Long Optical Single-Mode Fibre Cable
M. Tsubokawa, Y. Sasaki
Trans. IEICE Japan E73 519 - 521 1990 [Refereed]
Authorship:Lead author
Novel Interpretation of Polarization Dispersion in a Single-Mode Fiber
M. Tsubokawa, M. Ohashi
Proc. International conference of optical fiber measurements 1990 [Refereed]
Authorship:Lead author
Dispersion estimation of axially nonuniform single-mode fibres
M. Ohashi, N. Kuwaki, M. Tsubokawa
Electron. Lett. E73 1329 - 1331 1990 [Refereed]
MEASUREMENT OF MODE COUPLINGS AND EXTINCTION RATIOS IN POLARIZATION-MAINTAINING FIBERS
M TSUBOKAWA, T HIGASHI, Y SASAKI
JOURNAL OF LIGHTWAVE TECHNOLOGY 7 ( 1 ) 45 - 50 1989.01 [Refereed]
Authorship:Lead author
Coherent FSK transmission experiment using brillouin amplification in a single-mode fiber
Makoto Tsubokawa, Yutaka Sasaki
Journal of Optical Communications 10 ( 2 ) 42 - 47 1989 [Refereed]
Authorship:Lead author
OPTICAL HETERODYNE METHOD FOR EVALUATING THE POWER COUPLING IN THE SINGLE-MODE GUIDED-WAVE MACH-ZEHNDER INTERFEROMETER FABRICATED UPON A SILICON SUBSTRATE
N SHIBATA, M TSUBOKAWA, M TATEDA, M KAWACHI
OPTICS LETTERS 13 ( 7 ) 601 - 602 1988.07 [Refereed]
NONDESTRUCTIVE EVALUATION OF COUPLING-CONSTANTS IN SINGLE-MODE OPTICAL CHANNEL WAVE-GUIDES
M TSUBOKAWA, M TATEDA, N SHIBATA, M KAWACHI
JOURNAL OF LIGHTWAVE TECHNOLOGY 6 ( 7 ) 1209 - 1216 1988.07 [Refereed]
Authorship:Lead author
CROSSTALK CHARACTERISTICS OF A 100 KM-LONG SPLICED POLARIZATION-MAINTAINING OPTICAL FIBER
Y SASAKI, K TAJIMA, M TSUBOKAWA, K SUZUKI
ELECTRONICS LETTERS 24 ( 10 ) 580 - 582 1988.05 [Refereed]
LIMITATION OF TRANSMISSION DISTANCE AND CAPACITY DUE TO POLARIZATION DISPERSION IN A LIGHTWAVE SYSTEM
M TSUBOKAWA, Y SASAKI
ELECTRONICS LETTERS 24 ( 6 ) 350 - 352 1988.03 [Refereed]
Authorship:Lead author
Pulse spreading due to polarization dispersion in single-mode fibers,
M. Tsubokawa, Y. Sasaki
Proc. Conference on Precision Electromagnetic. Measurement 1988 [Refereed]
Authorship:Lead author
Tightness Estimation of Fiber Ribbons in a Slot-Type Singlemode Optical-Fiber Cable
Tetsuya Yamamura, Makoto Tsubokawa, Nori Shibata, Yutaka Katsuyama
Journal of Lightwave Technology 6 ( 12 ) 1815 - 1820 1988 [Refereed]
OTDRにおける偏波雑音低減のための励振用複屈折性光ファイバ
T. Horiguchi, K. Suzuki, M. Tsubokawa
Trans. IEICE Japan E71 218 - 223 1988 [Refereed]
Authorship:Last author
MODE COUPLINGS DUE TO EXTERNAL FORCES DISTRIBUTED ALONG A POLARIZATION-MAINTAINING FIBER - AN EVALUATION
M TSUBOKAWA, T HIGASHI, Y NEGISHI
APPLIED OPTICS 27 ( 1 ) 166 - 173 1988.01 [Refereed]
Authorship:Lead author
LOSS OF LONGITUDINAL COHERENCE AS A RESULT OF THE BIREFRINGENCE EFFECT
M TSUBOKAWA, N SHIBATA, T HIGASHI, S SEIKAI
JOURNAL OF THE OPTICAL SOCIETY OF AMERICA A-OPTICS IMAGE SCIENCE AND VISION 4 ( 10 ) 1895 - 1901 1987.10 [Refereed]
Authorship:Lead author
Loss of longitudinal coherence due to birefringent effect
M. Tsubokawa, T. Higashi, N. Shibata, S. Seikai
J. Opt. Soc. Am. A 4 ( 10 ) 1865 - 1901 1987.10
FIBEROPTIC SENSOR FOR MEASURING EXTERNAL FORCES DISTRIBUTED ALONG A FIBER
M TSUBOKAWA, T HIGASHI, S SEIKAI
JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS & EXPRESS LETTERS 26 ( 5 ) L587 - L589 1987.05 [Refereed]
Authorship:Lead author
LONGITUDINAL COHERENCE PROPERTIES OF LIGHT WAVES PROPAGATING THROUGH A BIREFRINGENT FIBER
M TSUBOKAWA, N SHIBATA, T HIGASHI, S SEIKAI
OPTICS LETTERS 12 ( 5 ) 361 - 363 1987.05 [Refereed]
Authorship:Lead author
TEMPORAL COHERENCE PROPERTIES OF A DISPERSIVELY PROPAGATING BEAM IN A FIBEROPTIC INTERFEROMETER
N SHIBATA, M TSUBOKAWA, T NAKASHIMA, S SEIKAI
JOURNAL OF THE OPTICAL SOCIETY OF AMERICA A-OPTICS IMAGE SCIENCE AND VISION 4 ( 3 ) 494 - 497 1987.03 [Refereed]
Proceedings of the 2nd International Conference on Photonics, Optics and Laser Technology Revised Selected Papers
P.A. Ribeiro, M. Raposo( Part: Other)
Springer Proceedings in Physics 2016 ISBN: 9783319273198
The Distributed Fibre Optic Sensing Handbook
J. P. Dakin( Part: Other)
IFS Publications 1990 ISBN: 354019603X
115 ( 306 ) 9 - 14 2015.11
39 ( 41 ) 31 - 36 2015.11
B-13-8 Study on spatial mode conversion by in-line phase shifting in slab waveguides
Chen Xiangyu, Tsubokawa Makoto
Proceedings of the IEICE General Conference 2013 ( 2 ) 473 - 473 2013.03
B-13-33 Study on optical waveguide structures in side light conditions
TATEYAMA Shinjo, TSUBOKAWA Makoto
Proceedings of the IEICE General Conference 2013 ( 2 ) 498 - 498 2013.03
極微細レーザ描画、加工のための光プローブの研究
Project Year :
Study on fiber-optic receivers with side-surface interfaces
Project Year :
ユビキタス通信の高信頼化に向けたネットワークアーキテクチャに関する研究
Project Year :
Cost Analysis for the Migration/Upgrade of the Senegalese GPON Network Toward NGOA Networks
M. Diop, M. Tsubokawa
IEICE, Technical Report (OFT) IEICE
Presentation date: 2020.10
ナノサイズ光スポット伝送に向けたボウタイスロット構造を有するシリコン光ファイバの提案
盛 愛国, 坪川 信
電子通信学会技術報告 OFT (倉敷) IEICE
Presentation date: 2018.11
空間符号化を用いたマルチコア光ファイバ伝送におけるコア間電力結合抑制の一検討
坪川 信, 王 一州, 劉 安捷
電子通信学会 技術報告 OFT (那覇) IEICE
Presentation date: 2018.02
MIM導波路を用いたT型光結合器の評価と90°光ハイブリッドへの応用
孔德卿, 坪川信, 陳 霖
電子情報通信学会 研究技術報告(OFT) (千歳) IEICE
Presentation date: 2016.08
誘電体スロット導波路とメタルスロット導波路の接続特性の検討
D. Kong, 坪川信
IEICE Tech.Meeting, OFT IEICE
Presentation date: 2015.11
誘電体スロット光導波路を用いたナノ光プローブの検討
電子情報通信学会技術報告、光ファイバ応用技術
Presentation date: 2015.05
側面インターフェースを有する光ファイバプローブの検討
電子情報通信学会技術報告、光ファイバ応用技術
Presentation date: 2014.10
光ファイバにおける側面送受光特性改善の検討
電子情報通信学会技術報告、光ファイバ応用技術
Presentation date: 2013.11
A study on resilient FTTH network architecture
IEICE Technical report, Optical fiber technology, vol. 111, No. 381, p.71, 2012.
Presentation date: 2012.01
FTTH technologies in the NTT Network
M. Tsubokawa [Invited]
the 31th IDATE international conference DigiWorld Summit (Montpellier) IDATE
Presentation date: 2009
新世代アクセスネットワーク,
坪川 信 [Invited]
電子情報通信学会 東京支部シンポジウム 電子情報通信学会 東京支部
Presentation date: 2008.10
Evolution of Optical Access Network Technologies in NTT,
M. Tsubokawa [Invited]
KOiF Optical Internet Workshop (Jeju) KOiF
Presentation date: 2008
Flexible access technologies to upgrade PONs
M. Tsubokawa [Invited]
OECC/IOOC IEICE
Presentation date: 2007
Optical Access Network Deployment in Japan
K. Fuchigami, Y. Wakui, M. Tsubokawa [Invited]
Fiber Optic. Telecom. IBC Tech. Service
Presentation date: 1994
Development of optical fiber network Technology for the access network
K. Fuchigami, M. Tsubokawa [Invited]
OEC IEICE
Presentation date: 1994
空間多重伝送を適用する光リングネットワークアーキテクチャの研究
2021 Jing Jiang
2017
2012
Optical transmission technologies
Graduate School of Information, Production and Systems
2022 spring semester
Fiber optic measurement technology
Graduate School of Information, Production and Systems
2022 fall semester
Advanced fiber optic technologies
Graduate School of Information, Production and Systems
2022 fall semester
Fiber-optic systems Research (Master's Thesis)
Graduate School of Information, Production and Systems
2022 full year
Fiber-optic systems Research (Fall)
Graduate School of Information, Production and Systems
2022 fall semester
Fiber-optic systems Research (Spring)
Graduate School of Information, Production and Systems
2022 spring semester
Fiber-optic systems Research (Doctor's Thesis)
Graduate School of Information, Production and Systems
2022 full year
Fiber-optic systems Research (Fall)
Graduate School of Information, Production and Systems
2022 fall semester
Fiber-optic systems Research (Spring)
Graduate School of Information, Production and Systems
2022 spring semester
Optical fiber engineering
Waseda University
Fiber-optic measurement technology
Waseda University
Optical Transmission Technologies
Waseda University
Physical mathematics
Kitakyushu National College of Technology
Signal processing
Ibaraki University