Masataka NAKAZAWA


Plug-and-Play Optical Interconnection Using Digital Coherent Technology for Resilient Network Based on Movable and Deployable ICT Resource Unit
Tetsuro KOMUKAI Hirokazu KUBOTA Toshikazu SAKANO Toshihiko HIROOKA Masataka NAKAZAWA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2014/07/01
Vol. E97-B  No. 7  pp. 1334-1341
Type of Manuscript:  Special Section PAPER (Joint Special Section on Opto-electronics and Communications for Future Optical Network)
Category: 
Keyword: 
resilient networkmovable and deployable ICT resource unitoptical interconnectiondigital coherent technologyplug-and play
 Summary | Full Text:PDF(3.5MB)

256 QAM Digital Coherent Optical Transmission Using Raman Amplifiers
Masato YOSHIDA Seiji OKAMOTO Tatsunori OMIYA Keisuke KASAI Masataka NAKAZAWA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2011/02/01
Vol. E94-B  No. 2  pp. 417-424
Type of Manuscript:  Special Section PAPER (Special Section on Extremely Advanced Optical Transmission Technologies and Transmission Optical Fiber Technologies towards Exabit Era)
Category: 
Keyword: 
coherent transmissionquadrature amplitude modulationspectral efficiencyfrequency-stabilized laseroptical phase-locked loop
 Summary | Full Text:PDF(1.4MB)

FOREWORD
Masataka NAKAZAWA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2011/02/01
Vol. E94-B  No. 2  pp. 375-375
Type of Manuscript:  FOREWORD
Category: 
Keyword: 
 Summary | Full Text:PDF(94.8KB)

Single-Channel 1.28 Tbit/s-525 km DQPSK Transmission Using Ultrafast Time-Domain Optical Fourier Transformation and Nonlinear Optical Loop Mirror
Pengyu GUAN Hans Christian Hansen MULVAD Yutaro TOMIYAMA Toshiyuki HIRANO Toshihiko HIROOKA Masataka NAKAZAWA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2011/02/01
Vol. E94-B  No. 2  pp. 430-436
Type of Manuscript:  Special Section PAPER (Special Section on Extremely Advanced Optical Transmission Technologies and Transmission Optical Fiber Technologies towards Exabit Era)
Category: 
Keyword: 
high-speed optical pulse transmissionoptical Fourier transformationultrashort optical pulseoptical phase modulationoptical time-division multiplexingdifferential quadrature phase shift keying
 Summary | Full Text:PDF(2.3MB)

Ultra-Stable Regeneratively Mode-Locked Laser as an Opto-Electronic Microwave Oscillator and Its Application to Optical Metrology
Masataka NAKAZAWA Masato YOSHIDA Toshihiko HIROOKA 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2007/02/01
Vol. E90-C  No. 2  pp. 443-449
Type of Manuscript:  INVITED PAPER (Special Section on Evolution of Microwave and Millimeter-Wave Photonics Technology)
Category: 
Keyword: 
ultrafast lasersmode-locked lasershigh-speed optical transmissionoptical standardsmetrology
 Summary | Full Text:PDF(915KB)

A 40 GHz Regeneratively and Harmonically Mode-Locked Erbium-Doped Fiber Laser and Its Longitudinal-Mode Characteristics
Masato YOSHIDA Taro YAGUCHI Shinji HARADA Masataka NAKAZAWA 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2004/07/01
Vol. E87-C  No. 7  pp. 1166-1172
Type of Manuscript:  Special Section PAPER (Special Section on Ultrafast Photonics)
Category: 
Keyword: 
fiber lasererbium-doped fiber amplifierultrashort optical pulsesmode-lockinglinewidth measurements
 Summary | Full Text:PDF(2.1MB)

Ultrahigh-Speed OTDM Transmission beyond 1 Tera Bit-Per-Second Using a Femtosecond Pulse Train
Masataka NAKAZAWA Takashi YAMAMOTO Koichi Robert TAMURA 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2002/01/01
Vol. E85-C  No. 1  pp. 117-125
Type of Manuscript:  INVITED PAPER (Special Issue on Ultrafast Optical Signal Processing and Its Application)
Category: OTDM Transmission System, Optical Regeneration and Coding
Keyword: 
OTDM transmissionmode-locked lasersfemtosecond pulse generationpulse compressionNOLM
 Summary | Full Text:PDF(877.7KB)

Forced Phase Modulation and Self Phase Modulation Effects in Dispersion-Tuned Mode-Locked Fiber Lasers
Kohichi TAMURA Eiji YOSHIDA Masataka NAKAZAWA 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 1998/02/25
Vol. E81-C  No. 2  pp. 195-200
Type of Manuscript:  Special Section PAPER (Special Issue on Ultrashort Optical Pulse Technologies and their Applications)
Category: 
Keyword: 
fiberlasermode-lockingphase modulation
 Summary | Full Text:PDF(645.7KB)

FOREWORD
Masataka NAKAZAWA 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 1998/02/25
Vol. E81-C  No. 2  pp. 93-94
Type of Manuscript:  FOREWORD
Category: 
Keyword: 
 Summary | Full Text:PDF(160.8KB)

Intracavity Dispersion Effects of a Regeneratively and Harmonically FM Mode-Locked Erbium-Doped Fiber Laser
Eiji YOSHIDA Kohichi TAMURA Masataka NAKAZAWA 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 1998/02/25
Vol. E81-C  No. 2  pp. 189-194
Type of Manuscript:  Special Section PAPER (Special Issue on Ultrashort Optical Pulse Technologies and their Applications)
Category: 
Keyword: 
fiber lasererbium-doped fiberoptical pulsemode-lockingdispersion
 Summary | Full Text:PDF(624.9KB)

Polarization Dependence of Soliton Interactions in Femtosecond Soliton Transmission
Tomoki SUGAWA Kenji KUROKAWA Hirokazu KUBOTA Masataka NAKAZAWA 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 1995/01/25
Vol. E78-C  No. 1  pp. 28-37
Type of Manuscript:  Special Section PAPER (Special Issue on Ultrafast Optoelectronics)
Category: 
Keyword: 
femtosecond pulsesolitonpolarizationsoliton interactionsoliton self-frequency shift
 Summary | Full Text:PDF(691.1KB)

Soliton Transmission Control for Ultra High Speed System
Hirokazu KUBOTA Masataka NAKAZAWA 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 1995/01/25
Vol. E78-C  No. 1  pp. 5-11
Type of Manuscript:  INVITED PAPER (Special Issue on Ultrafast Optoelectronics)
Category: 
Keyword: 
EDFAsynchronous modulationoptical filtering
 Summary | Full Text:PDF(610.6KB)

Ultrahigh Speed Optical Soliton Communication Using Erbium-Doped Fiber Amplifiers
Eiichi YAMADA Kazunori SUZUKI Hirokazu KUBOTA Masataka NAKAZAWA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 1993/04/25
Vol. E76-B  No. 4  pp. 410-419
Type of Manuscript:  Special Section PAPER (Special Issue on Optical Fiber Cables and Related Technologies)
Category: 
Keyword: 
optical solitonEDFAtransmission experimentpower penalty-freesynchronous modulationASE
 Summary | Full Text:PDF(828.4KB)

Recent Progress on Optical Soliton Communication
Hirokazu KUBOTA Masataka NAKAZAWA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1991/06/25
Vol. E74-A  No. 6  pp. 1373-1378
Type of Manuscript:  INVITED PAPER (Special Issue on Nonlinear Theory and Its Applications)
Category: 
Keyword: 
 Summary | Full Text:PDF(483.5KB)

Polarization Mode Properties of an Elliptical Stress-Cladding Fiber
Nori SHIBATA Katsunari OKAMOTO Masataka NAKAZAWA Shigeyuki SEIKAI Masamitsu TOKUDA 
Publication:   IEICE TRANSACTIONS (1976-1990)
Publication Date: 1985/05/25
Vol. E68-E  No. 5  pp. 277-283
Type of Manuscript:  PAPER
Category: Optical and Quantum Electronics
Keyword: 
 Summary | Full Text:PDF(539.9KB)