Katsuhiro SHIMIZU


Wavelength Conversion Characteristics of SOA-MZI Based All-Optical NRZ-OOK/RZ-BPSK Modulation Format Converter
Suresh M. NISSANKA Ken MISHINA Akihiro MARUTA Shunsuke MITANI Kazuyuki ISHIDA Katsuhiro SHIMIZU Tatsuo HATTA Ken-ichi KITAYAMA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2008/07/01
Vol. E91-B  No. 7  pp. 2160-2164
Type of Manuscript:  Special Section PAPER (Joint Special Section on Opto-electronics and Communications toward NGN and beyond)
Category: 
Keyword: 
semiconductor optical amplifiermodulation format converterwavelength converterMach-Zehnder interferometerBinary Phase Shift Keying (BPSK)
 Summary | Full Text:PDF(732.5KB)

Unrepeatered 40 Gbit/s-WDM Transmission Employing Aeff Managed Raman Amplification and CS-RZ Modulation
Katsuhiro SHIMIZU Naoki SUZUKI Kaoru KINJO Kazuyuki ISHIDA Satoshi KAJIYA Takashi MIZUOCHI Kuniaki MOTOSHIMA Yukio KOBAYASHI Kumio KASAHARA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2002/02/01
Vol. E85-B  No. 2  pp. 446-453
Type of Manuscript:  Special Section PAPER (Special Issue on 40 Gbit/s Optical Transmission Technologies)
Category: 
Keyword: 
Raman amplificationunrepeatered transmission40 Gbit/sWDMCS-RZ
 Summary | Full Text:PDF(916KB)

An Experimental Realization of Quantum Cryptosystem
Toshio HASEGAWA Tsuyoshi NISHIOKA Hirokazu ISHIZUKA Jun'ichi ABE Katsuhiro SHIMIZU Mitsuru MATSUI Shigeki TAKEUCHI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2002/01/01
Vol. E85-A  No. 1  pp. 149-157
Type of Manuscript:  Special Section PAPER (Special Section on Cryptography and Information Security)
Category: 
Keyword: 
quantum cryptographykey distributionerror correctionBB84implementation
 Summary | Full Text:PDF(546.1KB)

Adaptive Dispersion Compensation for 40 Gbit/s RZ Transmission by Using Bragg Gratings
Takashi SUGIHARA Kazuyuki ISHIDA Kenkichi SHIMOMURA Katsuhiro SHIMIZU Yukio KOBAYASHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2001/05/01
Vol. E84-B  No. 5  pp. 1153-1158
Type of Manuscript:  Special Section PAPER (Joint Special Issue on Recent Progress in Optoelectronics and Communications)
Category: Optical Systems and Technologies
Keyword: 
fiber gratingadaptive dispersion compensationRZ transmissionclock monitoringtemperature tuning
 Summary | Full Text:PDF(544KB)

Adaptive Dispersion Compensation for 40 Gbit/s RZ Transmission by Using Bragg Gratings
Takashi SUGIHARA Kazuyuki ISHIDA Kenkichi SHIMOMURA Katsuhiro SHIMIZU Yukio KOBAYASHI 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2001/05/01
Vol. E84-C  No. 5  pp. 527-532
Type of Manuscript:  Special Section PAPER (Joint Special Issue on Recent Progress in Optoelectronics and Communications)
Category: Optical Systems and Technologies
Keyword: 
fiber gratingadaptive dispersion compensationRZ transmissionclock monitoringtemperature tuning
 Summary | Full Text:PDF(544.8KB)

Automatic Gain Control of Erbium-Doped Fiber Amplifiers for WDM Transmission Systems
Kuniaki MOTOSHIMA Katsuhiro SHIMIZU Katsumi TAKANO Takashi MIZUOCHI Tadayoshi KITAYAMA Katsuyoshi ITO 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 1997/09/25
Vol. E80-B  No. 9  pp. 1311-1320
Type of Manuscript:  PAPER
Category: Optical Communication
Keyword: 
optical communicationwavelength-divisionmultiplexingerbium-doped fiber amplifierautomatic gain controltransient gain saturation
 Summary | Full Text:PDF(838KB)