Hiromu TOBA


Design Consideration on 43 Gbit/s OTN Line Terminal
Takashi ONO Masahito TOMIZAWA Tomoyoshi KATAOKA Akihiko MATSUURA Yoshiaki KISAKA Yutaka MIYAMOTO Kazushige YONENAGA Shoichiro KUWAHARA Yasuhiko TADA Hiromu TOBA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2002/02/01
Vol. E85-B  No. 2  pp. 423-430
Type of Manuscript:  Special Section PAPER (Special Issue on 40 Gbit/s Optical Transmission Technologies)
Category: 
Keyword: 
OTNmultiple clientsFECGbEperformance monitor
 Summary | Full Text:PDF

FOREWORD
Hiromu TOBA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2002/02/01
Vol. E85-B  No. 2  pp. 363-365
Type of Manuscript:  FOREWORD
Category: 
Keyword: 
 Summary | Full Text:PDF

1 Tbit/s (25 43 Gbit/s) Field Trial Using 43-Gbit/s/ch OTN Interface Prototype
Shoichiro KUWAHARA Kazushige YONENAGA Yutaka MIYAMOTO Yoshiaki KISAKA Kenji SATO Akira HIRANO Takashi ONO Akihiko MATSUURA Masahito TOMIZAWA Tomoyoshi KATAOKA Yasuhiko TADA Hiromu TOBA Kazuo HAGIMOTO Nobuhiro HIRAYAMA Hirotaka ASAI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2002/02/01
Vol. E85-B  No. 2  pp. 470-477
Type of Manuscript:  Special Section PAPER (Special Issue on 40 Gbit/s Optical Transmission Technologies)
Category: 
Keyword: 
OTNmultiple clientsFECInP HEMTUTC-PD
 Summary | Full Text:PDF

High Power Tolerant Optical Duobinary Signal Transmission
Akihiko MATSUURA Kazushige YONENAGA Yutaka MIYAMOTO Akihide SANO Hiromu TOBA Mikio YONEYAMA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2001/05/01
Vol. E84-B  No. 5  pp. 1173-1178
Type of Manuscript:  Special Section PAPER (Joint Special Issue on Recent Progress in Optoelectronics and Communications)
Category: Optical Systems and Technologies
Keyword: 
optical duobinary signalchromatic dispersionSDH
 Summary | Full Text:PDF

High Power Tolerant Optical Duobinary Signal Transmission
Akihiko MATSUURA Kazushige YONENAGA Yutaka MIYAMOTO Akihide SANO Hiromu TOBA Mikio YONEYAMA 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2001/05/01
Vol. E84-C  No. 5  pp. 547-552
Type of Manuscript:  Special Section PAPER (Joint Special Issue on Recent Progress in Optoelectronics and Communications)
Category: Optical Systems and Technologies
Keyword: 
optical duobinary signalchromatic dispersionSDH
 Summary | Full Text:PDF

A 1.55-µm Hybrid Integrated Wavelength-Converter Module Using Spot-Size Converter Integrated Semiconductor Optical Amplifiers on a Planar-Lightwave-Circuit Platform
Rieko SATO Yasuhiro SUZUKI Naoto YOSHIMOTO Ikuo OGAWA Toshikazu HASHIMOTO Toshio ITO Akio SUGITA Yuichi TOHMORI Hiromu TOBA 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 1999/08/25
Vol. E82-C  No. 8  pp. 1487-1493
Type of Manuscript:  Special Section PAPER (Joint Special Issue on Recent Progress in Optoelectronics and Communications)
Category: Optical Active Devices and Modules
Keyword: 
hybrid integrationspot-size converter integrated semiconductor optical amplifierplanar-lightwave-circuit platformwavelength conversiontemperature dependence
 Summary | Full Text:PDF

A 1.3-µm Optical Transceiver Diode (TRAD) Module for TCM Transmission Systems in Optical Access Networks
Yasumasa SUZAKI Masanobu OKAYASU Takeshi KUROSAKI Makoto NAKAMURA Yasuhiro SUZUKI Hideaki KIMURA Hiromu TOBA 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 1999/08/25
Vol. E82-C  No. 8  pp. 1460-1464
Type of Manuscript:  Special Section PAPER (Joint Special Issue on Recent Progress in Optoelectronics and Communications)
Category: Optical Active Devices and Modules
Keyword: 
optical transceiver diode (TRAD)TCM transmission systemtemperature-insensitive responsivitySi bench with V-grove
 Summary | Full Text:PDF

1.3/1.55-µm Full-Duplex WDM Optical Transceiver Modules for ATM-PON (PDS) Systems Using PLC-Hybrid-Integration and CMOS-IC Technologies
Takeshi KUROSAKI Toshikazu HASHIMOTO Noboru ISHIHARA Yasuhiro SUZUKI Masahiro YANAGISAWA Hideaki KIMURA Makoto NAKAMURA Yuichi TOHMORI Kazutoshi KATO Yoshihiro KAWAGUCHI Yuji AKAHORI Yasufumi YAMADA Kuniharu KATO Hiromu TOBA Junichi YOSHIDA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 1999/08/25
Vol. E82-B  No. 8  pp. 1199-1208
Type of Manuscript:  Special Section PAPER (Joint Special Issue on Recent Progress in Optoelectronics and Communications)
Category: Optical Active Devices and Modules
Keyword: 
optical transceiver modulePLChybrid integrationCMOS ICATM PONfull-duplex operation
 Summary | Full Text:PDF

1.3/1.55-µm Full-Duplex WDM Optical Transceiver Modules for ATM-PON (PDS) Systems Using PLC-Hybrid-Integration and CMOS-IC Technologies
Takeshi KUROSAKI Toshikazu HASHIMOTO Noboru ISHIHARA Yasuhiro SUZUKI Masahiro YANAGISAWA Hideaki KIMURA Makoto NAKAMURA Yuichi TOHMORI Kazutoshi KATO Yoshihiro KAWAGUCHI Yuji AKAHORI Yasufumi YAMADA Kuniharu KATO Hiromu TOBA Junichi YOSHIDA 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 1999/08/25
Vol. E82-C  No. 8  pp. 1465-1474
Type of Manuscript:  Special Section PAPER (Joint Special Issue on Recent Progress in Optoelectronics and Communications)
Category: Optical Active Devices and Modules
Keyword: 
optical transceiver modulePLChybrid integrationCMOS ICATM PONfull-duplex operation
 Summary | Full Text:PDF

A 1.3-µm Optical Transceiver Diode (TRAD) Module for TCM Transmission Systems in Optical Access Networks
Yasumasa SUZAKI Masanobu OKAYASU Takeshi KUROSAKI Makoto NAKAMURA Yasuhiro SUZUKI Hideaki KIMURA Hiromu TOBA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 1999/08/25
Vol. E82-B  No. 8  pp. 1194-1198
Type of Manuscript:  Special Section PAPER (Joint Special Issue on Recent Progress in Optoelectronics and Communications)
Category: Optical Active Devices and Modules
Keyword: 
optical transceiver diode (TRAD)TCM transmission systemtemperature-insensitive responsivitySi bench with V-grove
 Summary | Full Text:PDF

A 1.55-µm Hybrid Integrated Wavelength-Converter Module Using Spot-Size Converter Integrated Semiconductor Optical Amplifiers on a Planar-Lightwave-Circuit Platform
Rieko SATO Yasuhiro SUZUKI Naoto YOSHIMOTO Ikuo OGAWA Toshikazu HASHIMOTO Toshio ITO Akio SUGITA Yuichi TOHMORI Hiromu TOBA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 1999/08/25
Vol. E82-B  No. 8  pp. 1221-1227
Type of Manuscript:  Special Section PAPER (Joint Special Issue on Recent Progress in Optoelectronics and Communications)
Category: Optical Active Devices and Modules
Keyword: 
hybrid integrationspot-size converter integrated semiconductor optical amplifierplanar-lightwave-circuit platformwavelength conversiontemperature dependence
 Summary | Full Text:PDF

A 1. 3-µm Optical Transceiver Diode Module Using Passive Alignment Technique on a Si Bench with a V-Groove
Yasumasa SUZAKI Satoru SEKINE Yasuhiro SUZUKI Hiromu TOBA 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 1998/09/25
Vol. E81-C  No. 9  pp. 1508-1510
Type of Manuscript:  LETTER
Category: Opto-Electronics
Keyword: 
optical transceiver diodeV-groove on Si benchpassive alignment technologyTCM transmission systems
 Summary | Full Text:PDF

Optical Frequency Division Multiplexing Systems--Review of Key Technologies and Applications--
Hiromu TOBA Kiyoshi NOSU 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 1992/04/25
Vol. E75-B  No. 4  pp. 243-255
Type of Manuscript:  INVITED PAPER (Special Issue on Advanced Optical Communication Technologies for New Applications)
Category: 
Keyword: 
optical frequency division multiplexing (OFDM)frequency stabilizationoptical amplifiertunable filteradd/drop mux
 Summary | Full Text:PDF

A 1.55-µm Lightwave Frequency Synthesizer
Osamu ISHIDA Hiromu TOBA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 1992/04/25
Vol. E75-B  No. 4  pp. 275-280
Type of Manuscript:  Special Section PAPER (Special Issue on Advanced Optical Communication Technologies for New Applications)
Category: 
Keyword: 
optical communicationslasersfrequency stabilizationHCN
 Summary | Full Text:PDF