Yuichi TOHMORI


Low Driving Voltage 40 Gbit/s n-i-n Mach-Zehnder Modulator Fabricated on InP Substrate
Ken TSUZUKI Tadao ISHIBASHI Hiroshi YASAKA Yuichi TOHMORI 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2005/05/01
Vol. E88-C  No. 5  pp. 960-966
Type of Manuscript:  Special Section PAPER (Joint Special Section on Recent Progress in Optoelectronics and Communications)
Category: Optical Active Devices and Modules
Keyword: 
Mach-ZehndermodulatorInPn-i-nsemiconductor
 Summary | Full Text:PDF(607.4KB)

Novel Methods of Estimating Polarization Dependence in Semiconductor Optical Amplifiers Integrated with Spot-Size Convertors
Toshio ITO Katsuaki MAGARI Yasuo SHIBATA Yoshihiro KAWAGUCHI Yasuhiro KONDO Yuichi TOHMORI Yasuhiro SUZUKI 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2003/05/01
Vol. E86-C  No. 5  pp. 831-837
Type of Manuscript:  PAPER
Category: Lasers, Quantum Electronics
Keyword: 
semiconductor optical amplifierpolarization dependencegain rippleamplified spontaneous emission
 Summary | Full Text:PDF(422.8KB)

Hybrid Integration Technologies Using Planar Lightwave Circuits and Developed Components
Takeshi KITAGAWA Yuji AKAHORI Ikuo OGAWA Yuichi TOHMORI 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2002/04/01
Vol. E85-C  No. 4  pp. 1009-1017
Type of Manuscript:  INVITED PAPER (Special Issue on Recent Progress of Integrated Photonic Devices)
Category: Hybrid and Passive Devices
Keyword: 
optical hybrid integrationplanar lightwave circuitsilica-based optical waveguidesemiconductor optical devices
 Summary | Full Text:PDF(639.3KB)

Wavelength-Tunable Semiconductor Light Sources for WDM Applications
Yuichi TOHMORI Hiroyuki ISHII Hiromi OOHASHI Yuzo YOSHIKUNI 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2002/01/01
Vol. E85-C  No. 1  pp. 21-26
Type of Manuscript:  INVITED PAPER (Special Issue on Recent Progress in Semiconductor Lasers and Light-Emitting Devices)
Category: 
Keyword: 
wavelength-selectable lasersdistributed-feed-back (DFB) lasersdistributed-Bragg-reflector (DBR) laserssuper-structure-grating (SSG)semiconductor optical amplifier (SOA)
 Summary | Full Text:PDF(766.5KB)

Hybrid External Cavity Lasers Composed of Spot-Size Converter Integrated LDs and UV Written Bragg Gratings in a Planar Lightwave Circuit on Si
Takuya TANAKA Hiroshi TAKAHASHI Yoshinori HIBINO Toshikazu HASHIMOTO Akira HIMENO Yasufumi YAMADA Yuichi TOHMORI 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2000/06/25
Vol. E83-C  No. 6  pp. 875-883
Type of Manuscript:  Special Section PAPER (Special Issue on Advanced Optical Devices for Next Generation High-Speed Communication Systems and Photonic Networks)
Category: WDM Network Devices
Keyword: 
external cavity laserhybrid integrationgratingmultiwavelength laserPLC
 Summary | Full Text:PDF(1.3MB)

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(2.3MB)

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(2.3MB)

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(1.7MB)

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(1.7MB)

Spot-size Converter Integrated Laser Diodes (SS-LDs)
Yoshio ITAYA Yuichi TOHMORI Hiroshi OKAMOTO Osamu MITOMI Masato WADA Kenji KAWANO Hideki FUKANO Kiyoyuki YOKOYAMA Yasumasa SUZAKI Minoru OKAMOTO Yasuhiro KONDO Isamu KOTAKA Mitsuo YAMAMOTO Masaki KOHTOKU Yoshiaki KADOTA Kenji KISHI Yoshihisa SAKAI Hiromi OOHASHI Masashi NAKAO 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 1997/01/25
Vol. E80-C  No. 1  pp. 30-40
Type of Manuscript:  Special Section PAPER (Special Issue on Devices, Packaging Technology, and Subsystems for the Optical Access Network)
Category: 
Keyword: 
multi medialow costspot-size converted laserstwo-inch substrate
 Summary | Full Text:PDF(1.2MB)

Multiple-Phase-Shift Super Structure Grating DBR Lasers
Hiroyuki ISHII Yuichi TOHMORI Fumiyoshi KANO Yuzo YOSHIKUNI Yasuhiro KONDO 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 1993/11/25
Vol. E76-C  No. 11  pp. 1683-1690
Type of Manuscript:  PAPER
Category: Opto-Electronics
Keyword: 
semiconductorlaser diodedistributed Bragg reflectorwavelength tuning
 Summary | Full Text:PDF(786.5KB)

1.5-1.6 µm GaInAsP/InP Bundle-Integrated-Guide (BIG) Distributed-Bragg-Reflector (DBR) Lasers
Yuichi TOHMORI Kazuhiro KOMORI Shigehisa ARAI Yasuharu SUEMATSU 
Publication:   IEICE TRANSACTIONS (1976-1990)
Publication Date: 1987/05/25
Vol. E70-E  No. 5  pp. 494-503
Type of Manuscript:  PAPER
Category: Optical and Quantum Electronics
Keyword: 
 Summary | Full Text:PDF(920.8KB)

Direct Modulation Properties of Bundle-Integrated-Guide Dynamic Single Mode (BIG-DSM) Lasers
Linda POSADAS Yuichi TOHMORI Kazuhiro KOMORI Shigehisa ARAI Yasuharu SUEMATSU 
Publication:   IEICE TRANSACTIONS (1976-1990)
Publication Date: 1986/05/25
Vol. E69-E  No. 5  pp. 583-586
Type of Manuscript:  LETTER
Category: Optical and Quantum Electronics
Keyword: 
 Summary | Full Text:PDF(291.8KB)

Reflection Noise Measurement of Dynamic Single Mode Lasers
Hiroshi FUKUI Yasuharu SUEMATSU Kazuhito FURUYA Yuichi TOHMORI Sigehisa ARAI 
Publication:   IEICE TRANSACTIONS (1976-1990)
Publication Date: 1986/03/25
Vol. E69-E  No. 3  pp. 187-189
Type of Manuscript:  LETTER
Category: Optical and Quantum Electronics
Keyword: 
 Summary | Full Text:PDF(219.8KB)

Wavelength Tunable 1.5µm GaInAsP/InP Bundle-Integrated-Guide Distributed Bragg Reflector (BIG-DBR) Lasers
Yuichi TOHMORI Kazuhiro KOMORI Shigehisa ARAI Yasuharu SUEMATSU Hiromi OOHASHI 
Publication:   IEICE TRANSACTIONS (1976-1990)
Publication Date: 1985/12/25
Vol. E68-E  No. 12  pp. 788-790
Type of Manuscript:  LETTER
Category: Optical and Quantum Electronics
Keyword: 
 Summary | Full Text:PDF(185.2KB)

OMVPE Grown GaInAsP/InP BH Laser on p-Type Substrate
Yasuyuki MIYAMOTO Chiaki WATANABE Masashi NAGASHIMA Kazuhito FURUYA Yasuharu SUEMATSU Yuichi TOHMORI Shigehisa ARAI 
Publication:   IEICE TRANSACTIONS (1976-1990)
Publication Date: 1985/12/25
Vol. E68-E  No. 12  pp. 796-797
Type of Manuscript:  LETTER
Category: Optical and Quantum Electronics
Keyword: 
 Summary | Full Text:PDF(151KB)

Bundle-Integrated-Guide (BIG) DBR Type Dynamic-Single-Mode Laser with Short Active Region
Kazuhiro KOMORI Yuichi TOHMORI Shigehisa ARAI Yasuharu SUEMATSU 
Publication:   IEICE TRANSACTIONS (1976-1990)
Publication Date: 1985/11/25
Vol. E68-E  No. 11  pp. 742-744
Type of Manuscript:  LETTER
Category: Optical and Quantum Electronics
Keyword: 
 Summary | Full Text:PDF(208.9KB)