Hiroshi HATAKEYAMA


High Speed 1.1-µm-Range InGaAs-Based VCSELs
Naofumi SUZUKI Takayoshi ANAN Hiroshi HATAKEYAMA Kimiyoshi FUKATSU Kenichiro YASHIKI Keiichi TOKUTOME Takeshi AKAGAWA Masayoshi TSUJI 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2009/07/01
Vol. E92-C  No. 7  pp. 942-950
Type of Manuscript:  INVITED PAPER (Special Section on Recent Advances in Ultra-high-speed Photonic Devices for Next-generation Optical Fiber Communications)
Category: 
Keyword: 
vertical-cavity surface-emitting lasers (VCSELs)optical interconnectionssemiconductor laserstunnel junctionhigh-speed modulation
 Summary | Full Text:PDF

Ultrafast Hybrid-Integrated Symmetric Mach-Zehnder All-Optical Switch and Its 168 Gbps Error-Free Demultiplexing Operation
Kazuhito TAJIMA Shigeru NAKAMURA Yoshiyasu UENO Jun'ichi SASAKI Takara SUGIMOTO Tomoaki KATO Tsuyoshi SHIMODA Hiroshi HATAKEYAMA Takemasa TAMANUKI Tatsuya SASAKI 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2000/06/25
Vol. E83-C  No. 6  pp. 959-965
Type of Manuscript:  Special Section PAPER (Special Issue on Advanced Optical Devices for Next Generation High-Speed Communication Systems and Photonic Networks)
Category: High-Speed Optical Devices
Keyword: 
all-optical switchnonlinear opticsoptical communicationultrafastphotonic integration
 Summary | Full Text:PDF

Hybrid Integrated 44 Optical Matrix Switch Module on Silica Based Planar Waveguide Platform
Tomoaki KATO Jun-ichi SASAKI Tsuyoshi SHIMODA Hiroshi HATAKEYAMA Takemasa TAMANUKI Shotaro KITAMURA Masayuki YAMAGUCHI Tatsuya SASAKI Keiro KOMATSU Mitsuhiro KITAMURA Masataka ITOH 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 1999/02/25
Vol. E82-B  No. 2  pp. 357-364
Type of Manuscript:  INVITED PAPER (Joint Special Issue on Photonics in Switching: Systems and Devices)
Category: Photonic Switching Devices
Keyword: 
hybrid photonic integrationsemiconductor optical amplifierplanar lightwave circuitoptical gate switchflip-chip bondingspot-size conversionoptical switchingphotonic ATM switchoptical fiber communicationoptical network
 Summary | Full Text:PDF

Spot-Size-Converter Integrated Semiconductor Optical Amplifiers for Optical Switching Systems
Takemasa TAMANUKI Shotaro KITAMURA Hiroshi HATAKEYAMA Tatsuya SASAKI Masayuki YAMAGUCHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 1999/02/25
Vol. E82-B  No. 2  pp. 431-438
Type of Manuscript:  Special Section PAPER (Joint Special Issue on Photonics in Switching: Systems and Devices)
Category: Assembly and Packaging Technologies
Keyword: 
semiconductor optical amplifierspot-size-converterangled facetselective MOVPEoptical switchoptical gateplanar lightwave circuit
 Summary | Full Text:PDF

Hybrid Integrated 44 Optical Matrix Switch Module on Silica Based Planar Waveguide Platform
Tomoaki KATO Jun-ichi SASAKI Tsuyoshi SHIMODA Hiroshi HATAKEYAMA Takemasa TAMANUKI Shotaro KITAMURA Masayuki YAMAGUCHI Tatsuya SASAKI Keiro KOMATSU Mitsuhiro KITAMURA Masataka ITOH 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 1999/02/25
Vol. E82-C  No. 2  pp. 305-312
Type of Manuscript:  INVITED PAPER (Joint Special Issue on Photonics in Switching: Systems and Devices)
Category: Photonic Switching Devices
Keyword: 
hybrid photonic integrationsemiconductor optical amplifierplanar lightwave circuitoptical gate switchflip-chip bondingspot-size conversionoptical switchingphotonic ATM switchoptical fiber communicationoptical network
 Summary | Full Text:PDF

Spot-Size-Converter Integrated Semiconductor Optical Amplifiers for Optical Switching Systems
Takemasa TAMANUKI Shotaro KITAMURA Hiroshi HATAKEYAMA Tatsuya SASAKI Masayuki YAMAGUCHI 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 1999/02/25
Vol. E82-C  No. 2  pp. 379-386
Type of Manuscript:  Special Section PAPER (Joint Special Issue on Photonics in Switching: Systems and Devices)
Category: Assembly and Packaging Technologies
Keyword: 
semiconductor optical amplifierspot-size-converterangled facetselective MOVPEoptical switchoptical gateplanar lightwave circuit
 Summary | Full Text:PDF