Koji YAMADA


Optical absorption characteristics and polarization dependence of single-layer graphene on silicon waveguide
Kaori WARABI Rai KOU Shinichi TANABE Tai TSUCHIZAWA Satoru SUZUKI Hiroki HIBINO Hirochika NAKAJIMA Koji YAMADA 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2014/07/01
Vol. E97-C  No. 7  pp. 736-743
Type of Manuscript:  INVITED PAPER (Special Section on Opto-electronics and Communications for Future Optical Network)
Category: 
Keyword: 
graphenesilicon photonicspolarizeroptical absorption
 Summary | Full Text:PDF(14.7MB)

Advances in High-Density Inter-Chip Interconnects with Photonic Wiring
Yutaka URINO Yoshiji NOGUCHI Nobuaki HATORI Masashige ISHIZAKA Tatsuya USUKI Junichi FUJIKATA Koji YAMADA Tsuyoshi HORIKAWA Takahiro NAKAMURA Yasuhiko ARAKAWA 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2013/07/01
Vol. E96-C  No. 7  pp. 958-965
Type of Manuscript:  INVITED PAPER (Special Section on Recent Advances in Integrated Photonic Devices)
Category: 
Keyword: 
integrated opticsintegrated optoelectronicsoptical devicesoptical interconnections
 Summary | Full Text:PDF(6MB)

Phase Demodulation of DPSK Signals Using Dual-Bus Coupled Silicon Micro-Ring Resonator
Rai KOU Sungbong PARK Tai TSUCHIZAWA Hiroshi FUKUDA Hidetaka NISHI Hiroyuki SHINOJIMA Koji YAMADA 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2012/02/01
Vol. E95-C  No. 2  pp. 224-228
Type of Manuscript:  Special Section PAPER (Special Section on Photonic Devices using Nanofabrication Technology and Their Applications)
Category: 
Keyword: 
silicon photonicssilicon micro-ring resonatorphase demodulationdifferential-phase-shift keying (DPSK)
 Summary | Full Text:PDF(3.1MB)

Integration of Silicon Nano-Photonic Devices for Telecommunications
Seiichi ITABASHI Hidetaka NISHI Tai TSUCHIZAWA Toshifumi WATANABE Hiroyuki SHINOJIMA Rai KOU Koji YAMADA 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2012/02/01
Vol. E95-C  No. 2  pp. 199-205
Type of Manuscript:  INVITED PAPER (Special Section on Photonic Devices using Nanofabrication Technology and Their Applications)
Category: 
Keyword: 
siliconphotonicsintegrationnanofabricationtelecommunication
 Summary | Full Text:PDF(4.2MB)

LSI On-Chip Optical Interconnection with Si Nano-Photonics
Junichi FUJIKATA Kenichi NISHI Akiko GOMYO Jun USHIDA Tsutomu ISHI Hiroaki YUKAWA Daisuke OKAMOTO Masafumi NAKADA Takanori SHIMIZU Masao KINOSHITA Koichi NOSE Masayuki MIZUNO Tai TSUCHIZAWA Toshifumi WATANABE Koji YAMADA Seiichi ITABASHI Keishi OHASHI 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2008/02/01
Vol. E91-C  No. 2  pp. 131-137
Type of Manuscript:  INVITED PAPER (Special Section on Silicon Photonics Technologies and Their Applications)
Category: 
Keyword: 
optical interconnectLSISi nano-photonicsSiON waveguideSi nano-photodiodesurface plasmon antennaTIA-less optical clock circuit
 Summary | Full Text:PDF(1.7MB)

Effect of Post-Growth Annealing on Morphology of Ge Mesa Selectively Grown on Si
Sungbong PARK Yasuhiko ISHIKAWA Tai TSUCHIZAWA Toshifumi WATANABE Koji YAMADA Sei-ichi ITABASHI Kazumi WADA 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2008/02/01
Vol. E91-C  No. 2  pp. 181-186
Type of Manuscript:  Special Section PAPER (Special Section on Silicon Photonics Technologies and Their Applications)
Category: 
Keyword: 
Ge-on-Si photodetectorselective epitaxial growthUHV-CVDpost-growth annealingmorphological instability
 Summary | Full Text:PDF(705.9KB)

The Development of a Computational Environment for Cellular Automata
Yuhei AKAMINE Satoshi ENDO Koji YAMADA 
Publication:   IEICE TRANSACTIONS on Information and Systems
Publication Date: 2005/09/01
Vol. E88-D  No. 9  pp. 2105-2112
Type of Manuscript:  PAPER
Category: Automata and Formal Language Theory
Keyword: 
cellular automatasimulatorcomplex systems
 Summary | Full Text:PDF(794KB)

Photonic-Band-Gap Waveguides and Resonators in SOI Photonic Crystal Slabs
Masaya NOTOMI Akihiko SHINYA Eiichi KURAMOCHI Satoshi MITSUGI Han-Youl RYU Tatsuro KAWABATA Tai TSUCHIZAWA Toshifumi WATANABE Tetsufumi SHOJI Koji YAMADA 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2004/03/01
Vol. E87-C  No. 3  pp. 398-408
Type of Manuscript:  Special Section PAPER (Special Section on Photonic Crystals and Their Device Applications)
Category: 
Keyword: 
photonic crystalphotonic band gapwaveguideresonatorSOI
 Summary | Full Text:PDF(2.3MB)

Microphotonics Devices Based on Silicon Wire Waveguiding System
Koji YAMADA Tai TSUCHIZAWA Toshifumi WATANABE Jun-ichi TAKAHASHI Emi TAMECHIKA Mitsutoshi TAKAHASHI Shingo UCHIYAMA Hiroshi FUKUDA Tetsufumi SHOJI Sei-ichi ITABASHI Hirofumi MORITA 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2004/03/01
Vol. E87-C  No. 3  pp. 351-358
Type of Manuscript:  INVITED PAPER (Special Section on Photonic Crystals and Their Device Applications)
Category: 
Keyword: 
integrated optical circuitsilicon wire waveguidesilicon-on-insulatormode field size converteradiabatic tapermultimode interference devicephotonic crystallattice filter
 Summary | Full Text:PDF(800.6KB)

Si-Based Photonic Crystals and Photonic-Bandgap Waveguides
Masaya NOTOMI Akihiko SHINYA Eiichi KURAMOCHI Itaru YOKOHAMA Chiharu TAKAHASHI Koji YAMADA Jun-ichi TAKAHASHI Takayuki KAWASHIMA Shojiro KAWAKAMI 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2002/04/01
Vol. E85-C  No. 4  pp. 1025-1032
Type of Manuscript:  INVITED PAPER (Special Issue on Recent Progress of Integrated Photonic Devices)
Category: New Devices
Keyword: 
photonic crystalphotonic band gapwaveguidephotonic ICSi photonics
 Summary | Full Text:PDF(2.5MB)

Double-Pass EA Modulator Array Monolithically Integrated with Passive-Waveguide
Koji YAMADA Koji NAKAMURA Hideaki HORIKAWA 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 1998/08/25
Vol. E81-C  No. 8  pp. 1245-1250
Type of Manuscript:  Special Section PAPER (Special Issue on High-Capacity WDM/TDM Networks)
Category: 
Keyword: 
electroabsorption modulatorarrayreflection
 Summary | Full Text:PDF(541.4KB)

Polarization Insensitive Electroabsorption Modulators for High-Speed Optical Gating
Koji YAMADA Koji NAKAMURA Hitoshi MURAI Tatsuo KUNII Yoh OGAWA 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 1997/01/25
Vol. E80-C  No. 1  pp. 62-68
Type of Manuscript:  Special Section PAPER (Special Issue on Devices, Packaging Technology, and Subsystems for the Optical Access Network)
Category: 
Keyword: 
optical gatingelectroabsorption modulatorpolarization insensitivitylarge optical confinement
 Summary | Full Text:PDF(542.8KB)

Integrated Tunable DBR Laser with EA-Modulator Grown by Selective Area MOVPE
Yukio KATOH Koji YAMADA Tatsuo KUNII Yoh OGAWA 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 1997/01/25
Vol. E80-C  No. 1  pp. 69-73
Type of Manuscript:  Special Section PAPER (Special Issue on Devices, Packaging Technology, and Subsystems for the Optical Access Network)
Category: 
Keyword: 
WDMintegrated laserDBR laserEA-modulatorMQWselective area growthMOVPE
 Summary | Full Text:PDF(408.6KB)