Tatsuya SASAKI


Card-Based Physical Zero-Knowledge Proof for Kakuro
Daiki MIYAHARA Tatsuya SASAKI Takaaki MIZUKI Hideaki SONE 
Publication:   
Publication Date: 2019/09/01
Vol. E102-A  No. 9  pp. 1072-1078
Type of Manuscript:  Special Section PAPER (Special Section on Discrete Mathematics and Its Applications)
Category: Cryptography and Information Security
Keyword: 
cryptographycard-based protocolsreal-life hands-on cryptographyKakurophysical zero-knowledge proof
 Summary | Full Text:PDF(1.2MB)

Hybrid-Integrated Symmetric Mach-Zehnder All-Optical Switches and Ultrafast Signal Processing
Kazuhito TAJIMA Shigeru NAKAMURA Akio FURUKAWA Tatsuya SASAKI 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2004/07/01
Vol. E87-C  No. 7  pp. 1119-1125
Type of Manuscript:  INVITED PAPER (Special Section on Ultrafast Photonics)
Category: 
Keyword: 
all-optical switchoptical communicationnonlinear opticssemiconductor optical amplifier
 Summary | Full Text:PDF(1.5MB)

Control Scheme for Optimizing the Interferometer Phase Bias in the Symmetric-Mach-Zehnder All-Optical Switch
Yoshiyasu UENO Morio TAKAHASHI Shigeru NAKAMURA Kouichi SUZUKI Takanori SHIMIZU Akio FURUKAWA Takemasa TAMANUKI Kazuo MORI Satoshi AE Tatsuya SASAKI Kazuhito TAJIMA 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2003/05/01
Vol. E86-C  No. 5  pp. 731-740
Type of Manuscript:  INVITED PAPER (Joint Special Issue on Recent Progress in Optoelectronics and Communications)
Category: OECC Awarded Paper
Keyword: 
all-opticalcontrol schemedemultiplexinginterferometerphase bias
 Summary | Full Text:PDF(4.7MB)

Wavelength-Selectable Microarray Light Sources for DWDM Photonic Networks
Takao MORIMOTO Kenichiro YASHIKI Koji KUDO Tatsuya SASAKI 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2002/04/01
Vol. E85-C  No. 4  pp. 982-989
Type of Manuscript:  INVITED PAPER (Special Issue on Recent Progress of Integrated Photonic Devices)
Category: Active Devices
Keyword: 
wavelength-selectableDFB lasermultimode interference couplersemiconductor optical amplifier (SOA)EA-modulator
 Summary | Full Text:PDF(543.7KB)

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(1.5MB)

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(1.2MB)

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(915.1KB)

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(1.2MB)

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(1MB)

Wide-Wavelength-Range Modulator-Integrated DFB Laser Diodes Fabricated on a Single Wafer
Masayuki YAMAGUCHI Koji KUDO Hiroyuki YAMAZAKI Masashige ISHIZAKA Tatsuya SASAKI 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 1998/08/25
Vol. E81-C  No. 8  pp. 1219-1224
Type of Manuscript:  INVITED PAPER (Special Issue on High-Capacity WDM/TDM Networks)
Category: Active Devices for Photonic Networks
Keyword: 
distributed feedback laser diodeWDMgratingEB lithographyoptical modulatorMOVPE
 Summary | Full Text:PDF(570.7KB)

In-Plane Bandgap Energy Controlled Selective MOVPE and Its Applications to Photonic Integrated Circuits
Tatsuya SASAKI Masayuki YAMAGUCHI Keiro KOMATSU Ikuo MITO 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 1997/05/25
Vol. E80-C  No. 5  pp. 654-663
Type of Manuscript:  INVITED PAPER (Special Issue on Photonic Integrated Circuits)
Category: Semiconductor Devices, Circuits and Processing
Keyword: 
photonic integrated circuitselective MOVPEmultiple quantum welloptical waveguide
 Summary | Full Text:PDF(1019.4KB)

A Transceiver PIC for Bidirectional Optical Communication Fabricated by Bandgap Energy Controlled Selective MOVPE
Takeshi TAKEUCHI Tatsuya SASAKI Kiichi HAMAMOTO Masako HAYASHI Kikuo MAKITA Kenkou TAGUCHI Keiro KOMATSU 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 1997/01/25
Vol. E80-C  No. 1  pp. 54-61
Type of Manuscript:  Special Section PAPER (Special Issue on Devices, Packaging Technology, and Subsystems for the Optical Access Network)
Category: 
Keyword: 
photonic integrated circuitsselective MOVPEoptical waveguidebidirectional communication
 Summary | Full Text:PDF(698.3KB)

A Boundary Element Approach to Field Analysis of Junction-Gate Field Effect Transistors
Yasuhiro TANAKA Tatsuya SASAKI Toshihisa HONMA Ikuo KAJI 
Publication:   IEICE TRANSACTIONS (1976-1990)
Publication Date: 1986/02/25
Vol. E69-E  No. 2  pp. 148-156
Type of Manuscript:  PAPER
Category: Semiconductors
Keyword: 
 Summary | Full Text:PDF(690.8KB)