Kiyo ISHII


Fast Optical Circuit Switch for Intra-Datacenter Networking
Koh UEDA Yojiro MORI Hiroshi HASEGAWA Hiroyuki MATSUURA Kiyo ISHII Haruhiko KUWATSUKA Shu NAMIKI Toshio WATANABE Ken-ichi SATO 
Publication:   
Publication Date: 2017/10/01
Vol. E100-B  No. 10  pp. 1740-1746
Type of Manuscript:  INVITED PAPER (Joint Special Section on Opto-electronics and Communications for Future Optical Network)
Category: 
Keyword: 
switchingcircuitarray waveguide devices
 Summary | Full Text:PDF(2.3MB)

A Proposal of Cyclic Sleep Control Technique for Backup Resources in ROADM Systems to Reduce Power Consumption of Photonic Network
Tomoyuki HINO Hitoshi TAKESHITA Kiyo ISHII Junya KURUMIDA Shu NAMIKI Shigeru NAKAMURA Akio TAJIMA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2014/12/01
Vol. E97-B  No. 12  pp. 2698-2705
Type of Manuscript:  PAPER
Category: Network System
Keyword: 
power-savingcyclic sleepdynamic controlC/D/C-ROADMtransponder aggregatorself-checkpath check
 Summary | Full Text:PDF(2.9MB)

Prototype Highly Integrated 848 Transponder Aggregator Based on Si Photonics for Multi-Degree Colorless, Directionless, Contentionless Reconfigurable Optical Add/Drop Multiplexer
Hitoshi TAKESHITA Tomoyuki HINO Kiyo ISHII Junya KURUMIDA Shu NAMIKI Shigeru NAKAMURA Shigeki TAKAHASHI Akio TAJIMA 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2013/07/01
Vol. E96-C  No. 7  pp. 966-973
Type of Manuscript:  Special Section PAPER (Special Section on Recent Advances in Integrated Photonic Devices)
Category: 
Keyword: 
multi-degreeCDC-ROADMtransponder aggregatorSi photonics
 Summary | Full Text:PDF(7.3MB)

Compact Matrix-Switch-Based Hierarchical Optical Path Cross-Connect with Colorless Waveband Add/Drop Ratio Restriction
Ryosuke HIRAKO Kiyo ISHII Hiroshi HASEGAWA Ken-ichi SATO Osamu MORIWAKI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2011/04/01
Vol. E94-B  No. 4  pp. 918-927
Type of Manuscript:  Special Section PAPER (Special Section on Photonic Network Technologies in Terabit Network Era)
Category: 
Keyword: 
hierarchical optical cross-connectwavebandadd/drop ratioMUX/DMUXAWG
 Summary | Full Text:PDF(3.2MB)