Toru SEGAWA


Wavelength-Routed Switching for 25-Gbit/s Optical Packets Using a Compact Transmitter Integrating a Parallel-Ring-Resonator Tunable Laser and an InGaAlAs EAM
Toru SEGAWA Wataru KOBAYASHI Tatsushi NAKAHARA Ryo TAKAHASHI 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2014/07/01
Vol. E97-C  No. 7  pp. 719-724
Type of Manuscript:  INVITED PAPER (Special Section on Opto-electronics and Communications for Future Optical Network)
Category: 
Keyword: 
tunable laserelectro-absorption modulatoroptical packet switchingphotonic integrated circuits
 Summary | Full Text:PDF(3.3MB)

Monolithically Integrated Wavelength-Routing Switch Using Tunable Wavelength Converters with Double-Ring-Resonator Tunable Lasers
Toru SEGAWA Shinji MATSUO Takaaki KAKITSUKA Yasuo SHIBATA Tomonari SATO Yoshihiro KAWAGUCHI Yasuhiro KONDO Ryo TAKAHASHI 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2011/09/01
Vol. E94-C  No. 9  pp. 1439-1446
Type of Manuscript:  PAPER
Category: Optoelectronics
Keyword: 
monolithic integrationphotonic integrated circuitstunable laserwavelength conversionall-optical switch
 Summary | Full Text:PDF(3.4MB)

Flat-Topped Spectral Response in a Ladder-Type Interferometric Filter
Seok-Hwan JEONG Shinji MATSUO Yuzo YOSHIKUNI Toru SEGAWA Yoshitaka OHISO Hiroyuki SUZUKI 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2005/08/01
Vol. E88-C  No. 8  pp. 1747-1754
Type of Manuscript:  PAPER
Category: Optoelectronics
Keyword: 
optical filtersflattened filter responsewaveguide devicemultimode interference coupler
 Summary | Full Text:PDF(1006.7KB)

Apodised Chirped Gratings Using Deep-Ridge Waveguides with Vertical-Groove Surface Gratings
Jun MIYAZU Toru SEGAWA Shinji MATSUO Tetsuyoshi ISHII Hiroyuki SUZUKI Yuzo YOSHIKUNI 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2005/07/01
Vol. E88-C  No. 7  pp. 1521-1522
Type of Manuscript:  LETTER
Category: Optoelectronics
Keyword: 
chirped gratingsapodisationreflectivity ripplegroup delay ripple
 Summary | Full Text:PDF(361.9KB)

A High-Speed Tunable Optical Filter Using a Semiconductor Ring Resonator for Photonic Packet Switch
Shinji MATSUO Yoshitaka OHISO Toru SEGAWA 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2005/03/01
Vol. E88-C  No. 3  pp. 295-302
Type of Manuscript:  Special Section PAPER (Special Section on Optical Signal-Processing Devices for Photonic Networks)
Category: 
Keyword: 
ring resonatorsemiconductor waveguidetunable optical filterWDMoptical packet switch
 Summary | Full Text:PDF(1.1MB)