Toshihiko HIROOKA


Plug-and-Play Optical Interconnection Using Digital Coherent Technology for Resilient Network Based on Movable and Deployable ICT Resource Unit
Tetsuro KOMUKAI Hirokazu KUBOTA Toshikazu SAKANO Toshihiko HIROOKA Masataka NAKAZAWA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2014/07/01
Vol. E97-B  No. 7  pp. 1334-1341
Type of Manuscript:  Special Section PAPER (Joint Special Section on Opto-electronics and Communications for Future Optical Network)
Category: 
Keyword: 
resilient networkmovable and deployable ICT resource unitoptical interconnectiondigital coherent technologyplug-and play
 Summary | Full Text:PDF(3.5MB)

Single-Channel 1.28 Tbit/s-525 km DQPSK Transmission Using Ultrafast Time-Domain Optical Fourier Transformation and Nonlinear Optical Loop Mirror
Pengyu GUAN Hans Christian Hansen MULVAD Yutaro TOMIYAMA Toshiyuki HIRANO Toshihiko HIROOKA Masataka NAKAZAWA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2011/02/01
Vol. E94-B  No. 2  pp. 430-436
Type of Manuscript:  Special Section PAPER (Special Section on Extremely Advanced Optical Transmission Technologies and Transmission Optical Fiber Technologies towards Exabit Era)
Category: 
Keyword: 
high-speed optical pulse transmissionoptical Fourier transformationultrashort optical pulseoptical phase modulationoptical time-division multiplexingdifferential quadrature phase shift keying
 Summary | Full Text:PDF(2.3MB)

Ultra-Stable Regeneratively Mode-Locked Laser as an Opto-Electronic Microwave Oscillator and Its Application to Optical Metrology
Masataka NAKAZAWA Masato YOSHIDA Toshihiko HIROOKA 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2007/02/01
Vol. E90-C  No. 2  pp. 443-449
Type of Manuscript:  INVITED PAPER (Special Section on Evolution of Microwave and Millimeter-Wave Photonics Technology)
Category: 
Keyword: 
ultrafast lasersmode-locked lasershigh-speed optical transmissionoptical standardsmetrology
 Summary | Full Text:PDF(915KB)