Masato YOSHIDA

256 QAM Digital Coherent Optical Transmission Using Raman Amplifiers
Masato YOSHIDA Seiji OKAMOTO Tatsunori OMIYA Keisuke KASAI Masataka NAKAZAWA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2011/02/01
Vol. E94-B  No. 2  pp. 417-424
Type of Manuscript:  Special Section PAPER (Special Section on Extremely Advanced Optical Transmission Technologies and Transmission Optical Fiber Technologies towards Exabit Era)
Category: 
Keyword: 
coherent transmission, quadrature amplitude modulation, spectral efficiency, frequency-stabilized laser, optical phase-locked loop, 
 Summary | Full Text:PDF(1.4MB)
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 lasers, mode-locked lasers, high-speed optical transmission, optical standards, metrology, 
 Summary | Full Text:PDF(915KB)
A 40 GHz Regeneratively and Harmonically Mode-Locked Erbium-Doped Fiber Laser and Its Longitudinal-Mode Characteristics
Masato YOSHIDA Taro YAGUCHI Shinji HARADA Masataka NAKAZAWA 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2004/07/01
Vol. E87-C  No. 7  pp. 1166-1172
Type of Manuscript:  Special Section PAPER (Special Section on Ultrafast Photonics)
Category: 
Keyword: 
fiber laser, erbium-doped fiber amplifier, ultrashort optical pulses, mode-locking, linewidth measurements, 
 Summary | Full Text:PDF(2.1MB)