Title :
Ultrafast all-optical switching based on frequency shift accompanied by the semiconductor band-filling effect
Author :
Nakamura, Shigeru ; Ueno, Yoshiyasu ; Tajima, Kazuhito
Author_Institution :
Optoelectron. & High Frequency Device Res. Labs., NEC Corp., Ibaraki, Japan
Abstract :
Ultrafast all-optical switches are quite attractive for future optical communications and processing. For practical application, important issues are switching speed, repetition rate, and switching energy. We recently proposed a transient cross-phase modulation (T-XPM) all-optical switch. This switch utilizes a frequency shift induced by a transient nonlinear phase shift. The mechanism of the T-XPM all-optical switch not only provides ultrafast and highly efficient switching but also makes the configuration quite simple. We present ultrafast 200-fs switching and 1.5 Tbps demultiplexing, and high-repetition (10 GHz) in the operation of our T-XPM all-optical switch
Keywords :
demultiplexing; high-speed optical techniques; nonlinear optics; optical communication equipment; optical modulation; optical switches; phase modulation; 200 fs; T-XPM all-optical switch; Tbps demultiplexing; frequency shift; high-repetition; optical communications; repetition rate; semiconductor band-filling effect; switching energy; switching speed; transient cross-phase modulation all-optical switch; transient nonlinear phase shift; ultrafast all-optical switches; ultrafast all-optical switching; ultrafast fs switching; Communication switching; Frequency; Nonlinear optics; Optical filters; Optical pulses; Optical refraction; Optical switches; Optical variables control; Optical waveguides; Power semiconductor switches;
Conference_Titel :
Lasers and Electro-Optics Society Annual Meeting, 1998. LEOS '98. IEEE
Conference_Location :
Orlando, FL
Print_ISBN :
0-7803-4947-4
DOI :
10.1109/LEOS.1998.737780
