Title :
Ultrafast all-optical switching using differential spin excitation for all-optical serial-to-parallel conversion
Author :
Takahashi, Ryo ; Yasui, Takako ; Kondo, Naoto ; Suzuki, Hiroyuki
Author_Institution :
NTT Photonics Labs., NTT Corp., Kanagawa, Japan
Abstract :
In this paper, we demonstrate ultrafast all-optical switching using differential spin excitation for all-optical serial-to-parallel conversion in normal MQWs with very high excitonic nonlinearity and long carrier lifetime. The MQWs provides extremely high extinction ratio, very high switching efficiency, and ultrafast switching time independent of the spin relaxation time and carrier lifetime.
Keywords :
carrier lifetime; carrier relaxation time; high-speed optical techniques; nonlinear optics; optical switches; quantum well lasers; MQW; all-optical serial-to-parallel conversion; carrier lifetime; differential spin excitation; extinction ratio; spin relaxation time; ultrafast all-optical switching; ultrafast switching time; Charge carrier lifetime; Extinction ratio; High speed optical techniques; Optical pulses; Optical pumping; Optical switches; Probes; Quantum well devices; Ultrafast optics; Ultraviolet sources;
Conference_Titel :
Lasers and Electro-Optics Europe, 2003. CLEO/Europe. 2003 Conference on
Print_ISBN :
0-7803-7734-6
DOI :
10.1109/CLEOE.2003.1313584
