Title :
Optical security switch based on spatially phase matching in photorefractive media
Author :
Okamoto, Atsushi ; Funakoshi, Hisatoshi ; Bunsen, Masatoshi ; Ito, Terumasa ; Sato, Kunihiro
Author_Institution :
Graduate Sch., Hokkaido Univ., Sapporo, Japan
Abstract :
In photorefractive four-wave mixing, when two counter-propagating wave fronts of pump beams match, a phase conjugate beam is generated on the probe beam. Here we propose an optical switch or optical hub with security functions as an application example of this phase matching switching to optical communication devices. To confirm the basic property of the security function, two-wave mixing configuration was used as the substitution for the four-wave mixing configuration.
Keywords :
multiwave mixing; optical communication equipment; optical phase conjugation; optical phase matching; optical switches; photorefractive materials; telecommunication security; counter-propagating wave fronts; optical communication devices; optical security functions; optical security switch; phase conjugate beam generation; phase matching switching; photorefractive four-wave mixing; photorefractive media; probe beam; pump beams; spatially phase matching; two-wave mixing configuration; Four-wave mixing; Laser excitation; Nonlinear optics; Optical frequency conversion; Optical mixing; Optical pumping; Optical switches; Photorefractive effect; Probes; Security;
Conference_Titel :
Lasers and Electro-Optics Europe, 2005. CLEO/Europe. 2005 Conference on
Print_ISBN :
0-7803-8974-3
DOI :
10.1109/CLEOE.2005.1567968
