Title :
All-optical switching and sampling based on a parametric device with type II phase-matching
Author :
Lefort, L. ; Barthelemy, A.
Author_Institution :
Fac. des Sci., Inst. de Recherche en Commun. Opt. et Microondes, Limoges, France
Abstract :
We report a new arrangement for all-optical switching that is very simple to implement. It is based on a degenerate parametric amplifier working at low gain level (G=3 to 5 dB) that preserves an on/off ratio close to 40 to 50 dB. It relies on the characteristic features of type II phase-matching in the case of parametric amplification at degeneracy, where a single pump photon breaks into two photons of half energy with crossed linear polarizations. The device has been designed to allow the ultrafast switching of weak light
Keywords :
high-speed optical techniques; optical parametric amplifiers; optical switches; signal sampling; 3 to 5 dB; all-optical switching; degenerate parametric amplifier; sampling; type II phase-matching; ultrafast switching; Birefringence; Communication switching; Frequency conversion; Optical amplifiers; Optical frequency conversion; Optical pulses; Polarization; Pulse amplifiers; Sampling methods; Switches;
Conference_Titel :
Lasers and Electro-Optics Society Annual Meeting, 1995. 8th Annual Meeting Conference Proceedings, Volume 1., IEEE
Conference_Location :
San Francisco, CA
Print_ISBN :
0-7803-2450-1
DOI :
10.1109/LEOS.1995.484898
