Double phase conjugated mirror in CdTe : Ge

The coherent oscillation in double phase conjugate mirror (DPCM) geometry a t 1.064 mum with ac or de electric field applied to CdTe:Ge sample is repor ted. The threshold of oscillations and the conversion efficiency are studie d at different electric field, total light intensity and intensity ratio of the pump beams. The conversion efficiency up to 50% is reached with rather poor fidelity which can be improved by means of a cylindrical telescope. A new architecture of all optical interconnect is proposed. An auxiliary ill umination is used to control the coupling strength of the sample, switching it either below or above the threshold of oscillation. A prototype of opti cal switch is built that can connect one emitter/receiver to two other emit ters/receivers. A switching time less than 5 ms is achieved at the intensit ies of the recording and erasing beams less than 100 mW/cm(2). (C) 2001 Els evier Science B.V. All rights reserved.