Double phase conjugate mirror in CdTe:Ge

Abstract The coherent oscillation in double phase conjugate mirror (DPCM) geometry at 1.064 μm with ac or dc electric field applied to CdTe:Ge sample is reported. The threshold of oscillations and the conversion efficiency are studied 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 illumination is used to control the coupling strength of the sample, switching it either below or above the threshold of oscillation. A prototype of optical switch is built that can connect one emitter/receiver to two other emitters/receivers. A switching time less than 5 ms is achieved at the intensities of the recording and erasing beams less than 100 mW/cm 2 .