Abstract

We have fabricated a double-phase-conjugate mirror (DPCM) in a single crystal of vanadium-doped cadmium telluride. Because of the high gain in the near-infrared region, a DPCM is possible at a telecommunication wavelength of 1.54 μm in this material. Experimental and theoretical thresholds for the DPCM are compared, and an experimental diffraction efficiency of 7.4% is reported. Conical diffraction has been eliminated by the method of cylindrical lenses. We propose to use this astigmatic configuration to enhance the capacity of interconnections between fibers with a single crystal in a vector–matrix architecture.

© 1995 Optical Society of America

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