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Applied Physics Letters

Self-pumped and double phase conjugation in GaAs with applied dc electric field

Peter L. Chua, D. T. H. Liu, L. J. Cheng

Published Aug 27, 1990• 13 citations
Publisher

Abstract

Self-pumped and double phase conjugation are first demonstrated in undoped GaAs with applied dc electric field at 1.06 μm wavelength. Phase-conjugate reflectivities of up to 3% and 0.5% respectively, are obtained and other dependences are reported. Reported values of the self-pumped phase-conjugate reflectivity are compared with those of InP.

DOI
10.1063/1.103388

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Self-pumped and double phase conjugation are first demonstrated in undoped GaAs with applied dc electric field at 1.06 μm wavelength. Phase-conjugate reflectivities of up to 3% and 0.5% respectively, are obtained and other dependences are reported. Reported values of the self-pumped phase-conjugate reflectivity are compared with those of InP.
An experimental study of double-pumped phase conjugation (DPPC) in a gain medium (Nd:YAG) is presented. The input–output energy and phase conjugate reflectivity of the system was experimentally characterized, with a maximum reflectivity of R∼160 observed. A self-starting DPPC laser was also produced by use of a feedback mirror, and spatial and temporal outputs are presented. The DPPC laser produced a TEM00 spatial mode output of 113 mJ in a 20-ns single-longitudinal mode pulse at a repetition rate of 10 Hz.