Frequency Shifts Of Self-Pumped Phase Conjugators

M. D. Ewbank; P. Yeh

doi:10.1117/12.960386

16 June 1986 Frequency Shifts Of Self-Pumped Phase Conjugators

M. D. Ewbank, P. Yeh

Proceedings Volume 0613, Nonlinear Optics and Applications; (1986) https://doi.org/10.1117/12.960386
Event: O-E/LASE'86 Symposium, 1986, Los Angeles, CA, United States

Abstract

The reflection from most photorefractive, self-pumped phase conjugators differs in frequency from the incident beam by a small amount (Δω/ω ≈ 10^-15). A theory and the supporting experiments which explain such frequency shifts are presented. In our theory, four-wave mixing is responsible for the generation of the conjugated wave where a self-oscillation arising from photorefractive coupling provides the customary pumping beams. The frequency of these pumping beams is determined by a resonance cavity geometry and may be slightly different from that of the incident beam. Nondegenerate four-wave mixing using these self-oscillating pumping beams give rise to the frequency shift of the phase-conjugate reflection. Experimental results are in good agreement with theory.

Citation Download Citation

M. D. Ewbank and P. Yeh "Frequency Shifts Of Self-Pumped Phase Conjugators", Proc. SPIE 0613, Nonlinear Optics and Applications, (16 June 1986); https://doi.org/10.1117/12.960386

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