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Updated: Jun 19, 2026

The Generation of Higher-order Laguerre-Gauss Optical Beams for High-precision Interferometry
Published on: August 12, 2013
Origin and elimination of dynamic instability in a self-pumped phase-conjugate mirror
Abstract:
The origin and the elimination of dynamic instability have been experimentally studied in a self-pumped phase-conjugate mirror (SPPCM) of a Cu:KNSBN crystal. Experimental results show that the dynamic instability of the SPPCM arises from the competition between the self-generated fanning effect and SPPCM formation. The ordinary-polarized component of a partially extraordinary-polarized incident light beam can act to decrease the self-generated fanning effect of the photorefractive crystal. We can eliminate the dynamic instability of the SPPCM by restraining the self-generated fanning effect with a partially extraordinary-polarized incident light beam.
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