Origin and elimination of dynamic instability in a self-pumped phase-conjugate mirror.
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.
Zheng
Y
Y
Sasaki
A
A
Gao
X
X
Aoyama
H
H