Effects of self-induced ellipse rotation and self-focusing in a Q-switched laser cavity.
An optical Kerr medium in a pulsed laser cavity can appreciably affect the pulsed laser output via self-induced ellipse rotation and self-focusing. Stretching of a Q-switched ruby laser pulse has been observed with either of these two effects. Transverse mode selection by self-focusing has also been seen. The results appear in good agreement with theoretical prediction.
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