Abstract
The cavities of laser oscillators can be formed by holographic gratings induced in a nonlinear active medium by generating optical beams themselves. The possibility of realizing a laser with a ring cavity formed by the gain grating in the laser crystal was discussed recently.1,2 A simple scheme of the self-starting ring laser can be realized using the refractive-index grating that accompanies the grating of population in the Nd:YAG laser crystal.
© 2001 Optical Society of America
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