Abstract
Self-pumped phase conjugation (SPPC) by near-forward stimulated thermal scattering was observed in nematic liquid crystals (NLC) with absorbers.1,2 The threshold of parametric generation (caused by thermal nonlinearity) for pumping waves of equal intensity is much higher in low-absorption NCL, which makes SPPC more difficult to achieve. However, it is this kind of media that can be used for SPPC of high-average-power laser beams. In this work we studied possibilities of reducing the parametric generation threshold in low-absorbing NLC with a nonreciprocal loop scheme.
© 1994 IEEE
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