TUNABLE LiNbO3 OPTICAL OSCILLATOR WITH EXTERNAL MIRRORS

Abstract
With an optical cavity formed by external mirrors, parametric oscillation in LiNbO3 has been achieved from 0.684 μ to 2.355 μ − 70% of the theoretical range of the oscillator. The oscillator, pumped at 0.53 μ, was tuned by rotation of the LiNbO3 crystal. Total output powers of about 50 W were observed with pump powers of 5 × 104 W. The logarithm of the output power is proportional to the reciprocal of the optical length of the cavity.
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