A singly resonant optical parametric oscillator is reported that uses a periodically poled LiNbO(3) crystal and is synchronously pumped by a cw mode-locked 1.047-microm Nd:YLF laser. Picosecond pulses were tunable from 1.67 to 2.806 microm. Mean output powers of 120 mW (90 mW) were obtained for the signal (idler) wave with an overall slope efficiency of 61% at a pump depletion of 75% when the oscillator was operating at three times above threshold.
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Butterworth et al. (1996) studied this question.
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