1 March 2001 Eye-safe singly resonant KTP parametric oscillator pumped inside the Nd:YAG laser cavity
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Abstract
We describe a singly resonant optical parametric oscillator (OPO) using a noncritically phase-matched KTP crystal, intracavitypumped by a Q-switched Nd:YAG laser. Signal pulse energy of as much as 8.1 mJ in the eye-safe range at 1.58-?m wavelength was coupled out of the cavity. We have elaborated a simple model of an intracavity laserpumped OPO (IOPO), based on the rate equations for the Q-switched laser combined with the coupled equations for the parametric interaction in the nonlinear crystal. At 1.5 times pulsed IOPO threshold, signal pulse widths of 5 and 6 ns were calculated and detected, respectively.
Razvan V. Dabu, Aurel Stratan, Constantin G. Fenic, C. Luculescu, G. L. Muscalu, "Eye-safe singly resonant KTP parametric oscillator pumped inside the Nd:YAG laser cavity," Optical Engineering 40(3), (1 March 2001). https://doi.org/10.1117/1.1349217
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