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Opt Lett. 2003 Apr 1;28(7):552-4.

Reductions of threshold for a mid-infrared optical parametric oscillator by an intracavity optical amplifier.

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  • 1Department of Physics, University of Arkansas, Fayetteville, Arkansas 72701, USA.


We demonstrate that the threshold for a mid-IR optical parametric oscillator based on periodically poled LiNbO3 is significantly reduced by the introduction of an optical amplifier inside the cavity. Thresholds as low as 8 mW and a tuning range of 3.0-4.2 microm were attained for stable single-mode operation.

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