7 August 1993 Multimode 2.1-um optical parametric oscillator based on walk-off compensated LiNbO3
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Proceedings Volume 1869, Intracavity and Extracavity Control of Laser Beam Properties; (1993) https://doi.org/10.1117/12.148386
Event: OE/LASE'93: Optics, Electro-Optics, and Laser Applications in Scienceand Engineering, 1993, Los Angeles, CA, United States
Abstract
We present results of an optical parametric oscillator based on lithium niobate pumped by a multi-longitudinal and multi-transverse mode Nd:YAG laser. Two 5 cm crystals were used in a walk-off compensated arrangement with a 14 cm overall cavity length. The oscillation threshold was 30 mj with a measured slope efficiency of 34% and an overall efficiency approaching 28%. We were capable of continuously tuning the OPO from 1.5 to 3.8 microns. At 2.1 microns, the maximum measured output energy was 58 mj in a 10 ns pulse. A comparison was made with an OPO using two 1 cm KTP crystals.
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William J. Scharpf, Bruce P. Boczar, "Multimode 2.1-um optical parametric oscillator based on walk-off compensated LiNbO3", Proc. SPIE 1869, Intracavity and Extracavity Control of Laser Beam Properties, (7 August 1993); doi: 10.1117/12.148386; https://doi.org/10.1117/12.148386
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