CW periodically poled LiNbO3 optical parametric oscillator model with strong idler absorption

Dennis D. Lowenthal

doi:10.1117/12.347674

4 May 1999 CW periodically poled LiNbO₃ optical parametric oscillator model with strong idler absorption

Dennis D. Lowenthal

Proceedings Volume 3613, Solid State Lasers VIII; (1999) https://doi.org/10.1117/12.347674
Event: Optoelectronics '99 - Integrated Optoelectronic Devices, 1999, San Jose, CA, United States

Abstract

An analytical model is described for predicting the gain and performance of cw, singly resonant, optical parametric oscillators with strong idler absorption, strong pump depletion and thermally induced dephasing. Pump and signal beam focusing effects are included by using the Guha, Wu and Falk h_sm parameters. It is shown that significant parametric gain can be generated with an idler absorption- length product exceeding 10, and in some cases idler absorption is seen to enhance the pump depletion by impeding back conversion. The model accurately predicts current experimental results with weak idler absorption, and greatly over predicts the performance with high idler absorption. This difference is believed to be due to thermally induced focus that strongly disturbs the resonant optical cavity for the signal. Shorter crystal lengths, with resonant pump enhancement, offers a possible solution.

Citation Download Citation

Dennis D. Lowenthal "CW periodically poled LiNbO₃ optical parametric oscillator model with strong idler absorption", Proc. SPIE 3613, Solid State Lasers VIII, (4 May 1999); https://doi.org/10.1117/12.347674

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