Eyesafe laser based on a ring-cavity KTP optical parametric oscillator

Xu Liu; Changyong Lu; Yong Cheng; Shuyun Wang; Fangzheng Ding

doi:10.1117/12.835512

28 August 2009 Eyesafe laser based on a ring-cavity KTP optical parametric oscillator

Xu Liu, Changyong Lu, Yong Cheng, Shuyun Wang, Fangzheng Ding

Proceedings Volume 7382, International Symposium on Photoelectronic Detection and Imaging 2009: Laser Sensing and Imaging; 73822Y (2009) https://doi.org/10.1117/12.835512
Event: International Symposium on Photoelectronic Detection and Imaging 2009, 2009, Beijing, China

Abstract

A high efficient ring-cavity optical parametric oscillator at 1.57μm eye-safe range using three non-critically phasematched KTP crystals is researched and experimentally demonstrated. The primary advantage of the ring-cavity OPO is that the resonator mirrors are at 30 degrees to the pump beam, so they do not provide any feedback to the pump laser. The signal energy of 75mJ with the pulse width of 6.6ns is obtained under the input pump pulse of 200mJ. This result provided a clear demonstration that high pump-to-signal energy conversion (up to 37.5%) can be achieved from the ringcavity OPO by single-pass pumped method.

Citation Download Citation

Xu Liu, Changyong Lu, Yong Cheng, Shuyun Wang, and Fangzheng Ding "Eyesafe laser based on a ring-cavity KTP optical parametric oscillator", Proc. SPIE 7382, International Symposium on Photoelectronic Detection and Imaging 2009: Laser Sensing and Imaging, 73822Y (28 August 2009); https://doi.org/10.1117/12.835512

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