13 January 2017 30 Watts mid-infrared optical parametric oscillator based on spectral beam combination technology
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Proceedings Volume 10254, XXI International Symposium on High Power Laser Systems and Applications 2016; 1025410 (2017) https://doi.org/10.1117/12.2256491
Event: XXI International Symposium on High Power Laser Systems and Applications, 2016, Gmunden, Austria
Abstract
Limited by the thermal effects and the laser-induced damage characteristics of the non-linear crystals, mid-infrared (MIR) output power of single optical parametric oscillator (OPO) is hard to get further promoted with excellent beam quality. An alternative solution is the multiple-beams combination technology, which exactly provided an effective approach for decreasing the thermal effects and the damage risk of the OPO system under high power operation. In this letter, the experimental study on the spectral beam combination of three idler MIR lasers was carried out for the first time. An optical parametric system with MIR output power of 30 W at 3130nm, 3352nm, and 3670nm was finally obtained. Experimental results indicated that the beam quality M2 factors of the combined laser were measured to be ~1.76 and ~2.42 in the horizontal and vertical directions, respectively, which confirmed the feasibility of the schematic design.
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Yaping Shang, Peng Wang, Xiao Li, Xiaojun Xu, "30 Watts mid-infrared optical parametric oscillator based on spectral beam combination technology", Proc. SPIE 10254, XXI International Symposium on High Power Laser Systems and Applications 2016, 1025410 (13 January 2017); doi: 10.1117/12.2256491; https://doi.org/10.1117/12.2256491
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