Study of dual wavelength composite output of solid state laser based on adjustment of resonator parameters

Lei Wang; Jinsong Nie; Xi Wang; Yuze Hu

doi:10.1117/12.2244324

19 October 2016 Study of dual wavelength composite output of solid state laser based on adjustment of resonator parameters

Lei Wang, Jinsong Nie, Xi Wang, Yuze Hu

Author Affiliations +

Proceedings Volume 10152, High Power Lasers, High Energy Lasers, and Silicon-based Photonic Integration; 101520A (2016) https://doi.org/10.1117/12.2244324
Event: International Symposium on Optoelectronic Technology and Application 2016, 2016, Beijing, China

Abstract

The 1064nm fundamental wave (FW) and the 532nm second harmonic wave (SHW) of Nd:YAG laser have been widely applied in many fields. In some military applications requiring interference in both visible and near-infrared spectrum range, the de-identification interference technology based on the dual wavelength composite output of FW and SHW offers an effective way of making the device or equipment miniaturized and low cost. In this paper, the application of 1064nm and 532nm dual-wavelength composite output technology in military electro-optical countermeasure is studied. A certain resonator configuration that can achieve composite laser output with high power, high beam quality and high repetition rate is proposed. Considering the thermal lens effect, the stability of this certain resonator is analyzed based on the theory of cavity transfer matrix. It shows that with the increase of thermal effect, the intracavity fundamental mode volume decreased, resulting the peak fluctuation of cavity stability parameter. To explore the impact the resonator parameters does to characteristics and output ratio of composite laser, the solid-state laser’s dual-wavelength composite output models in both continuous and pulsed condition are established by theory of steady state equation and rate equation. Throughout theoretical simulation and analysis, the optimal KTP length and best FW transmissivity are obtained. The experiment is then carried out to verify the correctness of theoretical calculation result.

Citation Download Citation

Lei Wang, Jinsong Nie, Xi Wang, and Yuze Hu "Study of dual wavelength composite output of solid state laser based on adjustment of resonator parameters", Proc. SPIE 10152, High Power Lasers, High Energy Lasers, and Silicon-based Photonic Integration, 101520A (19 October 2016); https://doi.org/10.1117/12.2244324

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