Thermal dephasing in an enhanced cavity based high-power second harmonic generation

摘要: We report on the performance of an enhanced-cavity (EC) designed for obtaining high-power and efficiency second-harmonic generation (SHG). This is performed by numerical simulation SHG coupled equations in presence a thermal dephasing effect that effectively intensified through embedding periodically poled LiNbO3 crystal oven-surrounded scheme. It found setting PPLN temperature at optimum value, adjusting mirror reflectively, pumping power certain values, gaining more than 90% possible. further realized ECSHG device can be improved about 15%–50%. Moreover, compared to single-pass scheme, EC-based shown very promising candidate reduce suppress stability radiation.