摘要
Temperature-insensitive phase-matching of second-harmonic generation(SHG)can be realized using two nonlinear crystals with opposite signs of the temperature derivation of phase mismatch.The design procedure for optimizing crystal lengths is presented,and full numerical simulations for the SHG process,based on realistic crystals,are performed at a typical high-power-laser wavelength of~1μm.It is suggested that the proposed two-crystal design can support high efficiency(60–70%)of SHG in the high-average power regime of a kilowatt.
作者
ZHONG Hai-Zhe
YUAN Peng
ZHU He-Yuan
QIAN Lie-Jia
钟亥哲;袁鹏;朱鹤元;钱列加(Department of Optical Science and Engineering,Fudan University,Shanghai 200433;Key Laboratory for Laser Plasmas(Ministry of Education)and Physics Department,Shanghai Jiaotong University,Shanghai 200240)
基金
Supported by the National Natural Science Foundation of China under Gratn Nos 61008017 and 60890202.
