Temperature tunable infrared optical parametric generation based on periodically poled MgO:LiNbO3 crystals |
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| Authors: | Jianghong YAO Liangping XUE Boxia YAN Guozhi JIA Jingjun XU Guangyin ZHANG |
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| Affiliation: | TEDA Applied Physics School, Nankai University, Tianjin 300457, China |
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| Abstract: | By using a short-pulse field, periodically poled grating (A = 29 μm) was successfully fabricated in a 1.0 mm-thick MgO:LiNbO3 (mole fraction of doped MgO is 5%). A high-repetition-rate optical parametric generation (OPG) based on periodically poled MgO:LiNbO3 (PPMgLN) was pumped by a 1.064 μm acoustooptically Q-switched Nd:YVO4 laser. With 3 W of input pump power, 44 mW of output signal power was obtained at a conversion efficiency of 1.5%. Tunable infrared (IR) output from 1.4538-1.4750 μm was also obtained by tuning the temperature of PPMgLN, which is 45℃-160℃. |
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| Keywords: | laser technique optical parametric generation (OPG) periodically poled MgO:LiNbO3 (PPMgLN)crystal quasi-phase matching |
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