In a sum-frequency generation system based on periodically poled nonlinear optical crystal, a new approach to the expansion of acceptance widths of temperature and wavelength has been demonstrated. By using periodically poled KTiOPO4 (PPKTP), the condition is found theoretically so that the tolerances of temperature and wavelength are enlarged. A temperature acceptance width of 60degreesC is obtained experimentally by mixing the light of two diode lasers (1590 nm and 808 nm) in a 10-mm-long PPKTP crystal.
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State Key Laboratory of Quantum Optics and Quantum Optics Devices, Institute of Opto-Electronics, Shanxi UniversityState Key Laboratory of Quantum Optics and Quantum Optics Devices, Institute of Opto-Electronics, Shanxi University
杨荣国
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孙恒信
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张俊香
郜江瑞
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机构:
State Key Laboratory of Quantum Optics and Quantum Optics Devices, Institute of Opto-Electronics, Shanxi UniversityState Key Laboratory of Quantum Optics and Quantum Optics Devices, Institute of Opto-Electronics, Shanxi University