摘要
介绍了中红外激光的产生方式以及各种中红外激光器的特点。结合CO2激光器倍频产生中红外的优点,重点讨论了CO2激光器倍频晶体的性能。对常用的双折射相位匹配(BPM)倍频晶体和准相位匹配(QPM)倍频晶体性能进行了比较分析。展望了高功率CO2倍频激光器的发展需要解决的问题及可能的技术途径。
The methods to produce mid-infrared lasers and the features of different mid-infrared lasers are introduced.Combined with the advantages of the second harmonic generation in CO2 laser,the performance of frequency doubling crystals in the CO2 laser are mainly discussed.The performances of the most widely used birefringent phase matching（BPM） and quasi phase matching（QPM） frequency doubling crystals are compared and analyzed.The problems and probable techniques for the development of second harmonic generation in CO2 laser are previewed.
出处
《激光与光电子学进展》
CSCD
北大核心
2012年第9期30-37,共8页
Laser & Optoelectronics Progress
基金
北京市自然科学基金(4112005)资助课题
关键词
非线性光学
CO2激光器
倍频
准相位匹配
中红外
nonlinear optics
CO2 laser
frequency doubling
quasi-phase matching
mid-infrared
