Tunable Mid-IR dual frequency laser based on a Single-Resonant Optical Parametric Oscillator
Received:November 03, 2018  Revised:December 04, 2018  download
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Author NameAffiliationE-mail
LI Kun School of Optics and Photonics, Beijing Institute of Technology likun0377@126.com 
YANG Su-Hui School of Optics and Photonics, Beijing Institute of Technology  
WANG Xin School of Optics and Photonics, Beijing Institute of Technology wangxin@bit.edu.cn 
LI Zhuo School of Optics and Photonics, Beijing Institute of Technology  
ZHANG Jin-Ying School of Optics and Photonics, Beijing Institute of Technology  
Abstract:A Tunable Mid-IR dual frequency laser based on Single-Resonant Optical Parametric Oscillator is presented. The mid-infrared wavelength tunability of 3-3.8 μm is achieved by adjusting the temperature and polarization period of MgO:PPLN crystal. When the pump power is 6.9 W and the temperature of the MgO:PPLN is 75°C, output power of 1.25W is obtained. The highest optical-optical conversion efficiency of the idler light with respect to pump light is 18.2%. The beat note frequency is equal to the beat note frequency of the pump, which can be tuned from 125 to 175 MHz. The modulation index of the beat note of idle could be adjusted with different dual-frequency power radio of pump.
keywords:Laser, Dual-frequency, Mid-Infrared, Optical Parametric Oscillator
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Copyright:《Journal of Infrared And Millimeter Waves》