中国物理B ›› 2011, Vol. 20 ›› Issue (11): 114215-114215.doi: 10.1088/1674-1056/20/11/114215

• CLASSICAL AREAS OF PHENOMENOLOGY • 上一篇    下一篇

Low noise, continuous-wave single-frequency 1.5-μm laser generated by a singly resonant optical parametric oscillator

刘建丽, 刘勤, 李宏, 李鹏, 张宽收   

  1. State Key Laboratory of Quantum Optics and Quantum Optics Devices, Institute of Opto-Electronics, Shanxi University, Taiyuan 030006, China
  • 收稿日期:2011-02-09 修回日期:2011-05-04 出版日期:2011-11-15 发布日期:2011-11-15
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant No. 60878003), the Science Fund for Excellent Research Team of the National Natural Science Foundation of China (Grant No. 60821004), and the National Basic Research Program of China (Grant No. 2010CB923101).

Low noise, continuous-wave single-frequency 1.5-μm laser generated by a singly resonant optical parametric oscillator

Liu Jian-Li(刘建丽), Liu Qin(刘勤), Li Hong(李宏), Li Peng(李鹏), and Zhang Kuan-Shou(张宽收)   

  1. State Key Laboratory of Quantum Optics and Quantum Optics Devices, Institute of Opto-Electronics, Shanxi University, Taiyuan 030006, China
  • Received:2011-02-09 Revised:2011-05-04 Online:2011-11-15 Published:2011-11-15
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant No. 60878003), the Science Fund for Excellent Research Team of the National Natural Science Foundation of China (Grant No. 60821004), and the National Basic Research Program of China (Grant No. 2010CB923101).

摘要: We report a low noise continuous-wave (CW) single-frequency 1.5-μm laser source obtained by a singly resonant optical parametric oscillator (SRO) based on periodically poled lithium niobate (PPLN). The SRO was pumped by a CW single-frequency Nd:YVO4 laser at 1.06 μm. The 1.02 W of CW single-frequency signal laser at 1.5 μm was obtained at pump power of 6 W. At the output power of around 0.75 W, the power stability was better than ±1.5% and no mode-hopping was observed in 30 min and frequency stability was better than 8.5 MHz in 1 min. The signal wavelength could be tuned from 1.57 to 1.59 μm by varying the PPLN temperature. The 1.5-μm laser exhibits low noise characteristics, the intensity noise of the laser reaches the shot noise limit (SNL) at an analysis frequency of 4 MHz and the phase noise is less than 1 dB above the SNL at analysis frequencies above 10 MHz.

Abstract: We report a low noise continuous-wave (CW) single-frequency 1.5-μm laser source obtained by a singly resonant optical parametric oscillator (SRO) based on periodically poled lithium niobate (PPLN). The SRO was pumped by a CW single-frequency Nd:YVO4 laser at 1.06 μm. The 1.02 W of CW single-frequency signal laser at 1.5 μm was obtained at pump power of 6 W. At the output power of around 0.75 W, the power stability was better than ±1.5% and no mode-hopping was observed in 30 min and frequency stability was better than 8.5 MHz in 1 min. The signal wavelength could be tuned from 1.57 to 1.59 μm by varying the PPLN temperature. The 1.5-μm laser exhibits low noise characteristics, the intensity noise of the laser reaches the shot noise limit (SNL) at an analysis frequency of 4 MHz and the phase noise is less than 1 dB above the SNL at analysis frequencies above 10 MHz.

Key words: singly resonant optical parametric oscillator, 1.5-μm laser, single-frequency operation, low noise

中图分类号:  (Optical parametric oscillators and amplifiers)

  • 42.65.Yj
42.60.Mi (Dynamical laser instabilities; noisy laser behavior) 42.72.Ai (Infrared sources)