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
刘建丽, 刘勤, 李宏, 李鹏, 张宽收
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)†
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.
中图分类号: (Optical parametric oscillators and amplifiers)