| Low noise, continuous-wave single-frequency 1.5-μm laser generated by a singly resonant optical parametric oscillator |
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| 引用本文： | 刘建丽,刘勤,李宏,李鹏,张宽收.Low noise, continuous-wave single-frequency 1.5-μm laser generated by a singly resonant optical parametric oscillator[J].中国物理 B,2011,20(11):114215-114215. |
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| 作者姓名： | 刘建丽 刘勤 李宏 李鹏 张宽收 |
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| 作者单位： | State Key Laboratory of Quantum Optics and Quantum Optics Devices, Institute of Opto-Electronics, Shanxi University, Taiyuan 030006, China |
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| 基金项目： | 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). |
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| 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.
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| 关 键 词： | 光参量振荡器 激光产生 低噪声 连续波 单频 谐振 Nd：YVO4晶体 周期性极化铌酸锂 |
| 收稿时间： | 2/9/2011 12:00:00 AM |
| 修稿时间： | 5/4/2011 12:00:00 AM |
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