Li Yuanji, Feng Jinxia, Li Peng, Zhang Kuanshou, Chen Yujin, Lin Yanfu, Huang Yidong
State Key Laboratory of Quantum Optics and Quantum Optics Devices, Institute of Opto-Electronics, Shanxi University, Taiyuan 030006, China.
Opt Express. 2013 Mar 11;21(5):6082-90. doi: 10.1364/OE.21.006082.
We build up a LD end-pumped Er,Yb:YAB laser at 1.55 μm and improve the laser performance by end cooling the gain medium efficiently through a sapphire plate. 680 mW cw single transverse mode laser output was obtained with the slope efficiency of 16.3%. Using an etalon placed in the laser cavity, 400 mW cw single frequency 1.55 μm laser output was achieved with the slope efficiency of 11.8%. The laser power fluctuation was less than ± 1.3% in a given period of 1.5 hours. The 1.55 μm laser presents low noise properties, that the intensity and the phase noise reach the shot noise level for the analysis frequencies higher than 4 MHz and 5 MHz, respectively.
我们搭建了一台1.55μm的激光二极管端面泵浦Er，Yb:YAB激光器，并通过蓝宝石板对增益介质进行有效端面冷却来提高激光性能。获得了680mW连续波单横模激光输出，斜率效率为16.3%。在激光腔内放置一个标准具后，实现了400mW连续波单频1.55μm激光输出，斜率效率为11.8%。在1.5小时的给定时间段内，激光功率波动小于±1.3%。该1.55μm激光器具有低噪声特性，在分析频率高于4MHz和5MHz时，强度噪声和相位噪声分别达到散粒噪声水平。
