主振荡功率放大器光纤阵列的相干合成技术
Coherent combining technology of master oscillator power amplifier fiber arrays.
作者信息
Xiao R, Hou J, Liu M, Jiang Z F
机构信息
College of Optoelectric Science and Engineering, National University of Defense Technology, Changsha 410073,China.
出版信息
Opt Express. 2008 Feb 4;16(3):2015-22. doi: 10.1364/oe.16.002015.
Coherent beam combination of fiber laser array is an important technology of realize high-power, high-radiance fiber laser system. In this paper, Master Oscillator-Power Amplifier scheme is used to realize phase controlling of three ytterbium fiber amplifiers, the experiment results of both two and three fiber amplifiers are given and compared. Far-field patterns with different fill factor are studied experimentally. We perform optical phase-noise measurements of a commercial 1-W ytterbium fiber amplifier using our phase control electronics, the dominant phase noises of the 1-W fiber amplifier are at frequencies below one kilohertz.
光纤激光阵列的相干光束合成是实现高功率、高亮度光纤激光系统的一项重要技术。本文采用主振荡功率放大方案实现了对三个镱光纤放大器的相位控制，给出并比较了两个和三个光纤放大器的实验结果。对不同填充因子的远场图样进行了实验研究。我们使用相位控制电子设备对一台商用1瓦镱光纤放大器进行了光学相位噪声测量，该1瓦光纤放大器的主要相位噪声处于低于1千赫兹的频率。
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