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Suppression of the Intensity Noise in Solid Nd:YAG Lasersby Optoelectronic Feedback
Author(s): 
Pages: 9-12
Year: Issue:  3
Journal: Journal of Northern Jiaotong University

Keyword:  固体激光器 强度噪声 弛豫振荡噪声;
Abstract: 阐述了固体激光器强度噪声的特性,实验观测表明驰豫振荡是单块固体Nd:YAG激光器强度噪声的主要来源,噪声峰值的中心频率随着泵浦和输出功率的增加向高频方向移动,且在中心频率附近发生180°相位跳变.当1064nm红外激光输出功率为1W时,弛豫振荡峰值频率约为650kHz.采用光电反馈的方法设计制作了噪声压缩电路,使得噪声峰值中心频率位置的幅度降低30dB,低频区域噪声压缩幅度约10dB.
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