LD泵浦Nd∶YAG微片激光器异常强度噪声研究

任成; 张书练

LD泵浦Nd∶YAG微片激光器异常强度噪声研究

任成^1, ,,
张书练²

1.
清华大学核能与新能源技术研究院,北京 100084;
2.
清华大学精密仪器与机械学系,北京 100084

详细信息

通讯作者:
任成(1984-)，男，湖北浠水人，博士，清华大学核研院助理研究员，主要从事测量检测及仪器仪表的研究工作。

中图分类号: TN241
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出版历程
- 刊出日期: 2012-05-15

Abnormal intensity noises of LD-pumped microchip Nd∶YAG laser

REN Cheng^{1
, ,},
ZHANG Shu-lian²

1.
Institute of Nuclear and New Energy Technology,Tsinghua University,Beijing 100084,China;
2.
Department of Precision Instruments &Mechanology,Tsinghua University,Beijing 100084,China

摘要

摘要: 针对实验中发现LD泵浦Nd∶YAG微片激光器的三类异常强度噪声，其强度波动幅度达20%~30%，严重影响了系统的稳定性，从理论和实验上对这三类强度噪声的特性进行了研究，包括外部光回馈引入的功率波动，LD异常噪声向固体激光器的传递，端泵浦偏离引起的模式耦合等。就各类噪声来源分别提出了相应的消除方法，抑制了微片Nd∶YAG激光器输出功率噪声，改善了激光输出特性，满足了频差精密测量的需要。
- Nd∶YAG微片激光器 /
- 强度噪声 /
- 端泵浦 /
- 光回馈
Abstract: Three types of abnormal intensity noises of laser-diode(LD)-pumped Nd:YAG microchip laser were studied based on experimental data and theoretical analysis, including noises caused by the outside light feedback, the transmission of LD noise to solid laser and the mode coupling due to the deviation of end pumping. Corresponding methods were provided to eliminate these noises in order to suppress the intensity noise of the microchip Nd:YAG laser, improve the laser output characteristics and meet the demand of precision measurements.
- Nd∶YAG microchip laser /
- intensity noise /
- end pumping /
- light feedback

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参考文献(1)

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