Measurement of the residual birefringence distribution in glass laser disk by transverse zeeman laser
Measurement of the residual birefringence distribution in glass laser disk by transverse zeeman laser
复制标题
横向塞曼激光测量玻璃激光盘残余双折射分布
DOI：
10.1002/ecjb.4420740503
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发表时间：
1991
期刊：
影响因子：
--
通讯作者：
H. Kohwa
中科院分区：
文献类型：
--
作者：
N. Umeda;H. Kohwa
本文研究了利用以稳频横向塞曼激光器为光源的双折射测量装置，测量玻璃激光盘的残余双折射分布。
This paper considers the measurement of the residual birefringence distribution in a glass laser disk by means of birefringent measurement equipment with a frequency-stabilized transverse Zeeman laser as a light source.
The birefringence by the residual distortion of a glass laser amplifying medium is an important factor in determining its optical performance. A method of accurate measurement of the birefringence phase difference and the principal axis direction has been conceived based on an optical heterodyne method using a frequency-stabilized transverse Zeeman laser which is a two-frequency orthogonally polarized light source. This measurement system consists of a rotating half-wave plate, a rotating linear polarizer, a detector and electric phase meter and a personal computer.
In this paper, the measurement principle and the error analysis are clarified with the use of Stokes parameters. The data processing method for the measured results and the experimentally observed minimum detection limit are described. With the present measurement system, birefringent measurement of an elliptic glass laser disk is carried out and its residual birefringence distribution is clarified.