MEASUREMENT OF SPATIAL COHERENCE OF A COPPER VAPOR LASER-BEAM USING A REVERSAL SHEAR INTERFEROMETER

被引：13

作者：

OMATSU, T

KURODA, K

SHIMURA, T

CHIHARA, K

ITOH, M

OGURA, I

机构：

[1] Institute of Industrial Science, University of Tokyo, Toyko, 106, Roppongi, Minatoku

来源：

OPTICAL AND QUANTUM ELECTRONICS | 1991年 / 23卷 / 04期

关键词：

D O I：

10.1007/BF00619643

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

We measured the spatial coherence of a copper vapour laser (CVL) beam with an unstable resonator by the reversal shear interferometer. By this method, we can evaluate the spatial coherence function from a single-shot measurement. The spatial coherence width was 5 mm when an unstable resonator with a magnification factor of 60 was used. Moreover we verified the result by the theoretical calculation on the basis of the passive resonator model.

引用

页码：S477 / S484

页数：8