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Proceedings Paper

Dual-frequency He-Ne laser with intracavity birefringment film
Author(s): Jinghua Liu; Shulian Zhang; Jun Zhu; Yan Li; Qihong Wu; Ian J. Hodgkinson
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Paper Abstract

In order to simplify the structure of the birefringence dual frequency laser in which a quart crystal or an artificial stress plate is settled, improve the convenience of adjustment, and improve stability of FD (frequency difference), a novel structure of dual frequency laser is constructed, in which the FD is produced by the cavity mirror coated with complex multilayer birefringent film. Different layers of the multilayer film perform different functions for the whole film system of sandwich structure. From the outermost to the innermost near the substrate, there are anti-reflectance film, birefringent film and reflectance film sequentially. Utilizing both the transverse Zeeman effect and intra-cavity birefringence effect in a He-Ne laser, frequency-difference (FD) about 7 MHz is achieved in experiments.

Paper Details

Date Published: 20 September 2002
PDF: 8 pages
Proc. SPIE 4919, Advanced Materials and Devices for Sensing and Imaging, (20 September 2002); doi: 10.1117/12.471871
Show Author Affiliations
Jinghua Liu, Tsinghua Univ. (China)
Shulian Zhang, Tsinghua Univ. (China)
Jun Zhu, Tsinghua Univ. (China)
Yan Li, Tsinghua Univ. (China)
Qihong Wu, Univ. of Otago (New Zealand)
Ian J. Hodgkinson, Univ. of Otago (New Zealand)

Published in SPIE Proceedings Vol. 4919:
Advanced Materials and Devices for Sensing and Imaging
Jianquan Yao; Yukihiro Ishii, Editor(s)

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