Influence of mode pulling effect on beat frequency in dual-frequency He-Ne laser

被引：0
|
作者：
Wang Z. [1 ]
Long X. [1 ]
Liang J. [1 ]
Wang F. [1 ]
机构：
[1] Department of Opto-Electronic Engineering, College of Opto-Electronic Science and Engineering, National University of Defense Technology, Changsha
来源：
Guangxue Xuebao/Acta Optica Sinica | 2010年 / 30卷 / 10期
关键词：
Beat frequency; Measurement; Mode pulling effect; Ring laser;
D O I：
10.3788/AOS20103010.2941
中图分类号：
学科分类号：
摘要：
In order to improve beat frequency stability in the dual-frequency laser with piezoelectric transducer for frequency stability, various error factors were analyzed, and with special attention on mode pulling effect. Due to mode pulling effect, beat frequency stability was influenced by path length, gain and temperature. When an ordinary power supply was used, the beat frequency stability of the laser was 4.5 × 10-8 in a constant temperature room. When a high-stability power supply was used, the beat frequency stability was 1.2 × 10-9. Beat frequency has relation between current and temperature was obtained, which also showed gain and temperature had important influence on beat frequency. Therefore, in order to obtain high beat-frequency stability in the dual-frequency lasers, variations of path length, current and temperature should be reduced.
引用
收藏
页码：2941 / 2946
页数：5
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