模牵引效应对双频HeNe 激光器拍频稳定性的影响.PDF

30 10 V ol . 30 , No . 10 2010 10 ACTA OPTICA SINICA October, 20 10 : ( 2010) 10294 106 模牵引效应对双频HeNe 激光器拍频稳定性的影响 汪之国 龙兴武 梁 晶 王 飞 ( , 4 10073) , , , 4. 5 10- 8 , 1. 2 10- 9 , , , , ; ; ; T N 24 8 A doi: 10 . 3788/ AO 294 1 Influence of Mode Pulling Effect on Beat Frequency in DualFrequency HeNe Laser Wang Zhiguo Long Xingwu Liang Jing Wang Fei ( Depa r tm en t o Opt oElect r onic En gineer ing , College o OptoElectr on ic Scien ce an d En gin eer in g , N at iona l Uni ver sit y o De en se T echn ology , Cha ngsha , Hun an 4 10073, China ) Abstract In or er to improve beat frequency stability in the ualfrequency laser with piezoelectric trans ucer for frequency stability, various error factors were analyze , an with special attention on mo e pulling effect. Due to mo e pulling effect, beat frequency stability was influence by path length, gain an temperature. When an or inary power supply was use , the beat frequency stability of the laser was 4 . 5 10- 8 in a constant temperature room. When a highstability power supply was use , the beat frequency stability was 1. 2 10- 9 . Beat frequency has relation between current an temperature was obtaine , which also showe gain an temperature ha important influence on beat frequency. Therefore, in or er to obtain high beatfrequency stability in the ualfrequency lasers, variations of path length, current an temperature shoul be re uce . Key words measurement; beat frequency; mo e pulling effect; ring laser 1 , H eN e , [ 1~ 7] [ 8]