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Anomalous Variation of Beat Frequency in a Dual Frequency He-Ne Laser
Liu WeiXin; Sun MingZhe
2016
Source PublicationCHINESE PHYSICS LETTERS
ISSN0256-307X
Volume33Issue:2
AbstractThe beat frequency in a dual frequency He-Ne laser varies while the resonant cavity length is tuned. As to the laser with two longitudinal modes, the variation amplitude is commonly less than 500 kHz, proven by experiments and theories. This study reveals an anomalous variation of the beat frequency when a piece of element is put into the cavity and is aligned with the laser axis. Consequently the variation amplitude could reach 22 MHz, several dozen times larger than that without the intra-cavity element. This cannot be explained only by laser mode pulling and pushing effects. Some influencing factors are investigated experimentally, including the tilted angle of the element and the distance between its surface and cavity mirror. The qualitative analysis is discussed, which agrees with the experimental results.
KeywordSOLID-STATE LASER PHASE DIFFERENCE BIREFRINGENCE PRECISION CAVITY COMPONENTS INTENSITY FEEDBACK SIGNALS PHYSICS
Language英语
Funding Project[State Key Laboratory of Precision Measurement Technology and Instruments, Tsinghua University]
Document Type期刊论文
Identifierhttp://ir.bao.ac.cn/handle/114a11/62992
Collection中国科学院国家天文台
Affiliation中国科学院国家天文台
First Author AffilicationNational Astronomical Observatories, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Liu WeiXin,Sun MingZhe. Anomalous Variation of Beat Frequency in a Dual Frequency He-Ne Laser[J]. CHINESE PHYSICS LETTERS,2016,33(2).
APA Liu WeiXin,&Sun MingZhe.(2016).Anomalous Variation of Beat Frequency in a Dual Frequency He-Ne Laser.CHINESE PHYSICS LETTERS,33(2).
MLA Liu WeiXin,et al."Anomalous Variation of Beat Frequency in a Dual Frequency He-Ne Laser".CHINESE PHYSICS LETTERS 33.2(2016).
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