Optical Feedback Characteristics in He?Ne Dual Frequency Lasers
作者： Mao Wei , Zhang Shu-Lian , Zhang Lian-Qing , Zhu Jun , Li Yan
DOI: 10.1088/0256-307X/23/5/034
关键词:
摘要: Optical feedback characteristics in He–Ne dual frequency lasers are studied systematically different power ratios with a variable attenuator. Feedback vary from 0.010 up to 0.998. Five distinct regimes of self-interference effects found and defined as I, II, III, IV V. Accordingly, five optical levels have been put forward lasers. Strong mode competitions observed III IV. In regime V, multiple investigated. The basic theoretical analysis is also presented. Our results can advance the research self-mixing interferometer displacement sensor orthogonally polarized
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