Optical feedback in dual frequency lasers with birefringent external cavity

LIU Yin; LI Yan

In order to study the optical feedback characteristics of the dual frequency laser,a birefringent external cavity was studied throughboth theoretical analysis and experiments.In the experiments,the phenomenon of the fringe frequency doubled was observed.It was found that the resolution of the optical feedback system was doubled and the sensitivity of the optical feedback system was also improved after the modes competition between both the polarized light beams.The work is useful for improving the resolution of the optical feedback systems.

Corresponding author: LI Yan, liyan@mail.tsinghua.edu.cn

1. The State Key Laboratory of Precision Measurement Technology and Instruments, Department of Precision Instruments, Tsinghua University, Beijing 100084, China

Received Date: 2006-07-10

Accepted Date: 2006-09-11

Available Online: 2007-10-25

Abstract: In order to study the optical feedback characteristics of the dual frequency laser,a birefringent external cavity was studied throughboth theoretical analysis and experiments.In the experiments,the phenomenon of the fringe frequency doubled was observed.It was found that the resolution of the optical feedback system was doubled and the sensitivity of the optical feedback system was also improved after the modes competition between both the polarized light beams.The work is useful for improving the resolution of the optical feedback systems.

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Reference (12)

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Optical feedback in dual frequency lasers with birefringent external cavity

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References

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