Self-Mixing Interference in Dual-Polarization Microchip Nd:YAG Lasers
WAN Xin-Jun, ZHANG Shu-Lian, LIU Gang, FEI Li-Gang
State Key Laboratory of Precision Measurement Technology and Instruments, Department of Precision Instruments, Tsinghua University, Beijing 100084
Self-Mixing Interference in Dual-Polarization Microchip Nd:YAG Lasers
WAN Xin-Jun;ZHANG Shu-Lian;LIU Gang;FEI Li-Gang
State Key Laboratory of Precision Measurement Technology and Instruments, Department of Precision Instruments, Tsinghua University, Beijing 100084
关键词 ：
42.55.Sa ,
42.25.Ja ,
42.79.Qx
Abstract ： The self-mixing interference in dual-polarization microchip Nd:YAG lasers is demonstrated. Under optical feedback, the orthogonal polarization components of the laser would undergo antiphase intensity modulations; at high feedback level, the polarization switching appears. We also observe that the laser self-mixing sensitivity changes periodically with the frequency difference of orthogonal polarizations. An initial theoretical model is put out and agrees well with the experiments. The results are useful for self-mixing sensitivity enhancement and offer a new way of absolute distance measurement.
Key words ：
42.55.Sa
42.25.Ja
42.79.Qx
出版日期: 2004-11-01
:
42.55.Sa
(Microcavity and microdisk lasers)
42.25.Ja
(Polarization)
42.79.Qx
(Range finders, remote sensing devices; laser Doppler velocimeters, SAR, And LIDAR)
引用本文:
WAN Xin-Jun;ZHANG Shu-Lian;LIU Gang;FEI Li-Gang. Self-Mixing Interference in Dual-Polarization Microchip Nd:YAG Lasers[J]. 中国物理快报, 2004, 21(11): 2175-2178.
链接本文:
https://cpl.iphy.ac.cn/CN/
或
https://cpl.iphy.ac.cn/CN/Y2004/V21/I11/2175
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2004, Vol. 21 
