Self-mixing laser Doppler velocimetry with a dual-polarization Yb:Er glass laser

被引：15
|
作者：
Kervevan, L. [1 ]
Gilles, H. [1 ]
Girard, S. [1 ]
Laroche, M. [1 ]
Leprince, P. [1 ]
机构：
[1] ENSICAEN, CEA, CNR,UMR 6637, CIRIL,Equip Lasers Isntrumentat Opt & Applicat, F-14050 Caen, France
来源：
APPLIED PHYSICS B-LASERS AND OPTICS | 2007年 / 86卷 / 01期
关键词：
D O I：
10.1007/s00340-006-2461-1
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
Self-mixing laser Doppler velocimetry using a dual-polarization Yb:Er-doped phosphate glass laser is investigated. The two orthogonally polarized eigenstates emitted simultaneously by the laser oscillator are employed to perform a heterodyne detection, allowing a complete characterization of the lateral sidebands generated via the optical feedback around the beating peak. Two different experimental set-ups have been implemented: (i) direct feedback on one of the two modes or (ii) crosstalk between the two modes via a non-reciprocal Faraday element. The results are analysed and applications to velocity measurements are discussed. Finally, some considerations of the noise correlated in phase and in opposite phase on the two polarization states are also discussed.
引用
收藏
页码：169 / 176
页数：8
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