Polarization independent phase demodulation using photorefractive two-wave mixing

被引:15
|
作者
Delaye, P
Blouin, A
Drolet, D
Monchalin, JP
de Montmorillon, LA
Roosen, G
机构
[1] Ctr Sci Orsay, Lab Charles Fabry, Inst Opt, CNRS,Unite Mixte Rech 8501, F-91403 Orsay, France
[2] Natl Res Council Canada, Inst Ind Mat, Boucherville, PQ J4B 6Y4, Canada
关键词
D O I
10.1063/1.124070
中图分类号
O59 [应用物理学];
学科分类号
摘要
We describe both theoretically and experimentally a polarization independent interferometric adaptive photodetector based on photorefractive two-wave mixing. The configuration is based on the simultaneous recording of two independent gratings in a single photorefractive crystal. Applied to the detection of ultrasonic signals, this interferometric photodetector operates with depolarized beams issued from multimode fibers and gives a detection limit close to the ultimate. (C) 1999 American Institute of Physics. [S0003-6951(99)01021-9].
引用
收藏
页码:3087 / 3089
页数:3
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