Five-frame phase-shifting algorithm insensitive to diode laser power variation

被引：11

作者：

Afifi, M

Nassim, K

Rachafi, S

机构：

[1] Univ Chouaib Doukkali, Fac Sci, El Jadida, Morocco

[2] Fac Sci Ben Msik, Casablanca, Morocco

来源：

OPTICS COMMUNICATIONS | 2001年 / 197卷 / 1-3期

关键词：

digital speckle pattern interferometry; phase-shifting algorithm; laser diode;

D O I：

10.1016/S0030-4018(01)01411-0

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The purpose of the present work is an elaboration a five-frame phase-shifting algorithm. which is insensitive to a bias intensity modulation introduced by a laser diode used as a phase shifter. This study, based on Fourier description, gives criterions on frequency spectra of sampling functions. The linear phase-shift miscalibration and the quadratic nonlinearity of detector error are evaluated for these algorithms. (C) 2001 Published by Elsevier Science B.V.

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收藏

页码：37 / 42

页数：6

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