PHASE-EXTRACTION ALGORITHM IN LASER-DIODE PHASE-SHIFTING INTERFEROMETRY

被引：30

作者：

ISHII, Y

ONODERA, R

机构：

[1] Department of Electronics, University of Industrial Technology, Sagamihara, Kanagawa, 229

来源：

OPTICS LETTERS | 1995年 / 20卷 / 18期

关键词：

D O I：

10.1364/OL.20.001883

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

A phase-shifting interferometer with a laser diode has been studied that is insensitive to the changes in laser power associated with variation in current. The tested phase is measured by six interferograms by a newly developed phase-extraction algorithm. The phase is calculated from a least-squares fit to an interferogram. The systematic phase error that is due to the variation in laser output has been numerically investigated to have a periodicity of 2 pi rad compared with the experimental result for the conventional phase-extraction algorithm. Good agreement between them is shown. (C) 1995 Optical Society of America

引用

页码：1883 / 1885

页数：3

共 8 条

[1]

Creath K., 1988, Progress in optics. Vol.XXVI, P349, DOI 10.1016/S0079-6638(08)70178-1

[2] GENERALIZED DATA REDUCTION FOR HETERODYNE INTERFEROMETRY [J].