Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group

Phase-extraction analysis of laser-diode phase-shifting interferometry that is insensitive to changes in laser power

Not Accessible

Your library or personal account may give you access

Abstract

We investigate phase-shifting interferometry with a laser diode that is insensitive to changes in laser power associated with variations in current. A phase-extraction algorithm is newly developed in which the tested phase from six interferograms is measured. A formulation of the algorithm is presented by a least-squares fitting of the interference fringes to the function of the interferogram that includes intensity variations produced by changes in laser power. The performance of the algorithm is compared with the technique of Fourier analysis. A phase error caused by the power change of the laser diode is analyzed theoretically by use of the conventional phase-measurement algorithm and the Fourier-analysis technique. The systematic error is numerically investigated in comparison with the experimental result. A good agreement between them is shown.

© 1996 Optical Society of America

Full Article  |  PDF Article
More Like This
Two-wavelength phase-shifting interferometry insensitive to the intensity modulation of dual laser diodes

Ribun Onodera and Yukihiro Ishii
Appl. Opt. 33(22) 5052-5061 (1994)

Phase-extraction algorithm in laser-diode phase-shifting interferometry

Yukihiro Ishii and Ribun Onodera
Opt. Lett. 20(18) 1883-1885 (1995)

Vibration in phase-shifting interferometry

Peter J. de Groot
J. Opt. Soc. Am. A 12(2) 354-365 (1995)

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Figures (8)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Equations (51)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved