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

Surface profilometry with laser-diode optical feedback interferometer outside optical benches

Not Accessible

Your library or personal account may give you access

Abstract

A simple and robust interferometer with a laser diode subject to optical feedback from the interferometer is presented for surface testing of a spherical mirror. The fringe phase can be locked by the optical feedback within less than 0.2π (peak-to-valley value) even when the interferometer is placed on a wooden table. The fringe locking is caused by the change of lasing wavelength that suppresses the net phase change to be much less than 2π. The locked fringe pattern with spatial carriers can be analyzed by a fringe analyzer at a video rate, and the measurement results of the spherical mirror showed the same result as on an optical bench.

© 2000 Optical Society of America

Full Article  |  PDF Article
More Like This
Analysis of fringe locking in a laser diode interferometer under injection-current modulation

Jiyuan Liu and Ichirou Yamaguchi
Opt. Lett. 24(5) 336-338 (1999)

Surface-profile measurement by means of a polarization Sagnac interferometer with parallel optical feedback

T. Shirai, T. H. Barnes, and T. G. Haskel
Opt. Lett. 24(5) 297-299 (1999)

Closed-loop phase-shifting interferometry with a laser diode

Toshihiko Yoshino and Hiroshi Yamaguchi
Opt. Lett. 23(20) 1576-1578 (1998)

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 (4)

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 (2)

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