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

Two-wavelength scanning spot interferometer using single-frequency diode lasers

Not Accessible

Your library or personal account may give you access

Abstract

A two-wavelength interferometer is described that can be used to measure distances to rough surfaces with micrometer resolution. The measuring range can be made as large as several centimeters. Owing to the small numerical aperture of the object beam, the interferometer is particularly suitable in applications where a long working distance is required. The interferometer uses two single-frequency diode lasers to create a virtual two-wavelength laser. The equivalent wavelength of this laser can be easily tuned by changing the temperature of the laser diodes in opposite directions.

© 1988 Optical Society of America

Full Article  |  PDF Article
More Like This
Two-wavelength sinusoidal phase/modulating laser-diode interferometer insensitive to external disturbances

Osami Sasaki, Hiroyuki Sasazaki, and Takamasa Suzuki
Appl. Opt. 30(28) 4040-4045 (1991)

Interferometric laser rangefinder using a frequency modulated diode laser

A. J. den Boef
Appl. Opt. 26(21) 4545-4550 (1987)

Heterodyne interferometry with a frequency-modulated laser diode

Jun Chen, Yukihiro Ishii, and Kazumi Murata
Appl. Opt. 27(1) 124-128 (1988)

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 (7)

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 (12)

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