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

Heterodyne interferometry with a frequency-modulated laser diode

Not Accessible

Your library or personal account may give you access

Abstract

A digital phase measuring interferometer with a frequency-modulated laser diode using the integrated-bucket technique is described. The injection current is continuously changed to introduce a time-varying phase difference between the two beams of an unbalanced Twyman-Green interferometer. The intensity of the interference patterns is integrated with a CCD array sensor for intervals of one-quarter period of the fringe. Using the intensity data a microcomputer calculates the phase to be detected. Some experimental results with the interferometer are presented; the rms repeatability obtained was λ/80.

© 1988 Optical Society of America

Full Article  |  PDF Article
More Like This
Diode laser direct modulation heterodyne interferometer

Kimio Tatsuno and Yoshito Tsunoda
Appl. Opt. 26(1) 37-40 (1987)

Effect of beat frequency on the measured phase of laser-diode heterodyne interferometry

Ribun Onodera and Yukihiro Ishii
Appl. Opt. 35(22) 4355-4360 (1996)

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)

References

You do not have subscription access to this journal. Citation lists with outbound citation 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

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 (7)

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

Metrics

Select as filters


Select Topics Cancel
© Copyright 2022 | Optica Publishing Group. All Rights Reserved