Skip to main content
U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

How Accurately Can Your Interferometer Interpolate Fringes?

Published

Author(s)

John R. Lawall

Abstract

Optical interferometry is the means by which real-world displacements are measured relative to a standard reference wavelength. Most interferometers use a helium-neon laser and generate a signal with a period of half the wavelength, λ/2=316.5 nm. To resolve smaller distances, the system must perform fringe interpolation.
Citation
How Accurately Can Your Interferometer Interpolate Fringes?
Volume
1
Issue
No. 9

Keywords

interferometry, interpolation, periodic error

Citation

Lawall, J. (2001), How Accurately Can Your Interferometer Interpolate Fringes?, How Accurately Can Your Interferometer Interpolate Fringes? (Accessed July 25, 2024)

Issues

If you have any questions about this publication or are having problems accessing it, please contact reflib@nist.gov.

Created September 1, 2001, Updated February 17, 2017