An official website of the United States government
Here’s how you know
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.
Absolute optical ranging using low coherence interferometry
Published
Author(s)
B. L. Danielson, C. Y. Boisrobert
Abstract
We describe a method for measuring submicrometer distances with an asymmetric fiber Michelson interferometer having an LED as a source of radiation. By measuring the phase slope of the Fourier components in the frequency domain, it is possible to locate the position of reflections with nanometer precision even in the presence of sample dispersion. The method is compatible with time domain sampling at the Nyquist rate which assures efficiency in data acquisition and processing.
Danielson, B.
and Boisrobert, C.
(1991),
Absolute optical ranging using low coherence interferometry, Optics Letters, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=27347
(Accessed December 5, 2023)