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Optical Engineering

Unusual techniques for absolute distance measurement
Author(s): Peter J. de Groot
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Paper Abstract

I describe four unusual laser systems for absolute measures of linear distance. All employ the familiar techniques of multiple wavelengths, chirped wavelength, optical feedback and intensity modulation, but in somewhat unfamiliar architectures. These examples serve to illustrate the breadth of solutions to this important problem.

Paper Details

Date Published: 1 January 2001
PDF: 5 pages
Opt. Eng. 40(1) doi: 10.1117/1.1330702
Published in: Optical Engineering Volume 40, Issue 1
Show Author Affiliations
Peter J. de Groot, Zygo Corp. (United States)

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