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Proceedings Paper

High-Precision, Digital, Phase-Stepping Interferometry With Laser Diodes
Author(s): P. Hariharan
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Paper Abstract

The use of a laser diode for phase-stepping interferometry is very attractive, because the wavelength can be shifted by changing the injection current. However, several problems have to be overcome if high precision measurements are to be made. This paper analyses some of the sources of error and shows how they can be controlled.

Paper Details

Date Published: 25 April 1990
PDF: 6 pages
Proc. SPIE 1162, Laser Interferometry: Quantitative Analysis of Interferograms: Third in a Series, (25 April 1990); doi: 10.1117/12.962735
Show Author Affiliations
P. Hariharan, CSIRO Division of Applied Physics (Australia)


Published in SPIE Proceedings Vol. 1162:
Laser Interferometry: Quantitative Analysis of Interferograms: Third in a Series
Ryszard J. Pryputniewicz, Editor(s)

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