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Optical Engineering

Optical measurement of the free spectral range and spacing of plane and confocal Fabry-Perot interferometers
Author(s): Helmut Jaeger; Maurizio Musso; Christian Neureiter; Laurentius Windholz
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Paper Abstract

An improved optical method has been developed to determine the free spectral range (FSR) and spacing of Fabry-Perot interferometers (FPIs), based on accurately reproducible measurements of the absolute frequencies of FPI transmission maxima using a tunable cw dye laser and a lam bdameter. The method may be of interest for applications when the FSR of an FPI must be determined with very high accuracy, e.g., in cases of low finesse FPIs or high finesse temperature-stabilized confocal etalons, which provide frequency marks in laser spectroscopic experiments.

Paper Details

Date Published: 1 January 1990
PDF: 5 pages
Opt. Eng. 29(1) doi: 10.1117/12.55560
Published in: Optical Engineering Volume 29, Issue 1
Show Author Affiliations
Helmut Jaeger, Technische Univ. Graz (Austria)
Maurizio Musso, Technische Univ. Graz (Austria)
Christian Neureiter, Technische Univ. Graz (Austria)
Laurentius Windholz, Technische Univ. Graz (Austria)

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