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Proceedings Paper

Integrated optic frequency shifters for space heterodyne interferometry
Author(s): Roman C. Gutierrez; Serge Dubovitsky; Karl M. Kissa; Daniel J. Fritz
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Paper Abstract

Heterodyne interferometer laser gauges are used in space- based astronomical interferometers to very accurately measure and compensate for variations in starlight pathlength. Bragg cells have been traditionally used to generate the heterodyne signal by shifting the frequency of the laser light. This paper presents the development and qualification of an integrated optic frequency shifter (IOFS) which offers improved performance and reliability compared with Bragg cell technology. The most critical advantage of the IOFS for space applications is that it enables fiber optic metrology source integration, which facilitates the integration process and result in more reliable and compact heterodyne interferometer laser gauges.

Paper Details

Date Published: 24 July 1998
PDF: 9 pages
Proc. SPIE 3350, Astronomical Interferometry, (24 July 1998); doi: 10.1117/12.317167
Show Author Affiliations
Roman C. Gutierrez, Jet Propulsion Lab. (United States)
Serge Dubovitsky, Jet Propulsion Lab. (United States)
Karl M. Kissa, Uniphase Telecommunications Products (United States)
Daniel J. Fritz, Uniphase Telecommunications Products (United States)


Published in SPIE Proceedings Vol. 3350:
Astronomical Interferometry
Robert D. Reasenberg, Editor(s)

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