Direct measurement of fringe amplitude and phase using a heterodyne interferometer operating in broadband light

We describe a simple heterodyne method for measuring fringe amplitude and phase difference using an interferometer operating in broadband light. A demonstration system is presented using a Michelson-type interferometer with a bandwidth of greater than 300 nm.

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Bibliographic Details
Published in:Optics communications 2004-01, Vol.229 (1), p.59-64
Main Authors: Somervell, A.R.D, Williams, M.E.K, Barnes, T.H
Format: Article
Language:English
Subjects:
Coherence
Exact sciences and technology
Fundamental areas of phenomenology (including applications)
Instruments, apparatus, components and techniques common to several branches of physics and astronomy
Interferometers
Optical instruments, equipment and techniques
Optics
Physics
Wave optics
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Description
Summary:We describe a simple heterodyne method for measuring fringe amplitude and phase difference using an interferometer operating in broadband light. A demonstration system is presented using a Michelson-type interferometer with a bandwidth of greater than 300 nm.
ISSN:0030-4018
1873-0310
DOI:10.1016/j.optcom.2003.10.056