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Proceedings Paper

Interferometer design for writing Bragg gratings in optical fibers
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Paper Abstract

Bragg Gratings are waveguides, typically single-mode optical fibers, into which a periodic refractive index modulation has been imprinted by a patterned UV exposure. Fiber Bragg Gratings separate telecom frequency bands or compensate for optical dispersion in long-haul fiber networks, and also serve as strain sensors for civil engineering or geophysical studies and oil, gas or mining exploitation. A Bragg Grating writer is an interferometer for generating the UV exposure pattern. It is one of the unusual cases where an interferometer is a production tool, rather than a metrology instrument. In this paper, we review the most common Bragg Grating writing geometry and propose an opto-mechanical structure having minimal adjustment and very high mechanical stability.

Paper Details

Date Published: 20 June 2002
PDF: 8 pages
Proc. SPIE 4777, Interferometry XI: Techniques and Analysis, (20 June 2002); doi: 10.1117/12.472247
Show Author Affiliations
Peter J. de Groot, Zygo Corp. (United States)
Xavier Colonna de Lega, Zygo Corp. (United States)
Jay Walter Dawson, CiDRA Corp. (United States)
Trevor W. MacDougall, CiDRA Corp. (United States)
Minfu Lu, CiDRA Corp. (United States)
John R. Troll, CiDRA Corp. (United States)

Published in SPIE Proceedings Vol. 4777:
Interferometry XI: Techniques and Analysis
Katherine Creath; Joanna Schmit, Editor(s)

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