Hydrophone mandrel for precise placement of gratings

Details Hydrophone mandrel for precise placement of gratings Hydrophone mandrel for precise placement of gratings

2006-10-03

2006-10-03

Font, Frank G. (Department: 2883)

Optical waveguides

Optical waveguide sensor

Including physical deformation or movement of waveguide

Reexamination Certificate

active

07116850

ABSTRACT:
A method and apparatus for reducing the difficulty of controlling the length of a section of optical waveguide wrapped around a mandrel separating Bragg gratings forming an interferometric sensor are provided. The section of optical waveguide may be wrapped on a mandrel having at least two different outer diameters. The mandrel may also include one or more bores for receiving and protecting the Bragg gratings.

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U.K. Search Report, Application No. GB0504902.8, dated Apr. 29, 2005.

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