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Proceedings Paper

Etched in-fiber Bragg gratings for temperature sensing at high temperatures
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Paper Abstract

We present a new type of fiber Bragg grating (FBG) in which we etch the grating into the flat surface of a D-shaped optical fiber. Instead of being written in the core of the fiber, as are standard FBGs, these surface relief fiber Bragg gratings (SR-FBGs) are placed in the cladding above the core. These gratings are a viable alternative to standard FBGs for sensing applications. In this work we describe the fabrication process for etching Bragg gratings into the surface of D-fibers and demonstrate their performance as temperature sensors. We show that SR-FBGs resist much higher temperatures than standard FBGs by demonstrating their operation up to 1100 degrees Celsius.

Paper Details

Date Published: 16 May 2005
PDF: 10 pages
Proc. SPIE 5758, Smart Structures and Materials 2005: Smart Sensor Technology and Measurement Systems, (16 May 2005); doi: 10.1117/12.600215
Show Author Affiliations
Kevin H. Smith, Brigham Young Univ. (United States)
Benjamin L. Ipson, Brigham Young Univ. (United States)
Tyson L. Lowder, Brigham Young Univ. (United States)
Aaron R. Hawkins, Brigham Young Univ. (United States)
Richard H. Selfridge, Brigham Young Univ. (United States)
Stephen M. Schultz, Brigham Young Univ. (United States)


Published in SPIE Proceedings Vol. 5758:
Smart Structures and Materials 2005: Smart Sensor Technology and Measurement Systems
Eric Udd; Daniele Inaudi, Editor(s)

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