High-Temperature Sensing Using Surface Relief Fiber Bragg Gratings

Author

Lowder, Tyson L. ; Smith, Kevin H. ; Ipson, Benjamin L. ; Hawkins, Aaron R. ; Selfridge, Richard H. ; Schultz, Stephen M.

Author_Institution

Electr. Eng. Dept., Brigham Young Univ., Provo, UT, USA

Volume

17

Issue

9

fYear

2005

Firstpage

1926

Lastpage

1928

Abstract

We present a new type of fiber Bragg grating (FBG) that can be used in high-temperature sensing applications. We use the flat side of a D-shaped optical fiber as a platform to etch the grating into the surface of the fiber. Because the grating becomes a physical feature of the fiber, it is not erased at high temperatures as are standard FBGs. These surface relief fiber Bragg gratings will operate up to high temperatures. We provide a brief explanation of the fabrication process and present our results for operation up to 1100 $^\\circ$ C.

Keywords

Bragg gratings; etching; fibre optic sensors; high-temperature techniques; optical fibre fabrication; temperature sensors; 1100 degC; D-shaped optical fiber; etching; fabrication process; fiber Bragg gratings; high-temperature sensing; surface relief; Bragg gratings; Chemical sensors; Fiber gratings; Optical device fabrication; Optical fiber devices; Optical fiber sensors; Optical fibers; Optical sensors; Temperature measurement; Temperature sensors; Birefringence; Bragg scattering; high-temperature techniques; optical fiber devices;

fLanguage

English

Journal_Title

Photonics Technology Letters, IEEE

Publisher

ieee

ISSN

1041-1135

Type

jour

DOI

10.1109/LPT.2005.852646

Filename

1498905