Surface-relief fiber Bragg gratings for sensing applications.
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 FBGs are placed in the cladding above the core. These gratings are a viable alternative to standard FBGs for sensing applications. We describe the fabrication process for etching Bragg gratings into the surface of D-fibers and demonstrate their performance as temperature sensors.
Department of Electrical and Computer Engineering, Brigham Young University, Provo, Utah 84602, USA.
Kevin H
KH
Smith
Benjamin L
BL
Ipson
Tyson L
TL
Lowder
Aaron R
AR
Hawkins
Richard H
RH
Selfridge
Stephen M
SM
Schultz
D004784:Environmental Monitoring / Q000295:instrumentation* / Q000379:methods; D004867:Equipment Design; D019544:Equipment Failure Analysis; D005336:Fiber Optic Technology / Q000295:instrumentation*; D055100:Optical Fibers; D012031:Refractometry / Q000295:instrumentation* / Q000379:methods; D014159:Transducers