Open AccessContinuous Multicore Optical Fiber Grating Arrays for Distributed Sensing Applications
Author(s) -
Paul S. Westbrook,
Tristan Kremp,
Kenneth S. Feder,
Wing Ko,
Eric. M. Monberg,
Hongchao Wu,
Debra A. Simoff,
Thierry F. Taunay,
Roy M. Ortiz
Publication year - 2017
Publication title -
journal of lightwave technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.346
H-Index - 200
eISSN - 1558-2213
pISSN - 0733-8724
DOI - 10.1109/jlt.2017.2661680
Subject(s) - communication, networking and broadcast technologies , photonics and electrooptics
We describe the fabrication and distributed sensing capabilities of very long continuous fiber grating sensor arrays in a twisted multicore fiber. The continuous gratings are fabricated in fibers with UV transparent coating using a flexible and scalable reel-to-reel processing system. Single-frequency continuous gratings are characterized using optical frequency-domain reflectometry and a shape reconstruction algorithm to measure fiber bend radius. Broadband reflection gratings are shown to act as enhanced quasi-Rayleigh scattering elements allowing for distributed temperature measurements in the presence of 10-dB transmission loss.