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Proceedings Paper

Recent advances in tapered fiber Bragg grating technology and applications
Author(s): Tomasz Osuch
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Paper Abstract

A concept, technology and applications of novel linearly chirped Bragg gratings written in fused tapered optical fiber are presented. The novelty of proposed structure is based on the synthesis of chirps resulting from both a fused taper profile and a linearly chirped fringe pattern of the induced refractive index changes within the fiber core. Depending on the orientation of the optical fiber taper relative to the variable-pitch phase mask during UV exposure, tapered and linearly chirped fiber Bragg gratings (TCFBG) with resultant co-directional or counter-directional chirps can achieved and thus their spectral responses can be widely tailored. Moreover the detailed numerical analysis of spectral shaping in TCFBGs is presented. Strain sensing applications of TCFBGs written in both co-direction and counter-directional chirp configurations are proposed and their advantages over typical tapered (uniform) FBG based sensors are highlighted.

Paper Details

Date Published: 10 February 2017
PDF: 8 pages
Proc. SPIE 10325, Optical Fibers and Their Applications 2017, 103250K (10 February 2017); doi: 10.1117/12.2271162
Show Author Affiliations
Tomasz Osuch, Warsaw Univ. of Technology (Poland)
National Institute of Telecommunications (Poland)

Published in SPIE Proceedings Vol. 10325:
Optical Fibers and Their Applications 2017
Jan Dorosz; Ryszard S. Romaniuk, Editor(s)

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