Tapered and linearly chirped fiber Bragg gratings with co-directional and counter-directional resultant chirps

Tomasz Osuch

Abstract

A method of spectral width tailoring of tapered fiber Bragg gratings is theoretically analyzed and experimentally verified. This concept is based on inscription grating structures in which synthesis of chirps comes from both taper profile and a linearly chirped phase mask used for grating inscription. It is shown that under UV exposure and depending on the orientation of the optical fiber taper relative to the variable-pitch phase mask, tapered and linearly chirped fiber Bragg gratings (TCFBG) with resultant co-directional or counter-directional chirps are achieved. Thus, both effects, those of reduction and enhancement of the grating chirp, as well as their influence on the grating spectral response, are presented. In particular, using the above approach TCFBG with significantly narrowed spectral width are shown. Moreover, fused tapered chirped FBG with relatively large waist diameter are shown having broad spectrum, something that prior to now was not attainable using previously developed techniques.
Author Tomasz Osuch ISE
Tomasz Osuch,,
- The Institute of Electronic Systems
Journal seriesOptics Communications, ISSN 0030-4018
Issue year2016
Vol366
Pages194-199
Publication size in sheets0.5
Keywords in EnglishFiber Bragg grating (FBG); Fiber optics component; Fiber optics sensor; Taper; Chirp
DOIDOI:10.1016/j.optcom.2015.12.053
URL http://www.sciencedirect.com/science/article/pii/S0030401815303874
Languageen angielski
Score (nominal)25
ScoreMinisterial score = 25.0, 27-03-2017, ArticleFromJournal
Ministerial score (2013-2016) = 25.0, 27-03-2017, ArticleFromJournal
Publication indicators WoS Impact Factor: 2016 = 1.588 (2) - 2016=1.448 (5)
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