Improving the electric field sensing capabilities of the long-period fiber grating coated with a liquid crystal layer

Aleksandra Czapla , Wojtek J. Bock , Tomasz Woliński , P. Mikulic , E Nowinowski-Kruszelnicki , R. Dabrowski

Abstract

The hybrid liquid crystal long-period fiber grating structure presented here uses the 1702 liquid crystal as a thin layer on the bare longperiod fiber grating. To achieve the highest long-period fiber grating sensitivity to the liquid crystal layer presence, a UV-induced host grating, with a relatively short period of 226.8 um, was chosen. This design makes it possible to couple light from the propagating core mode to a cladding mode at a wavelength near the phase-matching turning point. This phenomenon is exploited here for the first time to measure the thermal and electric field responses of the liquid crystal long-period fiber grating structure. All experimental results achieved in this work are supported by theoretical analysis. © 2016 Optical Society of America.
Author Aleksandra Czapla
Aleksandra Czapla,,
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, Wojtek J. Bock
Wojtek J. Bock,,
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, Tomasz Woliński ZOiF
Tomasz Woliński,,
- Optics and Photonics Division
, P. Mikulic
P. Mikulic,,
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, E Nowinowski-Kruszelnicki
E Nowinowski-Kruszelnicki,,
-
, R. Dabrowski
R. Dabrowski,,
-
Journal seriesOptics Express, ISSN 1094-4087 []
Issue year2016
Vol24
No5
Pages5662-5673
Publication size in sheets0.55
Keywords in EnglishCrystal structure; Electric fields; Fibers; Liquid crystals; Liquids; Phase matching, Cladding modes; Electric field response; Electric field sensing; Liquid crystal layers; Long period fiber grating; Phase-matching turning points; Short periods; Thin layers, Diffraction gratings
DOIDOI:10.1364/OE.24.005662
URL https://www.scopus.com/inward/record.uri?eid=2-s2.0-84962427810&partnerID=40&md5=251ffcf1ccd93ee1afa0a33c5b9f9e92
Languageen angielski
Score (nominal)45
ScoreMinisterial score = 40.0, 28-11-2017, ArticleFromJournal
Ministerial score (2013-2016) = 45.0, 28-11-2017, ArticleFromJournal
Publication indicators WoS Impact Factor: 2016 = 3.307 (2) - 2016=3.436 (5)
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