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Relief Bragg reflectors inscribed on the capillary walls of solid‐core photonic crystal fibers
Author(s) -
Konstantaki Maria,
Childs Paul,
Sozzi Michele,
Pissadakis Stavros
Publication year - 2013
Publication title -
laser and photonics reviews
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.778
H-Index - 116
eISSN - 1863-8899
pISSN - 1863-8880
DOI - 10.1002/lpor.201200115
Subject(s) - materials science , photonic crystal fiber , capillary action , excimer laser , optics , fiber bragg grating , phosfos , laser , scanning electron microscope , optoelectronics , fiber , plastic optical fiber , composite material , fiber optic sensor , wavelength , physics
The inscription of relief Bragg grating reflectors on the capillary walls of a solid‐core photonic crystal fiber (PCF) using laser radiation is presented. The inscription method followed is based on the infiltration and adsorption of a thin layer of toluene on the capillaries of the PCF and the subsequent exposure of the infiltrated fiber using 248‐nm excimer laser radiation and phase mask interference. Gratings are characterized spectrally and by scanning electron microscopy while their sensing capabilities are exemplified by infiltrating them with organic solvents. Thermal studies revealed that the gratings exhibit high thermal endurance characteristics, withstanding tens of hours annealing at 950°C.