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In this work, we present long period gratings (LPGs) in two different Fluorine-doped fibers realized by electric arc discharge (EAD) technique. Firstly, we optimized the EAD fabrication procedure for standard Ge-doped fibers where we are able to fabricate relatively short LPGs with deep attenuation bands (up to 32 dB) and trivial power losses. Successively, for the first time to the best of our knowledge, we produced LPGs in F-doped fibers with maximum attenuation band depths in range 25-30 dB and trivial power losses. We also investigated the sensitivity of LPGs fabricated in such F-doped fibers, with surrounding refractive index (SRI) and temperature changes, and compared the results with those of LPGs fabricated in standard fiber. We found that SRI response of LPGs in F-doped fibers is significantly higher than in standard fiber and it strongly depends on the type of F-doped fiber considered, whereas they …
International Society for Optics and Photonics
Publication date: 
30 May 2016

Rajeev Ranjan, Flavio Esposito, Agostino Iadicicco, Andrei Stăncălie, Dan Sporea, Stefania Campopiano

Biblio References: 
Volume: 9916 Pages: 991622
Sixth European Workshop on Optical Fibre Sensors