Sensitivity characteristics of long-period gratings written with a CO2 laser in fiber with index cladding

0346075 - ÚFE 2011 MA eng C - Conference Paper (international conference)
Berková, Daniela - Chomát, Miroslav - Todorov, Filip (ed.) - Čtyroký, Jiří - Matějec, Vlastimil - Kašík, Ivan
Sensitivity characteristics of long-period gratings written with a CO2 laser in fiber with index cladding.
MADICA 2008. Rabat: L´Enset, 2008, B25-B25.
[Les 6emes Journees Maghreb-Europe Madica 2008. RABAT (MA), 30.10.2008-31.10.2008]
R&D Projects: GA ČR GA102/06/1851
Institutional research plan: CEZ:AV0Z20670512
Keywords : long-period gratings * single-mode fiber
Subject RIV: JB - Sensors, Measurment, Regulation

Long-period gratings (LPGs) in single-mode opt. fibers are sensitive to temperature, bending and index of refraction. We report sensing characteristics of LPGs written with a CO2 laser in a single-mode fiber with index cladding. for an LPG with a period of 214 m, attenuation band 1550 nm. The responses were investigated for λ 1.33, 1.46 and 1.50. The LPG´s sensitivity to temp. was comparable to that of LPGs in conventional fibers, its sensitivities both to bending and external λ are very low.
Permanent Link: http://hdl.handle.net/11104/0187191