Sensitivity Characteristics of Long-Period Gratings Written with a CO2 Laser in Fiber with Parabolic-Index Cladding

0346406 - ÚFE 2011 RIV US eng J - Článek v odborném periodiku
Todorov, Filip - Chomát, Miroslav - Berková, Daniela - Čtyroký, Jiří - Matějec, Vlastimil - Kašík, Ivan
Sensitivity Characteristics of Long-Period Gratings Written with a CO2 Laser in Fiber with Parabolic-Index Cladding.
Sensor Letters. Roč. 7, č. 5 (2009), s. 979-983. ISSN 1546-198X.
[6th Maghreb-Europe Meeting on Materials and Their Applications for Devices and Physical, Chemical and Biological Sensors. Rabat, 30.10.2008-01.11.2008]
Grant CEP: GA ČR GA102/06/1851
Výzkumný záměr: CEZ:AV0Z20670512
Klíčová slova: bend sensing * long-period gratings * temperature sensing
Kód oboru RIV: JB - Senzory, čidla, měření a regulace
Impakt faktor: 0.626, rok: 2009

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 parabolic-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.
Trvalý link: http://hdl.handle.net/11104/0187444