Title :
The temperature sensitivity of Sagnac loop interferometer based on polarization maintaining side-hole fiber
Author :
Moon, Dae Seung ; Kim, Bok Hyeon ; Sun, Guoyong ; Han, Young-Geun ; Han, Won-Taek ; Chung, Youngjoo
Author_Institution :
Dept. of Inf. & Commun., Gwangju Inst. of Sci. & Technol., Buk-gu
Abstract :
The temperature sensitivity of modal birefringence (dB/dT) of different types of polarization-maintaining fibers with side holes was measured using Sagnac loop interferometer. The thermal expansion coefficient can be varied by controlling the amount of germanium doped in the core region. Using this method dB/dT could be made higher (~10-7/degC) than that of standard PMFs (~10-8/degC) or comparable to that of standard PCFs (~10-9/degC).
Keywords :
Sagnac interferometers; birefringence; fibre optic sensors; optical fibre polarisation; temperature sensors; thermal expansion; Sagnac loop interferometer; modal birefringence; polarization maintaining side-hole fiber; temperature sensitivity; thermal expansion coefficient; Birefringence; Germanium; Optical fiber communication; Optical fiber couplers; Optical fiber polarization; Sagnac interferometers; Shape; Temperature measurement; Temperature sensors; Thermal expansion;
Conference_Titel :
Lasers and Electro-Optics - Pacific Rim, 2007. CLEO/Pacific Rim 2007. Conference on
Conference_Location :
Seoul
Print_ISBN :
978-1-4244-1173-3
Electronic_ISBN :
978-1-4244-1174-0
DOI :
10.1109/CLEOPR.2007.4391488
