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

fYear

2007

fDate

26-31 Aug. 2007

Firstpage

1

Lastpage

2

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;

fLanguage

English

Publisher

ieee

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

Type

conf

DOI

10.1109/CLEOPR.2007.4391488

Filename

4391488