Vol. 35, Issue 2, pp. 277-282

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  2. Optica Applicata Vol. 35, Issue 2, pp. 277-282 (2005)
Vol. 35 Issue 2 pp. 277-282

Package for fiber Bragg gratings (FBG) and a comparative study on their polarization mode dispersion (PMD) at varying temperature

Tigang NING, Li PEI, Yan LIU, Zhongwei TAN, Qi WANG, Jingjing ZHENG, Shuisheng JIAN

Keywords

optical fiber communication, fiber Bragg grating, negative thermal-expansion material, temperature-compensated package, PMD

Abstract

A temperature-compensated material of fiber Bragg grating (FBG), which has negative thermal-expansion coefficient has been presented. The temperature coefficient of FBGs’ center wavelength is less than 0.0005 nm/°C after three-layer-structure temperature-compensated package under tension. For the first time, PMD of FBG with and without temperature compensation has been detailedly studied and measured from –20 to 60°C. The measured result shows that the PMD changes a little at varying temperature, which means that the package did not affect the PMD characteristic of FBG.

Vol. 35
Issue 2
pp. 277-282

0.06 MB
OPTICA APPLICATA - a quarterly of the Wrocław University of Science and Technology, Faculty of Fundamental Problems of Technology