Research on glass ceramics with negative coefficient of thermal expansion used as fiber Bragg grating substrate

Lijun Kang; Tong Liu; Zhimei Su; Yu'e Kong

doi:10.1117/12.520427

12 May 2004 Research on glass ceramics with negative coefficient of thermal expansion used as fiber Bragg grating substrate

Lijun Kang, Tong Liu, Zhimei Su, Yu'e Kong

Author Affiliations +

Proceedings Volume 5280, Materials, Active Devices, and Optical Amplifiers; (2004) https://doi.org/10.1117/12.520427
Event: Asia-Pacific Optical and Wireless Communications, 2003, Wuhan, China

Abstract

The β-eucryptite glass ceramics with negative coefficient of thermal expansion (CTE) is studied in this paper. And the coefficient of thermal expansion, the crystal phases and the structure are researched by XRD and SEM. The β-eucryptite glass ceramics with negative CTE is produced by glass crystallization method, and whose negative CTE of -103.7×10^-7/°C (from room temperature to 200°C) is obtained, which can be used as fiber Bragg grating (FBG) substrate. The substrate shrinks with a rise in temperature which compensates for the Bragg wavelength shift with temperature. It can be confirmed that β-eucryptite glass ceramics have suitable thermal expansion characteristics for FBG.

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Lijun Kang, Tong Liu, Zhimei Su, and Yu'e Kong "Research on glass ceramics with negative coefficient of thermal expansion used as fiber Bragg grating substrate", Proc. SPIE 5280, Materials, Active Devices, and Optical Amplifiers, (12 May 2004); https://doi.org/10.1117/12.520427

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