Temperature insensitive packaging of FBG based on a flat diaphragm and an L-shaped lever

Wentao Zhang; Yuliang Liu; Fang Li

doi:10.1117/12.803548

11 November 2008 Temperature insensitive packaging of FBG based on a flat diaphragm and an L-shaped lever

Wentao Zhang, Yuliang Liu, Fang Li

Proceedings Volume 7134, Passive Components and Fiber-based Devices V; 71340M (2008) https://doi.org/10.1117/12.803548
Event: Asia-Pacific Optical Communications, 2008, Hangzhou, China

Abstract

A fiber Bragg grating (FBG) temperature insensitive packaging scheme based on a flat diaphragm and an L shaped lever is presented. The curve where the L shaped lever contacts the diaphragm is a segment of an Archimedes spiral, which is used to reduce the temperature responsivity. Because the thermal expansion coefficient of the quartz-glass L shaped lever and the steel sensor shell is different, the temperature effect is compensated for by optimizing the dimension parameters. Theoretical analysis is presented, and the experimental results show that a low temperature responsivity of 2.8pm/°C are achieved.

Citation Download Citation

Wentao Zhang, Yuliang Liu, and Fang Li "Temperature insensitive packaging of FBG based on a flat diaphragm and an L-shaped lever", Proc. SPIE 7134, Passive Components and Fiber-based Devices V, 71340M (11 November 2008); https://doi.org/10.1117/12.803548

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