3D microstructure of optical fiber based on femtosecond laser and  temperature characteristic

Qiancheng Zhao; Yutang Dai; Tao Li; Bin Liu; Guanglin Yin

doi:10.1117/12.2067987

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6 August 2014 3D microstructure of optical fiber based on femtosecond laser and temperature characteristic

Qiancheng Zhao, Yutang Dai, Tao Li, Bin Liu, Guanglin Yin

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Proceedings Volume 9281, 7th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Advanced Optical Manufacturing Technologies; 92811V (2014) https://doi.org/10.1117/12.2067987
Event: 7th International Symposium on Advanced Optical Manufacturing and Testing Technologies (AOMATT 2014), 2014, Harbin, China

Abstract

Different novel kinds of 3D microstructure manufactured in the cladding of FBG are proposed. Femtosecond laser and special rotary are used to fabricate microstructure such as single thread, double thread and annulus. The thread pitch is 60μm, 80μm controlled by feed and rotary speed. In addition, a thickness of 300nm copper film is coated in the microgrooves by magnetron sputtering technology. Temperature experiment has also been set up and done. Experiment result shows that the FBG sensor with double thread of 80μm is the most sensitive one responding to temperature change. It is approximately five times higher than the standard FBG sensor .This new type of FBG sensor shows great prospect in temperature sensing.

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Qiancheng Zhao, Yutang Dai, Tao Li, Bin Liu, and Guanglin Yin "3D microstructure of optical fiber based on femtosecond laser and temperature characteristic", Proc. SPIE 9281, 7th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Advanced Optical Manufacturing Technologies, 92811V (6 August 2014); https://doi.org/10.1117/12.2067987

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