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17 October 2012 Temperature compensated microfiber Bragg gratings
Shuai Gao, Long Jin, Yang Ran, Li-Peng Sun, Bai-Ou Guan
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Proceedings Volume 8421, OFS2012 22nd International Conference on Optical Fiber Sensors; 84214T (2012) https://doi.org/10.1117/12.975000
Event: OFS2012 22nd International Conference on Optical Fiber Sensor, 2012, Beijing, China
Abstract
In this paper, temperature compensated microfiber Bragg grating (mFBG) is realized by use of a liquid with a negative thermo-optic coefficient. The effects of grating elongation and the index change of silica glass are compensated by the liquid through evanescent-field interaction. As a result, the reflective wavelength shifts by only 30 pm when the temperature varies from 15 to 60°C. The proposed method is promising due to the compactness and high flexibility of the device.
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Shuai Gao, Long Jin, Yang Ran, Li-Peng Sun, and Bai-Ou Guan "Temperature compensated microfiber Bragg gratings", Proc. SPIE 8421, OFS2012 22nd International Conference on Optical Fiber Sensors, 84214T (17 October 2012); https://doi.org/10.1117/12.975000
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KEYWORDS
Liquids
Fiber Bragg gratings
Temperature metrology
Thermal optics
Silica
Glasses
Bioalcohols
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