Temperature compensation fiber-optic refractive index sensor based on single-mode fiber core-offset attenuator

HuaQi Cheng; ZhenGuo Jing; Peng Wei; ChuanQi Xing

doi:10.1117/12.974803

7 November 2012 Temperature compensation fiber-optic refractive index sensor based on single-mode fiber core-offset attenuator

HuaQi Cheng, ZhenGuo Jing, Peng Wei, ChuanQi Xing

Author Affiliations +

Proceedings Volume 8421, OFS2012 22nd International Conference on Optical Fiber Sensors; 84215P (2012) https://doi.org/10.1117/12.974803
Event: OFS2012 22nd International Conference on Optical Fiber Sensor, 2012, Beijing, China

Abstract

This paper has developed a novel single-mode core-offset fiber optic sensor based on the principle of Michelson interferometer, which can be used for refractive index measurement in sugar solution while making temperature compensation to eliminate or weaken temperature sensitivity. Experimental results show that when the temperature range is from 18.1°C to 84.3°C there will be an increasing relationship between characteristic wavelength and temperature. When the sensor's sensing range is from 1.331 to 1.335, there will be a better decrease gradually relationship between characteristic wavelength and refractive index (0.0416nm/0.01R.I.U) after temperature compensation. This sensor has a simple-structure and high-sensitivity.

Citation Download Citation

HuaQi Cheng, ZhenGuo Jing, Peng Wei, and ChuanQi Xing "Temperature compensation fiber-optic refractive index sensor based on single-mode fiber core-offset attenuator", Proc. SPIE 8421, OFS2012 22nd International Conference on Optical Fiber Sensors, 84215P (7 November 2012); https://doi.org/10.1117/12.974803

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KEYWORDS

Refractive index

Fiber optics sensors

Cladding

Sensors

Glucose

Single mode fibers

Temperature metrology

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