Carbon-coated fiber Fabry-Perot sensor for harsh environments

Xinlei Zhou; Wei Peng; Qingxu Yu

doi:10.1117/12.965534

7 November 2012 Carbon-coated fiber Fabry-Perot sensor for harsh environments

Xinlei Zhou, Wei Peng, Qingxu Yu

Proceedings Volume 8421, OFS2012 22nd International Conference on Optical Fiber Sensors; 8421AB (2012) https://doi.org/10.1117/12.965534
Event: OFS2012 22nd International Conference on Optical Fiber Sensor, 2012, Beijing, China

Abstract

Carbon coatings on optical sensors can protect them from being corroded by H₂ and H₂O. In this paper, a laserinduced chemical vapor deposition device is presented to grow carbon films on the fiber Fabry-Perot sensor. The scanning electron microscopy and Raman spectroscopy are used to analyze hermetic properties of the carbon coating. Experimental results demonstrated that the carbon-coated sensor exhibited a good long-term stability in a 72MPa and 300°C environment. The fluctuation of the cavity length is only 1nm during seven months after a short-term decrease.

Citation Download Citation

Xinlei Zhou, Wei Peng, and Qingxu Yu "Carbon-coated fiber Fabry-Perot sensor for harsh environments", Proc. SPIE 8421, OFS2012 22nd International Conference on Optical Fiber Sensors, 8421AB (7 November 2012); https://doi.org/10.1117/12.965534

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