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Proceedings Paper

Sensitivity analysis of TiO2 coated fibre Bragg grating sensor for far infrared detection of chemicals
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Paper Abstract

In this paper, sensitivity analysis has been carried out of TiO2 coated fiber Bragg grating (FBG) sensor for chemical detection. FBG has been fabricated by Cu-vapour laser based second harmonic generation technique. Then TiO2 is coated in home on FBG sensing head by targeting the 99.99% pure TiO2 material by electron beam gun evaporation system. The thickness of TiO2 has been numerically optimized irrespective of FBG design parameters, before depositing the material on FBG sensing head. It has been found that the proposed sensor is quite able to sense a minute change of adulteration in chemical with an accuracy of more than 0.01 ppm. After developing and testing of the sensor, the fieldwork will be decided at Indian coal mines for their possible deployment in coal fields.

Paper Details

Date Published: 20 February 2020
PDF: 6 pages
Proc. SPIE 11233, Optical Fibers and Sensors for Medical Diagnostics and Treatment Applications XX, 1123306 (20 February 2020); doi: 10.1117/12.2542908
Show Author Affiliations
Sanjeev Kumar Raghuwanshi, Indian Institute of Technology (Indian School of Mines), Dhanbad (India)
Yadvendra Singh, Indian Institute of Technology (Indian School of Mines), Dhanbad (India)
Azhar Shadab, Indian Institute of Technology (Indian School of Mines), Dhanbad (India)
Purnendu Shekhar Pandey, Indian Institute of Technology (Indian School of Mines), Dhanbad (India)
Om Prakash, Raja Ramanna Ctr. for Advanced Technology (India)
Pankaj Kumar Saini, Raja Ramanna Ctr. for Advanced Technology (India)


Published in SPIE Proceedings Vol. 11233:
Optical Fibers and Sensors for Medical Diagnostics and Treatment Applications XX
Israel Gannot, Editor(s)

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