Abstract
An optical fiber sensor based on a tapered-FBG coated with 150 nm-thick Pd film is proposed for hydrogen pressure detection. The FBG was written in a 50 µm-diameter tapered fiber by DUV femtosecond laser technology. A second FBG was inscribed in the untapered fiber region for temperature compensation. The sensing head was able to detect the variation of hydrogen pressure in the range 0–780 kPa and a maximum sensitivity of 0.15 pm/kPa was achieved.
© 2012 Optical Society of America
PDF ArticleMore Like This
P. Vengal Rao, K. Srimannarayana, M. Sai Shankar, P. Kishore, and S. Ravi Prasad
TPo.20 International Conference on Fibre Optics and Photonics (Photonics) 2012
Robin Elliott, Timothy Lee, Martynas Beresna, Morten Ibsen, and Gilberto Brambilla
ch_p_13 The European Conference on Lasers and Electro-Optics (CLEO/Europe) 2023
A. Bueno, K. Chah, D. Kinet, P. Mégret, and C. Caucheteur
BW4D.3 Bragg Gratings, Photosensitivity, and Poling in Glass Waveguides (BGPP) 2014