Poeggel, S,Duraibabu, D,Lacraz, A,Kalli, K,Tosi, D,Leen, G,Lewis, E,Kalinowski, HJ,Fabris, JL,Bock, WJ

24TH INTERNATIONAL CONFERENCE ON OPTICAL FIBRE SENSORS

Multi FBG Femtosecond laser inscription in FPI based pressure sensors for temperature distribution

2015

January

Published

1

()

We present in this paper an optical fiber pressure and temperature sensor (OFPTS) with multi Fibre Bragg Grating (FBG) array. The sensor based on an extrinsic Fabry Perot interferometer and is fabricated from silica glass. A femtosecond laser (FSL) was used to inscribe multiple FBGs proximitely close to the diaphragm, parallel to each other. This concepts allows a chain of FBGs with miniature active length which can be a significant important tool for medical application, like radio frequency ablation (RFA) cancer treatment.

10.1117/12.2190008