Purpose – The purpose of this paper is to present a review of research performed at the Communications Research Centre Canada on sensing applications of femtosecond infrared laser‐inscribed Bragg gratings. Design/methodology/approach – By using fibre Bragg gratings induced with ultrafast infrared radiation, inscription of high temperature stable sensors in standard and exotic optical waveguides is investigated for a variety of novel applications. Findings – Generally, femtosecond laser‐induced gratings are effective sensors that can be applied in situations and environments where most fibre optic sensors are not effective. Originality/value – The paper is a review of existing work already published in the literature and provides an overview of this technology to the reader.
Sensor Review – Emerald Publishing
Published: Sep 13, 2011
Keywords: Femtosecond laser‐induced gratings; Optical waveguides; Sensors; Infrared radiation; Fibre Bragg gratings; High temperature