Ultrahigh Temperature Sensor

A fiber-optic sensor element is now available for applications requiring accurate measurements to 1000°C. This product is based on Chiral Photonics’ chiral grating, fabricated by a twisting fiber as it is passed through a miniature heat zone to produce a distinct dip in the transmission spectrum. The spectral position of the dip in this chiral fiber changes with temperature, allowing it to be used as a temperature sensor.