AN OPTICAL TEMPERATURE SENSOR

摘要

The present disclosure provides an optical sensor that comprises an optical waveguide. The optical waveguide has a first portion that comprises an optical material that is arranged such that, when the material is exposed to suitable electromagnetic radiation (EMR), the optical material absorbs at least a portion of the suitable EMR and emits emission EMR and a property of the emission EMR is dependent on a temperature of the optical material. The optical waveguide further comprises a second portion for guiding the emission EMR from the first portion. The optical sensor is arranged such that a temperature of only the first portion affects the property of the emission EMR.