Specialty optical-fibre sensors enable real-time contact measurement of multiple physiological parameters: towards all-fibre wearable devices

The real-time measurements of surface physiological parameters, such as body temperature, cardiorespiratory rates, and sweat, is of increasing importance in healthcare.Optical fibres can offer an effective solution for contact sensing, as they enable multi-parameter and multi-point sensing while maintaining a compact form factor.Recent advances using chalcogenide and other specialty fibres represent a substantial step towards all-fibre wearable devices.