High resolution short response time fiber-optic temperature sensorSinanović, Nermin (Avtor) Pevec, Simon (Avtor) Njegovec, Matej (Avtor) Budinski, Vedran (Avtor) Đonlagić, Denis (Avtor) Fabry-Perothigh-resolution temperature sensormicromachiningmicrowire optic sensoroptical fibersshort response timeThis article presents an all-silica microwire optical sensor designed for both fast response time and high-resolution temperature detection. The sensor consists of a thin optical microwire created at the tip of an optical fiber, configured as a temperature sensitive Fabry–Perot interferometer (FPI). For the purposes of achieving rapid response times, the sensing section of the sensor has a diameter of 11 µm. Experimental bench tests were set up to evaluate the sensor’s static and dynamic performance. The results indicate a sensor system resolution of about 5 mK and demonstrate a bandwidth of 38 Hz that corresponds to a response time of 4 ms in still air. The sensor’s functionality is shown through a basic periodic gas compression method detecting small temperature fluctuations. In addition, the sensor was demonstrated for operation up to 600 ◦C.20252025-02-12 14:41:09Neznano91837sl© 2024 The Authors