Fiber-optic temperature sensing with ultrathin silicon étalons
Optics Letters Vol. 13, Issue 9, pp. 782-784 (1988) •doi: 10.1364/OL.13.000782

We report fiber-optic temperature sensing with an optically thin silicon étalon. A simple fabrication technique by direct deposition of silicon onto the fiber tip, a wide range of operating wavelengths from 1500 nm down to 800 nm, and the applicability for temperature sensing well above 400°C are the most prominent features of the silicon étalon sensor.