Center for Innovative Technology

Shari Feth

Kent A Murphy

Anbo Wang

Richard O Claus

Ashish M Vengsarkar

Sridhar Gollapudi

An optical interferometer comprises a multi-mode sapphire fiber as a high temperature sensor. One end of the sapphire fiber is coupled to a silica fiber and, in turn, to the sapphire fiber. The sapphire fiber sensor produces reference and sensor reflections that produce optical fringes at the output of a detector coupled to the silica optical fiber via an opto-coupler. The optical fringes are related to displacements of the sensor which, in turn, can provide an indirect measurement of pressure, strain or temperature of the surface.

Growing community of inventors

Blacksburg, VA, United States of America

Shari Feth