Silicon-Etalon Fiber-Optic Temperature Sensor
Author(s) -
Glenn M. Beheim,
Klaus Fritsch,
Joseph M. Flatico,
Massood TabibAzar
Publication year - 1990
Publication title -
proceedings of spie, the international society for optical engineering/proceedings of spie
Language(s) - English
Resource type - Conference proceedings
SCImago Journal Rank - 0.192
H-Index - 176
eISSN - 1996-756X
pISSN - 0277-786X
DOI - 10.1117/12.963069
Subject(s) - fabry–pérot interferometer , materials science , fiber optic sensor , optical fiber , silicon , cable gland , optoelectronics , optics , temperature measurement , wavelength , fiber , electrical engineering , composite material , engineering , physics , quantum mechanics
A temperature sensor is described which consists of a silicon etalon that is sputtered directly onto the end of an optical fiber. A two-layer protective cap structure is used to improve the sensor's long-term stability. The sensor's output is wavelength encoded to provide a high degree of immunity from cable and connector effects. This sensor is extremely compact and potentially inexpensive.
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