Fiber-optic temperature sensor using a spectrum-modulating semiconductor etalonDescribed is a fiber-optic temperature sensor that uses a spectrum modulating SiC etalon. The spectral output of this type of sensor may be analyzed to obtain a temperature measurement which is largely independent of the transmission properties of the sensor's fiber-optic link. A highly precise laboratory spectrometer is described in detail, and this instrument is used to study the properties of this type of sensor. Also described are a number of different spectrum analyzers that are more suitable for use in a practical thermometer.
Document ID
19890022995
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Beheim, Glenn (NASA Lewis Research Center Cleveland, OH, United States)
Fritsch, Klaus (John Carroll University Cleveland, OH, United States)
Anthan, Donald J. (Cleveland State University OH, United States)