Title :
A laser-pumped temperature sensor using the fluorescent decay time of alexandrite
Author :
Augousti, A.T. ; Grattan, K.T.V. ; Palmer, A.W.
Author_Institution :
City University, Northampton Square, London, England
fDate :
6/1/1987 12:00:00 AM
Abstract :
In this work a simple intensity-independent fiber-optic temperature sensor using alexandrite crystal was constructed. The sensor uses the change in the characteristics of the fluorescence of the material to sense the parameter required and operates using light from an electrooptically modulated He-Ne laser at 633 nm. Microprocessor control and signal processing is used to achieve an accuracy of

C with a 3-s response.
Keywords :
Fluorescent materials/devices; Optical fiber transducers; Temperature transducers; Crystalline materials; Electrooptic devices; Electrooptic modulators; Fiber lasers; Fluorescence; Lasers and electrooptics; Optical fiber sensors; Optical materials; Sensor phenomena and characterization; Temperature sensors;
Journal_Title :
Lightwave Technology, Journal of
DOI :
10.1109/JLT.1987.1075565