Title :
Influence of Noises on the Smallest Detectable Temperature in the Fiber Bragg Grating Demodulation System
Author :
Zhang, Liping ; Li, Yongqian
Author_Institution :
Dept. of Electron. & Commun. Eng., North China Electr. Power Univ., Baoding, China
Abstract :
Using statistical optics method, we deduce and establish the theoretical formula of the smallest detectable temperature in the wavelength demodulation system based on a tunable fiber F-P filter. The simulation results show that the smallest detectable temperature is mostly influenced by the shot noise and thermal noise of the photo-detector when the light source with low intensity and mostly influenced by the light source noise when the light source with high intensity.
Keywords :
Fabry-Perot interferometers; fibre optic sensors; optical fibre filters; optical noise; photodetectors; shot noise; thermal noise; fiber Bragg grating; photodetector; shot noise; statistical optics; thermal noise; tunable fiber Fabry-Perot filter; wavelength demodulation system; Bragg gratings; Demodulation; Fabry-Perot; Fiber gratings; Light sources; Optical fiber filters; Optical fiber sensors; Optical noise; Sensor systems; Temperature sensors;
Conference_Titel :
Wireless Communications, Networking and Mobile Computing, 2009. WiCom '09. 5th International Conference on
Conference_Location :
Beijing
Print_ISBN :
978-1-4244-3692-7
Electronic_ISBN :
978-1-4244-3693-4
DOI :
10.1109/WICOM.2009.5303762
