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

fYear

2009

fDate

24-26 Sept. 2009

Firstpage

1

Lastpage

4

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;

fLanguage

English

Publisher

ieee

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

Type

conf

DOI

10.1109/WICOM.2009.5303762

Filename

5303762