Multiplexing fiber Bragg grating sensor system based on heterodyne method

Author

Yanling Xiong ; Yang Chen ; Wenlong Yang ; Qinye Xie ; Ying Wang

Author_Institution

Harbin Univ. of Sci. & Technol., Harbin, China

Volume

2

fYear

2011

fDate

22-24 Aug. 2011

Firstpage

840

Lastpage

843

Abstract

Combining MATLAB/SIMULINK modeling and the existing designs, the system focusing on heterodyne modulation was established based on the feasible analysis of demodulation by Optical Frequency Domain Reflectometry (OFDR) and Wave Division Multiplexing(WDM). The simulation system with voltage control oscillator, triangular wave generator, light intensity modulator, multiplier, adjustable fiber F-P filter and adjustable Band-Pass Filter (BPF) was built up by Frequency Modulated Continuous Wave (FMCW) technology of radar signals demodulation. And the parameters were obtained from the simulation for further experiment.

Keywords

Bragg gratings; FM radar; band-pass filters; demodulation; fibre optic sensors; reflectometry; voltage-controlled oscillators; waveform generators; wavelength division multiplexing; MATLAB-SIMULINK modeling; WDM; adjustable bandpass filter; adjustable fiber F-P filter; fiber Bragg grating sensor system multiplexing; frequency modulated continuous wave technology; heterodyne method; heterodyne modulation; light intensity modulator; optical frequency domain reflectometry; radar signals demodulation; triangular wave generator; voltage control oscillator; wave division multiplexing; Fiber gratings; Optical fiber sensors; Optical mixing; Optical reflection; Voltage measurement; Bragg grating fiber; Heterodyne division multiplexing; Optical frequency domain reflectometry;

fLanguage

English

Publisher

ieee

Conference_Titel

Strategic Technology (IFOST), 2011 6th International Forum on

Conference_Location

Harbin, Heilongjiang

Print_ISBN

978-1-4577-0398-0

Type

conf

DOI

10.1109/IFOST.2011.6021151

Filename

6021151