Title :
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
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;
Conference_Titel :
Strategic Technology (IFOST), 2011 6th International Forum on
Conference_Location :
Harbin, Heilongjiang
Print_ISBN :
978-1-4577-0398-0
DOI :
10.1109/IFOST.2011.6021151
