Coarse WDM Networking of Self-Referenced Fiber-Optic Intensity Sensors with Reconfigurable Characteristics Articles uri icon

publication date

  • March 2010

start page

  • 4396

end page

  • 4410

issue

  • 5

volume

  • 18

international standard serial number (ISSN)

  • 1094-4087

abstract

  • A CWDM network operating in reflective configuration for multiplexing remote Radio-Frequency (RF) self-referenced fiber-optic intensity sensors is analyzed and experimentally investigated. In the described
    approach, the use of fiber Bragg gratings as spectral selective mirrors
    allows to implement delay lines in the electrical domain, achieving more
    compact sensor-heads and easy-reconfigurable sensing points. Two
    measurement parameters for the sensing heads are defined and
    comparatively studied in terms of design parameters, linearity,
    sensitivity and resolution. The proposed sensor configuration is modeled
    following the Z-transform formalism, which permits an easy analysis of
    the system frequency response. Experimental results are presented,
    showing the characterization of the network performance and considering
    the properties of sensor self-referencing as well as sensor crosstalk.