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mods:
  schema location: http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
  title info:
    title: Multiplexed fiber Fabry-Perot temperature sensor system using white light interferometry
  name:
    name part: Chen, Yichao
    name part: 1966-
    role:
      role term: creator
  type of resource: text
  genre: bibliography
  origin info:
    place:
      place term: xx
    date issued: 2002
    issuance: monographic
  language:
    language term: eng
  physical description:
    form: print
    extent: xiii, 80 leaves : illustrations ; 28 cm.
  abstract: The object of this research is to develop a new technique for monitoring the optical path difference (OPD) in an optical fiber interferometer that provides both high accuracy and high dynamic range. The technique is applied in the sensing of temperature and to the multiplexing of sensors deployed along the length of a single mode fiber. A fiber Fabry-Perot interferometer (FFPI) is used as the sensing head and a bulk Michelson interferometer as the optical processing interferometer, with a superluminescent diode (SLD) as the light source and a motor-driven translation stage for mirror scanning. A second interferometer with a distributed feedback laser (DFB) as the light source is used to monitor and correct for mechanical irregularities in the stage motion. Fringes from the DFB interferometer serve as a precise metric for determining the difference in OPD of the sensing interferometer vs. that of a reference FFPI that is held at ambient temperature. The measured temperature resolution of 0.0135°C for a FFPI sensor of 10 mm cavity length corresponds to an OPD resolution of 0.0025 fringes. The system has been characterized over a temperature range from room temperature to 810°C. Coherence multiplexing of three sensors of different optical length has also been demonstrated. The OPD monitoring technique and multiplexing technique introduced here can be used for other measurands (e.g., strain, pressure) and for other interferometric fiber sensor configurations.
  note: by Yichao Chen.
  note: Vita.
  note: "Major Subject: Electrical Engineering".
  note: Issued also on microfiche from University Microfilm Inc.
  note: Ph. D. Texas A&M University 2002.
  note: Includes bibliographical references (leaves 67-71).
  subject:
    topic: Major electrical engineering
  identifier: 30-50622 UMI
  identifier: http://proxy.library.tamu.edu/login
  related item:
    location:
      url: http://proxy.library.tamu.edu/login
  record info:
    record content source: TXA
    record creation date: 030217
    record change date: 20190325103350.0
    record identifier: in00001731657