A Proposal of Temperature Sensing Using a Thin-Film Bandpass Filter and Dual-Wavelength Push-Pull Reflectometry

A Proposal of Temperature Sensing Using a Thin-Film Bandpass Filter and Dual-Wavelength Push-Pull Reflectometry

A new temperature sensing system, which utilizes a thin-film bandpass filter deposited on an optical fiber end face and dual-wavelength push-pull reflectometry, is proposed. The system has the following advantages over the fiber Bragg grating sensor: it can observe the temperature in a localized sma...

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Veröffentlicht in:IEEE photonics technology letters 2008-05, Vol.20 (9), p.688-690
Hauptverfasser: Onoda, S., Tsukamoto, N., Ogino, M., Yamashita, K., Yumoto, O., Inoue, K., Komatsu, Y.
Format: Artikel
Sprache:eng
Schlagworte:
Band pass filters
Bandpass filters
Coatings
Correlators
Deposition
Detection
Fibers
Microcracks
optical fiber measurement
Optical fibers
Optical films
optical filters
Proposals
pseudonoise coding
Reflectometry
Sensor systems
Sputtering
Stripping
temperature measurement
Temperature sensors
Thin films
Transistors
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Beschreibung
Zusammenfassung:A new temperature sensing system, which utilizes a thin-film bandpass filter deposited on an optical fiber end face and dual-wavelength push-pull reflectometry, is proposed. The system has the following advantages over the fiber Bragg grating sensor: it can observe the temperature in a localized small area and it gets rid of microcrack growth caused by stripping of cover coating from a fiber. The feasibility of the system has been verified by simulation.
ISSN:1041-1135
1941-0174
DOI:10.1109/LPT.2008.920028