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Publication Citation: Uncertainty analysis for a high-spatial resolution single-mode fiber-optic distributed temperature sensor

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Author(s): Shellee D. Dyer; Michael Tanner; Burm Baek; Robert Hadfield; Sae Woo Nam;
Title: Uncertainty analysis for a high-spatial resolution single-mode fiber-optic distributed temperature sensor
Published: November 17, 2011
Abstract: We demonstrate a high-accuracy distributed fiber optic temperature sensor using superconducting nanowire single-photon detectors and single photon counting techniques. Our demonstration uses inexpensive single-mode fiber at standard telecommunications wavelengths as the sensing fiber, which enables extremely low-loss experiments and compatibility with existing fiber networks. We show that the uncertainty of the temperature measurement decreases with longer integration periods, and that temperature uncertainty on the order of 3 K is possible with integration period as small as 60 seconds. Also, we show that the measurement exhibits unwanted polarization sensitivity, which can be reduced with a polarization diversity receiver.
Citation: Optics Express
Volume: 10
Issue: 99
Pages: pp. 201110-1 - 201110-3
Keywords: Low light level detectors; Fiber optics sensors; Optical time domain reflectometry; Raman effect
Research Areas: Physics, Single Photon Detectors
PDF version: PDF Document Click here to retrieve PDF version of paper (2MB)