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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.|
|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:||Click here to retrieve PDF version of paper (2MB)|