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SENSOR MATRICES FOR MULTIPLEXING WITH TIME-SEPARATION (RTM) AND MULTIPLEXING WITH SEPARATION BY WAVE LENGTH (MRDV)
SENSOR MATRICES FOR MULTIPLEXING WITH TIME-SEPARATION (RTM) AND MULTIPLEXING WITH SEPARATION BY WAVE LENGTH (MRDV)
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机译:带时间分隔(RTM)的多路复用和具有波长(MRDV)的多路复用的传感器矩阵
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摘要
Methods and apparatus for interrogating sets of optical elements having characteristic wavelengths spanning a sweep range while avoiding overlapping reflections from the different sets when performing a wavelength sweep are provided. One example method generally includes introducing a pulse of light, by an optical source, into an optical waveguide to interrogate at least first and second sets of optical elements, wherein the optical elements within each set have different characteristic wavelengths and wherein the first and second sets are separated in time such that a first time window over which light is reflected from the optical elements in the first set and reaches a receiver does not overlap with a second time window over which light is reflected from the optical elements in the second set and reaches the receiver; and processing the reflected light to determine one or more parameters corresponding to the optical elements.
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