Device and method for monitoring optical signals with increased dynamic range
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United States of America Patent
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N/A
Issued Date -
Jan 9, 2003
app pub date -
Jun 3, 2002
filing date -
Jun 1, 2001
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
An optical monitor device and method are disclosed for measuring characteristics of optical signals in an optical communications network. The optical monitor device may include an array of optical detector elements on which the optical signals, each having a different wavelength, may be substantially concurrently imaged, and a processing element. The array of optical detector elements may be controlled so that for each optical signal, a plurality of measurements may be obtained, with each measurement occurring at a distinct optical sensitivity level. The processing element may select, for each optical signal, the measurement providing the most accurate measurement of the optical signal. In this way, the dynamic range of the optical monitor device is increased relative to the dynamic range of the array of optical detector elements.
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