Systems and methods for reducing thermal tails on optical time domain reflectometer (OTDR) measurements
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United States of America Patent
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Nov 17, 2015
Grant Date -
Sep 26, 2013
app pub date -
Mar 6, 2013
filing date -
Mar 6, 2012
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Abstract
An optical communication system has a power dissipating element that is thermally coupled to an optical transmitter. The currents supplied to the transmitter and the power dissipating element are controlled such that the sum of such currents is constant. Accordingly, temperature fluctuations in the transmitter due to patterns in the transmitted data are prevented or at least reduced, thereby reducing thermal tails on measurements. In one exemplary embodiment, a light source is used as the power dissipating element, and the output of such light source is beneficially used to probe another optical fiber or to enhance the OTDR performance or analysis.
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