Closed loop optical modulation amplitude control
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United States of America Patent
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Oct 1, 2013
Grant Date -
Jun 6, 2013
app pub date -
Dec 2, 2011
filing date -
Dec 2, 2011
priority date (Note) -
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Abstract
Systems and methods are provided for an optical modulation feedback circuit. The feedback circuit includes a low frequency comparison circuit configured to receive a monitoring signal generated by an optical detector, the monitoring signal being proportional to an amount of light generated by an optical transmission device that transmits based on a data signal that is received by an optical driver. The comparison circuit is further configured to generate a modulation control feedback signal that is transmitted to the optical driver based on a comparison of a low frequency component of the monitoring signal and a low frequency component of the data signal.
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