Low Cost Directly Modulated TWDM Burst Mode Laser
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United States of America Patent
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Issued Date -
Oct 22, 2015
app pub date -
Apr 22, 2014
filing date -
Apr 22, 2014
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A directly modulated multi-electrode DFB laser is used to transmit information in a TWDM environment where the output power and the output wavelength of the laser output signal are determined by the ratios of bias currents simultaneously applied to the electrodes of the laser by a control circuit. The total amount of current applied to the electrodes is kept to a constant value to maintain the temperature of the laser constant. The electrodes of the DFB laser are positioned so as not to experience any thermal coupling between them or with any other component of the DFB laser.
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