Stable power control for optical transmission systems
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United States of America Patent
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Feb 29, 2000
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N/A
app pub date -
Oct 23, 1996
filing date -
Oct 23, 1996
priority date (Note) -
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Abstract
In an optical transmission system, an optical signal is transmitted to an optical element which is sensitive to changes in the optical power of the signal. Changes in optical power are anticipated and damped by controlling the transmitter output power, or an external damping element. For WDM systems, wavelengths can be added or removed without causing rapid changes in total power which would otherwise disturb the output of downstream optical amplifiers, and cause bit errors.
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