Method and apparatus for maintaining a pre-determined ratio of a pilot tone power and a mean optical output power of an optical signal

Method and apparatus for maintaining a pre-determined ratio of a pilot tone power and a mean optical output power of an optical signal

Methods and apparatus for maintaining a pre-determined ratio of a pilot tone power and a total mean optical power of an optical signal are provided. One apparatus includes an optical source coupled to provide an optical signal in response to a DC bias and an AC bias corresponding to a pilot tone sig...

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Hauptverfasser: Carrick, John C, Brorson, Stuart D, Frankfort, Eric J, Talmadge, Paul C, Holmstrom, Roger P
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Sprache:eng
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creator Carrick, John C
Brorson, Stuart D
Frankfort, Eric J
Talmadge, Paul C
Holmstrom, Roger P
description Methods and apparatus for maintaining a pre-determined ratio of a pilot tone power and a total mean optical power of an optical signal are provided. One apparatus includes an optical source coupled to provide an optical signal in response to a DC bias and an AC bias corresponding to a pilot tone signal. A processor is coupled to compute each of an AC component and a DC component of the optical signal from the same digitally sampled signal. A feedback control is coupled to vary at least one of the DC bias and the AC bias in accordance with a difference between a pre-determined value and a ratio of the AC and DC components.
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title Method and apparatus for maintaining a pre-determined ratio of a pilot tone power and a mean optical output power of an optical signal
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