Method and system for managing optical subcarrier reception
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United States of America Patent
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Nov 30, 1999
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app pub date -
Sep 30, 1997
filing date -
Sep 30, 1997
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Abstract
A method and apparatus are provided for high signal-to-noise ratio (SNR) optical subcarrier management and reception in a communication network. In a multiple-wavelength optical communications link, ancillary signals that are conveyed by low-level intensity-modulated subcarriers are received with increased sensitivity in the subcarrier channel of the network. An increased SNR is accomplished by passing the same ancillary signal along all the carriers and by combining the received signals at a summing amplifier in the electrical domain.
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