Arris Enterprises LLC

Arris Group, Inc.

Broadband Royalty Corporation

Irl N Duling

Sandeep T Vohra

Paul J Matthews

An arrangement is provided for transporting information from a central information distribution center (CIDC) to locations where such information is intended. Upon receiving a request for narrowcast information to be delivered to a node associated with a head end, the CIDC selects the requested information, generates an optical signal encoded with the requested information using information channels dedicated to narrowcast information transport for the node, and sends the optical signal to the head end via an optical fiber. When the head end receives the optical signal, the narrowcast information transport channels dedicated to the node are translated into subcarriers acceptable to the node before the requested narrowcast information is forwarded to the node.

Media stream distribution system

Agile block downconversion for the distribution of narrowcast services

Arrangements are provided for an amplitude balanced optical amplifier. A combination of an optical preamplifier and a gain/loss variation modification device (VMD) is employed. The gain/loss VMD compensates the gain variation across different wavelength channels introduced by the preamplifier. The gain/loss VMD operates based on a gain/loss profile that is complementary to that of the preamplifier. More than one amplifier may be deployed. In addition, feedback control may be applied to either the preamplifier or the gain/loss VMD to dynamically control the performance.

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Lancaster, PA, United States of America

Irl N Duling