Irl N Duling

7196840, Mar 27, 2007

Nov 25, 2002

10/303050

Irl N. Duling - Lancaster PA, US
Sandeep T. Vohra - Ellicott City MD, US
Paul J. Matthews - Ellicott City MD, US

Broadband Royalty Corporation - Wilmington DE

H01S 4/00
H04B 10/12

359337, 359333

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.

8032016, Oct 4, 2011

Feb 13, 2003

10/365619

Irl N. Duling - Lancaster PA, US
Sandeep T. Vohra - Ellicott City MD, US
Paul J. Matthews - Ellicott city MD, US

ARRIS Group, Inc. - Suwanee GA

H04J 14/00

396 72, 398169, 398 59, 398 60, 398 68, 398 66, 725105, 725106, 725125, 725127, 725129, 370352, 370392, 370389, 370465

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.

20030077032, Apr 24, 2003

Oct 9, 2002

10/267030

Irl Duling - Lancaster PA, US

G02B006/28
G02B006/26
H04B010/12
H01S003/00

385/024000, 359/173000, 359/334000, 385/027000

An optical communication system includes an optical transmission line with a pump laser port, a transmitter in communication with a multilevel coded electrical input signal and in communication with the optical transmission line, and a pump laser optically connected to the pump laser port. In the optical communication system, the optical transmission line and the pump laser are adapted to act in cooperation to amplify an optical signal traveling through the optical transmission line over at least a portion of a length of the transmission line.

20030079233, Apr 24, 2003

Oct 9, 2002

10/266930

Paul Matthews - Ellicott City MD, US
Paul Biernacki - Fairfax VA, US
Irl Duling - Lancaster PA, US

H04N007/173
H04N007/16

725/129000, 725/117000, 725/147000, 725/118000

An arrangement is provided for consolidating equipment, services, and information and for distributing information from a consolidated information distribution center (CIDC) to a plurality of head ends using spectrally efficient transport. The CIDC generates an optical signal encoded with information of multiple channels aggregated through a multi-level encoding scheme and sends the optical signal to a plurality of head ends via an optical fiber. When a head end receives the optical signal, it decodes the optical signal in multiple stages to produce information of multiple data streams, from which desired data streams are selected.

20030128718, Jul 10, 2003

Dec 20, 2002

10/267045

Paul Matthews - Ellicott City MD, US
Paul Biernacki - Fairfax VA, US
Irl Duling - Lancaster PA, US

H04J001/00
H04J003/04

370/480000

An arrangement is provided for switching and routing large bandwidth continuous information from a consolidated information distribution center (CIDC). The CIDC generates an optical signal encoded with information of multiple channels carried by one or more dedicated optical carriers and sends the optical signal to a plurality of head ends via an optical fiber. When a head end receives the optical signal, it decodes the optical signal to obtain information intended for the head end from at least one optical carrier that is dedicated to carry the information desired by the head end.

20030152386, Aug 14, 2003

Dec 3, 2002

10/308199

Sandeep Vohra - Ellicott City MD, US
Paul Matthews - Ellicott City MD, US
Irl Duling - Lancaster PA, US

H04J014/00

398/076000, 398/079000

Arrangements are provided for multi-format information optical transport. A multi-format optical signal transport generator is designed to generate a multi-format optical signal based on information in different formats from heterogeneous information sources. Such generated multi-format optical signal is optically transported via an optical fiber. Upon receiving the optical at a receiving end, a multi-format optical signal transport receiver decodes the multi-format optical signal to recover the information of different formats.

20030152387, Aug 14, 2003

Dec 3, 2002

10/308197

Irl Duling - Lancaster PA, US
Sandeep Vohra - Ellicott City MD, US
Paul Matthews - Ellicott City MD, US

H04J014/02
H04B010/00

398/081000, 398/147000, 398/141000

An optical communication system has an optical transmitter, an optical transmission line in optical communication with the optical transmitter, an optical receiver in optical communication with the optical transmission line, and a dispersion compensator disposed between the optical transmitter and the optical receiver along the optical transmission line. The optical transmitter is adapted to transmit an optical signal that includes multilevel encoding. The optical transmission line causes a first dispersion of the optical signal and the dispersion compensator causes a second dispersion of the optical signal. The second dispersion at least partially cancels the first dispersion.

20030161634, Aug 28, 2003

Dec 16, 2002

10/319817

James Costabile - Clarksville MD, US
Sandeep Vohra - Ellicott City MD, US
Paul Matthews - Ellicott City MD, US
Irl Duling - Lancaster PA, US

H04J004/00

398/076000, 398/141000

Arrangements are provided for optical transport of data. A scalable data transport system has an optical transmission system having a reconfigurable bit rate; an optical transmission fiber in communication with the optical transmission system; and an optical receiver system in communication with the optical transmission fiber. The optical transmission system is adapted to modulate an optical carrier with a subcarrier-multiplexed RF signal, and the subcarrier-multiplexed RF signal comprises a selectable plurality of RF signals that can be selected to configure a bit rate of the optical transmitter and reselected to reconfigure the bit rate of said optical transmitter.