Nabil M Badr

US Patent:

6775477, Aug 10, 2004

Filed:

May 19, 2003

Appl. No.:

10/440961

Inventors:

Nabil M. Badr - Elkridge MD

Assignee:

Corvis Corporation - Columbia MD

International Classification:

H04B 1008

US Classification:

398 1, 370222, 398 59

Abstract:

Optical systems of the present invention are configured in optical networks including a plurality of optical switch nodes interconnected by a plurality of optical transmission fibers, or other waveguides. The transmission fibers in the network can provide working and/or protection capacity for information, or communications traffic, being transmitted through the network. In various embodiments of the network, multiple diverse, working routes are provided on a single fiber path interconnecting a plurality of switch nodes. The multiple, diverse working routes can then be protected using a common protection fiber or path to provide shared protection. The switch nodes include optical switch configured to provide various levels of optical switching depending upon the network configuration. For example, line switches as well as optical cross-connects and routers can be deployed in the present invention to switch one or more wavelengths between the working and protection fibers. The optical systems can be further configured to carry lower priority traffic on the protection fibers or wavelengths during normal operation to increase the overall normal operating capacity of the system.

US Patent:

6809858, Oct 26, 2004

Filed:

Mar 25, 2003

Appl. No.:

10/396183

Inventors:

Nabil M. Badr - Columbia MD
Raymond Zanoni - Clarksville MD

Assignee:

Corvis Corporation - Columbia MD

International Classification:

H04B 1012

US Classification:

35934132, 385 24, 385 42

Abstract:

Optical systems of the present invention generally include at least one optical amplifier having a first pump source configured to supply power to said amplifier via a first pumping paths. A second pumping path is provided to supply power to the amplifier from a second pump source configured to replace power from the first pump source. The amplifier allows the replacement and repair of a pump source during operation by providing in-service hot swap capability, which increases the overall availability of the amplifier. The pump source can also be changed during operation to allow reconfiguration of the optical system.

US Patent:

6967769, Nov 22, 2005

Filed:

Sep 8, 2004

Appl. No.:

10/935948

Inventors:

Nabil M. Badr - Columbia MD, US
Raymond Zanoni - Columbia MD, US

Assignee:

Corvis Corporation - Columbia MD

International Classification:

H01S003/00

US Classification:

35934132, 35934133

Abstract:

Optical systems of the present invention generally include at least one optical amplifier having a first pump source configured to supply power to said amplifier via a first pumping paths. A second pumping path is provided to supply power to the amplifier from a second pump source configured to replace power from the first pump source. The amplifier allows the replacement and repair of a pump source during operation by providing in-service hot swap capability, which increases the overall availability of the amplifier. The pump source can also be changed during operation to allow reconfiguration of the optical system.

US Patent:

6567194, May 20, 2003

Filed:

Aug 17, 1999

Appl. No.:

09/375704

Inventors:

Nabil M. Badr - Columbia MD

Assignee:

Corvis Corporation - Columbia MD

International Classification:

H04B 1008

US Classification:

359110, 359119, 370222

Abstract:

Optical systems of the present invention are configured in optical networks including a plurality of optical switch nodes interconnected by a plurality of optical transmission fibers, or other waveguides. The transmission fibers in the network can provide working and/or protection capacity for information, or communications traffic, being transmitted through the network. In various embodiments of the network, multiple diverse, working routes are provided on a single fiber path interconnecting a plurality of switch nodes. The multiple, diverse working routes can then be protected using a common protection fiber or path to provide shared protection. The switch nodes include optical switch configured to provide various levels of optical switching depending upon the network configuration. For example, line switches as well as optical cross-connects and routers can be deployed in the present invention to switch one or more wavelengths between the working and protection fibers. The optical systems can be further configured to carry lower priority traffic on the protection fibers or wavelengths during normal operation to increase the overall normal operating capacity of the system.

US Patent:

6567207, May 20, 2003

Filed:

May 12, 1999

Appl. No.:

09/310324

Inventors:

Nabil M. Badr - Columbia MD
Raymond Zanoni - Columbia MD

Assignee:

Corvis Corporation - Columbia MD

International Classification:

H04J 1400

US Classification:

35934132, 385 24, 385 42, 359134

Abstract:

Optical systems of the present invention generally include at least one optical amplifier having a first pump source configured to supply power to said amplifier via a first pumping paths. A second pumping path is provided to supply power to the amplifier from a second pump source configured to replace power from the first pump source. The amplifier allows the replacement and repair of a pump source during operation by providing in-service hot swap capability, which increases the overall availability of the amplifier. The pump source can also be changed during operation to allow reconfiguration of the optical system.