Steven K Korotky

6567575, May 20, 2003

Sep 29, 2000

09/676390

Ronald J. Capik - Fords NJ
John P. Hickey - Oceanport NJ
Steven K. Korotky - Toms River NJ

Lucent Technologies Inc. - Murray Hill NJ

G01N 2100

385 17, 356 731

A method and apparatus for deriving insertion losses for connections in a single-stage optical cross-connect. The optical cross-connect comprises a number (N) of input ports, a number (M) of output ports and an on-board controller. A memory is provided on the on-board controller for storing N loss parameters for the N input ports and M loss parameters for the M output ports. A modeled insertion loss for a connection between any input port and any output port can be derived from the loss parameters associated with the input and output ports.

6763190, Jul 13, 2004

Jan 5, 2001

09/755613

Niraj Agrawal - Hammelburg, DE
John M. Hitchcock - Ames IA
Neil A. Jackman - Freehold NJ
Steven K. Korotky - Toms River NJ
Eric S. Tentarelli - Middletown NJ
Liyan Zhang - Columbia MD

Lucent Technologies Inc. - Murray Hill NJ

H04J 1400

398 5, 398 1, 370216

In a telecommunications network, such as an optical mesh network, satisfying a demand from a start node to an end node, the network is automatically provisioned from a service path to a restoration path after a failure occurs in the service path. Each affected node in the network eventually receives an indication of the occurrence of the failure in the service path. If the node is an intermediate node of the service path, then the node transmits a failure message to its next node along the service path. If the node is the end node of the service path, then the node transmits a restore message to its previous node along the restoration path. If the node is an intermediate node of the restoration path, then the node transmits a restore message to its previous node along the restoration path. In addition, the node reconfigures its cross-connect for the transition from the service path to the restoration path.

6947670, Sep 20, 2005

Jun 30, 1999

09/340476

Steven Kenneth Korotky - Toms River NJ, US
John J. Veselka - Clarksville MD, US

Lucent Technologies Inc. - Murray Hill NJ

H04J014/02

398 59, 398 67

An add/drop arrangement using broadband optical couplers provides a low-loss, highly flexible add/drop capability for survivable wavelength division multiplexed (WDM) ring networks. At each node in the ring having the broadband optical coupler-based add/drop element, a portion of optical signal power of the entire WDM signal (i. e. , all optical channels) is tapped off so that one or more optical channels of particular wavelengths can be dropped at the node. Information (e. g. , data) to be added at the node is supplied in an optical channel that is added to the WDM signal via the broadband coupler. Because the add/drop element uses a broadband coupler, another portion of optical signal power of the WDM signal, including any added optical channels, passes through the node onto the ring. Depending on the specific ring topology being used with the broadband coupler-based add/drop arrangement, additional wavelength assignment and handling measures may be required. For example, certain ring topologies may experience interference between optical channels of particular wavelengths due to possible re-circulation of these optical channels beyond the add and drop nodes (e. g.

7171116, Jan 30, 2007

Sep 17, 2002

10/245029

Steven K. Korotky - Toms River NJ, US
David S. Levy - Freehold NJ, US

Lucent Technologies Inc. - Murray Hill NJ

H04B 10/00

398 5, 398 16

A dual-output Mach-Zehnder modulator (MZM2) and configurations of optical transmitters based on the MZM2 which obviate the optical splitter that is typically used to provide keep-alive functionality in redundantly-connected, protected optical networks, SONET add-drop multiplexers, and optical IP routers. The configurations provide equivalent keep-alive utility at a reduced system cost relative to the prior art. The configurations also support enhanced Operations, Administration, Maintenance, and Provisioning (OAM&P) functionality at little to no additional cost relative to the prior art. Instead of being a direct copy of the service signal, the keep-alive of this configuration is an inverted version of the service signal. This inverted version of the service signal is supported at a client by utilization of means for detecting and righting the inverted signal. The inverted state of the signal on the protection path can be used as an inband indicator to notify the client in the event of a failure on the service path.

7366424, Apr 29, 2008

Aug 20, 2003

10/644235

Douglas M. Gill - South Orange NJ, US
Steven K. Korotky - Toms River NJ, US

Lucent Technologies Inc. - Murray Hill NJ

H04B 10/04
H04B 10/12

398185, 398193, 398186, 398188, 398159

Apparatus for creating a communication signal, comprising a modulator adapted to: modulate a first and a second beam of continuous wave electromagnetic radiation with a source signal, assemble modulated portions of the first and second beams into a first electromagnetic radiation signal of interposed regular and alternate data bit sequences comprising asserted non return to zero coded data bits, each of the data bit sequences being interposed by unasserted data bits, in which mutually adjacent asserted data bits are conjoined, and assemble modulated portions of the first and second beams into a second electromagnetic radiation signal of interposed regular and alternate data bar bit sequences comprising asserted non return to zero coded data bar bits representing the unasserted data bits, each of the data bar bit sequences being interposed by unasserted data bar bits representing the asserted data bits, in which mutually adjacent asserted data bar bits are conjoined. Such apparatus for creating a communication signal, further comprising means for modulating the first electromagnetic radiation signal with the source signal to shift the phase of the alternate data bit sequences; and means for modulating the second electromagnetic radiation signal with the source signal to shift the phase of the alternate data bar bit sequences. Methods for creating communication signals.

8122330, Feb 21, 2012

Aug 6, 2007

11/834169

Adriaan J. De Lind Van Wijngaarden - New Providence NJ, US
Randy C. Giles - Whippany NJ, US
Steven K. Korotky - Toms River NJ, US
Xiang Liu - Marlboro NJ, US

Alcatel Lucent - Paris

H03M 13/03

714787, 714774, 714788

An optical transport system (OTS) having a plurality of optical transponders (OTs) connected via one or more optical links and adapted to communicate with one another using respective rate-adaptive forward-error-correction (FEC) codes. In one embodiment, the OTS has a rate control unit (RCU) adapted to configure the OTs to dynamically adjust the rates of the FEC codes based on an estimated performance margin for each link between two respective communicating OTs to optimize the overall capacity of the OTS while maintaining an adequate, but not excessive, overall system margin.

20010038471, Nov 8, 2001

Jan 5, 2001

09/755615

Niraj Agrawal - Hammelburg, DE
Neil Jackman - Freehold NJ, US
Steven Korotky - Toms River NJ, US
Byung Lee - Holmdel NJ, US
Eric Tentarelli - Middletown NJ, US
Liyan Zhang - Columbia MD, US

H04B010/08
H04L001/00
G08C015/00

359/110000, 359/124000, 370/217000

In a telecommunications network, such as an optical mesh network, at a node along a service path satisfying a demand from a start node to an end node, the node can detect a failure in the service path by any of three different ways: (a) by monitoring incoming payload signals from its previous node along the service path for a loss-of-signal (LOS) condition; (b) by monitoring the incoming payload signals from its previous node along the service path for an in-band alarm indication signal; and (c) by monitoring an out-of-band signaling channel for a failure message transmitted from its previous node along the service path. The node then determines appropriate actions as part of a distributed restoration procedure depending on whether the node is an intermediate node or the end node along the service path. If the node is an intermediate node, then the node passes the out-of-band failure message to its next node along the service path. If the nod is the end node, then the node transmits an out-of-band restore message to its previous node along the corresponding restoration path. In both cases, the node proceeds to reconfigure its cross-connect for the transition from the service path to the restoration path.

20050060395, Mar 17, 2005

Sep 12, 2003

10/661747

Steven Korotky - Toms River NJ, US

G06F015/173

709223000

In the network global expectation model of the present invention, expectation values evaluated over the entire network are used as a multi-moment description of the required quantities of key network and network element (NE) resources and commensurate network costs. The network global expectation model of the present invention naturally and analytically connects the global (network) and local (network element) views of the communication system, and thereby may be used as a tool to gain insight and very quickly provide approximate results for the preliminary evaluation and design of dynamic networks. Further, the network global expectation model of the present invention may serve as a valuable guide in the areas of network element feature requirements, costs, sensitivity analyses, scaling performance, comparisons, product definition and application domains, and product and technology roadmapping.