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US20150071633 Photonic Switch Chip for Scalable Reconfigurable Optical Add/Drop Multiplexer  
System and method embodiments are provided for a photonic switch chip for scalable reconfigurable optical add/drop multiplexer (ROADM). The embodiments enable a low-cost pay as you grow ROADM that...
US20120163809 Burst-Mode Receiver Equipped with Optical Amplifier, Method for Controlling Optical Amplifier, and System  
To, even when a transmission wavelength varies in each ONU and an optical amplifier gain depends on the wavelength in an OLT equipped with an optical amplifier, prevent the optical amplifier gain...
US20130051799 METHOD FOR DISPERSION COMPENSATION IN A MESH OPTICAL NETWORK, AND A NETWORK USING SAME  
A method is provided for carrying out dispersion compensation in an optical mesh network supporting simultaneously traffic services being provided at two or three different bit rates including a...
US20110222864 METHOD AND SYSTEM FOR COMPENSATING FOR OPTICAL DISPERSION IN AN OPTICAL SIGNAL  
A method for compensating for optical dispersion includes receiving an optical signal at a first node of an optical network that includes a first set of channels and a second set of channels that...
US20120163800 Optical Time Domain Reflectometry (OTDR) Trace Analysis in PON Systems  
A client unit and a method are provided performing fault analysis in a Passive Optical Network, PON, by using Optical Time Domain Reflectometry, OTDR. The method comprises triggering a new OTDR...
US20140119730 SESSION-BASED DYNAMIC BANDWIDTH ALLOCATION APPLIED TO PASSIVE OPTICAL NETWORK  
A session-based dynamic bandwidth allocation applied to PON includes the steps of A) duplicating, under PON system, packets transmitted to a splitter from every ONU and filtering the packets as per...
US20140341568 High-Throughput Network Traffic Monitoring through Optical Circuit Switching and Broadcast-and-Select Communications  
A network traffic collecting and monitoring system includes a traffic processing and dispatching module that pre-processes network traffic received from traffic tapping modules. A traffic...
US20100158535 SMALL FORM-FACTOR PLUGGABLE TRANSCEIVER MODULE  
A small form-factor pluggable transceiver module including a first optical transceiver device having a first circuit board, a second optical transceiver device having a second circuit board, and a...
US20060216032 Integrated circuit for communications modules  
An integrated circuit product, for bidirectional communication, has two inputs and two outputs. The first input is located on a first edge of the integrated circuit product. The first output is...
US20120177364 METHOD AND APPARATUS FOR AUTOMATIC DISCOVERY IN OPTICAL TRANSPORT NETWORKS  
In order to improve the link adjacency discovery in an Optical Transport Network, a method and related network nodes are provided. A first network node (21) has a first discovery agent (216) and a...
US20140369679 ASYMMETRIC COMPENSATION OF POLARIZATION DEPENDENT LOSS IN DUAL-POLARIZATION OPTICAL SYSTEMS  
Methods and systems for asymmetrically compensating degradation of an optical signal-to-noise ratio (OSNR) induced by polarization dependent loss (PDL) in dual-polarization optical system include...
US20140205278 CALL SETUP SYSTEMS AND METHODS USING DYNAMIC LINK TAGGING AND OVERBOOKING OF LINKS IN MULTI-DOMAIN TRANSPORT NETWORKS  
Call setup methods in a multi-domain network and a multi-domain network use dynamic link tagging and/or overbooking of External Network-Network Interface (ENNI) links. Thus, improved call setup...
US20130108261 Circuit for Monitoring the Receiver of an Optical Transceiver and the Method for Monitoring Burst Mode Optical Power Thereof  
A circuit for monitoring an optical receiver or transceiver, architectures, circuits, and systems including the same, and a method for monitoring received optical power are disclosed. The receiver...
US20150125158 40G/100G/200G/400G PLUGGABLE OPTICAL TRANSCEIVERS WITH ADVANCED FUNCTIONALITY  
Integrated performance monitoring (PM); optical layer operations, administration, maintenance, and provisioning (OAM&P); alarming; amplification, and the like is described in optical transceivers,...
US20100061728 Object Modeling Scheme For Next Generation Network Wavelength Division Multiplexing  
An apparatus comprising a plurality of entities associated with a network element (NE), wherein the entities are associated with each other in a hierarchical architecture, wherein each entity is...
US20120263453 METHOD FOR SUPPORTING SNCP OVER PACKET NETWORK  
A method is presented for supporting SNCP over a packet network connecting to two SDH sub-networks and transporting one or more SDH paths that are SNCP-protected in both SDH sub-networks. The...
US20110123193 LINE CONTROL METHOD IN OPTICAL NETWORK AND OPTICAL NETWORK ITSELF  
In an access network using optical switches, communications between an OLT and ONUs are established without a photoelectric conversion performed at an optical switching unit. The OLT controls the...
US20070292141 Optical signal transmitter and optical wireless communications network using it  
An optical wireless communications network connects a plurality of communication cells, which are defined by dividing a local communication area, for enabling optical wireless communication in each...
US20120257893 Unified Network Management of Hybrid Fiber Coaxial (HFC) Network  
Embodiments enable a network operator to use any (and a single) network management system (NMS) that it desires to manage a network having mixed fiber to the home optical network units (ONUs) and...
US20110129223 APPARATUS AND METHOD FOR ALLOCATING DYNAMIC BANDWIDTH  
A dynamic bandwidth allocation apparatus of a passive optical network detects guarantee agreement information of each transmission container (T-CONT) queue of at least one optical network unit...
US20130177305 OPTICAL COMMUNICATION NETWORK PATH RESTORATION  
A method and system of determining a new path through an optical network from a source node to a destination node when a link in an original path fails are disclosed. When a fault on a link is...
US20130004167 OPTICAL FRAME ATTACHED WITH ALIGNMENT FEATURES MICROFABRICTATED IN DIE  
A photonic device assembly including a photonic device fabricated on a chip substrate, the chip substrate having a physical alignment feature fabricated therein, and a frame to couple an external...
US20150117850 OPTIMIZATION OF PHOTONIC SERVICES WITH COLORLESS AND DIRECTIONLESS ARCHITECTURE  
A method, in a node operating in a network with a control plane, to optimize wavelength retuning on service redials, includes detecting a failure on a link associated with the node; and, for each...
US20130287397 ELECTRO-OPTICAL SWITCHING FABRIC SYSTEMS AND METHODS  
An optical switch fabric, including: a first set of horizontal optical waveguides receiving a plurality of wavelengths; a plurality of wavelength-selective drop optical switches associated with the...
US20110293285 TRANSCEIVER MODULE AND INTEGRATED CIRCUIT WITH DUAL EYE OPENERS  
A transceiver module having integrated eye diagram opening functionality for reducing jitter is described. The transceiver module may include a transmitter eye opener and a receiver eye opener...
US20140314416 CROSSTALK REDUCTION IN OPTICAL NETWORKS USING VARIABLE SUBCARRIER POWER LEVELS  
A method and system for reducing crosstalk among subcarriers of a super-channel may involve adjusting power levels of the subcarriers. In one example, power levels of edge and/or intermediate...
US20130195445 COMPENSATION OF MODAL DISPERSION OF POLARIZATION BY DETERMINISTIC JAMMING OF POLARIZATION  
A method of calculating a series of control parameters to be applied to a polarization controller arranged so as to compensate for the modal dispersion of polarization affecting an optical signal...
US20130287391 METHODS AND APPARATUS TO DETERMINE A CAPACITY FOR A NETWORK LAYER TOPOLOGY  
Methods and apparatus to determine a capacity for a network topology are disclosed herein. An example method includes accessing a topology comprising a plurality of links; applying weights to the...
US20140072306 OPTICAL SERVICE CHANNEL SYSTEMS AND METHODS OVER HIGH LOSS LINKS  
Optical service channel (OSC) systems and methods over high loss links are described utilizing redundant telemetry channels. A first telemetry channel provides a low bandwidth communication channel...
US20110135312 40G/100G OPTICAL TRANSCEIVERS WITH INTEGRATED FRAMING AND FORWARD ERROR CORRECTION  
The present disclosure provides integrated performance monitoring (PM); optical layer operations, administration, maintenance, and provisioning (OAM&P); and alarming in optical transceivers, such...
US20120155869 OPTICAL PACKET SWITCHING SYSTEM  
An optical packet switching system includes: an optical packet switching device configured to route and output an input optical packet signal; an optical amplifier device provided in a stage...
US20110280580 TECHNIQUE FOR TRAFFIC RECOVERY IN MULTILAYER COMMUNICATION NETWORKS  
A method for recovery of a traffic flow being conducted via a communication line in a multi-layer communication network, the traffic flow comprising a Guaranteed traffic portion GT and a Best...
US20120263478 HEARING AID SYSTEM USING WIRELESS OPTICAL COMMUNICATIONS  
Provided is a hearing aid system using a wireless optical communications method. The hearing aid system includes: a voice transmitter that converts addresser's voice into an optical signal to then...
US20130272693 SYSTEM AND METHOD FOR SHARED MESH RESTORATION IN OPTICAL NETWORKS  
A method for shared mesh restoration includes configuring a switch to allow sharing of a plurality of backup line cards across a plurality of node degrees associated with a reconfigurable optical...
US20140255026 RECONFIGURABLE OPTICAL ADD/DROP MULTIPLEXOR AND OPTICAL SWITCHING NODE  
A colorless, directionless ROADM includes a pair of contentioned add and drop wavelength-selective optical switches, an input wavelength-selective optical switch having one input port, and an...
US20140348500 OPTICAL RECEIVER AND SLICE LEVEL CONTROL METHOD  
An optical receiver includes a first discriminator in which an optimal point of a slice level is set and that compares a received signal to the slice level and discriminately outputs the received...
US20110116802 Optical Wavelength Multiplexing/ De-multiplexing Circuit  
An optical wavelength multiplexing/de-multiplexing circuit having a low loss and a flat transmission spectrum is provided. The optical wavelength multiplexing/de-multiplexing circuit compensates a...
US20120063779 METHOD, APPARATUS AND SYSTEM FOR ADVERTISING ROUTING PROTOCOL MESSAGE AND CALCULATING ROUTE  
A method, apparatus and system for advertising a routing protocol message and calculating a route are provided which solve the problems that the time of connection establishment or rerouting in...
US20120099854 Layer One Path Delay Compensation  
A network component comprising a forwarding physical layer (PHY) unit comprising a source queue (SQ), wherein the forwarding PHY unit is configured to measure a one-way physical layer delay between...
US20110229122 RESTORATION SCHEME FOR AN OPTICAL NETWORK AND METHOD OF USING SUCH A SCHEME  
A method of restoration for an optical network, the network comprising a plurality of nodes (40, 50) interconnected with each other by optical links (130), a subset of the nodes (40) each...
US20140099118 SYSTEMS AND METHODS FOR ROUTING AND WAVELENGTH ASSIGNMENT FOR NETWORK VIRTUALIZATION  
A method for routing and wavelength assignment for optical network resources required for a plurality of virtual network requests includes receiving the plurality of virtual network requests. The...
US20150063828 Generalized Transmit Pre-Coding for Optical and Backplane Channels  
Systems that allow for DFE functionality to be eliminated from the receiver side of a communication system and for a DFE-like functionality to be implemented instead at the transmitter side of the...
US20120093513 METHOD AND APPARATUS FOR SYNCHRONIZATION IN A PASSIVE OPTICAL NETWORK  
A method, apparatus and system for aligning frames in which an Optical Network Unit (ONU) receives a frame comprising frame delimitation information and synchronization-related information;...
US20150063815 FIBER-TO-THE-ANTENNA SYSTEMS AND FIBER OPTIC DEMARCATION UNITS  
A fiber-to-the-antenna (FTTA) system includes a multi-fiber cable configured to be operatively coupled to fiber optic equipment on the ground, and a fiber optic demarcation unit comprising an...
US20140126899 MESH RESTORATION AND BANDWIDTH ALLOCATION SYSTEMS AND METHODS FOR SHARED RISK CONNECTION GROUPS  
A method, a node, and a network include mesh restoration and bandwidth allocation systems and methods for shared risk connection groups for source-based routing control planes. The mesh restoration...
US20110188865 METHOD FOR RAPID DETERMINATION OF LOWEST COST WAVELENGTH ROUTES THROUGH A PHOTONIC NETWORK BASED ON PRE-VALIDATED PATHS  
A method of setting up an end-to end connection between two end-points in an optical network. A plurality of validated paths in the network are defined. Each validated path extends between a...
US20150078739 APPARATUS AND METHODS FOR ENABLING RECOVERY IN OPTICAL NETWORKS  
Apparatus for enabling an M:N recovery scheme in an optical network includes a set of N working DSP-enabled optical transceivers/transponders including at least one working DSP-enabled optical...
US20140308047 OPTIMUM MODULATOR BIAS SYSTEMS AND METHODS IN COHERENT OPTICAL TRANSMITTERS  
A modulator bias selection method, a coherent optical transmitter, and optical modulator solve the problem of generating a correct constellation using the bias points with the minimum phase...
US20120189304 METHOD, APPARATUS, AND SYSTEM FOR ASSIGNING TRIBUTARY PORT NUMBER  
Embodiments of the present invention relate a method, an apparatus, and a system for assigning a tributary port number. The method includes: receiving a service path request message which is sent...
US20130236173 SCALABLE OPTICAL-CORE NETWORK  
A network comprising a large number of electronic edge nodes interconnected through bufferless optical switch planes so that a signal from any edge node to any other edge node traverses only one...