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US20100303461 Undirected Cross Connects Based on Wavelength-Selective Switches  
Undirected cross connects are provided based on wavelength-selective switches. A undirected Cantor network is disclosed where the switch nodes are wavelength selective switches. A undirected Clos...
US20130209101 DIGITAL SUBCARRIER OPTICAL NETWORK UTILIZING DIGITAL SUBCARRIER CROSS-CONNECTS WITH INCREASED ENERGY EFFICIENCY  
The present invention provides reduced power dissipation and other benefits at the optical transport network layer by utilizing a digital subcarrier optical network comprising multiple digital...
US20120269510 DIGITAL SUBCARRIER OPTICAL NETWORK UTILIZING DIGITAL SUBCARRIER CROSS-CONNECTS WITH INCREASED ENERGY EFFICIENCY  
The present invention provides reduced power dissipation and other benefits at the optical transport network layer by utilizing a digital subcarrier optical network comprising multiple digital...
US20120170934 Methods for Determining Energy Efficient Optical Routes  
An optical network includes multiple source, cross connect, and destination nodes. A traffic demand matrix is constructed for each possible pair of combinations of the source nodes and the...
US20130195451 Modular Optical Patch Panel  
A scalable, modular optical mesh patch panel includes a multi-slot receptacle configured to receive at least one of a first modular optical interconnect block and a second modular optical...
US20120308224 Standby Restoration Signaling For Optical Networks  
Systems and methods are described that provide a distributed restoration signaling protocol for shared mesh restoration with standbys for transparent optical networks.
US20110188853 WAVELENGTH DIVISION MULTIPLEX TERMINAL WITH AUTOMATIC CONFIGURATION AND SUPERVISION OF SWITCH CONNECTIONS  
A wavelength division multiplexer terminal with a multiplexer arrangement with a first switching matrix, and a demultiplexer arrangement with a second switching matrix allows flexibility for...
US20140241720 LATCHING OPTICAL SWITCH AND SUBSYSTEM USING BISTABLE LIQUID CRYSTAL  
A submarine network includes a submarine network with a branching unit BU for splitting or combining a signal between a main trunk path and a branch path for allowing signals from different paths...
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...
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...
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...
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...
US20130108267 Methods for Expanding Cross-Connect Capacity in a ROADM Optical Network  
A reconfigurable optical add-drop multiplexer (ROADM) transport network comprising a plurality of optical fan-out devices and a first plurality and a second plurality of demultiplexers for locally...
US20140099102 SYSTEMS AND METHODS FOR STATISTICAL SHARING IN OPTICAL COMMUNICATIONS NETWORKS  
A method of statistical sharing in an optical communications network is disclosed. The method includes identifying a peak transmission rate and a base transmission rate for each of a plurality of...
US20120020664 WAVELENGTH SELECTIVE LIGHT CROSS CONNECT DEVICE  
A wavelength selective light cross connect device 1A is configured of a route selector 10A including route selection elements 11-1 to 11-N, wavelength selector 20A, route selector 40A including...
US20140177658 Optical Wavelength-Selective Switch With A Bank Of Wavelength Convertors  
An apparatus includes a wavelength-selective optical switch able to route light between a first optical port and a plurality of second optical ports. The wavelength-selective optical switch...
US20100260500 MULT9-DEGREE WAVELENGTH CROSS-CONNECT USING BIDIRECTIONAL WAVELENGTH SELECTIVE SWITCH  
A modular wavelength cross connect node for use in a dense wavelength division multiplexing network exhibiting low cost and improved performance by employing a bidirectional wavelength selective...
US20130195452 DIGITAL SUBCARRIER CROSS-CONNECT SWITCHING  
The present invention uses digital subcarrier cross-connect switching to accomplish various network processes more efficiently. These processes include interconnecting network components, and...
US20080013949 Link connectivity verification method  
A link connectivity verification message to recognize a physical link connection state is transmitted from the WDM to the PXC on a C-plane. The PXC transmits a link connectivity verification ACK...
US20130089321 Method and apparatus for implementing self-adaption of cross granularity in optical transport network  
The disclosure relates to a method and apparatus for implementing self-adaption of cross granularity in an Optical Transport Network (OTN). The method includes: acquiring an optical interface side...
US20110116797 SIGNAL POWER BASED ROUTING IN WDM ALL-OPTICAL NETWORKS  
In a Wavelength Division Multiplexed (WDM) all-optical network having optical nodes linked together by optical fibers carrying communication channels of separate wave-lengths, a method is applied...
US20140270767 CROSS-CONNECT USING ETHERNET MULTIPLEXORS FOR A SIMPLE METRO ETHERNET NETWORK  
A metro area network is provided that includes edge and core multiplexors each having a plurality of line ports and one or more uplink ports, a transport network carrying multiplexed traffic...
US20080240716 Beam position sensor  
A beam direction sensor for determining the direction of each beam in an array of light beams. The invention basically consists of a screen positioned to intersect the array of beams and a video...
US20120002964 OPTICAL ADD DROP MULTIPLEXER  
An optical add-drop multiplexer having first and second routes includes: an optical cross connect; a first multiplexer optically coupled to a plurality of output ports of the optical cross...
US20140003811 MULTIBAND RECONFIGURABLE OPTICAL ADD-DROP MULTIPLEXING WITH CONVERGED SIGNAL ADDITION AND REMOVAL  
Various architectures for implementing multi-band reconfigurable optical add-drop multiplexing with converged signal addition and removal are provided. Under the described architectures, channel...
US20090214207 PACKAGING A RECONFIGURABLE OPTICAL ADD-DROP MODULE  
A hermetically packaged, MEMS array-based ROADM module is disclosed. The enclosure sidewalls and a top lid are made of Kovar, and the base is made of alumina ceramic AuSn-soldered to the enclosure...
US20080170856 SYSTEM FOR UTILIZING WAVELENGTH REACHABILITY AND WAVELENGTH OCCUPATION STATUS INFORMATION TO DESCRIBE CROSS-CONNECTION CAPABILITIES IN OPTICAL NETWORKS  
A system for communicating cross-connection information within an optical network by use of wavelength information is provided. Cross-connection information in Wavelength Division Multiplexing...
US20090142058 PHOTONIC CROSS-CONNECT  
A photonic cross-connect includes a plurality of ingress WS-switches with drop outputs outputting WDM drop signals including odd channels and a plurality of egress WS-switches for receiving WDM...
US20120121255 OPTICAL SWITCHING DEVICE AND COMMUNICATIONS SYSTEM  
An optical switching device includes a optical add/drop multiplexer that at least adds an optical signal into and/or drops an optical signal from wavelength division multiplexed light that is...
US20080124078 Optical switch and optical crossconnect apparatus  
An optical switch is constructed by: first and second optical switches each having ports of k inputs and k outputs; a third optical switch of k inputs and k outputs which can perform a...
US20080260383 CENTRALIZED RESOURCE MANAGEMENT IN WAVELENGTH SELECTIVE SWITCH BASED WAVELENGTH CROSS CONNECT SYSTEMS  
A Centralized Resource Management (CRM) system that supports the sharing of all the transponders in a WXC node, i.e., any spare transponder can be reconfigured to accommodate any drop channel,...
US20140056584 Reconfigurable Optical Add-Drop Multiplexer and Optical Network Element  
A reconfigurable optical add-drop multiplexer (10) comprising an input (20), an output (22), drop outputs (30), add inputs (22), a demultiplexer (18), a cross-connect element (12), a drop element...
US20150037032 High Connectivity Multiple Dimension Optical Network in Glass  
An optical communications system includes a first plurality of optical components having optical ports, a second plurality of optical components having optical ports and an optical cross-connect....
US20110318006 MULTIPLE INPUT/OUTPUT WAVELENGTH SELECTIVE SWITCH DEVICE  
A multiple input/output wavelength selective switch device 1 is configured of an N×M optical cross connect switch 10, wavelength selector 20 and controller 40. The N×M optical cross connect switch...
US20090232497 DIRECTIONLESS RECONFIGURABLE OPTICAL ADD-DROP MULTIPLEXER SYSTEMS AND METHODS  
The present invention provides a directionless reconfigurable optical add/drop multiplexer (ROADM) system. The present invention provides a scalable all-optical switching element that includes a...
US20090220229 TRANSPARENT SWITCHING FABRIC FOR MULTI-GIGABIT TRANSPORT  
A communication apparatus includes at least one input port, multiple output ports, at least one Serial-to-Parallel (S/P) converter and at least one Parallel-to-Serial (P/S) converter. The S/P...
US20080181606 Optical bi-directional line-switched ring transmission system, transmission apparatus, and through cross-connect setting method  
An optical bi-directional line-switched ring transmission system includes a unit configured to transmit, from a transmission source node in a signal path for setting a cross-connect to an adjacent...
US20150155964 Method and Apparatus for Acquiring Internal Fiber Connection Relationship in Reconfigurable Optical Add/Drop Multiplexer  
A method of the present invention includes: acquiring logic optical propagation paths between an egress port of a wavelength selective switch at a receive end and an ingress port of a wavelength...
US20090142057 OPTICAL TRANSMISSION EQUIPMENT AND OPTICAL NETWORK  
In order to insert a regenerator into a wavelength cross-connect equipment, there is provided at least one port that demultiplexes one wavelength among the wavelength multiplexed signals that are...
US20100092173 CROSS-CONNECT METHOD AND CROSS-CONNECT APPARATUS  
A cross-connect apparatus and method where the apparatus includes an interface section which divides signals from a transmission line into multiple paths to provide the signals to cross-connect...
US20080181605 MULTI-DEGREE OPTICAL NODE ARCHITECTURES  
An optical node includes a plurality of optical input components operable to receive a plurality of signals communicated in an optical mesh network. A plurality of optical drop components coupled...
US20080205888 Semiconductor optical amplifier type gate switch drive circuit, semiconductor optical amplifier type gate switching drive, and optical cross connect  
A drive circuit is provided for a semiconductor optical amplifier type gate switch includes a first transmission path and a second transmission path. The first transmission path includes a common...
US20050053374 Error propagation and signal path protection in optical network  
A method and a device in a cross-connector node in an optical network for error propagation and signal path protection including supervision of incoming signal on input port, switching off of...
US20120128347 Optical switching device, optical add device, and optical drop device  
An optical switching device includes plural wavelength selective switches that respectively have a first port and a plurality of second ports; and an optical coupler that has a plurality of third...
US20090067836 METHOD, APPARATUS, SYSTEM, AND COMPUTER PROGRAM TO VALIDATE NETWORK ELEMENT INTERFACES FOR FUNCTIONAL TESTING  
A method, apparatus, computer program, and system for validating network element interfaces for functional testing. The method is comprised of coupling together at least two main interfaces of a...
US20080138068 Optical cross-connect using wavelength selective switches  
An optimally-sized optical cross-connect that switches optical signal paths with a minimum number of wavelength selective switches and their interconnections. To switch optical signals of N routes...
US20140029944 OPTICAL CROSS-CONNECT APPARATUS  
An optical cross-connect apparatus includes: a plurality of optical cross-connect portions each having an inter-node connection input port and an inter-node connection output port respectively...
US20060013586 Optical switching station and connection method for the same  
An optical switching station comprises a first plurality of input channels for through data traffic, a second plurality of output channels for through data traffic, at least one first optical...
US20140186038 Multi Directional Multiplexer  
Described herein is an optical transmission cross-connect for routing wavelength signals to a bank of directionless transceivers. One embodiment (1) includes an array of four common-port fibers...
US20100260501 BIDIRECTIONAL WAVELENGTH CROSS CONNECT ARCHITECTURES USING WAVELENGTH ROUTING ELEMENTS  
Bidirectional wavelength cross connects include a plurality of ports, each configured to receive an input optical signals, each input optical signal having a plurality of spectral bands. At least...

Matches 1 - 50 out of 81 1 2 >