OPTICAL PATH ROUTE DESIGN DEVICE AND OPTICAL PATH ROUTE DESIGN METHOD

Protection of channel connections in an optical network

Submarine branching apparatus, optical submarine cable system, and optical communication method

Systems and methods for mesh restoration in networks due to intra-node faults

Protection of channel connections in an optical network

Optical network unit wavelength tuning

PROCEDURES, APPARATUSES, SYSTEMS, AND COMPUTER PROGRAMS FOR PROVIDING OPTICAL NETWORK CHANNEL PROTECTION

Data center packet optical transport failure protection

Repeaterless passive optical add/drop multiplexed fiber network

Optical network unit wavelength tuning

Methods and apparatus for self healing of an optical transceiver in a wavelength division multiplexing (WDM) system

PROCEDURES, APPARATUSES, SYSTEMS, AND COMPUTER PROGRAMS FOR PROVIDING OPTICAL NETWORK CHANNEL PROTECTION

Optical wavelength automatic adaptation of transceivers

Protection switching across interconnecting node

Methods and apparatus for self healing of an optical transceiver in a wavelength division multiplexing (WDM) system

Optical transmission device and protection wavelength selection method

Method and device for channel switching, optical network unit, and time wavelength division multiplexing system

Communication system, communication control method, and transmission apparatus

Operationally resilient optical network

Optical transmitter and transmission method, and optical receiver and receiption method

Transmission apparatus and network control method

Optical transmission device and optical transmission system

Protection method and optical communication system

Method and apparatus for local path protection

Communications network

Optical transmission system, transmitter, receiver, and optical transmission method

Optical branching/insertion device, optical branching/insertion method and recording medium

Methods and apparatus for determining a path in a communications network

Multi-failure resolution optical node, optical communication system using same, and wavelength path switching method

Efficient utilization of transceivers for shared restoration in flexible grid optical networks

OPTICAL TRANSMISSION APPARATUS, OPTICAL TRANSMISSION SYSTEM, AND OPTCIAL TRANSMISSION METHOD

Apparatus and methods for enabling recovery from failures in optical networks

Coordination systems and methods between data control plane and photonic control in optical networks

Apparatus and method for optimizing the reconfiguration of an optical network

Procedures, apparatuses, systems, and computer programs for providing optical network channel protection

Optimization of photonic services with colorless and directionless architecture

Suurballe-based cloud service embedding procedure in software-defined flexible-grid optical transport networks

Contention handling in SMP based networks

Directionless optical architecture and highly available network and photonic resilience methods

Transponder and optical transmission apparatus

Protected optical single-fiber WDM system

Apparatus and methods for enabling recovery from failures in optical networks

Method for protection of multi-wavelength passive optical network

Optical transmission system, receiving-end device, and optical transmission method

Method and apparatus for a reconfigurable optical add/drop module with loop-back functions

Optical switching architectures for nodes in WDM mesh and ring networks

Optical transmission apparatus

Method and apparatus for protection switching in optical transport network

2-step-optimization procedure for routing and wavelength assignment with combined dedicated shared protections in multi-cable multi-fiber optical WDM networks

Joint optimization procedure for routing and wavelength assignment with combined dedicated shared protections in multi-cable multi-fiber optical WDM networks

Wavelength multiplexing optical transmission system, transmitter, and receiver

Method and system for detecting fiber fault in passive optical network

Method and system for hybrid multi-layer mesh restoration in a communication network

Optical repeater complying with redundant configuration

Encoding and processing of signaling messages for ODU SMP

Optical transmission device and optical transmission network system

OPTICAL COMMUNICATION SYSTEM

Apparatus and method for switching paths in a wavelength-multiplexing network

Protection system, method and apparatus for optical network

Method, system and device for single-fiber bidirectional ring network protection

Optical amplification apparatus, method for controlling same, optical receiver station, and optical transmission system

Bandwidth variable communication method, bandwidth variable communication apparatus, transmission bandwidth determination apparatus, transmission bandwidth determination method, node apparatus, communication path setting system, communication path setting

Light power control system, light power control node apparatus, and method of controlling light power

Optical signal transmission device, optical signal reception device, wavelength division multiplexing optical communication device, and wavelength path system

Network protection method and device

METHOD AND SYSTEM FOR PROTECTION SWITCHING

SYSTEM AND METHOD FOR SPARING CHANNELS OF A MULTI-WAVELENGTH TRANSPONDER

Packet transmission system and fault recovery method

Optical switching architectures for nodes in WDM mesh and ring networks

Method of switching optical path, and apparatus thereof

System and method for demand aggregation in optical networks employing shared ring protection

Communication network

Optical network system, optical redundant switching apparatus, and WDM apparatus

PROTECTION SWITCHING METHOD IN OPTICAL TRANSPORT NETWORK

Maintenance friendly optical fiber switching system

Method and system for shared protection in wavelength division multiplexing loop network

Packet transfer device

Method for routing and wavelength assignment information encoding for wavelength switched optical networks

Technology for providing telecommunication services to multiple optical communication lines

Channel protection for multi-channel optical transmission system and method

MULTIPLE REDUNDANCY SCHEMES IN AN OPTICAL NETWORK

Optical channel intelligently shared protection ring

Routing method of optical communication network node apparatus and optical communication network node apparatus

Optical ring network system

Method for the protection of a passive optical transmission network as well as a passive optical transmission network with a corresponding protection mechanism

Sparing for multi-wavelength optical transmitter

Dispersion compensation method and device in optical communication system

Bi-directional optical link between multiple data sources and a processing node in an avionics platform

Apparatus and method for cross-connecting optical path in wavelength division multiplexing system

Three-way handshake (3WHS) optical network signaling protocol

Hardened, wavelength enabled optical capacity

GANGED OPTICAL SWITCH

WAVELENGTH DIVISION MULTIPLEXED OPTICAL COMMUNICATION SYSTEM HAVING A RECONFIGURABLE OPTICAL SWITCH AND A TUNABLE BACKUP LASER TRANSMITTER

Optical remote node device and support equipment for constructing and extending fiber-optic access networks

Method for mesh optical network service restoration

Communication recovering system for wavelength division multiplexed passive optical network

Methods of protection sharing for multi-protected optical demands in large-scale WDM mesh networks

Aggregating Optical Network Device

Directionless optical architecture and highly available network and photonic resilience methods

Bidirectional wavelength-division-multiplexed passive optical network

Fast fault notifications of an optical network

OPTICAL SOURCE LINK TRANSMISSION DEVICE AND METHOD

Methods and apparatus for performing directionless wavelength addition and subtraction within a ROADM based optical node

METHOD, SYSTEM AND APPARATUS FOR PROTECTING WAVELENGTH DIVISION MULTIPLEX TRANSMISSION

DESIGN METHOD FOR WDM OPTICAL NETWORKS INCLUDING ALTERNATE ROUTES FOR FAULT RECOVERY

Method, device and system for group optical channel shared protection

Orthogonal frequency division multiple access based optical ring network

Wavelength assignment optimization

Shared protection method and apparatus for reconfigurable optical add-drop multiplexer (roadm) based mesh networks

Methods and apparatuses for handling multiple failures in an optical network

Multiple redundancy schemes in an optical network

Multi-ring network operating method and system

Virtual path restoration scheme using fast dynamic mesh restoration in an optical network

Method, Apparatus And System For Optical Channel Group Shared Protection

Method and system for performance monitor for digital optical DWDM networks

Method for protecting cross-ring service in optical network

Virtual path restoration scheme using fast dynamic mesh restoration in an optical network

System and method for establishing protected connections

OPTICAL NETWORK BACKUP CHANNEL SWITCHING CONTROL DEVICE

OPTICAL NETWORK TRANSMISSION CHANNEL FAILOVER SWITCHING DEVICE

Optical signal transmission device and optical communication network

Method and apparatus for photonic resiliency of a packet switched network

Method and apparatus for providing integrated symmetric and asymmetric network capacity on an optical network

WAVELENGTH DIVISION MULTIPLEXING PASSIVE OPTICAL NETWORK SYSTEM

WAVELENGTH DIVISION MULTIPLEXING PASSIVE OPTICAL NETWORK SYSTEM

Method and device for surveillance of optical connection paths for a transparent optical network

Communication apparatus, communication line diagnosis method, program and recording medium

Virtual protection channel for fiber optic ring network

Multi-channel protection switching systems and methods for increased reliability and reduced cost

PATH SETTING METHOD, NODE DEVICE, AND MONITORING/CONTROL DEVICE

Network managing apparatus, optical add/drop multiplexer, and network managing method

Optical switching architectures for nodes in WDM mesh and ring networks

Application of hardware-based mailboxes in network transceivers and distributed approach for predictable software-based protection switching

Optical transmission systems including optical protection systems, apparatuses and methods

Method and device for implementing Och-Spring in wavelength division multiplexing systems

Interconnections and protection between optical communications networks

Common protection architecture for optical network

Optical path cross-connect and optical wavelength multiplexing diversity communication system using the same

Optical ring networks using circulating optical probe in protection switching with automatic reversion

Method and system for designing ring-based telecommunications networks

Method and arrangement for the transmission of working signals and protection signals via optical data networks

Optical, network, node apparatus and method for recovery path fault

Reconfigurable multichannel (WDM) optical ring network with optical shared protection

Systems and methods for placing line terminating equipment of optical communication systems in customer points of presence

Fully protected broadcast and select all optical network

Optical double sideband modulation technique with increased spectral efficiency

1:N protection in an optical terminal

(D) WDM communications network using back-up light sources

Device and method for correcting a path trouble in a communication network

Method of allocating bandwidth in an optical network

System and method for protecting optical light-trails

Wavelength division multiplexing transmission system, wavelength division multiplexing transmission apparatus and method for controlling wavelength division multiplexing transmission apparatus

Apparatus For and Method of MAC Based Transmission in WDM Optical Ring Networks

System and method for implementing optical light-trails

Optical apparatus and optical cross connect apparatus

Optical channel intelligently shared protection ring

Optical add-drop multiplexer, and optical network equipment using the same

Virtual path restoration scheme using fast dynamic mesh restoration in an optical network

Optical node and optical add/drop multiplexer

Method and apparatus for protecting optical signals within a wavelength division multiplexed environment

Method and system for shared optical protection

Method and system for shared optical regeneration

Path protection method for a WDM network and according node

Optical transmission apparatus and optical transmission system

All-optical protection signaling systems and methods in optical communication networks

Communication recovering system for wavelength division multiplexed passive optical network

Protection switching arrangement for an optical switching system

Method and system for monitoring an optical network

WDM layer-based optical chanel protecting device and method thereof

Design method for WDM optical networks including alternate routes for fault recovery

Method for WDM optical networks including alternate routes for fault recovery

Method and system for maximizing wavelength reuse in optically protected WDM networks

Optical cross connect apparatus and optical transmission system

Optical transmission system with two-mode ring protection mechanism for prioritized client signals

Method of failure protection for digital transmission system in ring configuration, and relevant multiplexing device

Hybrid optical ring network

Self-healing hierarchical network management system, and methods and apparatus therefor

Method for selecting a restoration path in a mesh network

Optical cross-connect device and method of optical communication control

Method for routing information over a network

Method and apparatus for multiplexing in a wireless communication infrastructure

Photonic data storage network

Fast fault notifications of an optical network

Reroutable protection schemes of an optical network

Method of providing network services

IP packet communication apparatus

Wavelength and filter arrangement for WDM networks

Protection for bi-directional optical wavelength division multiplexed communications networks

Upgraded flexible open ring optical network and method

Optical add/drop device

Node device of optical ring network

Optical-level control method, optical-level control apparatus and wavelength-multiplexing optical network

Method and apparatus for multiplexing in a wireless communication infrastructure

Self-healing passive optical network

Method for routing information over a network

Optical ring network with optical subnets and method

Protection architecture for photonic switch using tunable optical filter

Hybrid optical ring-mesh protection in a communication system

Protected bidirectional WDM network

WDM bidirectional add/drop self-healing hubbed ring network

Method for restoring a virtual path in an optical network using 1:N protection

Method and apparatus for operation, protection, and restoration of heterogeneous optical communication networks

Method and a device for controlling protection or restoration paths in a hybrid optical network

System and method for communicating optical traffic between ring networks