Optical packet transmitting/receiving system

Method and apparatus for optical path validation in an optical network

Transmission quality determination method, transmission path selection method and network management system

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

Span loss monitoring system, supervisory signal sending apparatus and supervisory signal receiving apparatus

Routing, wavelength assignment, and spectrum allocation in wavelength convertible flexible optical wavelength-division multiplexing networks

Photonic routing systems and methods for loop avoidance

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

Optical signal-processing apparatus, receiving apparatus, and optical network system

OPTICAL TRANSPORT MULTIPLEXING CLIENT TRAFFIC ONTO PARALLEL LINE SYSTEM PATHS

Apparatus and method for operating a wavelength division multiplexing access network

Colorless, directionless, and gridless optical network, node, and method

Communication method, optical communication system, station-side optical-line terminal apparatus, and user-side optical-line terminal apparatus

Method and apparatus for local optimization of an optical transmitter

Optical transmitter, optical transmission method, and wavelength-selective variable delayer

Continuous-mode wavelength conversion apparatus, burst-mode wavelength conversion apparatus, remote termination apparatus and central office termination apparatus

Wavelength division multiplexing filter

METHODS AND NODE ENTITIES IN OPTICAL NETWORKS

Fiber optic multiplex modem

Bi-directional, compact, multi-path and free space channel replicator

Fuzzy control method and apparatus for signal receiving part in high speed wavelength division multiplexing system

System and method for transmitting optical signals

Transponder pool sizing in highly dynamic translucent WDM optical networks

System and method for operating transparent node for WDM shared “virtual ring” networks

Wavelength Selective Switch Band Aggregator and Band Deaggregator and Systems and Methods Using Same

Wavelength division multiplexed optical communication system having variable channel spacings and different modulation formats

Rate selection for channel selection in flexible WDM networks

Method, apparatus and system for advertising routing protocol message and calculating route

Method for data processing in an optical network component and optical network component

Optical network design apparatus and method

OPTICAL LINE TERMINAL AND PON SYSTEM

Multi-chassis router with multiplexed optical interconnects

Optical communications network node and method of controlling data transmission between optical communications network nodes

Network planning and optimization of equipment deployment

Optical transmission system and optical transmission method

Optical transmission device, operational wavelength number restricting method, and program

Configuring synchronous optical switches

SYSTEM AND METHODS FOR QUANTUM KEY DISTRIBUTION OVER WDM LINKS

Optical relay system and network control device

Tenant isolation in a multi-tenant cloud system

Passive optical network protection method, switchover control device, and passive optical network protection system

Methods and systems for providing reliable multicast service in a WLAN system

OPTICAL AMPLIFIER, CONTROL METHOD THEREFOR, AND OPTICAL TRANSMISSION SYSTEM

Optical access network, secondary network side termination node of an optical access network, and method for operating a network side termination node

Wavelength division multiplexing transmission system, optical channel monitor and optical channel monitoring method

SENDING AND RECEIVING INFORMATION

Passive optical network system

Communication system, subscriber accommodating apparatus and communication method

Reconfigurable optical add drop multiplexer node automated topology discovery systems and methods

Mesh restoration in optical transport networks

Method and system for ascertaining the mapping between virtual lanes and physical lanes in a multi-lane transceiver

Method and system for providing fault recovery using composite transport groups

Optical network element and optical transmission system

Optical autodiscovery for automated logical and physical connectivity check between optical modules

Network management system

Passive Optical Networks

Light transmission device, optical relay device, optical wavelength multiplexing transmission apparatus, and light transmission method

Tunable receiver

Long reach optical network

Optical network designing device, method, and program

Restoration scheme for an optical network and method of using such a scheme

Optical amplifying device, gain control method, optical transmission device, and gain control device

Make before break optical mesh network element

Method and system for configuring a connection-oriented packet network over a wavelength division multiplexed optical network

Shared photonic mesh

System and method for optimizing the selection of ghost channels in mitigating polarization hole burning

Optical communication apparatus and optical add/drop apparatus

Data channel organization for a switched arbitrated on-chip optical network

OPTICAL SIGNAL IDENTIFYING OR DETECTING METHOD AND APPARATUS, AND IDENTIFYING AND DETECTING SYSTEM

Wavelength division multiplex terminal with automatic configuration and supervision of switch connections

Optical transmission apparatus and continuity testing method

Method for engineering connections in a dynamically reconfigurable photonic switched network

Communication network

Mapping method, apparatus, and system for data transmission

OPTICAL COMMUNICATIONS IN RECIPROCAL NETWORKS BASED ON WAVELENGTH SWITCHING

Optical network real time latency measurement systems and methods

Secure orthogonal frequency multiplexed optical communications

Passive optical network with plural optical line terminals

IN OR RELATING TO MULTICARRIER COMMUNICATION

Data center with free-space optical communications

Distributed antenna system for MIMO signals

Fiber Optic Terminals, Systems, and Methods for Network Service Management

Method for operating transparent node for WDM shared “virtual ring” networks

Signal power based routing in WDM all-optical networks

Photonic network packet routing method and packet router for photonic network

Optical network equipment and optical network

Method for localizing an optical network termination in an optical access network

Failsafe optical splitter and method to isolate faults in a passive optical network

Method for controlling the center wavelength of at least one narrow band optical channel WDM transmitting device in a WDM network and corresponding WDM transmitting device

Color free WDM PON based on broadband optical transmitters

OPTICAL SIGNAL PROCESSING

Power save mode for lightpaths

System and method for distributed fault sensing and recovery

Network design apparatus, method, and computer product

Time and wavelength-shifted dynamic bidirectional system

Apparatus and method for OLT and ONU for wavelength agnostic wavelength-division multiplexed passive optical networks

Time division multiple access over wavelength division multiplexed passive optical network

High-speed optical transponder systems

Port wavelength restriction encoding in wavelength switched optical network

Optical communication apparatus and optical wavelength multiplexing transmission system

Transmission apparatus, transmission controlling method, and optical supervisory channel (OSC) processing apparatus

Method to diagnose an optical communication network

System and method for implementing an automatic discovery function in a DWDM network

OPTICAL NETWORKS

Method and apparatus for realizing source routing in a blocking cross network

MULTIPLE PASSIVE OPTICAL NETWORK SYSTEM

Laser Source Based On Fabry-Perot Laser Diodes And Seeding Method Using The Same

Optical transmission systems, devices, and methods

Optical WDM transmitting and receiving device and optical transceiver unit for this device

Data transmission method and network for transmitting a digital optical signal over optical transmission links and networks

Channel validation in optical networks using multi-channel impairment evaluation

Channel validation in optical networks using multi-channel impairment evaluation

Wireless communication subsystem with a digital interface

Optical-signal-path routing in a multi-chip system

Optical network testing

Network operating system with topology autodiscovery

Optical relay device and optical relay transmission system

Network management system, repeater, and repeating method

Path computation element protocol (PCEP) operations to support wavelength switched optical network routing, wavelength assignment, and impairment validation

Apparatus and method for interference mitigation and channel selection for visible light communication

Communication device for path control, and path control method

Point-to-multipoint optical communication system

Optical transmission equipment and optical add-drop multiplexer

System and method for performing high-speed communications over fiber optical networks

Management system for GPON based services

Seed light module for passive optical network

Upgrading method, system and apparatus of low-density wavelength division multiplexing system

Optical line terminal, passive optical network and radio frequency signal transmission method

System and method for obtaining optical signal information

Optical communication system, optical receiving terminal, and optical signal fault detection method

Multicasting method in network including T-MPLS network and WDM network and apparatus therefor

Packet-optical integrated switch without optical transponder

Wavelength division multiplexed systems with optical performance monitors

Selecting Regeneration Nodes During Path Computation

Method and system for configuring a connection-oriented packet network over a wavelength division multiplexed optical network

Electro-optic conversion module, optic-electro conversion module and conversion methods thereof

Degradation adaptation network

Digital framer architecture with a framing marker

Method and architecture for providing high bandwidth broadband communication to fast moving users

System and methods for quantum key distribution over WDM links

Dynamically Reconfiguring An Optical Network Using An Ethernet Switch

Sliceable router with packet over optical OFDM transmission

Wavelength routing system

Method and network architecture for upgrading legacy passive optical network to wavelength division multiplexing passive optical network based next-generation passive optical network

Methods and systems for the hierarchical mesh restoration of connections in an automatically switched optical network

Method of wavelength alignment for a wavelength division multiplexed passive optical network

Optical node device, network control device, maintenance-staff device, optical network, and 3R relay implementation node decision method

Method and apparatus for displaying and identifying available wavelength paths across a network

Method and apparatus for planning network configuration in an optical network

Channel wavelength assignment with transient reduction

Passive optical network system employing sub-carrier multiplexing and orthogonal frequency division multiple access modulation schemes

Network protection switching mechanisms and methods of network protection

Frame processing apparatus, optical receiving apparatus, optical transceiving apparatus, optical transmission system, and frame processing controlling method

Optical telecommunications network and method

Reduction Of Packet Loss Through Optical Layer Protection

Fault location system and method for OC-N facility degradation

Integration of WDM channels with disparate bit rates

Broadcast design for provisioning reconfigurable optical add/drop multiplexer circuits

Transmission line monitoring system

ONT TEST UNIT

System, method and apparatus for channel estimation based on intra-symbol frequency domain averaging for coherent optical OFDM

Apparatus and method for improving the tolerance of tone-based optical channel monitoring to stimulated Raman scattering

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

Method for mesh optical network service restoration

Intelligent pluggable transceiver stick capable of diagnostic monitoring and optical network management

System and method for configuration discovery in an optical network

Optical communication apparatus and optical add/drop apparatus

Optical transmitting apparatus and optical transmitting and receiving apparatus

Systems and methods for wavelength scanning of in-service wavelength division multiplexing systems

Centralized lightwave WDM-PON employing intensity modulated downstream and upstream

Optical node apparatus

Setting up a circuit in a network

Providing signal reachability information to a network

Providing wavelength connectivity information to a network

OPTICAL COMMUNICATION NETWORK SYSTEM, PARENT STATION OPTICAL COMMUNICATION DEVICE, AND CHILD STATION OPTICAL COMMUNICATION DEVICE

HIGH-SPEED PACKET/ETHERNET DEVICES, METHODS, SYSTEMS AND NETWORKS INCORPORATING TUNABLE PLUGGABLE OPTICS FOR PACKET SWITCHING AND ROUTING FUNCTIONS, AND INCORPORATING GMPS AS THE CONTROL PLANE

Fiber optic multiplex modem

Aggregating Optical Network Device

Network node, buffer device, and scheduling method

Mapping a client signal into transport frames

Method and system for providing fault recovery using composite transport groups

Optical transmission system and method for chromatic dispersion compensation

WDM-Based Sensor System And Sensor Interrogation System

Transamplifier, system and method for amplification of optical signals at plural wavelengths

Directionless optical architecture and highly available network and photonic resilience methods

Methods and apparatus for constructing large wavelength selective switches using parallelism

Prediction of DWDM optical subnetwork degradation

Methods and apparatus for reconfigurable add drop multiplexers

Methods and systems for delivery of multiple passive optical network services

Method, apparatus and system for transmitting Ethernet signals in optical transport network

Sending and receiving information

PON (passive optical network) station side apparatus, PON uplink line communication method, and program recording medium

Systems and methods for parallel multi-core control plane processing

Optical node device, network control device, maintenance-staff device, optical network, and 3R relay implementation node decision method

Optical packet switching apparatus and optical packet switching method

Network design and determination of the arrangement of optical transmission devices in respective network stations

Optical access network system

Method of monitoring traffic in an optical or electronic network with shared resources

Architecture for reconfigurable quantum key distribution networks based on entangled photons by wavelength division multiplexing

METHOD FOR ALLOCATING UPSTREAM TRANSMISSION BANDWIDTH IN WDM-EPON

Optical network

Optical transmission apparatus

METHOD, SYSTEM AND APPARATUS FOR PROTECTING WAVELENGTH DIVISION MULTIPLEX TRANSMISSION

Network system and optical line terminal

Optimization mechanism for use with an optical control plane in a DWDM network

OPTICAL FILTERING APPARATUS AND OPTICAL COMMUNICATION SYSTEM

Method for operating transparent node for WDM shared “virtual ring” networks

System control and management of passive optical networks

Extending routing protocols to accommodate wavelength switched optical networks

Control device and a method for controlling an optical data transmission, and a shared storage network system

System and method for managing wavelength drift in an optical network

Raman cancellation and management in CATV transport and distribution via RF spectrum inversion

Method and apparatus for isolating a location of a fault in a passive optical network

Test Instrument For Testing Multi-Wavelength Optical Networks Using Two Or More Tunable Lasers

Method, device and system for group optical channel shared protection

Method and system for controlling optical networks

Encoding for information needed for routing and wavelength assignment in wavelength switched optical networks

OPTICAL WAVELENGTH MULTIPLEXED TRANSMISSION APPARATUS

Distributed wavelength assignment using signaling protocols in wavelength switched optical networks

TDM/WDMA passive optical network device

Network planning and optimization of equipment deployment

Method and system for power stability control in wavelength division multiplexing networks

Orthogonal frequency division multiple access based optical ring network

Method, system and apparatus for distributing node information

Wavelength division multiplex (WDM) optical network

Wavelength assignment optimization

Method of Operating a Communication System and Communication System for Implementing Such a Method

NETWORK APPARATUS AND METHOD FOR GUARANTEEING ROLE OF OPTICAL SUPERVISORY CHANNEL

SCHEDULING METHOD AND SYSTEM FOR OPTICAL BURST SWITCHED NETWORKS

Optical communication method, optical communication device, and optical communication system

Optical characteristic measuring apparatus

Self checking optical add drop multiplexer

Port-to-port, non-blocking, scalable optical router architecture and method for routing optical traffic

SYSTEM, METHODS, APPARATUSES, AND PROGRAM CODE FOR CAPTURING, STORING, AND RETRIEVING INFORMATION COMMUNICATED IN A NETWORK

System, Device and Method for Managing Alternate Site Switching in an Optical Communication System

SELF-HEALING RING-BASED PASSIVE OPTICAL NETWORK

Optical Wavelength-Division-Multiplexed (WDM) Comb Generator Using a Single Laser

Fiber and wire communication system

Method of providing multi-staged IP filters in a point-to-multipoint environment

Storage area network extension over passive optical networks using parallel signal detection

Backward compatible PON coexistence

STORAGE OVER OPTICAL/WIRELESS INTEGRATED BROADBAND ACCESS NETWORK (SOBA) ARCHITECTURE

Optical node device, network control device, maintenance-staff device, optical network, and 3R relay implementation node decision method

Optical transmission system

Optical bypass method and architecture

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

EFFICIENT PROTECTION MECHANISMS IN A RING TOPOLOGY NETWORK UTILIZING LABEL SWITCHING PROTOCOLS

Optical Path Routing in an Optical Communications Network

System and method for generating a visual representation of a wavelength division multiplexing optical network and nodes thereof

Dual Broadcast and Narrowcast Systems and Methods

Method and System for Designing a Network

System and method for wavelength monitoring and control

High-speed optical transceiver for InfiniBand and Ethernet

Optical cross connect apparatus and network

OPTICAL COMMUNICATION

Optical wavelength multiplexing access system

Optical-wireless hybrid transmission system and optical-wireless hybrid transmission method

ONT discovery in a DWDM hybrid PON LT configuration

Problem detection device at ONU end in PON system and method thereof

SYSTEM AND METHOD FOR NETWORK LAYER PROTOCOL ROUTING IN A PEER MODEL INTEGRATED OPTICAL NETWORK

Optical access network with legacy support

Methods and apparatus for upgrading passive optical networks

Optical switching device

Amplified wavelength broadband video distribution architectures using a phase modulating waveguide

Amplified wavelength broadband video distribution architectures

Optical transmitter system

Optical characteristic measuring apparatus

Passive optical network system for the delivery of bi-directional RF services

DOCSIS COMPATIBLE PON ARCHITECTURE

Long-Reach Wavelength Division Multiplexing Passive Optical Network (Wdm-Pon)

Optical Communication Network and Method of Routing in the Network

Distributed packet switch for use in a network

PASSIVE OPTICAL NETWORK, EQUIPMENT AND METHOD FOR SUPPORTING MULTICAST SERVICE

Interleaving for 10G GPON

System and Method for Wavelength Conversion and Switching

Optical link monitoring system and method for passive optical network

Methods, Systems, and Computer-Readable Media for Ranging a Device in a Point-to-Multipoint Network

Method and system for protecting a communication network, said communication network including a transport network

ASYMMETRIC ETHERNET OPTICAL NETWORK SYSTEM

Methods of placing reconfigurable optical add/drop multiplexers (ROADMS) in a network

Optical network system

Optical path feasibility in an optical communication network

Orthogonal frequency division multiple access (OFDMA) based passive optical network (PON) architecture and its extension to long distance

Passive optical network with partially-tuned lasers

Multi-Rate Multi-Wavelength Optical Burst Detector

Optical communication management systems

Centralized resource management in wavelength selective switch based wavelength cross connect systems

Differential quadrature phase-shift keying transmission system with variable transmission rate

High Bit Rate Packet Generation with High Spectral Efficiency in an Optical Network

Method and apparatus for transmitting multiple channels in a wavelength division multiplexed (WDM) optical communication system with reduced raman crosstalk and nonlinear distortions

Communication network system that establishes communication path by transferring control signal

Method for protecting cross-ring service in optical network

Proactive protection mechanism based on advanced failure warning

Method and Processing Device for Transmitting Ethernet Service Signals in Wavelength Division Multiplexing Networks

Method and system for controlling optical network

Network operating system with distributed data architecture

Optical communication systems and methods of operating such optical communication systems

WDM PON based on DML

Pon System With a Remote Upstream Repeater

REFLECTIVE SEMICONDUCTOR OPTICAL AMPLIFIER-BASED OPTICAL ACCESS NETWORK SYSTEM HAVING IMPROVED TRANSMISSION QUALITY