CHANNEL BANDWIDTH ALLOCATION METHOD TO INCREASE EFFECTIVE ROADM DWDM NETWORK CAPACITY

WAVELENGTH OPTIMIZATION FOR MULTI-VENDOR RECONFIGURABLE OPTICAL ADD/DROP MULTIPLEXER LINKS

OPTICAL TRANSMISSION APPARATUS AND OPTICAL TRANSMISSION METHOD

DATA PROCESSING METHOD AND RELATED APPARATUSES

Broadband Wavelength Division Multiplexing For Free Space Optical Communications

BEAMFORMING APPARATUS AND METHOD

PERFORMANCE MONITORING DATA INTEGRATED ROUTE PLANNING TOOL FOR RECONFIGURABLE OPTICAL ADD-DROP MULTIPLEXER (ROADM) DENSE WAVELENGTH-DIVISION MULTIPLEXING (DWDM) NETWORKS

OPTICAL ADD DROP MULTIPLEXERS WITH ASYMMETRICAL FILTERING

Optical Network Nodes

Broadband Wavelength Division Multiplexing For Free Space Optical Communications

Bidirectional Optical Time Domain Reflectometer using a single wavelength

OPTICAL TRANSCEIVER BANDWIDTH SCALING THROUGH DIRECT OPTICAL WIRE FIBER TERMINATION

Advertising an IP address of loopback interfaces to participating OSPF areas

OPTICAL TRANSMISSION DEVICE, OPTICAL TRANSMISSION SYSTEM, AND OPTICAL TRANSMISSION METHOD

OPTICAL TRANSCEIVER, OPTICAL COMMUNICATION SYSTEM, OPTICAL TRANSMISSION APPARATUS, METHOD FOR SETTING OPTICAL TRANSCEIVER, AND COMPUTER-READABLE MEDIUM

Bandwidth Optimization for Connection Validation in Pre-Occupied Spectrum

OPTOELECTRONIC MODULE CONFIGURED TO OPERATE SIMULTANEOUSLY AT HIGH-SPEED BIT RATE AND LOW SPEED BIT RATE

OPTICAL FILTER AND METHODS

WAVELENGTH-TUNABLE PLUGGABLE OPTICAL MODULE, OPTICAL COMMUNICATION SYSTEM AND WAVELENGTH CHANGE METHOD OF WAVELENGTH-TUNABLE PLUGGABLE OPTICAL MODULE

APPARATUS AND METHOD FOR MODELLING OF PASSIVE CONNECTORS AND A ONE-TOUCH ROADM OPTICAL NETWORK

DUMMY LIGHT SIGNAL GENERATION APPARATUS AND METHOD, AND RECONFIGURABLE OPTICAL ADD/DROP MULTIPLEXER

SYSTEMS AND METHODS FOR CORRECTING DOWNSTREAM POWER EXCURSIONS DURING UPSTREAM LOADING OPERATIONS IN OPTICAL NETWORKS

Wavelength regeneration in a network

Transmission device management device, transmission device management system, transmission device management method and program

Wavelength division multiplexers for space division multiplexing (SDM-WDM devices)

Routing and regenerator planning in a carrier's core reconfigurable optical network

OPTICAL TRANSMISSION APPARATUS AND CONTROL METHOD OF OPTICAL TRANSMISSION APPARATUS

Method and systems to identify types of fibers in an optical network

Wavelength conversion device and transmission system

Spectrum resource configuration method, network device, and system

Optical system comprising a reconfigurable device and optical system control method

Add/drop multiplexer, network system, transmission method, non-transitory computer readable medium, and management device

High degree optical cross-connect cloud cluster node architecture

Adaptive inline modulation tuning for optical interfaces

Spectrum processing apparatus and reconfigurable optical add-drop multiplexer

PROACTIVE ISOLATION OF TELECOMMUNICATION FAULTS BASED ON ALARM INDICATORS

Channelized optical amplifiers and amplifier arrays

RECONFIGURABLE OPTICAL NETWORKS

Proactive isolation of layer 1 faults based on layer 2 alarm indicators

Add/drop multiplexer, network system, transmission method, non-transitory computer readable medium, and management device

Network switch and optical transponder connectivity verification for wavelength division multiplexing network

Methods and systems relating to optical networks

Multiple wavelength band optical switching unit

Wavelength-tunable pluggable optical module, optical communication system and wavelength change method of wavelength-tunable pluggable optical module

Optical protection switch with broadcast multi-directional capability

Optical transmission system and wavelength allocation method

Method for establishing data model and apparatus

Method and system for latency-aware embedding of a virtual network onto a substrate optical network

Reachability determination in wavelength division multiplexing network based upon fiber loss measurements

Automated system provisioning for programmable photonics flex networks

Transmitting apparatus and transmitting method

Optical add-drop device

Optical transmission device, transmission system, and control method for transmission system

Optical multicast switch with broadcast capability

Method for managing data in a transportation cabin and standardised implementation architecture

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

System for loading fiber optic transport systems for channel additions and deletions

Network switch and optical transponder connectivity verification for wavelength division multiplexing network

Wavelength-tunable pluggable optical module, optical communication system and wavelength change method of wavelength-tunable pluggable optical module

Grid network for layer one optical connectivity from edge to cloud

Optical transceiver and method of controlling optical powers of optical channels

Reconfigurable optical networks

Reachability determination in wavelength division multiplexing network based upon fiber loss measurements

Method and apparatus for optical power controls in optical networks

Method and apparatus for rapid recovery of optical power after transient events in C+L band optical networks

Multi-layer system optimization

Data Transmission Method and Transceiver Facilitating the Switching of Frequency Bands for Optical Channels

System and method for optical system margin allocation

Optical protection switch with broadcast multi-directional capability

Optical power replacement for faulted spectrum in channel holder based optical links

Reconfigurable optical add/drop multiplexer

Methods and systems relating to optical networks

Methods and systems relating to optical networks

Methods and systems relating to optical networks

Network switch and optical transponder connectivity verification for wavelength division multiplexing network

Routing and regenerator planning in a carrier's core reconfigurable optical network

Optical switching systems

Multi-layer system self-optimization

Multi-layer system optimization

Multi-layer system capacity planning

CONSTRUCTION OF OPTICAL NODES USING PROGRAMMABLE ROADMS

Routing and regenerator planning in a carrier's core reconfigurable optical network

Bidirectional communication module

Wavelength regeneration in a network

CWDM transmit module for wavelength tuning and tracking

Methods and apparatus for a colorless directionless and super-channel contentionless (CDSC) optical network architecture

Add/drop multiplexer, network system, transmission method, non-transitory computer readable medium, and management device

Optical modules having an improved optical signal to noise ratio

Optical networking with support for unidirectional optical links

Accurate synchronization as a service

Optical processing

Optical processing

Open, modular, and scalable optical line system

Optical transceiver and method of controlling optical powers of optical channels

Optical add/drop multiplexer and control method thereof, and transceiver

Methods and apparatus for a colorless directionless and super-channel contentionless (CDsC) optical network architecture

Logical control seams in optical networks to improve restoration speed or timing for capacity adds

Reachability determination in wavelength division multiplexing network based upon fiber loss measurements

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

Data center packet optical transport failure protection

Methods and apparatus for logical associations between routers and optical nodes within a wavelength division multiplexing (WDM) system

Tunable ring resonator multiplexers

OPTICAL MODULES HAVING AN IMPROVED OPTICAL SIGNAL TO NOISE RATIO

OPTICAL MODULES HAVING AN IMPROVED OPTICAL SIGNAL TO NOISE RATIO

Optical multicast switch with broadcast capability

Optical transmission apparatus and control method of optical transmission apparatus

OPTICAL MODULES HAVING AN IMPROVED OPTICAL SIGNAL TO NOISE RATIO

OPTICAL MODULES HAVING AN IMPROVED OPTICAL SIGNAL TO NOISE RATIO

OPTICAL MODULES HAVING AN IMPROVED OPTICAL SIGNAL TO NOISE RATIO

OPTICAL MODULES HAVING AN IMPROVED OPTICAL SIGNAL TO NOISE RATIO

Construction of optical nodes using programmable ROADMS

Cross-polarized control channels for loading fiber optic transport systems

Spur removal in pilot-tone OPM

Wavelength-tunable pluggable optical module, optical communication system and wavelength change method of wavelength-tunable pluggable optical module

Method and apparatus for modifying channels in an optical medium

Optical reflective multiplexer chip, laser transmitter chip, and optical transmitter

OPTICAL MODULES HAVING AN IMPROVED OPTICAL SIGNAL TO NOISE RATIO

Methods and apparatus for pre-programming layer-0 service turn up speeds for photonic service provisioning or restoration

Device and method for measuring optical signal-to-noise ratio

Accurate synchronization as a service

Communication apparatus, method of communication and communication system

Use of optical transport network overhead data for encryption

Optical switching systems

Bidirectional optical communication with minimal guard band

Optical transmission/reception device, optical communication system, and optical communication method

OPTICAL TRANSMISSION APPARATUS AND OPTICAL TRANSMISSION METHOD

N-DEGREE CDC WSX ROADM

N-DEGREE CDC WSX ROADM

Methods and apparatus for a flattened data center network employing wavelength-agnostic endpoints

Systems and methods for a preemptive controller for photonic line systems

Power supply path-switching device, power supply path-switching system, and power supply path-switching method

Network management device and network management method

Wavelength-tunable pluggable optical module, optical communication system and wavelength change method of wavelength-tunable pluggable optical module

Fiber-management solution for an optical-network node

Method and apparatus for locking WDM transmitter carriers to a defined grid

High capacity fiber-optic integrated transmission and switching systems

Branching configuration including a cross-coupling arrangement to provide fault tolerance and topside recovery in the event of subsea umbilical assembly failure and system and method including same

Multi wavelength routing plane optical architecture

OPTICAL ROUTER

Photonic layer aware path computation element

Add/drop multiplexer, network system, transmission method, non-transitory computer readable medium, and management device

Method and system for optical performance monitoring

Agile resource on demand service provisioning in software defined optical networks

Cross-polarized control channels for loading fiber optic transport systems

Method and apparatus for routing traffic using asymmetrical optical connections

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

Methods and apparatus for logical associations between routers and optical nodes within a wavelength division multiplexing (WDM) system

Intersecting splitter, and multicast switch and multicast switch module using same

Systems, apparatus, and methods for packetized clocks

Optical devices for the construction of compact optical nodes

Accurate synchronization as a service

Node device and method for controlling node device

System and method for adaptive traffic engineering based on predicted traffic demand

Reconfigurable add/drop multiplexing in optical networks

Bidirectional communication module

NETWORK MANAGEMENT METHOD, NETWORK MANAGING DEVICE, AND RECORDING MEDIUM

Wavelength conflict detection using coded pilot tone

Automated node level fibre audit

Device, system and method for transmitting wavelength division multiplexed optical signal

Distributed spatial mode processing for spatial-mode multiplexed communication systems

Sparse Dispersion Compensation Of Optical Data Transmission Paths

Methods and apparatus for a flattened data center network employing wavelength-agnostic endpoints

System and method for wavelength conversion and switching

Redundancy protection for reconfigurable optical add/drop multiplexing (ROADM) branching unit

Optical transmission/reception device, optical communication system, and optical communication method

TRANSMISSION APPARATUS AND METHOD FOR CONFIRMING CONNECTION OF OPTICAL FIBER

Optical processing

Methods and apparatus for using an embedded optical signal source within an optical node to locate problematic optical spans

Packet routing using optical supervisory channel data for an optical transport system

Optical router having optical routing nodes of four bi-directional optical switches

OPTICAL ADD/DROP MULTIPLEXER AND METHOD FOR ADDING/DROPPING OPTICAL SIGNAL

Triple output photodetector current replicator

High bandwidth photodetector current replicator

OPTICAL TRANSMISSION DEVICE AND METHOD FOR DETERMINING CONNECTION

Free space optical communications network with multiplexed bent pipe channels

Method, apparatus and system for processing flexible-rate signal

Optical add-drop multiplexer

Contentionless NxM Wavelength Cross Connect

Method and apparatus for routing traffic using asymmetrical optical connections

OPTICAL TRANSMITTING DEVICE AND OPTICAL RECEIVING DEVICE

Optical networking with support for unidirectional optical links

System and method for optical network

Superchannel power pre-emphasis based on transmission criteria

Control plane extensions for optical broadcast networks

Power Efficient Multi-Degree ROADM Using Variable Optical Splitter

Network controller having predictable analytics and failure avoidance in packet-optical networks

Optical receiver that has function to detect signal superimposed on optical signal and method for receiving optical signal

Actively monitored optical fiber panel

OPTICAL NETWORK SWITCHING DEVICE

Distributed spatial mode processing for spatial-mode multiplexed communication systems

Method and apparatus for construction of compact optical nodes using wavelength equalizing arrays

System and method for optical network

Optical reception apparatus, optical transmission apparatus, optical communication system, optical communication method, and storage medium storing program

Reconfigurable optical add-drop multiplexer apparatus

Optical transmission apparatus and method for controlling optical power

Method and apparatus for configuring optical network nodes

Optical ring network

Wavelength/bandwidth tunable optical filter and driving method thereof

Multi-flow optical transceiver, multi-flow optical transponder and multi-flow optical node

SYSTEM AND METHOD FOR LOCAL INTERCONNECTION OF OPTICAL NODES

Method and apparatus for construction of compact optical nodes using wavelength equalizing arrays

Signal detection circuit and optical transmission equipment

Optical processing

Network protection through excess directions of reconfigurable optical add/drop multiplexor (ROADM)

Method and apparatus for routing traffic using asymmetrical optical connections

Determining asymmetries in a communication network

SUPPORTING AN ADD-ON REMOTE UNIT (RU) IN AN OPTICAL FIBER-BASED DISTRIBUTED ANTENNA SYSTEM (DAS) OVER AN EXISTING OPTICAL FIBER COMMUNICATIONS MEDIUM USING WAVELENGTH DIVISION MULTIPLEXING (WDM)

Methods, apparatuses and system for monitoring ROADM optical network

Apparatuses, systems, methods, and computer program products for add-drop multiplexing

OPTICAL POWER EQUALIZATION METHOD AND APPARATUS

Distributed spatial mode processing for spatial-mode multiplexed communication systems

Method and apparatus for visually indicating connections between multi-wavelength interfaces and uni-wavelength interfaces

Controlling optical signal power levelling in an optical communication network

Monitoring of communications network at packet and optical layers

High capacity fiber-optic integrated transmission systems

Photonic cross-connect with reconfigurable add-drop-functionality

Flexible channel coordination for multiple optical carrier optical networks

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

Optical transport having full and flexible bandwidth and channel utilization

Optical branching/coupling device and optical branching/coupling method

Wavelength regeneration in a network

Method and apparatus for construction of compact optical nodes using wavelength equalizing arrays

Overlapping spectrum in optical communication

Overlapping spectrum in optical communication

High capacity network node

Optical processing

Transient and switching event stabilization of fiber optic transport systems

System and method for wavelength conversion and switching

Network protection against rogue transmitter

Prioritized optical arbitration systems and methods

Optical drop device, optical drop method, and optical add device

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

Using floating transport card for best effort traffic

Enhanced routing and wavelength assignment techniques for reducing wavelength continuity blocking

METHOD AND APPARATUS FOR VISUALLY INDICATING CONNECTIONS BETWEEN MULT-WAVELENGTH INTERFACES AND UNI-WAVELENGTH INTERFACES

Protection in metro optical networks

Submarine reconfigurable optical add/drop multiplexer with passive branching unit

DYNAMIC CONTROL OF OPTICAL ATTENUATORS TO ENABLE IP MULTICAST

Optical amplification control apparatus and control method of the same

Method and apparatus for construction of compact optical nodes using wavelength equalizing arrays

Optical transmission device, optical transmission system, and test method for alarm function

Reconfigurable Optical Add-Drop Multiplexer

OPTICAL COMMUNICATION APPARATUS AND OPTICAL COMMUNICATION METHOD

Network fragmentation measurement in an optical wavelength division multiplexing (WDM) network

Virtual networking embedding procedure in an optical wavelength division multiplexing (WDM) network

Method, apparatus and system for processing flexible-rate signal

Expandable multicast optical switch

End-to-end carrier frequency control to improve bandwidth utilization in an optical network

Optical drop apparatus, optical add apparatus, and optical add/drop apparatus

System and method for obtaining optical signal information

Bidirectional wavelength cross connect architectures using wavelength routing elements

Multi-flow optical transceiver, multi-flow optical transponder and multi-flow optical node

Automated node level fibre audit

40, 50 and 100 Gb/s optical transceivers/transponders in 300pin and CFP MSA modules

Method of configuring an optical path, a path computation engine and an optical communications network node

Security in multiwavelength optical networks

Determining least-latency paths across a provider network utilizing available capacity

Multi-band reconfigurable optical add-drop multiplexer (ROADM) system

Optical bandwidth manager

Multiband reconfigurable optical add-drop multiplexing with converged signal addition and removal

Spectrum efficient optical transport system with superchannels

Methods and apparatus for a passive access subnetwork

Resilience in an access subnetwork ring

Wavelength tunable array for data communications

Optical switching architectures for nodes in WDM mesh and ring networks

Wavelength multiplexer/demultiplexer apparatus

Multi-degree reconfigurable optical add-drop multiplexing

Method and apparatus for space-division multiplexing systems

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

Determining asymmetries in a communication network

Photonic link information collection and advertisement systems and methods

Switch With Optical Uplink for Implementing Wavelength Division Multiplexing Networks

Optimal combined 2R/3R regenerators placement method for line network topologies in optical WDM networks

Manual ROADM front panel configuration

Method and system of automatic regeneration of optical signals

Optical communication apparatus, optical communication system, and path control method

Optical processing

Interferometer configured for signal processing in an interference path

Transient and switching event stabilization of fiber optic transport systems

Optical add/drop multiplexer

Network element

Optical network with tunable optical light sources

Optical network with switchable drop filters

Method and device for inserting/extracting optical subband into multiband optical OFDM signal

Optical spectrum recovery

Optical junction nodes for use in data center networks

Optical architecture and channel plan employing multi-fiber configurations for data center network switching

SYSTEM AND METHOD FOR DISTRIBUTING DIGITAL SIGNALS OVER LONG-DISTANCE SWITCHED OPTICAL TRANSPORT NETWORKS

Optical transport having full and flexible bandwidth and channel utilization

ROUTING AND VALIDATION OF PATHS IN A WAVELENGTH SWITCHED OPTICAL NETWORK

Light path characterization, traffic protection, and wavelength defragmentation

OPTICAL TRANSMISSION SYSTEM AND OPTICAL TRANSMISSION METHOD

OPTICAL NETWORK WITH LIGHT-PATH AGGREGATION

System and method for establishing secure communications between transceivers in undersea optical communication systems

Optical node apparatus, method for checking connection in node apparatus and program thereof

Digital signal-to-signal beat noise reduction for filter-less coherent receiving system

Optical transmission device and optical filter circuit

OPTICAL RING NETWORKS HAVING NODE-TO-NODE OPTICAL COMMUNICATION CHANNELS FOR CARRYING DATA TRAFFIC

Optical transmission method and apparatus using OFDM

Reconfigurable optical add-drop multiplexer