SUBCHANNEL PHOTONIC ROUTING, SWITCHING AND PROTECTION WITH SIMPLIFIED UPGRADES OF WDM OPTICAL NETWORKS

Method and system for detecting an improper protection in an optical communication network

Protection switching based on SNR calculations

API BASED INTER-NODE CONTROL PLANE COMMUNICATION INFRASTRUCTURE

OPTICAL ACCESS NETWORK

Control plane triggered (CPT) optical protection switching (OPS)

Optical communication system and protection method for optical communication system

Communication station, optical communication system, data transmission method, and storage medium

Service Protection Method and Network Node

Distributed fiber optic sensor placement with shared protection

Communication system and OLT system

Optical communication system and master station

Optical transmission apparatus and optical transmission method

Optical communication system, optical communication apparatus and optical communication method

Matching transmitters with receivers for making network-level assignments

High-density co-packaged optics networking system

Optical communications module link extender, and related systems and methods

Subchannel Photonic Routing, Switching and Protection with Simplified Upgrades of WDM Optical Networks

Path protection method and network node

Method and apparatus for a restoration network with dynamic activation of pre-deployed network resources

Network control method, apparatus, and system

Optical protection switching for single fibre bidirectional WDM optical ring

Optical branching/coupling device and optical branching/coupling method

Virtualized sections for sectional control of optical links

Optical communications module link extender, and related systems and methods

SUBCHANNEL PHOTONIC ROUTING, SWITCHING AND PROTECTION WITH SIMPLIFIED UPGRADES OF WDM OPTICAL NETWORKS

Method and system for assigning resource failure severity in communication networks

Method and apparatus for a restoration network with dynamic activation of pre-deployed network resources

Optical subcarrier dual-path protection and restoration for optical communications networks

Optical subcarrier dual-path protection and restoration for optical communications networks

Optical subcarrier dual-path protection and restoration for optical communications networks

Optical subcarrier dual-path protection and restoration for optical communications networks

Optical subcarrier dual-path protection and restoration for optical communications networks

Optical subcarrier dual-path protection and restoration for optical communications networks

Optical subcarrier dual-path protection and restoration for optical communications networks

Optical subcarrier dual-path protection and restoration for optical communications networks

Techniques for magnetic shielding of an optical isolator to maintain nominal magnetic flux density and a transmitter or transceiver system implementing same

Optical branching/coupling device and optical branching/coupling method

Subcarrier diversity in optical communication systems

Virtualized sections for sectional control of optical links

Feeder fiber and central office redundancy

Optical branching/coupling device and optical branching/coupling method

Optical switch control circuit for optical network protection

Optical transmission system, optical transmission apparatus and transmission method

Virtualized sections for sectional control of optical links

Subchannel photonic routing, switching and protection with simplified upgrades of WDM optical networks

Feeder fiber and central office redundancy

Route switching device, route switching system, and route switching method

Optical subchannel routing, protection switching and security

Heuristic constraint driven optical channel protection

Packet forwarding in RPR network

Subchannel Photonic Routing, Switching and Protection with Simplified Upgrades of WDM Optical Networks

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

A METHOD FOR PROVISIONING OPTICAL CONNECTIONS IN AN OPTICAL NETWORK

Method and apparatus for performing path protection for rate-adaptive optics

Transmission apparatus and network control method

Optical network controller and optical network control method

Transport apparatus, transport system, transport method, and storage medium on which program has been stored

Protection against dual failures for resilient two layer networks

WDM single fiber ring protection

Method and apparatus for performing path protection for rate-adaptive optics

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

Method, topology and point of presence equipment for serving a plurlaity of users via a multiplex module

Network Alarm System Utilizing a Single Sensing Fiber

Optical branching unit and optical branching method

Multi layer network resiliency with software defined orchestration

Adding new alternative paths for restoration in WSON network

Method, topology and point of presence equipment for serving a plurality of users via a multiplex module

Cooperative multi-point (CoMP) in a passive optical network (PON)

Wavelength path switching method, optical communication system, optical communication device, optical repeater, and network management device

Method for sharing optical fiber for cloud-based wired and wireless access network, and system and apparatus for same

Protection for distributed radio access networks

Optical path switching

Fast protection scheme for passive optical network

Optical subchannel routing, protection switching and security

Communication system and method therefor

Subchannel photonic routing, switching and protection with simplified upgrades of WDM optical networks

Method and apparatus for preventing signal interference in a passive optical network

Optical transport switching node with framer

Wavelength division multiplexing network path search method and system

Method for transmitting impairment information, node, and network system

METHOD OF ASSESSING FAILURE IN TRANSMISSION PATH OPTICAL FIBER, AND APPARATUS OF SAME

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

Optical Subchannel-Based Cyclical Filter Architecture

Management, monitoring and performance optimization of optical networks

Subchannel photonic routing, switching and protection with simplified upgrades of WDM optical networks

Optical subchannel routing, protection switching and security

Wavelocker for Improving Laser Wavelength Accuracy in WDM Networks

Optical OADM transmission system with loopback

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

System and method for distributed fault sensing and recovery

Fast protection scheme for passive optical network

Network protection switching

Synchronizing events on a communications network using a virtual command interface

Transient control solution for optical networks

Smart protection escalation mechanism prevention

Optical transmission systems, devices, and methods

Method and device for the 1+1 protection of an optical transmission path

Data processing apparatus and redundancy switching method

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

Transmission path monitoring method and device

Protection device for removing signal interference in a passive optical network

OPTICAL SOURCE LINK TRANSMISSION DEVICE AND METHOD

Network protection using network coding

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

Transient control solution for optical networks

Apparatus for monitoring failure positions in wavelength division multiplexing-passive optical networks and wavelength division multiplexing-passive optical network systems having the apparatus

Optical transmission system

DWDM optical network planning method

Protection method for ring network of optical transmission network

Method and apparatus for measurement of service disruption interval

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

Method and apparatus for supporting operations and maintenance functionality in an optical burst switching network

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

Method for starting lasers in a network

Optical transmission switching device

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

Method for WDM optical networks including alternate routes for fault recovery

Wavelength-division-multiplexing passive optical network utilizing fiber fault detectors and/or wavelength tracking components

System and method for subcarrier modulation in ISM band as supervisory channel

Procedure for sorting flows in a transport network carrying circuit data flows

Configurator tool for optical networking devices

Optical csma/cd technique

Optical network monitoring system

Highly utilizable protection mechanism for WDM mesh network

Process of optical WDM bus networking with DWDM expansion for the method of protected point to point, point to multipoint and broadcast connections

Switching media converter and ring type wavelength division multiplexing passive optical network system using the same

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

Management and control plane redundancy in a disaggregated network element

Method and system for protecting against communication loss in an optical network system

Link discovery, verification, and failure isolation in an optical communication system