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US20100310251 |
Optical Transmission Systems, Devices, and Methods
An optical system with a first and second network tiers. The first network tier includes a plurality of major nodes optically interconnected by at least one transmission path. The second network...
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US20120141117 |
Network Protection Method and Device
The invention discloses a network protection method and device, the method comprises: initiating a protection configuration request through a control plane of an automatically switched optical...
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US20120082469 |
AUTOMATIC WAVELENGTH CONFIGURATION
An optical transmitter may include a tunable signal source configured to emit a signal to an optical fiber system; a back scatter detector for measuring an amount of back scatter observed following...
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US20110069961 |
DIGITAL MULTIMETER HAVING REMOTE DISPLAY WITH AUTOMATIC COMMUNICATION BINDING
An electrical test instrument comprising a base unit having a first communication address. A remote display unit separate from the base unit and having a second communication address is also...
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US20080310852 |
Misalignment tolerant free space optical transceiver
In accordance with an aspect of the invention, a system has a transmitter and a receiver, where the transmitter includes a beam source and an optical element. The beam source produces a beam that...
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US20100080567 |
PARALLEL OPTICAL TRANSCEIVER MODULE HAVING A BALANCED LASER DRIVER ARRANGEMENT
A parallel optical transceiver module is provided that has a balanced laser driver arrangement. The balanced laser driver arrangement of the invention includes at least two laser diode driver ICs,...
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US20110268439 |
Selecting an Optical Path for a New Connection with the Minimum Number of Optical Regenerators
Techniques are provided for receiving a connection request at a first network node configured to request a connection from the first network node to a second network node. At the first network...
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US20120275797 |
POLARIZATION SCATTERING COMPENSATION DEVICE AND POLARIZATION SCATTERING COMPENSATION METHOD
Polarization scattering compensation device and method are disclosed. In the device, a time sequence alignment unit aligns time sequences of signals in the first and second polarization state...
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US20100183311 |
HIGH-DEGREE RECONFIGURABLE OPTICAL ADD-DROP MULTIPLEXING SYSTEMS USING BI-DIRECTIONAL WAVELENGTH SELECTIVE SWITCHES
The present disclosure provides high-degree reconfigurable optical add-drop multiplexing (ROADM) systems using bi-directional wavelength selective switches (WSSs) and optical circulators. A single...
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US20080292315 |
Anti Clipping Circuit For Laser Transmitters
This anti clipping circuit is for a laser transmitter used to transmit sub-carrier multiplexed signals for CATV applications. The circuit design is based on actual clipping measurements showing the...
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US20120155860 |
OPTICAL PACKET SWITCHING SYSTEM AND OPTICAL PACKET TRANSMITTER DEVICE
An optical packet switching system includes: an optical packet transmitter device configured to transmit an optical packet signal; and an optical packet switching device configured to route and...
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US20080205885 |
Optical Network Monitor Pcb
A fiber pigtailed network monitoring module incorporating an optical printed circuit board on which a signal-transferring connection is remotely actuated between electronic components mounted on...
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US20120243871 |
ONU WITH WIRELESS CONNECTIVITY CAPABILITY
The embodiments herein relate to a method in an optical network unit (103), referred to as an ONU, for providing wireless connectivity capability to the ONU (103). The ONU (103) is comprised in a...
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US20100119223 |
Optical Safety Implementation in Protection Switching Modules
Optical safety functions are incorporated into protection switching modules which maintain redundant pathways to avoid interruptions in optical network connections. The optical safety functions...
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US20110150470 |
PROCEDURE, APPARATUS, SYSTEM, AND COMPUTER PROGRAM FOR NETWORK PLANNING
A method, apparatus, system, and computer program, for operating a network planning tool. The method includes recognizing at least one predetermined criteria being satisfied or triggered, and...
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US20090245786 |
OPTICAL COMMUNICATION SYSTEM, METHOD OF MEASURING OPTICAL TRANSMISSION LINE IN THE OPTICAL COMMUNICATION SYSTEM, TRANSMITTING STATION, AND RECEIVING STATION
According to halt of a Raman pumping light source, a transmitting light power of a first light which is subject to receive a Raman gain is controlled to increase. In this state, a first...
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US20130039645 |
Tunable Coherent Optical Time Division Reflectometry
An apparatus comprising an optical transmitter, a coarse tuner coupled to the optical transmitter and having a first tuning range, a fine tuner coupled to the optical transmitter and having a...
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US20100098413 |
PERFORMANCE MONITORING IN PASSIVE OPTICAL NETWORKS
One embodiment provides a system for performance monitoring in a passive optic network (PON). The system includes an optical line terminal (OLT) and an optical network unit (ONU). The OLT includes...
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US20130058648 |
Variable Rate Optical Transmitter Based on All-Optical OFDM Super-Channel Technology
The present invention is directed to a method including determining an appropriate power level for a phase modulator for an optimum number of subcarriers; and applying the determined appropriate...
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US20100040379 |
Rotary joint
A rotary transmitter having a first light-conducting hollow body, at least one transmitter for generating at least one optical signal and at least one receiver for receiving the optical signal is...
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US20120294604 |
OPTICAL PROTECTION AND SWITCH ENABLED OPTICAL REPEATING
An optical transmission system or its constituent repeater disposed optically between two terminals. The system includes at least two parallel optical paths between a first node and the repeater...
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US20090238572 |
REMOTE CONTROL DEVICE AND REMOTE CONTROL SYSTEM
A remote control device controls a medical device or a medical control device for controlling the medical device by infrared light communication, and includes: an infrared light emission unit for...
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US20110052205 |
Combined optical and electrical interconnection module and method for producing same
A combined optical and electrical interconnection module includes a flat cable comprising an optical transmission line and an electrical wire, and a printed circuit board including a light...
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US20100322618 |
METHODS, SYSTEMS, AND COMPUTER READABLE MEDIA FOR PROVIDING VIRTUAL 1:N AUTOMATIC PROTECTION SWITCHING (APS) AND DYNAMIC, IN SERVICE CONFIGURATION CHANGE FOR OPTICAL NETWORK INTERFACE EQUIPMENT
The subject matter described herein includes providing virtual 1:N automatic protection switching and dynamic, in service configuration change for optical network interface equipment. According to...
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US20060165418 |
Optical signal switching network using method of sub-harmonic embedded clock transmission
An optical signal switching network having a transmitter and a receiver, wherein the transmitter includes a data generator for generating a data signal and a clock signal having the same frequency...
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US20080085125 |
All-optical regenerator and optical network incorporating same
The present invention provides an optical networking device for re-amplifying, re-shaping, and re-timing an optical signal, as well as providing distortion compensation and performance monitoring...
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US20120070150 |
Greedy Channel Selection Procedure for the Routing, Wavelength Assignment and Spectrum Allocation in the Flexible Optical WDM Networks
The inventive method, implemented in an optical flexible wavelength division multiplexing FWDM network, includes finding a connection route in an optical FWDM network on which a channel with...
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US20130004164 |
Optical Trasnsport Network Alarms
An optical transport network signal (OTM) comprising at least one optical channel is received at a first network equipment. The optical transport network signal (OTM) is processed to extract...
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US20120308238 |
DISTRIBUTED ANTENNA SYSTEM
A distributed antenna system includes a first antenna disposed covering a predetermined communication range, the first antenna carrying out a communication at least at a low-frequency band, and a...
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US20130004174 |
LINK SETUP METHOD FOR WAVELENGTH DIVISION MULTIPLEXING WAVELENGTH PASSIVE OPTICAL NETWORK(WDM PON) SYSTEM
A link setup method for a wavelength-division-multiplexing passive optical network (WDM PON) system. The system includes a service providing device, a local node, and a plurality of subscriber...
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US20080013962 |
Pulse-Modulated Signal Demodulation Circuit, and Photoreceiver Circuit and Electric Appliance Provided Therewith
According to the invention, a pulse-modulated signal demodulation circuit has a first integration circuit, a second integration circuit, and a third integration circuit. The first integration...
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US20090226174 |
Prediction of DWDM optical subnetwork degradation
A system and method is disclosed that parses WDM subnetworks and collects TL1 Performance Monitoring (PM) parameter data from subnetwork network elements (NEs) and applies a set of comparisons to...
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US20120082451 |
Method and System for Arranging Link Resource Fragments
The present invention relates to the field of optical communication and provides a method and system for arranging link resource fragments. The method comprises: configuring cascade services in a...
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US20090060513 |
REMOTE OPTICAL CONTROL OF ELECTRICAL CIRCUITS
An optical controlling circuit and an electrical controlled circuit such as a motor control circuit are interconnected by an electro-optic interface. A passive optical switch located in the optical...
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US20120328289 |
Devices, Systems and Methods for Run-Time Reassignment of a PHY to MAC Devices Interconnect
Devices, systems and methods for run-time reassignment of the interconnection between devices pertaining to a Physical (PHY) layer and devices pertaining to a Media Access Control (MAC) layer, with...
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US20090190928 |
METHOD AND ARRANGEMENT FOR SWITCHING A RAMAN PUMP LASER ON AND/OR OFF
Optoelectrical conversion of the received optical service signal (OSS), bandpass filtering and subsequent squaring produce a spectral line at the clock frequency (fT). This clock line (TL) is...
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US20070253713 |
Solar Blind Ultraviolet Communication System for Unattended Ground Sensor Network
Solar blind ultraviolet communication systems can provide short to medium range non line-of-sight and line-of-sight links which are covert and insensitive to meteorological conditions. Operation in...
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US20120114340 |
OPTICAL TRANSMITTER AND INTERCONNECTING CIRCUIT BOARD
An optical transmitter including: an optical module; an interconnecting circuit board configured to be electrically coupled to the optical module; and a printed circuit board configured to be...
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US20120141132 |
APPARATUSES, SYSTEMS, AND METHODS FOR FACILITATING OPTICAL COMMUNICATION BETWEEN ELECTRONIC DEVICES
Active optical cable assemblies, and systems, methods, and adapter modules and integrated circuits for facilitating communication between a host and a client device over a fiber optic cable are...
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US20120141129 |
SIGNAL TRANSMISSION METHOD FOR PEER-TO-PEER OPTICAL NETWORK AND SYSTEM THEREOF
A signal transmission system for a peer-to-peer optical network. The system includes an optical line terminal, an optical distribution node, and a plurality of optical network units. The optical...
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US20050238361 |
Optical transponder with equipment failure protection
A dual E/O transmitter module optical transponder comprising an E/O receiver module capable of converting an ingressing optical signal from an optical signal source to an electrical signal, a pair...
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US20080193128 |
COMPUTER ETHERNET CARD BASED ON PASSIVE OPTICAL NETWORK
The present invention relates to a computer Ethernet card used for a passive optical fiber access network and its data transmission terminals. A hardware network system that is based on a PON...
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US20090047021 |
Integrated overlay card, optical line terminal and system with integrated overlay card, and methods for operating the system and terminal
An integrated overlay card, an optical line terminal with an integrated overlay card, and a method for operating an optical network. The integrated overlay card may fit at least partially within...
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US20120201539 |
PHOTONIC ROUTING SYSTEMS AND METHODS FOR LOOP AVOIDANCE
A photonic network includes a plurality of nodes each supporting add and drop of at least Y wavelengths, a plurality of optical links interconnecting the plurality of nodes, the plurality of...
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US20100329684 |
CHANNEL EXPRESS/ADD OPTICAL MODULE AND CHANNEL EXPRESS/ADD METHOD IN OPTICAL ADD/DROP MULTIPLEXER NODE USING THE SAME
Provided are a channel express/add optical module and a method of channel express/add in an optical add/drop multiplexer node using the channel express/add optical module. The channel express/add...
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US20050254824 |
Synchronized Digital Clock System
A system for updating clocks required to keep very accurate time. A first clock receives infrared time correction from a second clock serving as a calibration device. The first clock, upon receipt...
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US20120308225 |
Method for Establishing an Inter-Domain Path that Satisfies Wavelength Continuity Constraint
The present invention provides a method for establishing an inter-domain path that satisfies wavelength continuity constraint. The fPCE stores a virtual topology comprised by border nodes of all...
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US20090220227 |
SMALL FORM FACTOR PLUGGABLE (SFP) OPTICAL TRANSCEIVER MODULE AND METHOD
A small form factor pluggable (SFP) optical transceiver module and method for performing optical communications are provided. The SFP optical transceiver module has a housing to which a duplex...
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US20120051756 |
DUAL POLARIZATION TRANSCEIVER
The invention provides a dual polarization transceiver (1) being switchable between two operation modes, wherein in a first operation mode an optical QAM—(Quadratur Amplitude Modulation) signal h...
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US20100215361 |
CONFIGURATION OF PASSIVE OPTICAL NETWORKS INCLUDING CASCADED ARRAY WAVEGUIDE GRATINGS
Techniques for partitioning and/or combining at least a portion of an optical network tree including one or more array waveguide gratings (“AWGs”) and fibers in wavelength division multiplexing (“W...
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