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US20120177369 Automatic Power Adjustment System and Method for Optical Network System  
An apparatus and method for automatic power adjustment of an optical network system are provided by the present invention. In the automatic power adjustment system which includes a plurality of...
US20140147114 System and Method for SIEPON Energy Saving Statistics  
A system and method for Service Interoperability in Ethernet Passive Optical Network (SIEPON) energy saving statistics. Energy saving statistics can be collected from a plurality of subordinate...
US20110052188 METHODS AND SYSTEMS FOR OPTIMAL LAUNCH POWER COMPUTATION IN MESHED OPTICAL NETWORKS  
The present invention provides methods and systems for efficiently computing optimal optical launch powers for meshed optical networks. The present invention can be utilized to find optimal launch...
US20120230684 Burst Power Measurements Using Averaged Power Measurement  
An apparatus comprising an individual optical power level calculation (IOPLC) module and a transceiver coupled to the IOPLC module and configured to communicate with a plurality of optical network...
US20140241715 METHOD AND CONTROLLER FOR COMMISSIONING WAVELENGTH DIVISION MULTIPLEXING OPTICAL NETWORK DURING CAPACITY EXPANSION  
The present invention discloses a method and a controller for commissioning a wave division multiplexing optical network during capacity expansion. The method includes: calculating, according to a...
US20140248051 Power Save Mode for Lightpaths  
A method for communicating optically between nodes of an optical network, including forming, between a first node and a second node of the network, a set of lightpaths, each of the set of...
US20130071111 APPARATUS AND METHOD FOR MANAGING DYNAMIC BANDWIDTH ALLOCATION TO SUPPORT LOW-POWER MODE IN PASSIVE OPTICAL NETWORK (PON)  
An apparatus and method for managing a dynamic bandwidth allocation to support a low-power mode, in a passive optical network (PON) are provided. The apparatus may include a power saving mode...
US20110188853 WAVELENGTH DIVISION MULTIPLEX TERMINAL WITH AUTOMATIC CONFIGURATION AND SUPERVISION OF SWITCH CONNECTIONS  
A wavelength division multiplexer terminal with a multiplexer arrangement with a first switching matrix, and a demultiplexer arrangement with a second switching matrix allows flexibility for...
US20080025721 OPTICAL NETWORK TERMINAL POWER FAILURE MANAGEMENT  
Optical network terminal (ONT) power failure management. A system for permitting a customer of a telecommunication company, for whom fiber to the premises (FTTP) has been installed, to control...
US20070196105 Optical network unit and control method thereof  
An optical network unit (ONU) includes an optical receiving module, an energy transforming module, an analog-to-digital transforming module and an adjusting module. The optical receiving module...
US20130108261 Circuit for Monitoring the Receiver of an Optical Transceiver and the Method for Monitoring Burst Mode Optical Power Thereof  
A circuit for monitoring an optical receiver or transceiver, architectures, circuits, and systems including the same, and a method for monitoring received optical power are disclosed. The receiver...
US20120093503 DYNAMICALLY OPTIMIZING A DECISION THRESHOLD VOLTAGE IN AN OPTICAL TRANSPONDER  
A transponder having a dynamic remapping circuit remaps a value of decision threshold voltage Vdtc and a value of optical power RXP to a reference voltage Vref to minimize the bit error rate BER...
US20140112662 MONITORING ENERGY CONSUMPTION IN OPTICAL ACCESS NETWORKS  
An optical access network comprises optical network units connected to a node. A monitoring unit determines information indicative of energy consumption at the optical network unit over a period...
US20120045201 MONITORING ENERGY CONSUMPTION IN OPTICAL ACCESS NETWORKS  
An optical access network (5) comprises optical network units (10) connected to a node (40). A monitoring unit (35) determines information indicative of energy consumption at the optical network...
US20090310962 Service based power and battery backup selection in a multiple dwelling unit  
Heavy users of a Multi-Dwelling Unit Optical Network Terminal (MDU ONT) continuing to use services, such as telephone, data and video, when the MDU ONT is operating from backup power unfairly use...
US20110243555 CHANNEL POWER CONTROL IN AN OPTICAL LINK  
Methods and apparatus for control of variable optical attenuators are described. A method for control of a variable optical attenuator located in an optical link comprising a plurality of optical...
US20110305453 METHOD AND ARRANGEMENT FOR ADAPTIVE DISPERSION COMPENSATION  
A received optical signal is coherently demodulated and converted into electrical complex samples, which are dispersion compensated in a compensation filter. A control circuit calculates...
US20080056713 Efficient Use of Trusted Third Parties for Additional Content-Sharing Security  
Network elements are identified as being connected to optical nodes by instructing two network elements in a spectrum group of the CMTS to transmit at frequencies f1 and f2, respectively....
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...
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...
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...
US20140321848 OPTICAL TRANSMITTER AND METHOD FOR CONTROLLING OPERATION STATE OF OPTICAL TRANSMITTER  
An optical transmitter includes: a ring waveguide; an electrode which is formed near the ring waveguide and is provided with a signal; a first waveguide optically coupled to the ring waveguide; a...
US20150200728 SCHEME FOR REMOTE CONTROL OF THE OUTPUT POWER OF A TRANSMITTER IN A SMART SFP TRANSCEIVER  
A scheme is described for remote control of the output power of a transmitter in a smart SFP (or SFP+, or XFP) duplex (or BiDi, or SWBiDi) transceiver in a communication system using an operating...
US20120039602 Method and Apparatus for Detecting Rogue Optical Network Unit in Passive Optical Network  
A method performed in an optical line terminal (OLT) in a passive optical network (PON) for detecting a rogue optical network unit (ONU) operating among a plurality of ONUs in the PON. The OLT...
US20140355982 Optical Network as a Single Managed Entity  
An example embodiment involves a method for adjusting an operating parameter of a node in an optical network which comprises a plurality of nodes, the method comprising the steps of: measuring at...
US20150010303 WAVEFORM RECONSTRUCTION DEVICE, WAVEFORM RECONSTRUCTION SYSTEM, AND WAVEFORM RECONSTRUCTION METHOD  
A waveform reconstruction device (140) includes: a phase-spectrum calculation unit (143) which (i) simulates, for each intensity of an input optical signal assumed to have a given phase spectrum,...
US20110044685 Optical network unit having automatic shutdown  
An optical network unit useful in a passive optical network has capability for automatic shutdown upon detection of a malfunction, thereby protecting the integrity of upstream data transmitted in...
US20090214204 Optical network monitoring using amplifier modeling  
Example embodiments include a method for monitoring an optical network. The method provides received network data to a network model, which determines if there is an inconsistency within the...
US20110129217 Transmitter Disabling Device  
An optical transmitter disabling device for controlling an optical transmitter, particularly of an optical network termination node of a passive optical network comprising a monitoring module and...
US20110311223 WAVEFORM RECONSTRUCTION DEVICE, WAVEFORM RECONSTRUCTION SYSTEM, AND WAVEFORM RECONSTRUCTION METHOD  
Provided is a waveform reconstruction device capable of easily reconstructing an accurate time waveform of an optical signal without using an ultrafast time gate or a reference light source. A...
US20140153921 METHOD AND APPARATUS FOR DETECTING UNCHARACTERISTIC POWER LEVEL CHANGES OF AN OPTICAL SIGNAL  
A monitoring apparatus for detecting uncharacteristic short-term power level changes of an optical signal transmitted through an optical fiber, said monitoring apparatus comprising a power level...
US20090279886 Burst-mode data recovery for multi-gigabit passive optical networks  
In a TDMA optical network, a clock data recovery module uses signal oversampling and preamble correlation together with enhanced performance modules to extract additional data from the upstream...
US20140112660 SYSTEMS AND METHODS FOR CHANNEL ADDITIONS OVER MULTIPLE CASCADED OPTICAL NODES  
A method, an optical node, and an optical network include a power controller configured to bring channels in-service in parallel over multiple cascaded optical nodes quickly, efficiently, and in a...
US20130336650 Enhanced Received Signal Power Indicators for Optical Receivers and Transceivers, and Methods of Making and Using the Same  
An optical transceiver and/or optical network, and methods of monitoring optical transceivers, may be useful for increasing the dynamic range and/or determining the received signal strength and/or...
US20130202293 Systems and Methods for Ethernet Passive Optical Network Over Coaxial (EPOC) Power Saving Modes  
Systems and methods for Ethernet Passive Optical Network Over Coaxial (EPOC) power saving modes are provided. The EPOC power savings modes allow an EPOC coaxial network unit (CNU) to enter a sleep...
US20140376907 MITIGATION OF OPTICAL SIGNAL TO NOISE RATIO DEGRADATION ARISING FROM POLARIZATION DEPENDENT LOSS  
Methods and systems for mitigating degradation of an optical signal-to-noise ratio (OSNR) induced by polarization dependent loss (PDL) in an optical network include determining an increase in...
US20100260497 METHOD OF SAVING POWER IN OPTICAL ACCESS NETWORK  
Provided is a method of reducing power consumption of an optical access network (OAN) as much as possible by configuring an optical line terminal (OLT) and optical network terminals (ONTs) in the...
US20140186032 OPTICAL BENCH APPARATUS HAVING INTEGRATED MONITOR PHOTODETECTORS AND METHOD FOR MONITORING OPTICAL POWER USING SAME  
Optical bench structure provides a platform for integrating optical transmitters, particularly Vertical-Cavity Surface-Emitting Lasers (VCSELs), with monitor photodetectors. A substrate with...
US20110076014 Transmission Network Having an Optical Receiver that Utilizes Dual Power Pins and a Single Status Pin to Lower Power Consumption, Lower Manufacturing Cost, and Increase Transmission Efficiency  
A communication network is provided for interconnecting a network of digital systems, such as multimedia devices. Each node of the communication network may include a receiver and a transmitter....
US20130084065 OPTICAL TRANSMITTER AND WAVEFORM COMPENSATION METHOD  
An optical transmitter includes an EA modulator, a photocurrent detection circuit, a modulator drive circuit, and a CPU. The EA modulator converts an input signal into an optical signal and...
US20150117858 SYSTEMS AND METHODS FOR CAPACITY CHANGES IN DWDM NETWORKS INCLUDING FLEXIBLE SPECTRUM SYSTEMS  
A method, a controller, and an optical section include performing an analysis to determine an amount of power offset on any in-service channels in an optical section due to a capacity change with...
US20080304824 OPTICAL LINK QUALITY MONITORING IN A COMPUTER NETWORK  
In one embodiment, a local network device collects local optical power information for at least one of either a local optical transmit interface and a local optical receive interface of the local...
US20110164874 Method for optimally adjusting a decision level of a receiver and device thereof  
The present invention discloses a method and a device for optimally adjusting the decision level of a receiver, wherein the method includes: monitoring optical power received by an optical...
US20110091207 Power Monitoring Photodiode Array with Integrated, Current Sourced Reference Photodiode  
A photodiode array includes a plurality of monitoring photodiodes capable operating in a voltage mode configuration each able to provide a voltage indicating an intensity of an incident light....
US20150171957 OPTICAL RECEIVER SENSITIVITY SYSTEM  
A system includes a detector array having a plurality of level detectors to monitor an optical input signal. Each level detector of the detector array operates in a different operating range, and...
US20080304825 Methods, Systems, and Computer-Readable Media for Providing Notification of a Power Failure  
Methods, systems, and computer-readable media provide for notifying an optical line termination (OLT) of a power failure. According to embodiments, a method for notifying an OLT of a power failure...
US20110222850 SELF TEST OF A DUAL POLARIZATION TRANSMITTER  
A method of testing a dual-polarization optical transmitter comprising a pair of polarization transmitters for respectively generating first and second polarization signals, and a polarization...
US20130071109 Automatic Gain Control for High-Speed Coherent Optical Receivers  
Feed-forward and feedback strategies are used to control local oscillator power and transimpedance amplifier gain in a high-speed coherent optical receiver.
US20110170863 PHASE MODULATED SIGNAL RECEIVER  
A phase modulated signal receiver includes an operation part and a control part. An input power of a received light signal is measured based on current monitored by a monitor circuit. The...
US20130251365 OPTICAL POWER MONITOR, OPTICAL POWER CONTROL SYSTEM AND OPTICAL POWER MONITOR METHOD  
An optical power monitor that detects optical power of respective wavelengths of a signal light in a wavelength multiplexing system, includes: a light emitter configured to superimpose a frequency...

Matches 1 - 50 out of 300 1 2 3 4 5 6 >