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US20130236181 MULTI-DEGREE RECONFIGURABLE OPTICAL ADD-DROP MULTIPLEXING  
Various architectures of a multi-degree reconfigurable optical add-drop multiplexer with reduced contention are provided. These architectures allow the degree of contention reduction to be managed...
US20110318011 TENANT ISOLATION IN A MULTI-TENANT CLOUD SYSTEM  
Isolating tenants in a multi-tenant cloud system includes identifying a plurality of tenants in the multi-tenant cloud system, assigning a domain to each tenant of the plurality of tenants based...
US20110211832 2-TO-1 OPTICAL COUPLER THAT UTILIZES D-SHAPED PLASTIC OPTICAL FIBERS (POFs), A BI-DIRECTIONAL OPTICAL COMMUNICATIONS LINK THAT EMPLOYS THE 2-TO-1 POF OPTICAL COUPLER, AND A METHOD  
D-shaped POFs are used to form a 2-to-1 optical coupler. The D-shaped POFs are produced via an extrusion process that is relatively inexpensive to perform and that can be performed with relatively...
US20150063815 FIBER-TO-THE-ANTENNA SYSTEMS AND FIBER OPTIC DEMARCATION UNITS  
A fiber-to-the-antenna (FTTA) system includes a multi-fiber cable configured to be operatively coupled to fiber optic equipment on the ground, and a fiber optic demarcation unit comprising an...
US20140248057 WDM Mux/DeMux on cable and methods of making the same  
Techniques for WDM Mux/DeMux on cable and methods of making the same are described According to one aspect of the present invention, a unit designed to provide multiplexing or demultiplexing...
US20070286604 Fully optical device for breaking down the dynamic range of an optical signal and system for measuring the signal using the device  
Fully optical device for breaking down the dynamic range of an optical signal and system for measuring the signal, using this device. This device comprises fully optical means to break down this...
US20150171969 OPTICAL MODULE, LINE CARD AND OPTICAL COMMUNICATIONS SYSTEM  
Embodiments of the present invention disclose an optical module, a line card and an optical communications system, which are used to implement that the optical module is used on a line card of...
US20110052199 Time-Coherent Global Network  
A network of global coverage, scalable to hundreds of petabits per second, comprises bufferless switch units each of dimension n×n, n>1, arranged in a matrix of ν columns and ν rows, ν>1,...
US20120057875 WAVELENGTH DIVISION MULTIPLEXED PASSIVE OPTICAL NETWORK  
Consistent with the present disclosure, an optical communication system, such as a passive optical network (PON), is provided that includes an optical line terminal (OLT) and a plurality of...
US20120057874 WAVELENGTH DIVISION MULTIPLEXED PASSIVE OPTICAL NETWORK  
Consistent with the present disclosure, an optical communication system, such as a passive optical network (PON), is provided that includes an optical line terminal (OLT) and a plurality of...
US20130077976 TRANSMITTER AND METHOD FOR OPTICAL TRANSMISSION  
An optical multi-wavelength transmitter comprising an optical interleaver with at least a first optical waveguide and a second optical waveguide; a first plurality of microcavity modulators...
US20090034977 MULTIPLEXING HIGH SPEED LIGHT EMITTING DIODES (LEDs)  
A system for multiplexing a plurality of high speed light emitting diodes (HSLEDs) includes a plurality of HSLEDs. Each of the plurality of HSLEDs emits a wavelength of light at a speed greater...
US20130094853 MULTIPLEXER/DEMULTIPLEXER AND MULTIPLEXING/DEMULTIPLEXING METHOD  
In order to realize a multiplexer/demultiplexer in which utilization efficiency of a frequency is high, wavelength characteristics of a transmission band is flat, the cost is low, the size is...
US20080044184 BALANCED BYPASS CIRCULATORS AND FOLDED UNIVERSALLY-BALANCED INTERFEROMETERS  
The invention generally relates, in one aspect, to an interferometer system. The interferometer system includes a splitter/combiner element (SCE), a first bi-directional optical path, and a second...
US20110268447 Optical Wavelength Multiplexing/Demultiplexing Circuit, Optical Module Using Optical Wavelength Multiplexing/Demultiplexing Circuit, and Communication System  
When a conventional synchronized AWG is employed to extend a transmission passband, an increase in loss near the optical center frequency can not be avoided. Because of passband width limit, a...
US20080175592 WPON Architecture using Model-Locked Laser with Nonlinear Dispersive Fiber WDM Light Source and Colorless ONU  
A passive optical network component comprising a model-locked laser, a dispersive nonlinear fiber coupled to the model-locked laser, and a modulator coupled to the dispersive nonlinear fiber,...
US20100238452 Dual Fiber Stretchers for Dispersion Compensation  
An optical system having at least two waveguides that are deformable to provide adjustments to dispersion and path length.
US20090097851 OPTICAL INTERCONNECT SYSTEM PROVIDING COMMUNICATION BETWEEN COMPUTER SYSTEM COMPONENTS  
An optical interconnect system for communication between computer system components is described. The system includes an optical data communication path and a plurality of optical taps, each...
US20120251118 Adaptively Balanced Detector  
Consistent with the present disclosure, a coherent detector is provided that includes an optical hybrid that supplies optical signals including local oscillator light to a balanced detector. The...
US20120213522 GENERATING HIGHER-LEVEL QUADRATURE AMPLITUDE MODULATION (QAM) USING A DELAY LINE INTERFEROMETER AND SYSTEMS AND METHODS INCORPORATING SAME  
In general, optical communication systems and methods may generate higher-level nmQAM from nQAM signals using one or more delay line interferometers (DLIs) arranged in various configurations. The...
US20080085118 High Capacity Optical Frequency Division Multiple Access Passive Optical Network  
A passive optical network (PON) component comprising a first coupler, a second coupler in communication with the first coupler via a plurality of communication paths, a delay module located on one...
US20080187315 Bi-directional optical module with improved optical crosstalk  
The bi-directional optical module, which installs the receiver and the transmitter within one package, is disclosed with an improved optical crosstalk. The optical module provides a lens, a WDM...
US20080310845 HIGH BRIGHTNESS LIGHT SOURCE USING LIGHT EMITTING DEVICES OF DIFFERENT WAVELENGTHS AND WAVELENGTH CONVERSION  
A wavelength division multiplexer and etendue conserved optics are used to combine multiple wavelength LED lights into a combined light. The combined light, with higher intensity and higher power...
US20120328290 QUANTUM COMMUNICATION NETWORK  
A quantum communication system comprising a receiver and a plurality of transmitters, said receiver comprising a detector sub-system, each of said transmitters being configured to emit pulses of...
US20080107417 OPTICAL WAVELENGTH DIVISION MULTIPLEXED MULTIPLEXER/DEMULTIPLEXER FOR AN OPTICAL PRINTED CIRCUIT BOARD AND A METHOD OF MANUFACTURING THE SAME  
The invention provides an optical mux/demux for an optical printed circuit board. The mux/demux comprises: a first waveguide formed on a support layer for carrying a wavelength division...
US20120057876 METHOD FOR AMPLIFYING A BURST OPTICAL SIGNAL, BURST OPTICAL AMPLIFIER AND SYSTEM, AND COMMUNICATIONS SYSTEM  
A method for amplifying a burst optical signal, a burst optical amplifier and system, and a communications system are provided according to embodiments of the present invention. The method...
US20120237223 OPTICAL TRANSCEIVER HAVING OPTICAL RECEPTACLE ARRANGED DIAGONALLY TO LONGITUDINAL AXIS  
An optical transceiver capable of narrowing an extra space for an external optical fiber is disclosed. The optical transceiver of an embodiment provides an optical receptacle with a port, to which...
US20130121693 OPTICAL TRANSMISSION SYSTEM, PUMP-LIGHT SUPPLY CONTROL METHOD, AND PUMP LIGHT SUPPLY APPARATUS  
An optical transmission system for communicating between transmission devices includes a first pump light source that supplies a first pump light, a second pump light source that supplies a second...
US20090196617 SINGLE CORE BIDIRECTIONAL OPTICAL DEVICE  
A single core bidirectional optical device having a light emitting element that is provided on the terminal of one optical fiber and makes light incident to the optical fiber, and a light...
US20130071123 DEVICE AND METHOD FOR CONTROLLING LASING WAVELENGTH OF TUNABLE LASER, AND A WAVELENGTH DIVISION MULTIPLEXED-PASSIVE OPTICAL NETWORK HAVING THE SAME  
The present invention discloses a device and method for controlling a lasing wavelength of a tunable laser, and a wavelength division multiplexed-passive optical network having the same. In a...
US20090269069 PASSIVE WAVE DIVISION MULTIPLEXED TRANSMITTER HAVING A DIRECTLY MODULATED LASER ARRAY  
An wave division multiplexed (WDM) optical transmitter is disclosed including a directly modulated laser array and a planar lightwave chip (PLC) having a plurality of OSRs that receive outputs of...
US20100226649 Multi-Fiber Ten Gigabit Passive Optical network Optical Line Terminal for Optical Distribution Network Coexistence with Gigabit Passive Optical Network  
An apparatus comprising a wavelength division multiplexing (WDM) coupler configured to couple an optical line terminal (OLT) comprising a transmitter and a receiver, wherein the WDM coupler is...
US20150256283 OPTICAL BRANCHING/COUPLING DEVICE AND OPTICAL BRANCHING/COUPLING METHOD  
In order to add a CDC function to a ROADM system currently incompatible with CDC, without requiring any service outage, an optical communication system of the present invention includes: an...
US20090162061 OPTICAL TRANSMISSION SYSTEM AND METHOD  
An optical transmission system for performing frequency synchronization even with a client signal with low frequency accuracy, and for transmitting thereof by accommodating/multiplexing without...
US20100021171 MONOLITHICALLY INTEGRATED MULTI-DIRECTIONAL TRANSCEIVER  
An integrated single-fiber multi-directional transceiver such as a diplexer or triplexer for FTTH applications comprises at least a laser for transmitting a first signal at a first wavelength, a...
US20130195461 ENERGY-EFFICIENT OPTICAL SOURCE  
An optical source includes a set of N light sources that provide a corresponding set of N optical signals having N carrier wavelengths. These optical signals are combined into a seed optical...
US20140193155 Microphotonic Coupled-Resonator Devices  
An optical resonator supports three resonance modes and having third-order optical nonlinearity. One or more waveguides are coupled to the three resonant modes. A waveguide input port is more...
US20120141128 Colorless Dense Wavelength Division Multiplexing Transmitters  
A dense wavelength-division-multiplexing (DWDM) system, comprising a plurality of laser transmitters, a wavelength division multiplexer (WDM) optically coupled to the laser transmitters and to an...
US20110064411 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  
The invention relates to a method for controlling the center wavelength of at least one narrow band WDM optical channel transmitting device in a WDM network. A reflected signal portion of a WDM...
US20130230320 FLEXIBLE OPTICAL MODULATOR FOR ADVANCED MODULATION FORMATS FEATURING ASYMMETRIC POWER SPLITTING  
An apparatus comprising a first optical input coupler, having first and second input ports and first and second output ports. The optical input coupler can be configured to receive an optical...
US20120189309 PROTECTED LIGHT SOURCE FOR MULTIPLE WAVELENGTH DIVISION MULTIPLEXED PASSIVE OPTICAL NETWORKS (WDM-PONS)  
A protected light source for generating seed light for at least two wavelength division multiplexed passive optical networks (WDM-PONs). The protected light source includes an optical coupler...
US20110038635 Colorless Dense Wavelength Division Multiplexing Transmitters  
An apparatus comprising a plurality of laser transmitters each comprising a polarization rotator, a polarization rotator mirror coupled to the laser transmitters, and a multiplexer positioned...
US20100290739 ACTIVE ALIGNMENT METHOD FOR MULTI-CHANNEL OPTICAL TRANSMITTER AND RECEIVER  
An active alignment method for a multi-channel optical transmitter and receiver is disclosed. The active alignment method for a multi-channel optical transmitter includes actively aligning an...
US20150110493 DEMULTIPLEXING DEVICE FOR OPTO-ELECTRONIC TRANSCEIVER  
An optical demultiplexing device includes an optics body, a minor, optical filters, and opto-electronic detectors. The optics body has a fiber port configured to receive an end of an optical...
US20110129227 Wavelength Stabilization and Locking for Colorless Dense Wavelength Division Multiplexing Transmitters  
An apparatus comprising a laser transmitter having a first side and a second side, a filter coupled to the first side, a detector coupled to the second side, and a temperature controller coupled...
US20090169206 METHOD AND A NETWORK FOR PROCESSING OF WAVELENGTH DIVISION MULTIPLEXED DATA  
The invention relates to a network comprising at least one host device having an interface card connected to a backplane of said host device, wherein said interface card comprises at least one...
US20100104290 Optical subassembly manufacturing method, optical subassembly, OSA array, optical interconnecting device, WDM oscillator, and receiving circuit  
An optical subassembly manufacturing method includes forming connecting electrodes and a piece of high-melting-point glass on a wiring substrate; positioning on and connecting to the connecting...
US20090226171 WDM optical transmit-receive device  
A WDM optical transmit-receive device comprises an optical transceiver assembly and an optical receiver assembly. The optical transceiver assembly includes a first optical platform, a first...
US20140212141 LIGHT OUTPUT APPARATUS AND METHOD  
Provided is a light output apparatus for increasing an output of an optical source. The light output apparatus includes a pulse generator generating a plurality of optical pulses, a pulse...
US20100296812 Multi-channel optical device  
The multi-channel optical device includes a demultiplexer in a laser cavity. The demultiplexer is configured to demultiplex a multi-channel light beam into a plurality of channels. The...

Matches 1 - 50 out of 85 1 2 >