Matches 1 - 50 out of 197 1 2 3 4 >


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US20150132011 Optical Cable Connector  
Methods, systems, and devices are disclosed for interconnecting two optical fibers using a protective insert, wherein the protective insert includes a connective segment that provides optical...
US20140294379 METHOD AND APPARATUS FOR USING CREDITS TO DETERMINE CABLE LENGTH  
Various systems and methods for using credits to determine cable length are described herein. A number of available credits is determined at a transmitter, the credits being received at the...
US20130223849 Pre-Distortion Techniques for Optical Modulators to Improve Constellation Point Separation  
According to a first aspect, techniques are provided to optimize a Mach-Zehnder modulator drive waveform by distorting the outer modulation levels of the waveform, thereby equalizing eye openings...
US20140355998 METHOD AND DEVICE FOR SYNCHRONIZING ENTANGLEMENT SOURCES FOR A QUANTUM COMMUNICATION NETWORK  
According to one aspect, the invention relates to a device (20) for synchronizing optical pumping entanglement sources (141, 142) in a quantum communication network, including a pulsed light...
US20130322887 OPTICAL COMMUNICATIONS CARD, AN OPTICAL COMMUNICATIONS SYSTEM, AND METHODS AND APPARATUSES FOR PROVIDING HIGH-DENSITY MOUNTING OF OPTICAL COMMUNICATIONS CARDS  
An optical communications card is provided that has multiple parallel optical communications modules mounted on one or both sides of the card. A plurality of the optical communications cards can...
US20120134678 SYSTEM FOR PROVIDING PHYSICALLY SEPARATED COMPUTE AND I/O RESOURCES IN THE DATACENTER TO ENABLE SPACE AND POWER SAVINGS  
An embodiment of a system and method disaggregate I/O resources from a server's compute resources, such as CPU and memory, by moving the server's local I/O devices to a remote location apart from...
US20080240726 Phase coded non-return-to-zero optical transmitter  
Embodiments of the present invention provide a method and apparatus for producing a phase coded non-return-to-zero (PC-NRZ) optical signal. The method includes providing an input optical signal;...
US20140133864 Edge coupling of optical devices  
A system includes optical modules. Each module includes a different base and one or more module waveguides on the base. Module waveguides from different modules are aligned such that the aligned...
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...
US20060024062 Pre-compensation for modulator distortion in optical systems  
System, method, and computer program product for accessing values from a multi-port memory having a plurality of read ports, each value representing a modulator distortion compensation value...
US20110239266 Fiber to the Premise Service Disconnect Via Macro-Bending Loss  
It is determined that service is to be disconnected for at least a first subscriber of a video content network employing at least one fiber optic cable. The service to the at least first...
US20140270802 QUANTUM SYNCHRONIZATION FOR CLASSICAL DISTRIBUTED SYSTEMS  
A quantum mechanical synchronization system for a classical distributed computing system. Einstein-Podolsky-Rosen links are established providing entangled photons to provide the quantum...
US20130084076 METHOD FOR OPTICAL PHASE MODULATION, Optical Phase Modulator AND OPTICAL NETWORK USING THE SAME  
An optical phase modulator based on the principles of stimulated Brillouin scattering is disclosed. The optical phase modulator uses a pump wave and a probe wave counte-propagating in an optical...
US20110318016 CROSS-TALK REDUCTION IN A BIDIRECTIONAL OPTOELECTRONIC DEVICE  
A bidirectional optoelectronic device comprises a photodetector and a light source on a waveguide substrate, and a drive circuit for the light source. The waveguide substrate can include light...
US20100003033 Transmission of Audio Signals Via Fibre Optic  
A system received an analogue electrical signal having content between 20 Hz and 20 kHz representing an analogue audio signal; amplitude modulates the analogue electrical signal onto an optical...
US20070154222 Half duplex type optical connection structure and optical device suitable for the same  
Disclosed is an optical connection structure of half-duplex transmission type and an optical device suitable for the same. The optical connection structure of half-duplex type comprises two or...
US20100007520 OPTICAL TELEMETRY SYSTEM AND METHOD FOR ELECTRO-MECHANICAL SWITCHES  
A system or method of verifying a new contact position of a multi-pole electromechanical switch having a plurality of contact positions is disclosed. The switch is caused to move to a new contact...
US20100028018 Free-Space Optical Interconnect With Asymmetric Light Pipes  
An optical interconnect system includes components such as circuit boards, server blades, or a backplane with respective light pipes for an optical signal. The light pipe in a component...
US20090220246 OPTICAL RECEIVER AND A FREE-SPACE OPTICAL COMMUNICATIONS USING THE SAME  
A device for phase distortion compensation across an optical beam is provided. The device is a part of an optical receiver, which can be used in free space optical communications, remote sensing,...
US20060285852 Integrated maximum a posteriori (MAP) and turbo product coding for optical communications systems  
An integrated maximum a posteriori equalization and turbo product coding (IMAP-TPC) system for optical fiber communications systems (OFCS) is provided that uses probabilistic characterization of...
US20080267635 QUANTUM CRYPTOGRAPHY COMMUNICATION APPARATUS AND COMMUNICATION TERMINAL  
In a quantum cryptography communication apparatus, a light pulse is generated by a light source and split into a signal light pulse and a reference light pulse on a receiving side. The signal...
US20070065154 Methods and system for quantum key distribution over multi-user WDM network with wavelength routing  
A system and a method for quantum key distribution over a multi-user wavelength division multiplexing (WDM) network are disclosed. The system comprises a tunable or multi-wavelength transmitter; a...
US20110020008 PHOTONIC BANDGAP FIBERS  
Included among the many structures described herein are photonic bandgap fibers designed to provide a desired dispersion spectrum. Additionally, designs for achieving wide transmission bands and...
US20100226657 All Optical Fast Distributed Arbitration In A Computer System Device  
Various embodiments of the present invention are directed to systems and methods for all optical distributed arbitration for computer system components (1801-1804) communicatively coupled via a...
US20140056596 OPTICAL FIBER AND OPTICAL TRANSMISSION SYSTEM  
An inexpensive low-attenuation optical fiber 1 suitable for use as an optical transmission line in an optical access network is a silica based glass optical fiber and includes a core 11 including...
US20150071651 MULTI-LEVEL CODING AND DISTORTION COMPENSATION  
An optical communication system, a transmitter, a receiver, and methods of operating the same are provided. In particular, a transmitter is disclosed as being configured to encode optical signals...
US20100028017 OPTICAL AND ELECTRIC SIGNALS TRANSMISSION APPARATUS, OPTICAL AND ELECTRIC SIGNALS TRANSMISSION SYSTEM, AND ELECTRONIC EQUIPMENT USING SUCH A SYSTEM  
An optical and electric signals transmission apparatus includes a receptacle having a light-receiving element and/or a light-receiving element and electrical connecting terminals, a plug having...
US20120033979 OPTOELECTRONIC COMMUNICATIONS ASSEMBLY HAVING AN ELECTRICAL AND OPTICAL INTERFACE  
In one example embodiment, an optoelectronic communications assembly having an optical receiver or an optical transmitter includes an optical interface disposed at an end thereof and through which...
US20080298802 OPTICAL SIGNAL MEASUREMENT DEVICE  
A device connects to a male network connector of a network conduit, and connects to a female network connector of the network conduit. The female network connector is capable of communicating with...
US20110164882 SINGLE-FIBER PROTECTION IN TELECOMMUNICATIONS NETWORKS  
A solution for detecting and recovering from a failure in a protected single-fiber passive optical network. A detector is used to detect the degradation in power level of optical signals....
US20130308958 Method and System for Implementing Time Synchronization  
The present disclosure discloses a method and a communication system for time synchronization. The system includes at least one base station, an optical line terminal OLT, and a fiber for...
US20110129229 OPTICAL RECEIVER DEVICE  
In a receiver suitable for an optical fiber link and comprising an optical receiver unit (1), which includes a radiation-sensitive detector (4) and a signal processing circuit (6,8), and an...
US20090279899 NON-CONTACT TRANSMISSION OF OPTICAL SIGNALS  
The present embodiments relate to non-contact transmission of optical signals by an optical waveguide which is provided with a material of which the electron arrangement is able to be put into...
US20090034983 OPTICAL TRANSMITTER-RECEIVER SUBASSEMBLY AND OPTICAL TRANSMITTER-RECEIVER MODULE  
An optical transmitter-receiver subassembly including a light-emitting element which converts a current into an output optical signal, a light-receiving element which converts an input optical...
US20110052204 Intentionally Skewed Optical Clock Signal Distribution  
Embodiments of the present invention relate to systems and methods for distributing an intentionally skewed optical-clock signal to nodes of a source synchronous computer system. In one system...
US20080002971 Optical telecommunications network terminal, an installation including the terminal, and a method of detecting a break in optical transmission means  
An optical telecommunications network terminal (12) includes a device (22) for generating downlink optical signals and a device (48) for receiving uplink optical signals, the optical signals being...
US20110280584 OPTICAL FIBER WITH SUPPRESSED STIMULATED BRILLOUIN SCATTERING  
The present invention relates to optical fibers useful for the transmission of electromagnetic energy at such high levels of power that stimulated Brillouin scattering (SBS) may be of importance....
US20060251424 Stabilized optical fiber continuum frequency combs using post-processed highly nonlinear fibers  
An arrangement for generating beat notes with a relatively high signal-to-noise ratio (SNR) utilizes a pulsed laser source coupled into a section of post-processed highly-nonlinear optical fiber...
US20100150552 OPTICAL/ELECTRICAL COMPOSITE CABLE, OPTICAL/ELECTRICAL COMPOSITE CABLE CONNECTION DEVICE AND OPTICAL/ELECTRICAL COMPOSITE CABLE DRIVE METHOD  
An optical/electrical composite cable in which a first connector having an optical transmission unit is connected to a second connector having an optical reception unit via an electrical wire and...
US20110211842 High-Speed Receiver Architecture  
A receiver (e.g., for a 10G fiber communications link) includes an interleaved ADC coupled to a multi-channel equalizer that can provide different equalization for different ADC channels within...
US20070081825 MULTIMODE DISTANCE EXTENSION  
Methods and apparatus for increasing the operational distance of multimode fibers are disclosed. According to one aspect of the present invention, an optical transmitter includes a framer that...
US20130084075 SUPER-CHANNEL ASSIGNMENT USING A FLEXIBLE GRID  
A node is configured to receive an instruction to establish a channel having a bandwidth that corresponds to an operating spectrum an optical fiber; obtain information that identifies a channel...
US20090208223 FOUR WAVE MIXING SUPPRESSION  
Methods, systems and computer program products for countering the effects of four wave mixing are described. In one implementation, a controller can be used to shift an operating wavelength of an...
US20100150571 OPTICAL MODULE WITH EASILY PRODUCED FERRULE ASSEMBLY AND METHOD FOR PRODUCING THE SAME  
An optical module with a ferrule assembly able to be easily produced is disclosed. The ferrule with a tubular shape provides first to third bores. The first bore receives the optical fiber with a...
US20110069969 WAVEGUIDES AND DEVICES FOR ENHANCED THIRD ORDER NONLINEARITIES IN POLYMER-SILICON SYSTEMS  
Systems and methods for manipulating light with high index contrast waveguides clad with substances having that exhibit large nonlinear electro-optic constants such as χ3. Waveguides fabricated on...
US20100028019 DISPLAY SYSTEM, CONTROL MODULE AND DISPLAY APPARATUS  
The present invention provides a display system. The display system includes a control module, a display apparatus and an optical fiber module. The control module is used to process images and...
US20090208224 OPTICAL FIELD RECEIVER, OPTICAL MULTILEVEL SIGNAL RECEIVER, AND OPTICAL TRANSMISSION SYSTEM  
An optical field receiver comprises an optical branching circuit for branching a received optical multilevel signal into first and second optical signals, a first optical delayed demodulator for...
US20090175627 DATA TRANSMISSION SYSTEM USING OPTICAL FIBER  
A data transmission system using an optical fiber includes an optical fiber, a first light-emitting device, a second light-emitting device, a first photo-detecting device and a second...
US20080159747 Integral Phase Rule for Reducing Dispersion Errors in an Adiabatically Chirped Amplitude Modulated Signal  
An optical transmitter is disclosed for transmitting a signal along a dispersive medium to a receiver. The optical transmitter generates adiabatically chirped profile having an initial pulse width...
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...

Matches 1 - 50 out of 197 1 2 3 4 >