Abstract: The present invention includes a light communication method and system wherein messages are transmitted via color code flashes. The light communication includes mechanisms for oversampling the color code flashes to enhance the accuracy of the method and system.

Abstract: The present invention provides optical power adjustment method for EPON system, and OLT. The method comprises: OLT starting optical power adjustment procedure after ONU or ONT successfully registers, receiving upstream data from the ONU or the ONT (201); during optical power adjustment procedure, OLT detecting whether there is error code in upstream data; if not, notifying the ONU or the ONT to decrease transmission optical power progressively, during progressive decrease procedure, OLT continuing to detect whether there is error code in upstream data (203); if there is error code during progressive decrease procedure, notifying the ONU or the ONT to increase transmission optical power progressively, and during progressive increase procedure, OLT continuing to detect whether there is error code in upstream data (205); if there is no error code during progressive increase procedure, OLT stopping the adjustment (207).

Abstract: Into a current-voltage conversion unit, a single-end current signal which is a photoelectrically converted optical signal is input. The current-voltage conversion unit converts the single-end current signal into a single-end voltage signal and outputs the converted signal from an output terminal. An input terminal of an amplifier unit is connected to the output terminal of the current-voltage conversion unit. The amplifier unit amplifies the single-end voltage signal to predetermined amplitude set in advance and outputs the amplified signal from an output terminal. Then, an input terminal of a differential conversion unit is connected to the output terminal of the amplifier unit. The differential conversion unit outputs a differential voltage signal which is a differentiated single-end voltage signal amplified in the amplifier unit. The present technique can be applied, for example, to an optical transmission system.

Abstract: A tunable Radio Frequency (RF) filter device includes a tunable optical source configured to generate an optical carrier signal, and a modulator coupled to the tunable optical source and configured to modulate the optical carrier signal with an RF input signal. The tunable RF filter device may also include first and second optical waveguides coupled to the modulator and having first and second dispersion slopes of opposite sign, and an optical-to-electrical converter coupled to the first and second optical waveguides and configured to generate an RF output signal with a frequency notch therein based upon the tunable optical source.

Abstract: Disclosed are a forward discrete/inverse-discrete Fourier transform device and method for optical orthogonal frequency division multiplexing (OFDM) communication and a transmitting and receiving apparatus. The forward inverse-discrete Fourier transform device includes N 1:N splitters for splitting subcarrier signals received from N inputs corresponding to the number of optical frequencies of subcarriers, a phase shift delay array module for shifting phases of the split signals from the 1:N splitters, N N:1 power couplers for coupling signals output from the phase shift delay array module, a time delay array module for performing time delay on optical OFDM symbols from the N:1 power couplers, and an N:1 power coupler for coupling signals output from the time delay array module.

Abstract: In an optical communication system, an optical transmitter changes operational physical layer parameters to meet future target throughput for the optical communication system. The optical transmitter communicates the upcoming change to the optical receiver in a message that used current physical layer parameters. The optical transmitter provides sufficient time to the optical receiver to adjust reception functions of the receiver, including polarization based demodulation scheme. In some implementations, the optical transmitter performs the transition to a new physical layer transmission format without waiting for an acknowledgement from the optical receiver.

Abstract: System and method embodiments are provided herein to obtain minimum or optimal spare capacity allocation (SCA) using partial disjoint paths (PDP) for bi-connected network topology. Both an integer linear programming (ILP) optimization model and an approximation algorithm, referred to herein as Successive Survivable Routing (SSR), are formulated for resolving the SCA with PDP. The embodiments include assigning a working path and a primary backup path on two disjoint routes between two end nodes, and assigning a plurality of secondary backup paths that are partially disjoint and that each pass through one fiber cut group on one of the two disjoint routes and all remaining fiber cut groups on the other one of the two disjoint routes. Each of the fiber cut groups includes all fiber cut pairs on both disjoint routes that have the same effect of interrupting a flow on both disjoint routes.

Abstract: The invention is directed to apparatus, systems and methods enabling a service provider to establish an optical demarcation point located at or within equipment controlled at least in part by a customer's domain such that the service provider's domain is able to directly control access of an optical signal to their domain.

Abstract: An optical communication system has a receiver that includes a plurality of photon counting sensors that each receive photons and generate pulses based on the received photons, and an electronic circuit that aggregates the number of pulses from the plurality of photon counting sensors into a merged pulse count. A demodulator samples the merged pulse count at predetermined time intervals to determine a number of photons received by the plurality of photon counting sensors during different sampling time intervals.

Abstract: Methods, algorithms, architectures, circuits, and/or systems for determining the status of parameters associated with optical transceiver operation are disclosed. The method can include (a) accessing and/or monitoring parametric data for each of a plurality of parameters that are related to operation of the optical transceiver; (b) storing the parametric data in one or more memories; (c) comparing the parametric data for each of the plurality of parameters against at least one of a corresponding plurality of predetermined thresholds; and (d) generating one or more states indicating whether the parametric data for a unique one of the parameters has crossed one or more of the corresponding plurality of predetermined thresholds. The invention also relates to an optical triplexer, comprising the described optical transceiver.

Abstract: 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 in accordance with a multi-level coding scheme. The receiver is configured to provide receive and decode to the optical signals received from the transmitter. One or both of the receiver and transmitter are configured to compensate for non-idealities or non-linearities introduced into the communication system by optical components of the system.

Abstract: A method and system for transferring data comprising: an entangled photon source for producing first and second entangled photons associated with a receiver and a sender, respectively; a Bell state measurement device for performing a joint Bell state measurement on the second entangled photon and the at least one qubit; the Bell state measurement device outputting two bits of data to be used at the receiver; a transmission channel for transmitting two bits from the outcome of the Bell state measurement device to the receiver; a unitary transformation device for performing a unitary transformation operation on the first entangled photon based upon the value of the two bits of data; at least one detector for detecting encoded information from the first entangled photon; at least one processor operating to determine whether or not to transmit portions of data from a sequential successive qubit based upon the preceding qubit.

Abstract: An apparatus comprises an optical transmitter; an optical detector configured to receive optical signals from an optical fiber; an optical splitter having a first port, a second port coupled to the optical detector by the optical fiber, and a third port coupled to the optical transmitter; and a two stage amplifier system connected to an output of the optical detector. An input surface of the optical detector may have a diameter that is substantially equal to a diameter of a core in the optical fiber. The diameter of the input surface of the optical detector reduces capacitance and reduces signal distortion. The optical splitter may be configured to receive a first optical signal at the first port. The optical splitter may be configured to send the first optical signal to the second port and send a second optical signal received at the third port to the first port.

Abstract: A multilevel amplitude modulation device for generating, from digital data, a multilevel amplitude modulation signal having four or more signal levels and outputting the generated signal, including: an average level calculator that selects one of a plurality of preliminarily prepared different candidates for a code word building method such that average level of a symbol array, obtained by adding a symbol for a code word of digital data to be transmitted to one or more already outputted symbols included in a multilevel amplitude modulation signal already outputted, is most approximate to voltage center of the four or more signal levels, and outputs a selection signal indicating the selected method; a signal converter that forms a codeword of the digital data in accordance with the method indicated by the selection signal; and a multilevel modulator that generates a multilevel amplitude modulation signal using the codeword and outputs the generated signal.

Abstract: An optical modulator includes optical waveguides on which phase modulation regions are formed. A drive circuit includes a lower-bit drive unit, an upper-bit drive unit, and a bit splitting unit. The bit splitting unit splits an input digital signal into upper bits and lower bits. The lower-bit drive unit outputs a value obtained by performing D/A conversion on the lower bits to phase modulation regions. The upper-bit drive unit outputs, to phase modulation regions, a value greater than a maximum value of values output from the lower-bit drive unit, or a minimum value of the values output from the lower-bit drive unit, according to a value of the upper bits.

Abstract: The invention relates to a method for transmitting a binary digital transmit signal over an optical transmission link. The method includes the steps of creating a differential optical duobinary signal (SdODB(t)), supplying the differential optical duobinary signal SdODB(t)) to a first end of the optical transmission link, transmitting the differential optical duobinary signal SdODB(t)) to a second end of the optical transmission link, and receiving the differential optical duobinary signal SdODB(t)) as receive signal (SRX(t)) at the second end of the optical transmission link by detecting the optical power of the differential optical duobinary signal SdODB(t)) and creating a binary digital receive signal (SbRX(t)) corresponding to the binary digital transmit signal (SbTX(t)) by decoding the receive signal (SRX(t)).

Abstract: A method for bidirectional optical communication comprising the steps of:—at a first optical line terminal, directly modulating a laser source to generate a downstream optical signal which has an optical power spectrum comprising two peaks having a frequency separation and a non zero power difference at generation;—propagating said downstream optical signal at a distance along an optical line comprising at least a first optical fiber propagating said downstream optical signal to a second optical line terminal;—at the second optical line terminal: power splitting said downstream optical signal to generate a first and a second power portion of said downstream optical signal, spatially separated; passive filtering said first power portion of said downstream optical signal so as to increase in absolute value a respective power difference of said two peaks, so as to obtain a filtered optical signal which is thereafter detected; and amplitude modulating the second power portion of the downstream optical signal so a

Abstract: A tunable Radio Frequency (RF) filter device includes a tunable optical source generating an optical carrier signal, and a modulator coupled to the tunable optical source and modulating the optical carrier signal with an RF input signal. The tunable RF filter device may include first and second optical waveguide paths coupled to the modulator and having first and second dispersion slopes of opposite sign from each other, one or more of the first and second optical waveguide paths comprising an optical splitter and combiner pair therein, and an optical-to-electrical converter coupled to the first and second optical waveguide paths and generating an RF output signal with a frequency notch therein based upon the tunable optical source.

Abstract: A system for communicating data comprising sender and receiver subsystems; at least one data input; at least one entangled photon source; first photons of the pairs of entangled photons outputted by the at least one photon source being processed by one of the sender or receiver subsystem; second photons of the pairs of entangled photons being processed by the other of the sender or receiver subsystem; a photonic element configured to receive the first photons of the pairs of entangled photons and enable interference therebetween; at least one absorber configured to absorb the first photons after passage through the beam splitter, the absorbance of the first photons operating to transfer the properties of the entanglement to the second photons of the pairs of entangled photons; and a Bell state measurement element operatively associated with the receiver subsystem configured to measure the second photons of the pairs of entangled photons.

Abstract: A method, a network, and a node each implement the transmission of Automatic Protection Switching (APS) switching coordination bytes across an OTN network. A working signal and a protection signal are received, one of which is designated as an active signal. The active signal is encapsulated in an Optical channel Data Unit (ODU) signal. APS switching coordination bytes from the working and protection signals are placed in an overhead segment of the ODU signal. The ODU signal is transmitted into and received from an Optical Transport Network (OTN) network. The working and protection signals are recreated based on the active signal encapsulated in the ODU signal and the APS switching coordination bytes in the overhead segment. The recreated working and protection signals are transmitted. In this manner, a single ODU signal may be used to transmit both the working and protection signals.

Abstract: In some examples, a transmit assembly is described that may include a first optical transmitter, a second optical transmitter, and a polarizing beam combiner. The first optical transmitter may be configured to emit a first optical data signal centered at a first frequency. The second optical transmitter may be configured to emit a second optical data signal centered at a second frequency offset from the first frequency by a nominal offset n. The polarizing beam combiner may be configured to generate a dual carrier optical data signal by polarization interleaving the first optical data signal with the second optical data signal. An output of the polarizing beam combiner may be configured to be communicatively coupled via an optical transmission medium to a polarization-insensitive receive assembly.

Abstract: The invention relates to a system for producing a signal having a variably adjustable time position or phase position, comprising at least one light source for producing a first light component (2) having a first wavelength and a second light component (2?) having a second wavelength deviating from the first wavelength and a phase modulator (5) for varying a phase of the first light component (2), wherein the system is designed to produce a beat note signal by superposing the two light components (2, 2?) and has a common optical fiber (4) for coupling in both light components (2, 2?), wherein furthermore the phase modulator (5) is arranged at an end or in the course of said optical fiber (4) and is transparent to both light components (2, 2?) and is designed to vary the phase of the first light component (2) selectively independently of a phase of the second light component (2?) or more intensely than the phase of the second light component (2?). The invention further relates to a use of such a system.

Abstract: An information system comprises a card and a card reader. The card and the card reader can be coupled by an optical communication module and an optical power transfer module. Operations of the card can be powered by the power transferred from the card reader through the optical power transfer module.

Abstract: The present disclosure generally pertains to optical communication apparatuses having field-tunable power characteristics. In one exemplary embodiment, an optical communication apparatus has an optical transmitter. The optical transmitter is coupled to logic that receives a user input indicative of a desired transmit mode for the transmitter, and the logic then dynamically tunes the transmitter's output power according to the selected transmit mode. In addition, the optical communication apparatus may have an optical receiver for receiving optical signals. The sensitivity of the receiver is controlled by a bias voltage that is applied to the receiver by the logic. The logic is configured to receive a user input indicative of a desired receive mode and then to tune the receiver's sensitivity via the bias voltage according to the selected receive mode.

Abstract: A user equipment (UE) device includes a VLC receiver including a photodiode and a radio receiver. The UE device supports a plurality of alternative technologies, communications protocols, and/or frequencies. During a first mode of operation, e.g., a discovery mode, a low reverse bias voltage value is applied to the photodiode. The low reverse bias voltage is adequate to support the recovery of small amounts of communicated information, and the power consumed by the battery of the UE device is relatively low. During discovery, information communicated includes, e.g., a light transmitter ID, an access point ID, services available at the access point, configuration information for a light receiver and/or for an auxiliary radio receiver. During a second mode of operation, e.g., a data traffic mode, the reverse bias voltage applied to the photodiode is set to a high reverse bias voltage to support higher data rate using VLC.

Abstract: An optical receiving device includes multiple input ports to which light is input; multiple amplifiers that are arrayed and provided corresponding to the input ports, respectively, each of the amplifiers amplifying and outputting light input from a corresponding input port among of the input ports; a photo diode that converts light into an electrical signal; and a lens that inputs to the photo diode light output from the amplifiers.

Abstract: A system and method for facilitating smart power meter monitoring are provided. The system for facilitating smart power meter monitoring includes a standards-based frame detector, a CDR, at least one 8b/10 encoder/decoder and data links to receive input signals and transmit output signals. The system provides for the conversion of incoming SerDes signals, like those that may be transmitted from an optical module, into UART signals that can be communicated to the smart power meter directly through a UART port of the meter. The method includes receiving SerDes signals from an optical module and converting the signals to UART signals. The UART signals are converted to comply with industry standard protocols for communication with the smart power meter. The UART signals are then transmitted to the smart power meter through the meter's UART port.

Abstract: An optical subscriber network for power reduction is provided. The optical subscriber network may include an Optical Line Terminal (OLT) and an Optical Network Terminal (ONT). The OLT may manage a plurality of ONTs by classifying the plurality of ONTs into a sleep group, and may multicast a sleep allowance message only to ONTs included in a predetermined sleep group.

Abstract: One embodiment is a Poisson-based communication system. The system includes a receiver that comprises a photodetector that receives photons and generates pulses based on the received photons, a sampling event counter that counts the number of generated pulses by the photodetector and a demodulator. The demodulator samples the sampling event counter at predetermined time intervals to determine an occurrence of a first state when light pulse energy has been transmitted by a transmitter and received by the photodetector and an occurrence of a second state when light pulse energy has not been transmitted by the transmitter and received by the photodetector.

Abstract: A vehicle powering wireless receiver for use with a first electromagnetic resonator coupled to a power supply. The wireless receiver includes a load configured to power the drive system of a vehicle using electrical power, and a second electromagnetic resonator adapted to be housed upon the vehicle and configured to be coupled to the load, at least one other electromagnetic resonator configured with the first electromagnetic resonator and the second electromagnetic resonator in an array of electromagnetic resonators to distribute power over an area, wherein the second electromagnetic resonator is configured to be wirelessly coupled to the array to provide resonant, non-radiative wireless power to the second electromagnetic resonator from the first electromagnetic resonator.

Abstract: Embodiments of the concepts, systems, and techniques disclosed herein are directed to an optically powered, direct-sampling, analog-to-digital converter (ADC) that provides fully formatted, serialized data for transmission over optical fiber from a remote location. Such a system and method of use thereof requires less electrical power, fewer components, and less complexity than previous systems and methods and achieves an all-optical-fiber implementation that provides complete electrical and electromagnetic interference (EMI) isolation for the remote ADC. These concepts, systems, and techniques simplify the overall remote sensing architecture by locating the ADC near the sensor and transferring pure digitized signals back to the processor.

Abstract: An optical system and method disclosed include a first lens component and a second lens component within the receive path or the transmit path. The first lens component includes at least two aspheric surfaces that oppose one another and generate a collimated beam channel. The second lens component generates a converging beam and magnifies the converging beam with a magnification factor that is different from a magnification factor in the other path, either the receive path or the transmit path. The receive path and the transmit path include symmetrical lengths and asymmetrical magnification factors.

Abstract: An optical-power-distribution (OPD) subsystem that provides means for supplying optical local-oscillator signals and optical-carrier signals to various optical line cards, without the need for each optical line card to have a corresponding individual laser source. In one embodiment, a single laser coupled to the OPD subsystem provides optical local-oscillator signals and optical-carrier signals to multiple optical line cards. In another embodiment, multiple lasers coupled to the OPD subsystem provide multiple optical local-oscillator signals and optical-carrier signals to a single line card. An OPD subsystem may provide significant power savings in the operation of the corresponding optical transport system, a reduction in the required equipment-cooling capacity, and an increase in the device-packing density within optical line cards and inside equipment cabinets that house optical line cards.

Abstract: 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 on a wavelength division multiplexing (WDM), for each wavelength set of the plurality of wavelength sets, associating each wavelength set with a different domain of the plurality of domains and with a different indicator identifying the domain for the wavelength set, and isolating each tenant using the associated wavelength sets and associated indicators. The plurality of tenants share computational resources in the multi-tenant cloud system and the domain includes the computational resources for each tenant. The WDM uses a plurality of wavelength sets and each wavelength set includes one or more wavelengths.

Abstract: A transmission apparatus includes: a data signal processor to add first data of a control signal to a data signal received, and transmit the data signal; a first signal output module to output second data of the control signal; an update controller to control an update of a function included in the first signal output module; and a second signal output module, when receiving a notice of an instruction for updating the function from the update controller, to output the first data that is the second data held therein when the notice thereof is received, wherein the second signal output module, when receiving a notice of a completion for updating the function from the update controller, outputs the first data that is the second data received from the first signal output module updated by the update controller.

Abstract: An optical assembly comprising a semiconductor chip having a handle layer and a device layer on the handle layer. The device layer comprises a focusing element, a MEM device, and one or more support islands coupled to a different portion of the handle layer. One portion of the MEM device is coupled to the focusing element and another portion of the MEM device is coupled to one portion of the handle layer, and the MEM device is configured to change a physical position or orientation of the focusing element in response to an electrical actuation.

Abstract: A tunable Radio Frequency (RF) filter device includes a tunable optical source configured to generate an optical carrier signal, and a modulator coupled to the tunable optical source and configured to modulate the optical carrier signal with an RF input signal. The tunable RF filter device may also include first and second optical waveguides coupled to the modulator and having first and second dispersion slopes of opposite sign, and an optical-to-electrical converter coupled to the first and second optical waveguides and configured to generate an RF output signal with a frequency notch therein based upon the tunable optical source.

Abstract: An apparatus comprising a wavelength division multiplexer (WDM), an optical network unit (ONU) coupled to the WDM, a passive optical network (PON) data over cable service interface specification (DOCSIS) upstream proxy (PDUP) coupled to the ONU and configured to couple to a coaxial cable, and a downstream (DS) optical/electrical (O/E) converter coupled to the WDM and configured to couple to the coaxial cable. An apparatus comprising a WDM, an optical line terminal (OLT) coupled to the WDM, a cable model termination system (CMTS) coupled to the OLT via an upstream external physical (PHY) interface (UEPI), and a DOCSIS and a Quadrature Amplitude Modulation (QAM) unit coupled to the WDM and the CMTS.

Abstract: A sending/receiving system includes first and second sending/receiving apparatuses. The first sending/receiving apparatus includes a first sending section that sends link establishment information via first transmission channels. The second sending/receiving apparatus includes a second sending section, link establishing sections, and a controller. The second sending section sends link establishment information to the first sending/receiving apparatus via a second transmission channel. Each of the link establishing sections is provided for a corresponding one of the first transmission channels and establishes a link in the corresponding first transmission channel on the basis of the link establishment information.

Abstract: In one embodiment, the optical transport system has an optical transmitter, an optical receiver, and one or more phase-sensitive amplifiers (PSAs) disposed within an optical link that connects the optical transmitter and receiver. The optical transmitter employs a first nonlinear optical process to generate a two-carrier signal in a manner that makes this signal suitable for phase-sensitive amplification. The PSAs employ a second nonlinear optical process to optically amplify the two-carrier signal in a phase-sensitive manner to counteract the attenuation imposed onto the two-carrier signal by lossy components of the optical link. The optical receiver employs a third nonlinear optical process in a manner that enables the receiver to beneficially use redundancies in the two-carrier signal, e.g., for an SNR gain.

Abstract: The present disclosure describes an optically powered transducer with a photovoltaic collector. An optical fiber power delivery method and system and a free space power delivery method are also provided. A fabrication process for making an optically powered transducer is further described, together with an implantable transducer system based on optical power delivery.

Abstract: A data transmission method is disclosed in the present invention, where the method includes: mapping a data stream to be transmitted to an orthogonal frequency division multiplexing access, OFDMA, sub-carrier; scheduling the OFDMA sub-carrier; multiplexing the OFDMA sub-carrier to generate an OFDMA frame; and transmitting the OFDMA frame. A data transmission apparatus and a data receiving apparatus are also disclosed in the present invention. Through the present invention, a cross connection capability on the basis of the OFDMA sub-carrier is implemented, and in this way, not only all convergence services from a slave node to a master node are supported, but also a private line connection between two slave nodes is supported.

Abstract: An optical transmitter determines the transfer function in the reference-based pre-equalization for applying to an optically modulated signal at the transmitter. The determined pre-equalization transfer function is made robust to linewidth inaccuracy of the optical source by performing phase correction during the calculation of the pre-equalization transfer function. The phase correction includes averaging a number of consecutive received phase samples. The determined pre-equalization transfer function is applied to modulated signals prior to the transmission over an optical medium.

Abstract: A detection system for remote monitoring of a contact condition comprises first, second, and third impedance means, and four comparators. Each impedance means is selectively coupled between the contact and the comparators. With a known voltage applied at the third impedance means, the three impedances produce a unique signal voltage at the comparators depending on a condition of the contact closure. Each comparator may detect one of the four unique voltages and produce an electrical signal corresponding to the detected condition, which may be converted into an optical signal, and be transmitted in a fiber optic cable to a receiver where it is converted back into an electrical signal. Four detectors are each adapted to detect one of the electrical signals, and trigger a relay and status LEDs, indicating a contact condition consisting of: normally open/closed, and short/open circuited. A fifth detector monitors for broken fiber optic cable.

Abstract: A filter-based method of demodulating differentially encoded phase shift keyed (DPSK) optical signals, such as commonly used binary-DPSK (DBDPSK) and quadrature DPSK (DQPSK) signals, that can achieve optimal receiver sensitivity is described. This approach, which combines filtering and differential phase comparison, can reduce the complexity and cost of DPSK receivers by obviating delay-line interferometer-based demodulation. This can improve receiver stability and reduce size, weight, and power, while maintaining the ability to achieve optimal communications performance.

Abstract: An optical communication system includes an optical transmitter, and an optical receiver connected via a transmission line to the optical transmitter, in which system the optical transmitter transmits a continuous-wave light signal that enables beat detection when combined with a local oscillator signal in the optical receiver, and the optical receiver acquires a beat waveform through digital sampling by detecting the light signal using the local oscillator signal, performs frequency analysis on digitally sampled data having the beat waveform prior to demodulation, and controls the local oscillator frequency based upon the beat frequency.

Abstract: A laser light source module includes a plurality of laser light sources, a synthesizing element, a light receiving element, a case unit and a sealing unit. The synthesizing element overlaps laser beams outputted from the laser light sources. The light receiving element detects the intensities of the laser beams outputted from the laser light sources. The case unit houses the laser light sources and the synthesizing element. The sealing unit seals the case unit. The light receiving element is attached to the sealing unit.

Abstract: The present wavelength multiplexed optical system includes a multimode optical fiber that transmits wavelength multiplexed optical signals and a plurality of multimode modal dispersion compensation optical fibers. Each modal dispersion compensation optical fiber can transmit one of the multiplex wavelengths, and each modal dispersion compensation optical fiber has an optimized index profile such that the modal dispersion for the transmitted wavelength is approximately inversely equal to the modal dispersion induced in the multimode optical fiber. The wavelength multiplexed optical system facilitates an increased bitrate without reducing bandwidth.

Abstract: An optical interconnection module (100) for connecting to a media converter module (20) as part of a hybrid electrical-optical network (10) is disclosed. The optical interconnection module includes a transmitter connector (136T) having transmit ports (POT(i)) and a receiver connector having receive ports (POR(i)). The optical interconnection module also has transmit/receive ports (POF(i)) that are optically connected via a set (F) of fibers (142) to the transmit and receive ports of the transmitter and receiver connectors using one of two port configurations. Hybrid electrical-optical networks that utilize a trunk cable (60) to connect the media converter module to the optical interconnection module are also disclosed.

Abstract: An optical connection infrastructure has optical conduits between first devices and at least one second device. Dynamic reconfiguration of the optical connection infrastructure can be performed from a first connection topology to a second, different connection topology based on programming of the first devices.