Abstract: A communication device is disclosed having optical and near-field communication capability. The device includes an optical transceiver circuit fabricated on an integrated circuit die and configured to transmit and receive far field signals. A near field transceiver circuit is also fabricated on the integrated circuit die and is configured to transmit and receive near-field electro-magnetic signals. Control circuitry is provided to selectively enable the optical transceiver circuit and the near field transceiver circuit responsive to an external control signal.

Abstract: A headset includes a substantially U-shaped frame, two speakers mounted at two ends of the substantially U-shaped frame, an infrared emitter, and an infrared receiver facing the infrared emitter. The infrared emitter is configured for emitting infrared light towards the infrared receiver. The infrared receiver is configured for receiving the infrared light from the infrared emitter and for generating a pause signal after the infrared light is continuously received by the infrared emitter for a first predetermined time. The headset is configured to stop working according to the pause signal.

Abstract: A pluggable optical transceiver with a function not affecting the command status of the host system appeared in the internal bus, which is coupled with the command line within the transceiver, even when the transceiver is plugged in the host system. The optical transceiver provides a power supply circuit and a control unit. The power supply circuit, by receiving an external electric power, generates an internal electric power with a substantial time lag from a moment when the optical transceiver is plugged in the host system. The control unit communicates with the host system through the command line pulled up to the external electric power within the optical transceiver.

Abstract: An optical USB device includes an electro-optical converter configured to receive optical signals from an optical fiber and to convert them into first electrical signals and configured to receive second electrical signals and to convert them into optical signals for transmission to the optical fiber. A USB 3.0 pin-compatible connector is coupled to the electro-optical converter. The pin-compatible connector is configured for coupling to a USB 3.0 connector of another USB device. The pin-compatible connector includes a first pair of pins configured for transmitting the first electrical signals from the optical USB device. The pin-compatible connector also includes a second pair of pins configured for receiving the second electrical signals into the optical USB device. The pin-compatible connector also includes a third pair of pins configured for transceiving third electrical signals according to a non-USB serial bus interface protocol to control and configure the electro-optical converter.

Abstract: A fiber optic link for platforms with data sources including, e.g., sensors, cameras, radars and antennas. An array of optical transmitter/receiver pairs is coupled to an integrating network of the platform. Data modules are each coupled to certain ones of the data sources and include a receiver for detecting control data, and a modulator for modulating a light signal according to signals from the module's data sources. At least one optical fiber is coupled between a given transmitter/receiver pair of the array, and a corresponding data module. A laser source associated with each transmitter supplies a light signal with the control data to a corresponding data module downstream over an optical fiber. The light signal is modulated by the signals from the module's data sources, and the modulated light signal is returned to an array receiver upstream over an optical fiber.

Abstract: A fiber optic GPS signal device and method comprising a VCSEL multimode transmitter having a gain that, together with the GPS antenna gain, is greater than the VCSEL multimode transmitter noise. When in operative communication, via a long length of multimode fiber, i.e., up to 2000 feet and greater, with a fiber optic receiver, the GPS signals are transmitted at, inter alia, L1 and L2 frequencies with minimal degradation over the length of multimode fiber. The present invention may be used in a variety of GPS transmission applications requiring long lengths of cabling. For example, the invention is particularly useful when the GPS antenna is located on top of an office building or cell phone tower and remotely from the GPS receiver and for use in high-volume commercial telephone synchronizing (DTMF) applications.

Abstract: A system includes a transmitter is configured to transmit an electromagnetic signal to a receiver, which is configured to receive the electromagnetic signal and another electromagnetic signal for mixing therewith. Propagation paths of the signals to the transmitter and receiver include a first propagation path of the electromagnetic signal to the transmitter, and a second propagation path of the other electromagnetic signal to the receiver. The arrangement, which is located along either or each of the propagation paths of signals to the transmitter and receiver, is configured to alter the length of a respective propagation path. And the processor configured to recover an amplitude and phase of the transmitted electromagnetic signal, including being configured to receive a sequence of samples of the received electromagnetic signal, and Discrete Fourier Transformation process the sequence of samples.

Abstract: Techniques, apparatus and systems to provide carrier signal transmission in reciprocal transmission architecture networks for optical communications.

Abstract: An intelligent transmitter module (“ITM”) includes a CDR circuit for equalizing and retiming an electrical data signal, a driver for generating a modulation signal and/or performing waveform shaping of the equalized and retimed signal, and an optical transmitter configured to emit an optical signal representative of the data signal. A linear amplifier may also be included to amplify the modulation signal when the optical transmitter is a laser with managed chirp. Alternately or additionally, a microcontroller with a 14-bit or higher A2D can be included to control and optimize operation of the ITM. In one embodiment, the CDR, driver, linear amplifier, and/or microcontroller are flip chip bonded to a first substrate while the laser with managed chirp is bonded to a second substrate. The first substrate may comprise a multi-layer high frequency laminate.

Abstract: 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 filter and a photodiode (PD) on an axis of the single mode fiber coupled with the module, while, a laser diode (LD) in a position perpendicular to the optical axis. The WDM filter provides a multi-layered optical film on a primary surface and an edge in a side far from the LD and the (PD) makes an obtuse angle to the primary surface so as to prevent light from the LD and reflected at this edge from entering the PD.

Abstract: An integrated circuit product, for bidirectional communication, has two inputs and two outputs. The first input is located on a first edge of the integrated circuit product. The first output is located on a second edge of the integrated circuit product, the second edge being located adjacent to the first edge. The second input is located on a third edge of the integrated circuit product, the third edge being opposite the first edge. The second output is located on a fourth edge of the integrated circuit product, the fourth edge being opposite the second edge. The integrated circuit product can be mounted diagonally in a transceiver module, allowing straight signals paths from the inputs and outputs of the integrated circuit product to the corresponding inputs and outputs of the transceiver module.

Abstract: Optical triplexers are disclosed. The optical triplexers include an optical fiber, a first ball lens optically coupling a first optical signal between a first opto-electronic device and a first wavelength selective filter, and a second ball lens optically coupling a second optical signal between a second opto-electronic device and the first wavelength selective filter. The optical triplexers further include a second wavelength selective filter optically coupling the first and second optical signals between the first wavelength selective filter and a third ball lens and a fourth ball lens optically coupling a third optical signal between a third optical signal between a third opto-electronic device and the second frequency selective filter. The second wavelength selective filter optical couples the third optical signal between the fourth ball lens and the third ball lens. Thus, each of the optical signals are selectively coupled between one of the opto-electronic devices and the optical fiber.

Abstract: A transceiver module having integrated eye diagram opening functionality for reducing jitter is described. The transceiver module may include a transmitter eye opener and a receiver eye opener integrated in a single circuit. The transceiver module may also include serial control and various other integrated components. Other functionalities that may be integrated on the transceiver module include loopback modes, bypass features, bit error rate testing, and power down modes.

Abstract: To provide an optical transceiver module comprising an optical prism for optical communications which has mounting portions, a light emitting portion, light receiving portions, a substrate and a sub-mount that are used as the basis of the optical transceiver module, whose configuration is compact with reduced components which are accurately mounted. A sub-mount is provided on the substrate. The composite optical prism is formed with an optical lens provided with mounting supports and a wavelength division film in an integrated fashion. By using marks on the sub-mount for alignment, the composite optical prism can be mounted accurately on the sub-mount. In addition, the light receiving portions and the light emitting portion can be mounted accurately by using marks for alignment provided on the substrate and the sub-mount.

Abstract: An optical network test access point (“TAP”) device. In one example embodiment, an optical network TAP device includes a printed circuit board and a plurality of optical receiver modules. The printed circuit board includes a microprocessor, a multiplexer connected to the microprocessor, and a plurality of post amplifiers connected to the multiplexer. Each optical receiver module includes one or more ROSAs. Each ROSA is connected to the multiplexer through one of the plurality of post amplifiers.

Abstract: The embodiments disclosed herein relate an insertable shield clip for use in controlling electromagnetic interference in an optical transceiver module. The optical transceiver module may include a shell that houses first and second optical subassemblies and an enclosure that cooperates with the shell in defining a covering for the optical transceiver module. The shield clip may comprise a body composed of conductive material. The body may include first and second vertical side members. The body may also include first and second shield members that are each configured to receive a corresponding nosepiece of one of the first and second optical subassemblies. The body may further include a bottom member that interconnects the first and second vertical side members and the first and second shield members.

Abstract: Systems and methods for controlling a thermoelectric cooler (TEC) in an optical transceiver. A TEC system includes a processor that interacts with a power supply and a TEC controller to prevent inrush current. The power supply is switched by the processor and turned on only at a particular time. The power supply has a relatively large time constant such that it ramps slowly to its full value. In the meantime, the processor and TEC controller cause the temperature to ramp to a target value by repeatedly incrementing or decrementing a target value over time and by controlling when the maximum available voltage can be applied to the TEC.

Abstract: The present invention enables device downsizing by utilizing a light-emitting diode as a plurality of interfaces. A light-emitting diode 11 of a data communication unit using a light-emitting diode for data communication outputs light when a current flows therethrough. A transmission circuit 13 applies a forward bias to the light-emitting diode 11 based on transmission data. A separation circuit 14 outputs a voltage that changes according to a voltage which is generated in the light-emitting diode 11 when the transmission circuit 13 does not apply the forward bias to the light-emitting diode 11.

Abstract: An environment that facilitates the purchasing and updating of specific operational features in an optical transceiver (or optical transmitter or optical receiver). The environment includes a host computing system (hereinafter referred to as the “host”), a network, a remote computing site, and an optical transceiver having a system memory and at least one processor. The host determines that microcode that governs the behavior of an optical transceiver is desired to be purchased. A request to purchase the microcode is sent over the network from the host to the remote computing site. The remote computing site responds to this request by providing the host information by which the purchased microcode may be accessed. The host may then access the microcode. Finally, the host provides the microcode to the optical transceiver memory where it may later be executed by the processor.

Abstract: Provided is a bi-directional optical module including: a transmission optical element including an SOA (semiconductor optical amplifier) aligned on an optical axis of an LD (laser diode) formed on a substrate; and a reception optical element comprising a PD (photodiode) including a light receiving surface perpendicular to the optical axis of the LD of the transmission optical element.

Abstract: An integrated optical transceiver includes an optical subassembly that produces a first electrical signal in response to a first optical signal comprising reception signal data and to emit a second optical signal comprising transmission signal data in response to a second electrical signal. A data processing unit can extract the reception signal data from the first electrical signal and produce the second electrical signal in response to a third electrical signal comprising the transmission signal data. The data processing unit can perform system-layer functions. A data path interface can send the reception data to a host device and receive the third electrical signal comprising the transmission data from the host device. A management unit can control the data processing unit to perform the system-layer functions. A control path interface communicates with the management unit and the host device.

Abstract: 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 electrical connecting terminals to establish electrical coupling with the receptacle and optical coupling with the light-emitting element and/or the light-receiving element, an electric signal transmission line, and an optical signal transmission line. The receptacle has a fitting recess, and when the plug is fitted in the fitting recess in a direction substantially perpendicular to the optical axis of the light-emitting element or the light-receiving element, the optical coupling, the electrical coupling, and engagement of the receptacle with the plug are established at a location where the fitting recess and the plug are adjacent to each other.

Abstract: This disclosure concerns optoelectronic transceivers. In one example, a transceiver is implemented as an uncompensated architecture that is substantially compliant with the SFP MSA and is capable of effective operation at a data rate of about 8.5 Gb/s. The transceiver includes a TOSA, ROSA, a printed circuit board, an LDPA disposed on the printed circuit board and configured for communication with the TOSA and the ROSA. Finally, the transceiver includes SFP compliant optical and electrical connections.

Abstract: Embodiments of a system are described. This system includes an array of chip modules (CMs) and a baseplate, where the baseplate is configured to communicate data signals via optical communication. Moreover, the array includes first CMs mechanically coupled to first alignment features on the baseplate, and adjacent second CMs mechanically coupled to second alignment features on the baseplate. In this array, a given first CM is electrically coupled to a given set of electrical proximity connectors. Additionally, the array includes bridge components, wherein a given bridge component is electrically coupled to the second SCM and another set of electrical proximity connectors, which is electrically coupled to the set of electrical proximity connectors, thereby facilitating communication of other data signals between adjacent first CMs and second CMs via electrical proximity communication.

Abstract: An operational optical transceiver (or transmitter or receiver) configured to contain a module command interface. The optical transceiver includes at least one processor, a memory location dedicated for high level commands, and a library of microcode that control specific optical transceiver operations. A high level command is written to the memory location dedicated for high level commands. The processor determines that the high level command has been written to the memory location, identifies what the command is, and executes microcode from the microcode library that corresponds to the high level command. The executed microcode causes the optical transceiver to perform the operation directed by the high level command.

Abstract: The present invention provides an optical transceiver with a function of the wavelength division multiplexing. The transceiver includes a receiver optical unit, a transmitter optical units and a substrate. Both optical unit includes a plurality of receiver optical subassemblies (ROSAs) or a plurality of transmitter optical subassemblies (TOSAs) and a plurality of wavelength selective filters. The ROSAs or the TOSAs in respective optical units is electrically connected with the circuit on the substrate by the flexible printed circuit (FPC) board with a plurality of branches, each connected to the ROSAs or the TOSAs, and a connecting portion fixed to the substrate.

Abstract: An optical transceiver for converting and coupling an information-containing electrical signal with an optical fiber including a housing having an electrical connector with a plurality of XFI electrical interfaces for coupling with an external electrical cable or information system device and for transmitting and/or receiving an information-containing electrical signal having a data rate of at least 10 Gigabits per second on each interface, and a fiber optic connector adapted for coupling with an external optical fiber for transmitting and/or receiving an optical communications signal having a data rate at least 40 Gigabits per second; and at least one electro-optical subassembly in the housing for converting between an information-containing electrical signal and a modulated optical signal corresponding to the electrical signals.

Abstract: An optical communications device has light transmitters of a first wavelength that are coupled to a number of first waveguides of an optical data link, respectively. A second set of light transmitters of a second, different wavelength are coupled to another set of waveguides of the link, respectively. The light transmitters are to transmit data from the same data processing element that is to use the link to communicate with another data processing element. The device also has a set of light detectors of the first wavelength that are coupled to the second set of waveguides, respectively. Another set of light detectors of the second wavelength are coupled to the set of first waveguides, respectively. Other embodiments are also described and claimed.

Abstract: An optical transceiver is provided which includes: a bi-directional optical subassembly; a printed circuit board which transmits and receives light for the bi-directional optical subassembly; and an outer casing which covers the bi-directional optical subassembly and the printed circuit board. The bi-directional optical subassembly includes: a laser diode; a photodiode; a stem on which to laser diode and the photo diode are mounted; a cap, which cooperates with the stern to seal the laser diode and the photodiode; and a crosstalk reducing structure for reducing optical and/or electric crosstalk. The crosstalk reducing structure may include a layer which is formed on an inner surface of the cap and is able to absorb an infrared ray.

Abstract: A shield device for preventing the emission of electromagnetic interference (“EMI”) from an optoelectronic device, such as an optical transceiver, is disclosed. In particular, an EMI shield is disclosed for placement within an optical transceiver module in order to intercept and absorb EMI produced by electronic components included within the transceiver. This absorption by the EMI shield prevents EMI from escaping the optical transceiver module and interfering with other electronic components that are typically placed in close proximity to the transceiver. The EMI shield in one embodiment includes a sheet of EMI absorbing material that is sized for placement within the transceiver. The EMI shield can be interposed between an outer shell of the transceiver and electronic components located on a printed circuit board that is disposed within the transceiver. The proximity of the EMI shield to the EMI-producing electronic components maximizes EMI absorption by the shield.

Abstract: The invention relates to a device for coupling electrical data lines, especially a bus system, to a modular valve station which comprises a plurality of valve modules. The coupling device comprises a coupling module that can be connected to the electrical data lines for converting the electrical signals of the data lines to optical signals, and a transceiver module for data communication with the valve modules which communicates with the electrical coupling module by optical means and can be coupled to the valve module on the input side.

Abstract: Optical waveguides and optical transceivers are formed on one main surface of a semiconductor substrate. A light source is provided on one side surface of the semiconductor substrate, and emits light to the optical waveguides. In each of the optical transceivers, when a voltage is applied to a silicon layer, an optical resonator resonates with any one of the light components traveling through the optical waveguides, and emits the light component to an optical transmission member. In addition, in each of the optical transceivers, when a voltage is applied to the silicon layer, another optical resonators resonate with light traveling through the optical transmission member and emit the resonance light to photodetectors, respectively.

Abstract: In order to solve the problem of determining a barrier layer temperature in a semiconductor communication component (1) and thus to guarantee normal operation of the same, for example in a communication system (10) in the form of an xDSL connection card, according to the present invention temperature sensing means (20) for gauging the barrier layer temperature of a circuit arrangement on the communication semiconductor component (1) are integrated in the same. In accordance with the invention the communication system (10) comprises at least one communication semiconductor component (1) according to the invention and a control unit (12), that utilizes the values of the barrier layer temperature made available by the temperature sensing means, which are integrated in the communication semiconductor component (1), and this can be used for regulating cooling devices (18, 19) or for switching the communication semiconductor component (1) to an energy saving mode for example.

Abstract: An optical communication unit performs a bidirectional information transmission between a circuit device in a fixed housing and a circuit device in a moving housing with an optical signal. The optical communication unit includes a light transmitting unit that transmits the optical signal, a light receiving unit that receives the optical signal from the light transmitting unit, and a light propagation path for propagating the optical signal from the light transmitting unit to the light receiving unit. The light propagation path is disposed inside a hinge part that links the fixed housing and the moving housing in an openable and closable manner.

Abstract: An optical transmission control circuit includes: an analog input section which receives optical transmission states as an analog values; an A/D conversion section which converts the analog values into digital values; a value storage section which stores maximum value of the digital values provided by the A/D conversion section; an output register which outputs a value to a host apparatus; and a control section which controls the maximum value storage section to store the maximum value of the digital values therein and controls the output register to output the maximum value to the host apparatus.

Abstract: A bidirectional optical module according to the present invention comprises light emitting elements 110, 130 that emit light to enter an optical fiber 71, a light receiving element 190 that receives light having exited the optical fiber 71 and a light branching element 160 that guides the light having exited the optical fiber 71 onto the light receiving element 190. It further includes a stray light shielding member 185 disposed between the light branching element 160 and the light receiving element 190 and having formed therein an opening 186, through which the light to enter the light receiving element 190 passes. The stray light shielding member 185 blocks stray light 100b while light 100a having exited the fiber 71 passes through the opening 186. Therefore, any increase in the extent of error in the detection of the returning light level or the position of a reflecting point is prevented.

Abstract: A reflector for use in an optical transceiver module and methods for making and using the reflector are provided. The methods for making the reflector reduce the amount of processing and handling of the wafer that are required, thereby reducing manufacturing costs and increasing yield. The reflector may have a diffraction-inducing structure formed thereon such that light received from the light source is redirected in a plurality of directions, including toward a lens that couples light into an end of a transmit fiber and in at least one other direction for being sensed by a detector that converts the detected light into electrical energy.

Abstract: A central component of a processor based system, the central component including a processor and an optical interface to transmit data encoded as an optical signal to an optical interface of an external component of the processor based system, and to receive data encoded as an optical signal from the optical interface of the external component, the external component being one or more of an external peripheral device, a docking station, and a port replicator.

Abstract: Alerts, such as laser driver current alarms, are triggered in an optoelectronic device based on dynamic digital diagnostics, such as operating temperature. Optoelectronic devices may execute microcode structured to represent a formulaic relation between a first parameter (e.g., temperature) and an indicator value for a second parameter (e.g., laser driver current). The microcode may further be structured to cause the optoelectronic device to access the first parameter, calculate an indicator value for the second parameter based on the accessed first parameter using the formulaic relation, access the second parameter, and compare the indicator value with the second parameter to determine whether to trigger an alert. If the second parameter exceeds the indicator value, the alert may be triggered, and may be indicative of potentially imminent optoelectronic device failure.

Abstract: A photonic integrated circuit (PIC) for a PON transceiver comprises a single monolithic chip having a modulated transmitter laser diode of a first wavelength, ?1, for generating a first communication signal outgoing from the chip via an input/output port and a receiving photodetector for receiving a second communication signal of a second wavelength, ?2, onto chip incoming from the input/output port and a monitoring photodetector for receiving a portion of the first communication signal to monitor the laser diode output power.

Abstract: Gigabit Ethernet connectivity is realized using off-the-shelf GIGABIT INTERFACE CONVERTER transceivers, wave division multiplexer/demultiplexers, and a single optical fiber. Simultaneous and bi-directional optical communication over a single optical fiber connecting two or more nodes is achieved by using at least one GIGABIT INTERFACE CONVERTER transceiver having at least one optical signal output and an optical signal input that are of different wavelengths from each other.

Abstract: An optical module has multiple optical devices. At least two of the multiple optical devices are a group. Each of the optical devices in the group are individually selectable relative to the others. The optical module also has a controller, coupled to the devices such that the controller can select which of the devices in the group will be active at a given time. A communications network has a first transmitter having a number of usable channels, a first receiver, and optical fibers connecting the first transmitter to the first receiver. The first transmitter has multiple lasers, at least some being selectable as either active or backup lasers. The multiple lasers are controllable such that, if a specific channel is in use by an active laser and a laser failure occurs for that channel, a redundant laser can be substituted for the active laser and, after the substitution, the specific channel can be used using the redundant laser.

Abstract: An optical transceiver for detecting an incoming light beam and for transmitting an outgoing light beam along a common optical axis is provided. Such an optical transceiver provides a compact optical transceiver that is suitable for a wide variety of applications.

Abstract: 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 receptacle is secured. The duplex receptacle has a C-shaped opening, the upper and lower portions of which are defined by upper and lower flexible retaining elements for receiving and retaining a duplex optical connector therein. An electrical assembly of the module is secured within the transceiver module housing. The electrical assembly comprises a PCB, the back end of which is configured as a plug end for removably plugging the PCB into a receptacle of an external communications management system.

Abstract: This disclosure generally concerns modules. In one example, a module includes a housing, a printed circuit board, and an optical subassembly. The housing has a first part and a second part, with the second part holding the printed circuit board and optical subassembly. The printed circuit board has a contact element located near one end of the printed circuit board. The optical subassembly includes a connector which has a free end. The free end of the connector and the contact element of the printed circuit board are pinched together when the first and second parts of the housing are joined, thus forming an electrical connection.

Abstract: In an IR communication network, a method is described to optimize channel performance in the presence of strong and varying IR interference. The method controls of the channel gain based on quantitative measurement of the channel noise.

Abstract: Embodiments of a system are described. This system includes an array of single-chip modules (CMs), which includes a first CM and a second CM which are coupled to each other. A given CM, which can be either the first CM or the second CM, includes a semiconductor die that is configured to communicate data signals with other CMs by capacitively coupled proximity communication and optical proximity communication using proximity connectors. These proximity connectors are proximate to a surface of the semiconductor die, and the semiconductor die includes an optical signal path configured to communicate on-chip optical signals.

Abstract: A high-speed digital interface (HSDI) transceiver with bi-directional HSDI function includes a transmitter, a receiver, a first multiplexer, and a controller. The first multiplexer is selectively coupled to the transmitter or the receiver in order to let the HSDI transceiver act as a source device or a sink device respectively. The controller is coupled to the first multiplexer for controlling a switching operation of the first multiplexer. When the HSDI transceiver is connected to an HSDI source device, the controller controls the first multiplexer to couple to the receiver to let the HSDI transceiver act as the sink device, and when the HSDI transceiver is connected to an HSDI sink device, the controller controls the first multiplexer to couple to the transmitter to let the HSDI transceiver act as the source device.

Abstract: This disclosure concerns transceivers that include CDR bypass functionality. In one example, a 10 G XFP transceiver module includes integrated CDR functionality for reducing jitter. The 10 G XFP transceiver module also implements CDR bypass functionality so that the CDR can be bypassed at rate less than about 10 Gb/s, such as the Fibre Channel 8.5 Gb/s rate for example.

Abstract: A signal interface includes a dual-drive device having a first and a second input port that receive an outgoing signal. One of the first and the second input ports also receive an incoming signal. The dual-drive device passes the incoming signal to an output port while isolating the outgoing signal from the incoming signal.