Abstract: A semiconductor laser device comprises a stem serving as a base; a laser diode LD submount having surface electrodes arranged thereon and joined to the surface of the stem; an LD chip joined to the surface electrode and connected with the surface electrode; and leads fixed in through holes formed in the stem by means of sealing parts and electrically connected to the surface electrodes via embedded layers in via holes formed in the LD submount, wherein grooves are formed in portions of the sealing parts or in portions of the LD submount around the connections between the leads and the embedded layers, to obtain a good modulated light waveform.

Abstract: Tunable dielectric resonators for the modulation of freespace radiation and methods of using the resonators are provided. The dielectric resonators include a planar waveguide that supports a vertical Fabry-Perot resonance, a grating that supports a qBIC resonance, and a radiation absorbing material having an electronically or thermally tunable absorption at the qBIC resonant frequency. Using this resonator design, the intensity of the transmission and reflection of the qBIC resonance can be modulated by modulating the absorption properties of the absorbing material at the qBIC resonant frequency.

Abstract: An example optoelectronic module includes a housing that extends between a first end and an opposite second end. The optoelectronic module includes a printed circuit board (“PCB”) with an electrical connector at an end thereof, a transmitter electrically coupled to the PCB, a receiver electrically coupled to the PCB, and a receiving member including a plurality of ports each configured to receive a respective one of a plurality of fiber optic cables. In one aspect, the receiving member includes a plurality of deformable retaining members configured to be positioned in corresponding receptacles of the housing member in an arrangement structured to limit movement of the receiving member. In another aspect, the module also includes a plurality of fiber optic cable receptacles and a receptacle retaining member is positioned between the housing and the receptacles and limits movement of the receptacles in the housing.

Abstract: A Power over Ethernet (PoE) power supply device, a PoE power supply system, an interface part, and a method for detecting an optical module, and pertaining to the field of communications technologies, where the PoE power supply device includes a photoelectric composite interface part, and wherein the photoelectric composite interface part integrates an optical interface and an electrical interface, and is configured to be coupled to a photoelectric composite module. The photoelectric composite interface part can complete PoE power supply while transmitting a signal.

Abstract: A connector includes: a circuit board; a first heat transfer material arranged on a principal surface of the circuit board; a first shell having an end mated with a mating connector in a state in which the terminal end portion of the circuit board protrudes from the end, and includes an opposite opposed to at least a part of a target region which is a region other than the terminal end portion, covers at least a part of the target region, and is conductive; a second shell connected to an end of the first shell, covers at least a part of the target region of the principal surface, and is thermally conductably connected to the circuit board in contact with the first heat transfer material; and a third shell engaged with the second shell, covers at least a part of the target region of a principal surface, and is conductive.

Abstract: In a fiber connection structure with optical connectors according to one embodiment, among m first connector port groups, arrangement orders of colors of a plurality of the optical fibers in (2×j?1)th (j is a natural number satisfying 1?j and 2×j?m) first connector port groups are the same, and among the m first connector port groups, arrangement orders of the colors of the plurality of optical fibers in (2×j)th first connector port groups are the same. The arrangement order of the colors of the plurality of optical fibers in the (2×j)th first connector port group is a reverse order of the arrangement order of the colors of the plurality of optical fibers in the (2×j?1)th first connector port group.

Abstract: An optical network communication system utilizes a passive optical network including an optical hub having an optical line terminal, downstream transmitter, an upstream receiver, a processor, and a multiplexer. The upstream receiver includes a plurality of TWDMA upstream subreceivers. The system includes a power splitter for dividing a coherent optical signal from the optical hub into a plurality of downstream wavelength signals, a long fiber to carry the coherent optical signal between the optical hub and the power splitter, and a plurality of serving groups. Each serving group includes a plurality of optical network units configured to (i) receive at least one downstream wavelength signal, and (ii) transmit at least one upstream wavelength signal. The system includes a plurality of short fibers to carry the downstream and upstream wavelength signals between the power splitter and the optical network units, respectively. Each upstream subreceiver receives a respective upstream wavelength signal.

Abstract: Disclosed are an optical signal outputting device and method, and a storage medium. The device includes a pump laser, first fiber grating and target fiber grating connected seriatim, the pump laser being configured to emit a first optical signal to the first fiber grating upon receiving a target waveband optical signal transmission instruction, and convert a second waveband optical signal into a target waveband optical signal by resonance upon receiving an optical signal adjusting instruction, then output the same; the first fiber grating being configured to filter the first optical signal to obtain a first waveband optical signal and send it to the target fiber grating; and the target fiber grating being configured to filter the first waveband optical signal to obtain a second waveband optical signal and the target waveband optical signal to use one of them to deliver the optical signal adjusting instruction to the pump laser.

Abstract: An optical module includes a lens assembly and an optical fiber holder. The lens assembly includes a lens base, a first positioning column and a second positioning column. The optical fiber holder includes a first positioning hole and a second positioning hole. The first positioning hole is disposed on a second assembly surface and corresponds to a position of the first positioning column; the first positioning hole has an opening on the second assembly surface and an opening on a first side surface connected with the second assembly surface, and the two openings are connected. The second positioning hole is disposed on the second assembly surface and corresponds to a position of the second positioning column; the second positioning hole has an opening on the second assembly surface and has an opening on a second side surface connected with the second assembly surface, and the two openings are connected.

Abstract: A wavelength-selective optical reception device includes a photoreceptor (21) that converts optical signals (201) into electric signals and outputs the electric signals, a base (31) on which the photoreceptor (21) is provided, a housing (41) that is mounted on the base (31) and surrounds the photoreceptor (21) along with the base (31), and that is provided with a window (51) to pass optical signals (203) including the optical signals (201) and including optical signals (202) of a wavelength different from a first wavelength of the optical signals (201) and a window (52) to pass the optical signals (202), and an optical filter (61) that is disposed inside the housing between the window (51) and the photoreceptor (21) along the optical axis (205) of the optical signals (203), and that outputs, out of the optical signals (203) that enter thereto, the optical signals (201) toward the photoreceptor (21), and reflects the optical signals (202) toward a near side in a direction of travel of the optical signals (203)

Abstract: The present disclosure relates to an active optical cable connector and an active optical cable assembly. The active optical cable connector includes a power supply interface, an optoelectronic conversion module and a short-range wireless communication module, wherein the power supply interface is electrically connected with the optoelectronic conversion module and the short-range wireless communication module, respectively, and the short-range wireless communication module is configured to transmit a control signal and a low-speed signal of the active optical cable.

Abstract: The present disclosure provides a method, apparatus and system for transmitting OMCI messages. The method includes receiving an OMCI message from a cloud server, wherein the cloud server supports vOMCI; judging whether the received OMCI message is associated with device information of the optical line terminal, if so, obtaining device association information corresponding to the received OMCI message, filling the device association information into the received OMCI message, and sending the filled OMCI message to the optical network terminal, otherwise, sending the received OMCI message directly to the optical network terminal.

Abstract: A technology is described for a Photonic Integrated Circuit (PIC) radio frequency (RF) in-phase quadrature phase (I/O) correlator. The PIC RF Correlator can comprise two optical waveguides to receive first and second optical signals that are modulated by first and second RF signals, respectively. Two 1 to M optical splitters can split the first and second RF modulated optical signals. Optical delay lines can delay the M split first RF modulated optical signals. M optical balanced couplers can receive and combine the M first delayed RF modulated optical signals with the M split second RF modulated optical signals. Balanced photodetectors can output a differential integration on the first and second combined RF modulated optical signals for in-phase and quadrature phase signals. A processor can add the outputs of the M optical balanced photodetectors to form a frequency domain correlated signal of the first and second RF signals with real and imaginary parts.

Abstract: The present invention provides systems and methods for providing interactive visual images in a mobile-based crowdsourcing platform. More specifically, the system of the present invention includes a plurality of remote mobile devices and a visual imaging system configured to communicate and exchange data with a cloud-based service, such as a crowdsourcing platform. The crowdsourcing platform generally provides a geolocation service based on the crowdsourcing, or polling, of users of the mobile devices, in addition to visual data captured by the visual imaging system, so as to determine location and movement of the users within a specific environment. The system is further configured to automatically render an augmented or virtual reality floor plan or layout of a location based on the user data and visual data.

Abstract: The present disclosure describes a network switch design that includes a vertical switch circuit board that is mounted parallel to the front panel of the network switch. The vertical circuit board supports switch chip(s) to process and forward packets and optical module connectors to receive pluggable optics modules that provide connections to other network switches. The arrangement of the circuit board, switch chip(s) and optical module connectors achieves reduced lengths for the electrical signal traces that connect the switch chip(s) to the optical module connectors. In addition, the design improves cooling by providing separate airflow regions between the switch chip heatsink(s) and the optics modules. The vertical switch card assembly and its components can be made removable from the front panel for ease of servicing.

Abstract: Embodiments of the invention describe apparatuses, optical systems, and methods for utilizing a dynamically reconfigurable optical transmitter. A laser array outputs a plurality of laser signals (which may further be modulated based on electrical signals), each of the plurality of laser signals having a wavelength, wherein the wavelength of each of the plurality of laser signals is tunable based on other electrical signals. An optical router receives the plurality of (modulated) laser signals at input ports and outputs the plurality of received (modulated) laser signals to one or more output ports based on the tuned wavelength of each of the plurality of received laser signals. This reconfigurable transmitter enables dynamic bandwidth allocation for multiple destinations via the tuning of the laser wavelengths.

Abstract: Provided is a single-fiber bi-directional optical transceiver sub-assembly capable of improving the wavelength separation characteristics of a multiplexing/demultiplexing filter while also attaining a compact size. A single-fiber bi-directional optical transceiver sub-assembly is provided with a housing, an optical receptacle, a multiplexing/demultiplexing filter, a receiving-side photoelectric converter, a transmitting-side photoelectric converter, an isolator, and a collimating lens. The multiplexing/demultiplexing filter is disposed on the optical path between the optical receptacle and the transmitting-side photoelectric converter and on the optical path between the optical receptacle and the receiving-side photoelectric converter. The isolator passes optical signals outputted from the transmitting-side photoelectric converter and blocks optical signals proceeding to the transmitting-side photoelectric converter.

Abstract: A technology is described for a Photonic Integrated Circuit (PIC) radio frequency (RF) correlator. The PIC RF Correlator can comprise two optical waveguides to receive first and second optical signals that are modulated by first and second RF signals, respectively. Two 1 to M optical splitters can split the first and second RF modulated optical signals. Optical delay lines can delay the M split first RF modulated optical signals. M optical balanced couplers can receive and combine the M first delayed RF modulated optical signals with the M split second RF modulated optical signals. Balanced photodetectors can output a differential integration on the first and second combined RF modulated optical signals. A processor can add the outputs of the M optical balanced photodetectors to form a frequency domain correlated signal of the first and second RF signals.

Abstract: A control system for a battery system is provided. The control system includes a master controller and a slave controller using light-based communication. The master controller includes a light source and a transmission controller controlling the light source, and the slave controller includes a photo-sensitive element, a wake-up circuit, a power supply node, and a receiver circuit. The photo-sensitive element receives the light signals emitted by the light source and, in response to receiving a wake-up light signal, outputs a wake-up signal to the wake-up circuit, and in response to receiving the wake-up signal from the photo-sensitive element, the wake-up circuit connects the receiver circuit to the power supply node or to the photo-sensitive element. When the receiver circuit is connected to the power supply node and the photo-sensitive element, the receiver circuit receives an operation voltage from the power supply node and receives reception signals from the photo-sensitive element.

Abstract: An optical network communication system includes an optical hub, an optical distribution center, at least one fiber segment, and at least two end users. The optical hub includes an intelligent configuration unit configured to monitor and multiplex at least two different optical signals into a single multiplexed heterogeneous signal. The optical distribution center is configured to individually separate the at least two different optical signals from the multiplexed heterogeneous signal. The at least one fiber segment connects the optical hub and the optical distribution center, and is configured to receive the multiplexed heterogeneous signal from the optical hub and distribute the multiplexed heterogeneous signal to the optical distribution center. The at least two end users each include a downstream receiver configured to receive one of the respective separated optical signals from the optical distribution center.