Abstract: The Electromagnetic Materials Identification Tool (EMIT) is a handheld-tool for laboratory, industrial, or field use, via portable devices or integrated systems. EMIT establishes a new EM wave-state category in the Periodic Table of Elements, identifying materials as structured spatial wave-state expressions that preserve particle spin, position, superposition, and spatial relationships. Signatures are viewed/stored as Electromagnetic Holograms (EmH) on Resonant Encoded Memory (REM). EMIT comprises a Quantum Transceiver Antenna (QTA) and coupled Transceiver Discriminator (TD). The QTA detects and synthesizes multidimensional EmH-signatures of elements, gemstones, minerals, synthetics and organics, by volume, concentration, and/or purity, for real-time identification and material transformation. AI enhances signature analysis, anomaly detection, and enhanced resolution. EMIT integrates with NMR, MRI, X-ray, Ultra-sound, microscope and telescope systems.

Abstract: An estimation apparatus includes: an acquiring unit that acquires performance information corresponding to the performance of light from nodes configuring an optical network; and an estimating unit that compares the performance information to be an estimation target acquired by the acquiring unit with performance information at normal time at which no anomaly occurs, and performs at least one of estimation of anomaly occurrence and identification of an anomaly occurring node.

Abstract: An Optical Line Terminal (OLT) system configured to operate in a Passive Optical Network (PON) includes a transmitter configured to communicate with a plurality of Optical Network Units (ONUs) on a downstream channel that is shared by all of the plurality of ONUs; and one or more receivers configured to communicate with the plurality of ONUs on an upstream channel and on an out-of-band channel, wherein the upstream channel is Time Division Multiple Access (TDMA) such that one of the plurality of ONUs transmits at a time. Also, the OLT system can include circuitry configured to cache characteristics of the plurality of ONUs for configuring the receiver.

Abstract: This invention provides a network node comprising: an optical fibre interface configured to receive, from one or more remote optical sources, a first optical signal, a second optical signal and a third optical signal, wherein the first, second and third optical signals each have a respective wavelength within an optical fibre transmission band being one of the O-band, E-band, S-band, C-band, L-band, and U/XL-band; one or more wavelength converters configured to convert the wavelength of one or more of the first optical signal, second optical signal and third optical signal; and a Rydberg-atom based transmission medium configured to be excited by the first optical signal, second optical signal and third optical signal, following wavelength conversion of one or more of the first optical signal, second optical signal and third optical signal, such that electrons of the Rydberg-atom based transmission medium are excited to a predetermined Rydberg state.

Abstract: A lighting apparatus includes a light source, a power module, a controller, a data input module and a signal processing unit. The light source includes multiple types of LED modules. The power module converts an AC power to a DC power. The controller generating multiple driving currents supplied to the LED modules. The data input module is coupled to the controller. The data input module receives input data to be transmitted. The signal processing unit is coupled to the data input module to process the input data into multiple data streams corresponding to the plurality of transmit antennas. Each transmit antenna transmits the corresponding data stream independently.

Abstract: A burden for configurating optical transmission equipment is increased as capacity in an optical transmission system is increased. An optical control device according to the present invention includes a storage means for storing transmission characteristics information in advance, the transmission characteristics information relating to an optical transmission system that transmits signal light via an optical transmission line, a first connection means for receiving the signal light and test light having a wavelength different from that of the signal light, an optical modulation means for modulating the test light by using the transmission characteristics information, and generating test modulation light, and a second connection means for delivering the test modulation light.

Abstract: A computing device may include a substrate. A computing device may include a processing unit supported by the substrate. A computing device may include an optical transmitter supported by the substrate and in electrical communication with the processing unit.

Abstract: The invention relates to an Optical Front-end, OFE, (400) for Optical Wireless Communication, OWC, the OFE comprising: an optical receiver with at least a photodetector (102a) and a trans-impedance amplifier, and a two-dimensional array of optical transmitters (103a) each having an individual transmitter field-of-view, and one or more drivers, the two-dimensional array arranged to create a combined transmitter field of view that is larger than 5 the individual transmitter field of view, the plurality of optical transmitters arranged such that optical axes of the plurality of optical transmitters are evenly distributed within the combined transmitter field of view.

Abstract: A method of categorizing a group of multimode optical fibers, the method including comparing an effective modal bandwidth of a first multimode optical fiber with a first threshold, the first multimode optical fiber being in a group of multimode optical fibers meeting a first OM-standard and the first threshold being an effective modal bandwidth of the first multimode optical fiber. The method further including categorizing the first multimode optical fiber as meeting OM functional requirements of a second OM-standard if the effective modal bandwidth of the first multimode optical fiber is equal to or above the first threshold, wherein the second OM-standard is higher than the first OM-standard.

Abstract: Examples include a network node for a non-detectable laser communication system, a bi-directional laser communication system comprising such a network node, a method for a non-detectable laser communication, and in particular to an optronic system for non-detectable, compact bi-directional laser communication, which is particularly suitable for communication with a drone or other unmanned vehicle (UXV).

Abstract: A beaconless alignment approach can be used such as to facilitate establishment of an optical communication link or to enhance reliability of such an optical communication link. When laser-based free-space optical communication is used, such an approach can be referred to as an agile beaconless laser beam alignment (ABLBA) technique. Such an ABLBA technique can consume less scanning time as compared to other approaches and can be used for alignment in relation to establishing an optical communication link between stations, such as between satellites. For example, at a transmitting station, a non-optical beam can be scanned according to a first specified search pattern within an initial search field, and an optical field can be scanned according to a second specified search pattern within a refined search field, the refined search field established at least in part using an alignment identified from the scanning of the non-optical beam.

Abstract: A free-space optical communication system includes an optical phased array (OPA) photonic integrated chip, a transceiver photonic integrated chip, and one or more processors. The OPA chip includes a plurality of array elements and a plurality of phase shifters. The transceiver chip includes one or more transmitter components and one or more receiver components. The one or more processors are configured to transmit a first signal via the OPA chip and the transceiver chip, and receive a second signal via the OPA chip and the transceiver chip.

Abstract: A service processing method and apparatus and a device is disclosed. Synchronization headers of four 66b code blocks are removed, and a 1-bit code block type indication is added as control information of service data, to be encoded as a 257b code block. This avoids a bandwidth waste caused by the synchronization headers, and improves bandwidth utilization. When a 257b code block stream is mapped to an OSUflex frame, the code block type indication is mapped to an overhead area of the OSUflex frame, the four 66b code blocks from which the synchronization headers are removed are mapped to a payload area of the OSUflex frame, and check information obtained by checking the control information is mapped to the overhead area of the OSUflex frame, so that bit error protection is performed on the control information.

Abstract: In accordance with an embodiment, a method includes determining, by a standby optical line terminal (OLT), that a primary OLT has stopped sending a downlink optical signal over a first management channel; sending, by the standby OLT, a ranging request to a first optical network unit (ONU), over a second management channel, where the first ONU is one of the at least one ONU, and the second management channel is a channel between the standby OLT and the at least one ONU; and obtaining, by the standby OLT, a distance parameter between the first ONU and the standby OLT based on a ranging response received from the first ONU over the second management channel.

Abstract: A GaN based LED, with an active region of the LED containing one or more quantum wells (QWs), with the QWs separated by higher energy barriers, with the barriers doped, may be part of an optical communications system.

Abstract: Optical networks, network elements, and methods of use are described herein, including an optical network comprising head-end and tail-end network elements, an optical multiplex section (OMS) connecting the head-end and tail-end network elements, and one or more intermediate line amplifiers in the OMS between the head-end and tail-end network elements. The head-end network element may store first information indicative of a first tilt control section having the head-end and tail-end network elements as endpoints; determine information indicative of a change in topology of the OMS, such as that a first intermediate line amplifier has switched from a non-monitoring to a monitoring mode; and store second information indicative of a second tilt control section having the head-end network element and a new tail-end network element, such as the first intermediate line amplifier.

Abstract: Aspects of the subject disclosure may include, for example, obtaining an estimate of a phase of a reference associated with a signal received over an optical channel, obtaining an estimate of a frequency of a carrier associated with the signal, and based on the estimate of the phase of the reference and the estimate of the frequency of the carrier, estimating a location dependent property associated with a disturbance to the optical channel to determine a location estimate for the disturbance. Other embodiments are disclosed.

Abstract: Method and communication network for establishing a connection in a communications network are disclosed. The method comprises receiving, by a processor, a connection request for establishing the connection; selecting, by the processor, an input node from a plurality of input nodes in the communications network and an output node from a plurality of output nodes in the communications network; selecting, by the processor, an interconnect node from a plurality of interconnect nodes in the communications network in accordance with an order set out in a pre-determined order list that sets out a specific connection order for each of the plurality of interconnect nodes; determining whether the interconnect node has capacity to connect the input node to the output node; and in response to the interconnect node having the capacity, connecting, by the processor, the input node to the output node via the interconnect node.

Abstract: A lighting apparatus includes a light source, a power module, a controller, a data input module, a serial-to-parallel converter module, an orthogonal frequency division multiplexing (OFDM) modulation module, a radio frequency (RF) upconversion module and an antenna module. The light source including multiple types of LED modules. The controller generates multiple driving currents supplied to the LED modules. The data input module is coupled to the controller. The data input module receives input data to be transmitted. The serial-to-parallel converter module converts the input data into multiple parallel data streams. The orthogonal frequency division multiplexing (OFDM) modulation module modulates the parallel data streams onto multiple orthogonal subcarriers. The antenna module includes multiple antennas configured to transmit RF signals corresponding to the multiple data streams.

Abstract: The present disclosure is directed toward architectures that combine DWDM and CWDM concepts in a single PIC. Transmitter stages in accordance with the present disclosure include a plurality of multiwavelength lasers having regions of separately grown epitaxial material whose gain peaks are centered at different wavelengths. Each laser launches a wavelength comb comprising a plurality of wavelength signals into a PLC, where the wavelengths within each wavelength comb are separated by a wavelength spacing that is smaller than that between adjacent wavelength combs. In some embodiments, the PLC includes modulator banks for encoding data on the wavelength signals and combining them to produce a composite DWDM output signal. In some embodiments, a receiver stage is included for demultiplexing a composite DWDM input signal and detecting each wavelength channel within it.