Optical communication module. The optical communication module includes an optical-connector input and output unit that is provided on a first face of a substrate, the optical-connector input and output unit including a first light reflection member which is arranged at each of N grid points and which reflects incident light at a right angle; an optical-device optical input and output unit that is provided in adjacent to the optical-connector input and output on the first face of the substrate including N second light reflection members which are arranged in a linear manner with spaces therebetween; a plurality of optical waveguides that are provided on the first face of the substrate; and an optical device that is provided on a second face of the substrate, the optical device including N light-receiving units or N light-emitting units which are aligned with N light transmission units of the substrate.

Methods, systems, and devices for network communications to reduce optical beat interference (OBI) in upstream communications are described. For example, a fiber node may provide a seed source to injection lock upstream laser diodes. Therefore, upstream communications from each injection locked laser diode may primarily include the wavelength associated with each seed source. The seed sources may be unique to each end device and configured to minimize OBI. That is, the upstream laser diodes may be generic, but the collected seed source may enable upstream communications at varying wavelengths. The end device may provide upstream communications by externally modulating a signal generated by the injection locked laser diode.

The present application relates to a method and apparatus for transmitting a data signal between a stator ring and a rotor ring including generating, by a transmitter, a transmission signal in response to receiving the data signal, transmitting, by a plurality of optical transmitters coupled to an inner surface of the stator ring, the transmission signal to a plurality of detectors coupled to an outer surface of the rotor and wherein the optical transmitters are configured to transmit the transmission signal towards a focus of the stator ring, summing a plurality of representations of the transmission signal received by each of the plurality of detectors to generate a summed transmission signal, and extracting, by a receiver, the data signal from the summed transmission signal.

Aspects of the present disclosure describe single mode fiber distributed temperature sensing (DTS) with improved noise characteristics employing superluminescent emitting diodes (SLEDs) and/or amplified spontaneous emission (ASE) light sources.

An LED light fixture includes one or more optical transceivers that have a light support having a plurality of light emitting diodes and one or more photodetectors attached thereto, and a processor in communication with the light emitting diodes and the one or more photodetectors. The processor is constructed and arranged to generate a communication or data transfer signal.

According to one embodiment, a repair terminal includes reception means for receiving a setting value of a predetermined setting item set in an information processing device by visible light communication using light emitted by a light source device connected to the information processing device; matching means for matching a setting value of the setting item received by the reception means with a matching setting value corresponding to the setting item and determining appropriateness of the setting value; and output means for outputting a matching result of the matching means.

A method by a mobile device for conveying information communicated via a plurality of discrete indicator lights of an electronic device. The method includes capturing, via an image capturing component of the mobile device, a light pattern emitted by the plurality of discrete indicator lights of the electronic device, where the light pattern communicates information related to the electronic device according to a pre-defined light pattern scheme, interpreting the light pattern in accordance with the pre-defined light pattern scheme to determine the information communicated by the light pattern, and conveying the information communicated by the light pattern to an end user.

A smart light source configured for visible light communication. The light source includes a controller comprising a modem configured to receive a data signal and generate a driving current and a modulation signal based on the data signal. Additionally, the light source includes a light emitter configured as a pump-light device to receive the driving current for producing a directional electromagnetic radiation with a first peak wavelength in the ultra-violet or blue wavelength regime modulated to carry the data signal using the modulation signal. Further, the light source includes a pathway configured to direct the directional electromagnetic radiation and a wavelength converter optically coupled to the pathway to receive the directional electromagnetic radiation and to output a white-color spectrum. Furthermore, the light source includes a beam shaper configured to direct the white-color spectrum for illuminating a target of interest and transmitting the data signal.

A coherent fiber bundle may be used to optically connect an array of microLEDs to an array of photodetectors in an optical communication system.

Provided is a visible light communication transceiver. A drive amplification module performs digital-to-analog conversion and amplification on a digital modulation signal to obtain a first electrical signal, and transmits the signal to a Bias Tee-like circuit. The Bias Tee-like circuit transmits the first electrical signal to a LED light source. The LED light source performs electrical-to-optical conversion on the first electrical signal to generate a first optical signal and transmits the first optical signal, and performs optical-to-electrical conversion on a received second optical signal to obtain a second electrical signal. The Bias Tee-like circuit obtains the second electrical signal from the LED light source, and transmits the second electrical signal to an adaptive amplification and equalization module. The adaptive equalization module adjusts a gain of the second electrical signal based on an optical power of the first optical signal.