8 Rivers Capital, LLC

Hannah Clark

William J Brown

Miles R Palmer

Michael W Adams

Dayong Zhou

Jeremy Eron Fetvedt

Damian Beauchamp

David Arthur Freed

A diverged beam optical transmitter is provided that includes a laser source configured to emit a light beam, and one or more lenses. The diverged beam optical transmitter also includes a diffuser placed between the laser source and the one or more lenses, and configured to increase an intrinsic divergence of the light beam and to fill some portion of the one or more lenses such that the light beam is eye safe after the one or more lenses.

Eye safe diverged beam optical wireless communications system

An optical receiver is provided for a diverged-beam, free space optical communications system. The optical receiver includes a demultiplexer and a detector array. The demultiplexer includes a diffractive optic configured to receive an optical beam propagating in free space. The optical beam includes a plurality of optical carrier signals of respective wavelengths for a plurality of communication channels, and the diffractive optic is configured to spatially separate the optical beam by wavelength into the plurality of optical carrier signals. The detector array includes a plurality of optical detectors configured to convert the plurality of optical carrier signals into a respective plurality of electrical signals for the plurality of communication channels. The plurality of optical detectors includes at least twice as many optical detectors as optical carrier signals in the plurality of optical carrier signals.

System for multi-channel, diverged-beam optical wireless communication

An optical communication system includes a base station and an extended reality immersion device (XRID). The base station includes an optical transmitter assembly configured to convert an electrical signal to an optical beam, and emit the optical beam in free space, uncollimated and with a divergence angle greater than 0.1 degrees. The XRID includes an optical receiver assembly having an acceptance angle greater than 0.1 degrees. The optical receiver is configured to detect the optical beam in free space, convert the optical beam to a corresponding electrical signal, and reproduce information carried by the corresponding electrical signal. The XRID also includes a head-up display configured to present the information.

System for optical wireless communication to extended reality immersion device

An optical receiver is provided that includes a detector array of multiple detector elements, and processing circuits coupled to the multiple detector elements. The detector array is configured to receive light from an external source, mix the light with light from a local oscillator to generate a spatial fringe across the detector array. The multiple detector elements are configured to convert respective portions of the spatial fringe incident on the multiple detector elements to corresponding electrical signals. The processing circuits are configured to process the electrical signals. This includes the processing circuits configured to sum those of the corresponding electrical signals from one or more of the multiple detectors, and subtract the sum from a second sum of those of the corresponding electrical signals from one or more other of the multiple detectors.

Coherent receiver for free space optical communications and lidar

A modular node for an optical communication network includes one or more transceiver modules of a plurality of transceiver modules, and a node core including a plurality of electrical connectors to electrically join up to the plurality of transceiver modules to the node core. At least some of the transceiver modules has an optical transceiver configured to emit optical beams carrying data and without artificial confinement, and detect optical beams emitted and without artificial confinement. The up to the plurality of transceiver modules electrically joined to the node core are spatially separated to provide configurable coverage for optical communication based on their number and placement. And the node core further includes switching circuitry configured to connect the one or more transceiver modules to implement a redistribution point or a communication endpoint in the optical communication network.

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Durham, NC, United States of America

Hannah Clark