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1. WO2022031855 - FREE SPACE OPTICAL COMMUNICATION TERMINAL WITH DISPERSIVE OPTICAL COMPONENT, ACTUATOR SYSTEM, OR OPTICAL RELAY SYSTEM

Publication Number WO/2022/031855
Publication Date 10.02.2022
International Application No. PCT/US2021/044555
International Filing Date 04.08.2021
IPC
H04B 10/11 2013.1
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
BTRANSMISSION
10Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
11Arrangements specific to free-space transmission, i.e. transmission through air or vacuum
CPC
G02B 6/32
GPHYSICS
02OPTICS
BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
6Light guides
24Coupling light guides
26Optical coupling means
32having lens focusing means ; positioned between opposed fibre ends
H04B 10/112
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
BTRANSMISSION
10Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
11Arrangements specific to free-space transmission, i.e. transmission through air or vacuum
112Line-of-sight transmission over an extended range
H04B 10/1125
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
BTRANSMISSION
10Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
11Arrangements specific to free-space transmission, i.e. transmission through air or vacuum
112Line-of-sight transmission over an extended range
1123Bidirectional transmission
1125using a single common optical path
H04B 10/114
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
BTRANSMISSION
10Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
11Arrangements specific to free-space transmission, i.e. transmission through air or vacuum
114Indoor or close-range type systems
H04B 10/1143
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
BTRANSMISSION
10Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
11Arrangements specific to free-space transmission, i.e. transmission through air or vacuum
114Indoor or close-range type systems
1143Bidirectional transmission
H04B 10/25
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
BTRANSMISSION
10Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
25Arrangements specific to fibre transmission
Applicants
  • SA PHOTONICS, INC. [US]/[US]
Inventors
  • COWARD, James, F.
  • MITCHELL, Greg, G.
Agents
  • FARN, Michael W.
  • FARN, Michael, W.
  • MCNELIS, John, T.
  • REUTHER, Kyle, S.
  • AHN, Dohyun
Priority Data
63/061,12804.08.2020US
Publication Language English (en)
Filing Language English (EN)
Designated States
Title
(EN) FREE SPACE OPTICAL COMMUNICATION TERMINAL WITH DISPERSIVE OPTICAL COMPONENT, ACTUATOR SYSTEM, OR OPTICAL RELAY SYSTEM
(FR) TERMINAL DE COMMUNICATION OPTIQUE À ESPACE LIBRE AVEC COMPOSANT OPTIQUE DISPERSIF, SYSTÈME ACTIONNEUR OU SYSTÈME DE RELAIS OPTIQUE
Abstract
(EN) Embodiments relate to a local free space optical (FSO) terminal that transmits and receives optical beams. The FSO terminal includes a fore optic and optionally an optical relay system and an actuator system. The fore optic focuses a receive (Rx) beam to a Rx spot on a focal plane of the fore optic. The focal plane also includes a Tx spot formed by a transmit (Tx) optical beam, however the Rx and Tx spots are laterally separated at the focal plane. The optical relay system creates a conjugate spot for the Rx or Tx spot so that the Rx and Tx fibers may be axially separated. Due to the axial separation, the actuator system can adjust a lateral separation of the Rx and Tx fibers to account for point ahead of the local FSO communication terminal.
(FR) Des modes de réalisation concernent un terminal optique à espace libre (FSO) local qui émet et reçoit des faisceaux optiques. Le terminal FSO comprend un système optique avant et éventuellement un système de relais optique et un système actionneur. L'optique avant focalise un faisceau de réception (Rx) sur un point Rx sur un plan focal de l'optique avant. Le plan focal comprend également un point Tx formé par un faisceau optique d'émission (Tx), cependant les points Rx et Tx sont latéralement séparés au niveau du plan focal. Le système de relais optique crée un point conjugué pour le point Rx ou Tx de telle sorte que les fibres Rx et Tx peuvent être séparées axialement. Du fait de la séparation axiale, le système actionneur peut ajuster une séparation latérale des fibres Rx et Tx pour tenir compte du point situé en avant du terminal de communication FSO local.
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