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1. WO2022246695 - IMPROVING CLASSICAL AND QUANTUM FREE-SPACE COMMUNICATION BY ADAPTIVE OPTICS AND BY SEPARATING THE REFERENCE AND SIGNAL BEAMS

Publication Number WO/2022/246695
Publication Date 01.12.2022
International Application No. PCT/CN2021/096100
International Filing Date 26.05.2021
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
H04B 10/00
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
H04B 10/11
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
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
Applicants
  • THE UNIVERSITY OF HONG KONG [CN]/[CN]
Inventors
  • CHAU, Hoi Fung
  • CHAN, Kai Sum
Agents
  • LIU, SHEN & ASSOCIATES
Priority Data
Publication Language English (en)
Filing Language English (EN)
Designated States
Title
(EN) IMPROVING CLASSICAL AND QUANTUM FREE-SPACE COMMUNICATION BY ADAPTIVE OPTICS AND BY SEPARATING THE REFERENCE AND SIGNAL BEAMS
(FR) AMÉLIORATION DE LA COMMUNICATION À ESPACE LIBRE CLASSIQUE ET QUANTIQUE PAR OPTIQUE ADAPTATIVE ET PAR SÉPARATION DES FAISCEAUX DE RÉFÉRENCE ET DE SIGNAL
Abstract
(EN) Disclosed is a method of improving an information transmission rate involving reducing atmospheric distortions by emitting at the same or nearly the same wavelength a reference source for adaptive optic correction and a signal source for optical communication, the reference source brighter than the signal source, wherein optical paths of a reference source beam and a signal source beam have about same wavefront distortion; detecting the reference source beam and detecting the signal source beam in a side by side manner; and using adaptive optics for wave distortion correction on the reference source to simultaneously correct distortion of the signal source.
(FR) Est divulgué un procédé d'amélioration d'un taux de transmission d'informations consistant à réduire des distorsions atmosphériques par émission à la même longueur d'onde ou quasiment à la même longueur d'onde d'une source de référence pour une correction optique adaptative et d'une source de signal pour une communication optique, la source de référence étant plus brillante que la source de signal, des trajets optiques d'un faisceau de source de référence et d'un faisceau de source de signal ayant approximativement la même distorsion de front d'onde ; détecter le faisceau de source de référence et détecter le faisceau de source de signal d'une manière côte à côte ; et utiliser une optique adaptative pour une correction de distorsion d'onde sur la source de référence pour corriger simultanément une distorsion de la source de signal.
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