The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 22, 2025
Filed:
Mar. 11, 2021
Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Shaanxi, CN;
Xiaoping Xie, Shaanxi, CN;
Xinning Huang, Shaanxi, CN;
Wei Wang, Shaanxi, CN;
Yiyi Zhao, Shaanxi, CN;
Abstract
An optical antenna includes a coarse tracking liquid crystal, a coarse tracking liquid crystal controller, a beam shrinking system, a fine tracking liquid crystal, a fine tracking liquid crystal controller, a beam splitter, a first coupling system, a single-mode optical fiber, a second coupling system, a detector and a data analysis and instruction system. The antenna can be configured to receive a laser beam from a communication target and transmit the laser beam to the communication target. The optical antenna realizes the acquisition, tracking and pointing of the space laser beam by cascade connection of two stages of liquid crystal devices. At the same time, the optical antenna has the advantages of fast beam pointing and short response time by utilizing the deflection of the Bi-stable dual-frequency liquid crystals to realize change of high-precision beam pointing.