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:
May. 19, 2026
Filed:
Oct. 15, 2024
Huazhong University of Science and Technology, Hubei, CN;
HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY, Hubei, CN;
Abstract
Disclosed is a method and a device for rapidly measuring the transmission matrix of an ultra-long optical fiber, belonging to the field of information optics. The solution couples the spatial mode into ultra-long few-mode/multi-mode optical fiber for transmission. By obtaining the common path reference light at the output end of the ultra-long few-mode/multi-mode optical fiber and interfering with the signal light at the output end, the complex amplitude distribution of the signal light field output by the optical fiber is reconstructed, weight coefficients of different modes are obtained by performing overlapping integral on the complex amplitude distribution and the ideal complex amplitude distribution of different spatial modes. The transmission matrix of the ultra-long few-mode/multi-mode optical fiber can be obtained by rapidly switching the mode incident into the ultra-long few-mode/multi-mode optical fiber and sequentially calculating the weight coefficients of the different modes at the output end.
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