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:
Jun. 16, 2026
Filed:
Nov. 11, 2022
Beijing Changcheng Institute of Metrology & Measurement, Avic, Beijing, CN;
Tengfei Wu, Beijing, CN;
Jibo Han, Beijing, CN;
Yu Bai, Beijing, CN;
Lei Zhang, Beijing, CN;
Linjie Lv, Beijing, CN;
Xinliang Li, Beijing, CN;
Abstract
A large-scale and high-precision absolute distance measurement system based on an all-fiber femtosecond laser, including: a first all-fiber femtosecond laser, a second all-fiber femtosecond laser, a fiber optic splitter, a first fiber optic circulator, a wavelength division multiplexer, an achromatic fiber collimator, a first fiber optic combiner, a second fiber optic combiner, a second fiber optic circulator, a semiconductor laser, a first photodetector, a second photodetector, and a data acquisition and processing module.