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:
Dec. 31, 2024
Filed:
Nov. 20, 2020
Yokogawa Electric Corporation, Tokyo, JP;
Shin-ichirou Tezuka, Musashino, JP;
Masayoshi Honma, Musashino, JP;
Satoshi Matsuura, Musashino, JP;
Yokogawa Electric Corporation, Tokyo, JP;
Abstract
An optical fiber characteristic measurement device () includes a photodetector (A) which detects Brillouin scattered light (LS) obtained by causing light to be incident on an optical fiber (FUT), an intensity acquisitor (A) which acquires a signal intensity at a prescribed reference frequency (f, f) from a detection signal (S, S, S) output from the photodetector, and a measurer (A,B) which measures characteristics of the optical fiber by obtaining a peak frequency of a Brillouin gain spectrum, which is a spectrum of the Brillouin scattered light, from the signal intensity at the reference frequency acquired by the intensity acquisitor.