Vorrichtung zur Messung der Charakteristik von Optischen Fasern und Verfahren zur Messung der Charakteristik von Optischen Fasern

Details

Veröffentlichungs-Nr.

EP4807338

Anmeldetag

6. März 2026

Veröffentlichung

16. September 2026

Rechtsraum

EP

IPC

G01M11/00

Abstract

An optical fiber characteristic measurement device includes a light detection unit, a superimposing unit, and a processing unit. The light detection unit is configured to detect Brillouin scattered light obtained by injecting light into an optical fiber under test and configured to output a detection signal. The superimposing unit is configured to superimpose a measurement signal modulated at a predetermined frequency and swept over a predetermined frequency range on light that enters the optical fiber under test, light used to detect the Brillouin scattered light, or the detection signal. The processing unit is configured to obtain a spectrum indicating an intensity or amplitude distribution of a frequency component that is n times (n is an integer of 1 or more) the predetermined frequency contained in the detection signal.

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Firmen

Yokogawa Electric Corporation
Toyota School Foundation

Land

🇯🇵 Japan

Fachgebiete