Multikern-Glasfaser

Details

Veröffentlichungs-Nr.

EP3882675

Aktenzeichen

EP21162557

Anmeldetag

15. März 2021

Veröffentlichung

21. Januar 2026

Erteilung

21. Januar 2026

Rechtsraum

EP

IPC

G02B6/02G02B6/036G02B6/14

Abstract

An MCF according to the disclosure has a structure preventing deterioration in quality of optical transmission signals. The MCF comprises cores, a common cladding, and a coating. Any of the cores has a coating leakage loss of 0.01 dB/km or more at a wavelength within a wavelength range of from 850 nm to 1700 nm. The coating includes a leaked light propagation suppressive coating layer having a first optical property or a second optical property to light with a wavelength within a wavelength range of from 850 nm to 1700 nm or from 1260 nm to 1625 nm. The first optical property is defined by, as an attenuation index of the light, an absorbance per 1 µm thickness being 0.1 dB or more. The second optical property is defined by a product of absorbance per 1 µm thickness and a thickness being 0.1 dB or more.

Anmelder

Firma

SUMITOMO ELECTRIC INDUSTRIES, LTD.

Land

🇯🇵 Japan

Fachgebiete