Multimode-Lichtleitfaser

Details

Veröffentlichungs-Nr.

EP2541292

Aktenzeichen

EP11305851

Anmeldetag

1. Juli 2011

Veröffentlichung

1. Oktober 2014

Erteilung

1. Oktober 2014

Rechtsraum

EP

IPC

G02B6/036G02B6/028

Abstract

It is proposed a multimode optical fibre comprising: - a core region with a first radius (R1) and a profile alpha with a maximum optical core index, - an inner depressed cladding extending radially from the first radius (R1) to a second radius (R2), - a trench extending from the second radius (R2) to a third radius (R3), - an outer depressed cladding extending radially from the third radius (R3) to a fourth radius (R4), - an external cladding extending radially from the fourth radius (R4), wherein: - the volume of the trench is comprised between 1650 x 10 -3 µm 2 and 4500 x 10 -3 µm 2 , - the difference in distance between the second radius (R2) and the first radius (R1) is comprised between 0.6 µm and 3.5 µm, - the fourth radius (R4) is comprised between 30 µm and 47 µm. The multimode fibre enables to reduce the down-doped cladding to be deposited without increasing the leakage losses of the modes.

Anmelder

Firma

Draka Comteq BV

Land

🇳🇱 Niederlande

Fachgebiete