Herstellungsverfahren für eine Glasfaservorform

Details

Veröffentlichungs-Nr.

EP2426533

Aktenzeichen

EP11180048

Anmeldetag

5. September 2011

Veröffentlichung

10. Juni 2015

Erteilung

10. Juni 2015

Rechtsraum

EP

IPC

C03B37/014G02B6/028G02B6/036

Abstract

An optical fiber capable of suppressing an increase of a transmission loss after exposure of the optical fiber to hydrogen or deuterium is provided. The optical fiber has a core region (1), an inner cladding region (2) surrounding the core region, a trench region (3) surrounding the inner cladding region, an outer cladding region (4) surrounding the trench region, and a refractive index varying region arranged between the inner cladding region and the trench region, the refractive index varying region (10) having a refractive index gradually increasing from the trench region to the inner cladding region.

Anmelder

Firma

Shin-Etsu Chemical Co., Ltd.

Land

🇯🇵 Japan

Fachgebiete