公开(公告)号：US20210184418A1

公开(公告)日：2021-06-17

申请号：US16079920

申请日：2016-02-26

Applicant: CORACTIVE HIGH-TECH INC.

Inventor： Bertrand MORASSE ,  Yann VASSEUR ,  David FORTIN-MAGNAN

IPC: H01S3/067 ,  H01S3/16

Abstract: A method of manufacturing an optical fiber is provided. The method involves providing a fiber preform with an active core and a pump-guiding cladding, and assembling one or more side rods to the fiber preform. The side rods extend longitudinally along an outer surface of the pump-guiding cladding. The resulting fiber preform assembly is drawn into the optical fiber. Each side rod defines a longitudinal protrusion extending along the optical fiber. Each longitudinal protrusion may have a cross-section forming a middle bump projecting radially away from the outer surface of the pump-guiding cladding and smooth transition regions with this outer surface of the pump-guiding cladding on opposite sides of the middle bump.