公开(公告)号：US20240150219A1

公开(公告)日：2024-05-09

申请号：US18387646

申请日：2023-11-07

Applicant: CORNING INCORPORATED

Inventor： Paulo Clovis Dainese, Jr. ,  Sushmit Sunil Kumar Goyal ,  Kam Chuen Ng ,  Matthew Artus Tuggle

IPC: C03B37/027 ,  C03B37/012

CPC classification number: C03B37/02718 ,  C03B37/01214 ,  C03B2203/16

Abstract: A method of manufacturing a hollow core optical fiber, the method including positioning at least one glass tube in a glass outer cladding to form a preform precursor, the glass tube comprising a first open end and a second open end, and forming a preform from the preform precursor. The method further including drawing the preform into a hollow core optical fiber and, while drawing the preform, thermally treating the preform to manipulate gas pressure within the glass tube by at least one of (i) heating at least a portion of the preform to increase gas pressure within the glass tube and (ii) cooling at least a portion of the preform to decrease gas pressure within the glass tube.