公开(公告)号：US20240150218A1

公开(公告)日：2024-05-09

申请号：US18387631

申请日：2023-11-07

Applicant: CORNING INCORPORATED

Inventor： Paulo Clovis Dainese, JR. ,  Matthew Ryan Drake ,  Richard Michael Fiacco ,  Brian Lee Harper ,  Ming-Jun Li ,  Silver Nyambo ,  Matthew John Rice ,  Jeffery Scott Stone ,  Matthew Artus Tuggle

IPC: C03B37/027 ,  C03B37/012 ,  C03B37/018

CPC classification number: C03B37/02718 ,  C03B37/01214 ,  C03B37/01876 ,  C03B2203/16

Abstract: A method of manufacturing a preform, 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, forming a preform from the preform precursor, and thermally treating at least one of the preform precursor and the preform. The thermally treating including sealing the first open end and the second open end of the glass tube to form a closed tube and heating and/or cooling the glass tube to manipulate gas pressure within the closed glass tube.

公开(公告)号：US20240036249A1

公开(公告)日：2024-02-01

申请号：US18225947

申请日：2023-07-25

Applicant: CORNING INCORPORATED

Inventor： Matthew Ryan Drake ,  Richard Michael Fiacco ,  Sushmit Sunil Kumar Goyal ,  Brian Lee Harper ,  Ming-Jun Li ,  Matthew John Rice ,  Matthew Artus Tuggle

IPC: G02B6/02 ,  G02B6/032 ,  C03B37/027

CPC classification number: G02B6/02328 ,  G02B6/032 ,  C03B37/02781 ,  C03B2203/16

Abstract: The present disclosure is directed to various embodiments of methods for making an optical fiber. The methods may include drawing an optical fiber from a hollow-core preform. The hollow-core preform may include an annular support structure with an inner surface defining an interior cavity. The interior cavity may include a tube in direct contact with the inner surface of the annular support structure. The tube may include a wall defining an internal opening, the internal opening having a sealed end. The drawing may include regulating a pressure of the internal cavity to a predetermined pressure.