CLEANING STEP TO REMOVE METALS OR METAL OXIDES FROM POROUS GLASS BODY

    公开(公告)号:US20240360024A1

    公开(公告)日:2024-10-31

    申请号:US18637553

    申请日:2024-04-17

    IPC分类号: C03B37/018 C03B37/03

    摘要: A method of manufacturing including: (a) a first vapor deposition step comprising vapor depositing a first porous glass body of a glass former and a doping constituent onto a substrate; (b) a cleaning step after the first vapor deposition step, the cleaning step comprising exposing the first porous glass body to a cleaning gas at a cleaning temperature for a cleaning period of time, the cleaning gas (i) removing a metal or metal oxide from the first porous glass body, (ii) changing an oxidation state of a metal or metal oxide within the first porous glass body, or (iii) a combination of (i) and (ii); and (c) a second vapor deposition step after the cleaning step, the second vapor deposition step comprising vapor depositing a second porous glass body of the glass former onto the first porous glass body resulting in a porous preform for an optical fiber.