- 专利标题: METHODS FOR PRODUCING A HOLLOW-CORE FIBER AND FOR PRODUCING A PREFORM FOR A HOLLOW-CORE FIBER
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申请号: US17625952申请日: 2020-07-15
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公开(公告)号: US20220242773A1公开(公告)日: 2022-08-04
- 发明人: Manuel Rosenberger , Michael Hünermann , Martin Trommer , Kay Schuster , Steffen Weimann , Oliver Ganz
- 申请人: HERAEUS QUARZGLAS GMBH & CO. KG
- 申请人地址: DE Hanau
- 专利权人: HERAEUS QUARZGLAS GMBH & CO. KG
- 当前专利权人: HERAEUS QUARZGLAS GMBH & CO. KG
- 当前专利权人地址: DE Hanau
- 优先权: EP19186858.7 20190717
- 国际申请: PCT/EP2020/070016 WO 20200715
- 主分类号: C03B37/012
- IPC分类号: C03B37/012 ; C03B37/027
摘要:
Methods are known for producing an anti-resonant hollow-core fiber which has a hollow core extending along a fiber longitudinal axis and an inner jacket region that surrounds the hollow core, said jacket region comprising multiple anti-resonant elements. The known methods have the steps of: providing a cladding tube that has a cladding tube inner bore and a cladding tube longitudinal axis along which a cladding tube wall extends that is delimited by an interior and an exterior; providing a number of tubular anti-resonant element preforms; arranging the anti-resonant element preforms at target positions of the interior of the cladding tube wall, thereby forming a primary preform which has a hollow core region and an inner jacket region; and elongating the primary preform in order to form the hollow-core fiber or further processing the primary preform in order to form a secondary preform. The aim of the invention is to achieve a high degree of precision and an exact positioning of the anti-resonant elements in a sufficiently stable and reproducible manner on the basis of the aforementioned methods. This is achieved by providing anti-resonant element preforms which have at least one respective ARE outer tube and/or at least one respective ARE inner tube, wherein the ARE outer tube and/or the ARE inner tube is produced using a vertical drawing method without molding tools.
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