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1. 发明申请

US20220234936A1 METHODS FOR PRODUCING A HOLLOW-CORE FIBER AND FOR PRODUCING A PREFORM FOR A HOLLOW-CORE FIBER 有权
公开(公告)号：US20220234936A1
公开(公告)日：2022-07-28
申请号：US17617487
申请日：2020-07-15
申请人： HERAEUS QUARZGLAS GMBH & CO. KG
发明人： Manuel Rosenberger , Ralph Sattmann , Achim Hofmann , Michael Hünermann , Kay Schuster
IPC分类号： C03B37/027 , C03B37/012 , G02B6/02
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 in that the step of providing and/or arranging the anti-resonant element preforms and/or the process of carrying out a hot-forming process includes a fixation measure and/or a sealing measure using an amorphous SiO2 particle-containing sealing or joining compound.

2. 发明申请

US20220227658A1 METHODS FOR PRODUCING A HOLLOW-CORE FIBER AND FOR PRODUCING A PREFORM FOR A HOLLOW-CORE FIBER 有权
公开(公告)号：US20220227658A1
公开(公告)日：2022-07-21
申请号：US17617220
申请日：2020-07-15
申请人： HERAEUS QUARZGLAS GMBH & CO. KG
发明人： Manuel Rosenberger , Ralph Sattmann
IPC分类号： C03B37/027 , C03B37/012 , G02B6/02
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 in that the step of providing the cladding tube includes a processing measure, in which the cladding tube wall is machined with a longitudinal structure extending in the direction of the cladding tube longitudinal axis in the region of the target positions.

3. 发明授权

US10118854B2 Tubular semifinished product for producing an optical fiber 有权
公开(公告)号：US10118854B2
公开(公告)日：2018-11-06
申请号：US14711000
申请日：2015-05-13
申请人： Heraeus Quarzglas GmbH & Co. KG
发明人： Ralph Sattmann , Jan Vydra , Michael Huenermann
IPC分类号： C03B37/012 , C03B37/027 , C03C13/04 , G02B6/036 , C03B37/018
摘要： Methods for producing an optical fiber by elongating a silica glass blank or a coaxial group of silica glass components, on the basis of which a fiber is obtained that comprises a core zone, an inner jacket zone enclosing the core zone and a ring zone surrounding the inner jacket zone, are known. In order to provide, proceeding from this, a method, a tubular semi-finished product and a group of coaxial components for the cost-effective production of an optical fiber, which is characterized by a high quality of the boundary between the core and jacket and by low bending sensitivity, according to the invention, the silica glass of the ring zone is provided in the form of a ring zone tube made of silica glass having a mean fluorine content of at least 6000 weight ppm and the tube has an inner tube surface and an outer tube surface, wherein via the wall of the ring zone tube, a radial fluorine concentration profile is adjusted which has an inner fluorine depletion layer with a layer thickness of at least 1 μm and no more than 10 μm, in which the fluorine content decreases toward the inner tube surface and is no more than 3000 weight ppm in a region close to the surface which has a thickness of 1 μm.

4. 发明申请

US20220356108A1 METHODS FOR PRODUCING A HOLLOW-CORE FIBER AND FOR PRODUCING A PREFORM FOR A HOLLOW-CORE FIBER 有权
公开(公告)号：US20220356108A1
公开(公告)日：2022-11-10
申请号：US17621607
申请日：2020-07-15
申请人： HERAEUS QUARZGLAS GMBH & CO. KG
发明人： Manuel Rosenberger , Enrico Ehrentraut , Benjamin Reis , Yusuf Tansel , David Kostka , Ralph Sattmann , Jan Vydra
IPC分类号： C03B37/027 , C03B37/012
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 in that a positioning template is inserted into the cladding tube inner bore in order to arrange the anti-resonant element preforms, said template having holding elements for positioning the anti-resonant element preforms at the target positions.

5. 发明申请

US20150299024A1 TUBULAR SEMIFINISHED PRODUCT FOR PRODUCING AN OPTICAL FIBER 审中-公开
标题翻译：用于生产光纤的管状半透明产品
公开(公告)号：US20150299024A1
公开(公告)日：2015-10-22
申请号：US14711000
申请日：2015-05-13
申请人： Heraeus Quarzglas GmbH & Co. KG
发明人： Ralph Sattmann , Jan Vydra , Michael Huenermann
IPC分类号： C03B37/027 , G02B6/036 , C03B37/018
CPC分类号： C03B37/02754 , C03B37/01211 , C03B37/01228 , C03B37/01242 , C03B37/018 , C03B37/027 , C03B2201/075 , C03B2201/12 , C03B2201/20 , C03B2201/30 , C03B2201/31 , C03B2203/22 , C03B2203/23 , C03B2205/30 , C03C13/045 , C03C2201/12 , G02B6/03633 , G02B6/0365 , Y10T428/2935
摘要： Methods for producing an optical fiber by elongating a silica glass blank or a coaxial group of silica glass components, on the basis of which a fiber is obtained that comprises a core zone, an inner jacket zone enclosing the core zone and a ring zone surrounding the inner jacket zone, are known. In order to provide, proceeding from this, a method, a tubular semi-finished product and a group of coaxial components for the cost-effective production of an optical fiber, which is characterized by a high quality of the boundary between the core and jacket and by low bending sensitivity, according to the invention, the silica glass of the ring zone is provided in the form of a ring zone tube made of silica glass having a mean fluorine content of at least 6000 weight ppm and the tube has an inner tube surface and an outer tube surface, wherein via the wall of the ring zone tube, a radial fluorine concentration profile is adjusted which has an inner fluorine depletion layer with a layer thickness of at least 1 μm and no more than 10 μm, in which the fluorine content decreases toward the inner tube surface and is no more than 3000 weight ppm in a region close to the surface which has a thickness of 1 μm.
摘要翻译：通过使二氧化硅玻璃坯料或同轴的二氧化硅玻璃成分体组织进行拉伸来制造光纤的方法，基于该光纤获得包含芯部区域的纤维，包围芯部区域的内部护套区域和围绕该区域的环形区域内护套区域，已知。为了提供一种用于成本有效地生产光纤的方法，管状半成品和一组同轴部件，其特征在于芯和夹套之间的边界质量高并且通过低弯曲灵敏度，根据本发明，环区的石英玻璃以平均氟含量为至少6000重量ppm的石英玻璃制成的环形管的形式提供，并且管具有内管表面和外管表面，其中通过环带管的壁，调节径向氟浓度分布，其具有层厚度为至少1μm且不大于10μm的内氟耗尽层，其中氟含量向内管表面减少，并且在接近表面厚度为1μm的区域中不超过3000重量ppm。

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