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    • 1. 发明公开
    • Method for producing and processing a preform, preform and optical fiber
    • 一种用于生产和处理的预成型件,预成型件和光纤的方法
    • EP2226301A1
    • 2010-09-08
    • EP09153385.1
    • 2009-02-22
    • Silitec Fibers SA
    • Sandoz, FrédéricPedrido, CarlosRiboux, PhilippeHamel, Philippe
    • C03B37/012C03B37/027
    • C03B37/0122C03B37/01297C03B37/027C03B37/02781C03B2203/42C03B2205/07C03B2205/08C03B2205/74
    • The method for producing and processing a preform (1p, 1s) comprises a preliminary process phase, in which silica grain (5a; 5b) is supplied into the interior space (110) of a silica tube (11) having an open upper end and a closed lower end (111), in order to obtain an unprocessed preform (1p, 1s ), and comprises a final process phase, in which the interior space (110) of the silica tube (11) is closed, a condition of reduced pressure is generated, the unprocessed preform (1p, 1s ) is heated with a final process temperature in order to fuse the silica tube (11) and the silica grain (5b). According to the invention the silica grain (5a; 5b) entering the interior space (110) is thermally treated during the preliminary process phase with an intermediate process temperature that lies under the melting point of the silica grain.
    • 用于产生和处理的预成型件(1P,1S),所述方法包括初步处理阶段,其中的二氧化硅颗粒(5A; 5B)被供给到石英管(11)的内部空间(110),其具有开口的上端和 一个封闭的下端(111),以便获得关于未处理的预成型件(1P,1S),和包括一个最终处理阶段,其中,所述石英管(11)的内部空间(110)被关闭时,降低的条件 产生的压力,所述未处理预成型体(1P,1S)以熔化石英管(11)和二氧化硅颗粒(5b)中被加热以最终处理温度。 。根据本发明的二氧化硅颗粒(5A; 5B)进入所述内部空间(110)过程中与中间到工艺温度的预备阶段过程进行热处理并在二氧化硅颗粒的熔点下读取。
    • 8. 发明公开
    • Chalcogenide glass optical fibre
    • Optische Faser aus Halcogenidglas
    • EP0849234A3
    • 1998-09-30
    • EP98104164.3
    • 1996-03-06
    • HOYA CORPORATIONNIPPON SHEET GLASS CO. LTD.
    • Yoneda, YoshitakaMorimoto, ShozoYamashita, Toshiharu
    • C03C13/04
    • C03B37/02754C03B37/01245C03B37/027C03B2201/86C03B2205/08C03B2205/10C03B2205/14C03B2205/16C03C3/321C03C4/10C03C13/043C03C25/18Y02P40/57Y10S501/904Y10T428/2929
    • A process for producing a preform for a chalcogenide glass fiber which comprises inserting a cladding tube having contained therein a chalcogenide glass rod for core into a quartz tube having at its bottom a nozzle having an aperture smaller than the outer diameter of the cladding tube, locally heating the bottom of the quartz tube and pulling the cladding tube having contained the glass rod for core and a process for producing a chalcogenide glass fiber by heating and drawing the preform thus obtained, by which processes the devitrification of glass and the generation of bubbles in the core glass or at the core glass-cladding glass interface can be prevented and the adhesion between the core glass and the cladding glass can be improved. In particular, when the glass material for core does not contain Ge, a chalcogenide glass fiber having such a core-cladding structure that the transmission loss of the glass fiber when infrared light pass through the fiber is small and the mechanical strength is high.
    • 一种硫属化物玻璃纤维预成型体的制造方法,其特征在于,将包含核心的硫属化物玻璃棒的包覆管插入石英管,所述石英管的底部具有孔径小于包层管的外径的喷嘴, 加热石英管的底部并拉动预制件,通过所述石英管的喷嘴将所述包层管和芯的玻璃棒合成。 还公开了通过加热和拉伸所得到的预成型体来生产硫族化物玻璃纤维的方法,通过该方法可以防止玻璃的失透和芯玻璃或核心玻璃 - 包层玻璃界面中的气泡产生,并且 可以提高芯玻璃与包层玻璃之间的粘合性。 特别是,当核心用玻璃材料不含Ge时,具有这样的芯 - 包层结构的硫族化物玻璃纤维,当红外光通过纤维时,玻璃纤维的透射损失小,机械强度高。