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1. 发明授权

EP2796420B1 A PCVD METHOD FOR MANUFACTURING A PRIMARY PREFORM FOR OPTICAL FIBRES 有权
标题翻译： PCVD法生产伯光纤预制棒
公开(公告)号：EP2796420B1
公开(公告)日：2017-03-22
申请号：EP14164529.1
申请日：2014-04-14
申请人： Draka Comteq B.V.
发明人： Milicevic, Igor , Van Stralen, Mattheus Jacobus Nicolaas , Hartsuiker, Johannes Antoon
IPC分类号： C03B37/018
CPC分类号： C03B37/0183 , C03B37/01807 , C03B37/01823 , C03B37/01869 , C03B2201/31 , C03B2207/28 , C03B2207/70 , C03B2207/80

2. 发明公开

EP1808419A4 PROCESS FOR PRODUCING OPTICAL FIBER PREFORM 审中-公开
标题翻译：制造方法的光纤预制件
公开(公告)号：EP1808419A4
公开(公告)日：2011-09-07
申请号：EP05795596
申请日：2005-10-20
申请人： SUMITOMO ELECTRIC INDUSTRIES
发明人： NAKANISHI T , HIRANO M
IPC分类号： C03B37/018
CPC分类号： C03B37/01823 , C03B2207/66 , Y02P40/57
摘要： The present invention provides a method for producing an optical fiber preform, in which method it is possible to synthesize and deposit glass at a high rate by the inside CVD method using a plasma burner as a heat source in a manner such that unconsolidated portions or bubbles are little generated in the optical fiber preform. The method includes a step of depositing a glass film on the inner wall surface of a starting pipe, the wall thickness of which is d (mm), by heating from the outer circumferential surface of the pipe while a gas containing a glass raw material is introduced into the pipe, the plasma burner being moved in parallel with the axis of the pipe, wherein in a first embodiment, the temperature is controlled not to exceed (1800 + 100×d)°C, a temperature of (1100 + 100×d)°C or higher being continued for 20 seconds or more at each point of the starting pipe. In a second embodiment of the invention, the plasma burner includes at least two inlets for gases for forming plasma and has an inner diameter of 80 mm or more (sectional area S) in a region where the plasma is formed, and the deposition step is performed in a manner to satisfy the relationship, 150 mm/second

3. 发明公开

EP1997783A3 A method of manufacturing an optical fiber preform using a high frequency induction thermal plasma 有权
标题翻译：一种生产具有高频感应热等离子体的光纤预制件过程
公开(公告)号：EP1997783A3
公开(公告)日：2011-03-30
申请号：EP08009750.4
申请日：2008-05-28
申请人： Shin-Etsu Chemical Co., Ltd.
发明人： Otosaka, Tetsuya
IPC分类号： C03B37/014 , C03B37/018
CPC分类号： C03B37/01823 , C03B37/01413 , C03B37/01426 , C03B2201/12 , C03B2207/80 , C03B2207/87 , Y02P40/57
摘要： When manufacturing an optical fiber preform by feeding at least glass raw material, dopant material and oxygen gas to a high frequency induction thermal plasma torch to synthesize glass particles in plasma therein, a glass rod (6) is rotated and reciprocated relative to the plasma torch (1) to deposit the synthesized glass particles onto the glass rod (6). The fluctuation of the relative refractive-index difference in the longitudinal direction of the optical fiber preform is suppressed and the average value of the relative refractive-index difference in the longitudinal direction is enhanced. The glass raw material is fed to the plasma torch (1) in a forward direction of the reciprocating motion of the glass rod, and a feeding amount of the glass raw material in the backward direction of the reciprocating motion is reduced relative to the feeding amount in the forward direction.

4. 发明公开

EP1454889A1 Glass-processing method and glass-processing apparatus for the method 审中-公开
标题翻译： Verfahren zur Verarbeitung von Glas sowie Vorrichtung zu dessenAusführung
公开(公告)号：EP1454889A1
公开(公告)日：2004-09-08
申请号：EP04004489.3
申请日：2004-02-27
申请人： SUMITOMO ELECTRIC INDUSTRIES, Ltd
发明人： Onishi, Masashi Sumimoto Electric Industries, Ltd. , Hirano, Masaaki Sumimoto Electric Industries, Ltd. , Nakanishi, Tetsuya Sumimoto Elect. Industries, Ltd
IPC分类号： C03B37/018
CPC分类号： H05H1/30 , C03B23/043 , C03B23/207 , C03B29/02 , C03B37/0124 , C03B37/01815 , C03B37/01823 , Y02P40/57
摘要： A glass-processing method adjusts the range of the heating region according to the work piece and processing condition, and a glass-processing apparatus implements the method. The method incorporates the heating of a glass body (G) with a thermal plasma torch (10) comprising (a) a main body provided with a plurality of ports (P1,P2,P3) from which a gas issues and (b) a device (8) for applying a high-frequency electric field to the gas fed into the main body. The method comprises the steps of (1) adjusting the plasma flame's size perpendicular to the center axis of the main body by controlling the flow rate of the gas fed into each port according to the size of the glass body, the processing condition, or both and (2) heating the glass body. The apparatus comprises (a) a thermal plasma torch (10) for heating a glass body, comprising (a1) a main body provided with a plurality of ports (P1,P2,P3) from which a gas issues and (a2) a device (8) for applying a high-frequency electric field to the gas fed into the main body and (b) a device (31,32) for adjusting the flow rate of the gas fed into each port.
摘要翻译：玻璃加工方法根据工件和加工条件调节加热区域的范围，玻璃加工装置实施该方法。该方法包括用热等离子体焰炬（10）加热玻璃体（G），所述热等离子体焰炬（10）包括：（a）主体，其设有多个气体发生的端口（P1，P2，P3），（b）用于将高频电场施加到供给到主体中的气体的装置（8）。该方法包括以下步骤：（1）通过根据玻璃体的尺寸，加工条件或两者来控制进入每个端口的气体的流量来调节垂直于主体的中心轴的等离子体火焰的尺寸和（2）加热玻璃体。该装置包括：（a）用于加热玻璃体的热等离子体焰炬（10），包括（a1）设置有气体发生的多个端口（P1，P2，P3）的主体，（a2）（8），用于对供给到主体的气体施加高频电场;（b）用于调节供给到每个端口的气体的流量的装置（31,32）。

5. 发明公开

EP0541752A1 PROCEDE DE FABRICATION D'UNE FIBRE OPTIQUE ET FIBRE OPTIQUE REALISEE SELON CE PROCEDE 失效
标题翻译：一种用于通过这种方法来生产的光纤和光纤的过程。
公开(公告)号：EP0541752A1
公开(公告)日：1993-05-19
申请号：EP92910829.0
申请日：1992-06-04
申请人： CABLOPTIC S.A.
发明人： SANDOZ, Frédéric , BERTHOU, Hervé
IPC分类号： C03B37
CPC分类号： C03B37/01426 , C03B37/01823 , C03B37/027 , C03B2201/42
摘要： Ce procédé de fabrication d'une fibre optique traitée au dioxyde de titane pour améliorer sa résistance à la corrosion consiste à étirer un ensemble constitué d'un tube de manchonnage extérieur dans lequel on a engagé un barreau partiellement ou entièrement en silice synthétique. Pour que cette fibre soit traitée, on recouvre, antérieurement à l'assemblage de ces composants, l'extérieur du tube de manchonnage au moyen d'un dépôt de silice synthétique vitrifiée contenant du dioxyde de titane.

6. 发明公开

EP2796420A1 a PCVD method for manufacturing a primary preform for optical fibers 有权
标题翻译： PCVD-VERFAHREN ZUR HERSTELLUNG EINERPRIMÄRENVORFORMFÜROPTISCHE FASERN
公开(公告)号：EP2796420A1
公开(公告)日：2014-10-29
申请号：EP14164529.1
申请日：2014-04-14
申请人： Draka Comteq B.V.
发明人： Milicevic, Igor , Van Stralen, Mattheus Jacobus Nicolaas , Hartsuiker, Johannes Antoon
IPC分类号： C03B37/018
CPC分类号： C03B37/0183 , C03B37/01807 , C03B37/01823 , C03B37/01869 , C03B2201/31 , C03B2207/28 , C03B2207/70 , C03B2207/80
摘要： A method for manufacturing a primary preform for optical fibres by means of an internal plasma chemical vapour deposition (PCVD) process, which method comprises the steps of: providing a hollow glass substrate tube having a supply side and a discharge side; supplying a gas flow in the interior of said hollow substrate tube via the supply side thereof, said gas flow comprising a main gas flow comprising at least one glass-forming gas and at least one secondary gas flow comprising at least one dopant; creating a plasma reaction zone in the interior of said hollow substrate tube by means of microwave radiation for effecting the deposition of glass layers on the inner surface of said hollow substrate tube, said reaction zone being moved back and forth along the longitudinal axis of said hollow substrate tube between a reversal point located near the supply side and a reversal point located near the discharge side of said hollow substrate tube, to obtain a substrate tube having glass layers deposited on its inner surface; and optionally subjecting the substrate tube having glass layers deposited on its inner surface obtained in step iii) to a collapsing treatment so as to form a solid primary preform, wherein the supply of the at least one secondary gas flow is interrupted during step iii) when the plasma reaction zone is located near or at the reversal point located near the supply side and/or the reversal point located near the discharge side.
摘要翻译：一种通过内部等离子体化学气相沉积（PCVD）工艺制造用于光纤的初级预制件的方法，该方法包括以下步骤：提供具有供给侧和排出侧的中空玻璃基板管; 在所述中空衬底管的内部经由其供应侧供应气流，所述气流包括包含至少一种玻璃形成气体的主气流和至少一种包含至少一种掺杂剂的二次气流; 通过微波辐射在所述中空衬底管的内部产生等离子体反应区，以实现玻璃层在所述中空衬底管的内表面上的沉积，所述反应区沿所述空心衬套的纵向轴线前后移动在位于供给侧附近的反转点和位于所述中空基板管的排出侧附近的反转点之间的基板管，以获得在其内表面上沉积有玻璃层的基板管; 并且可选地使具有沉积在其在步骤iii）中获得的内表面上的玻璃层的基底管经历塌陷处理，以形成固体初级预制件，其中在步骤iii）期间中断所述至少一个二次气流的供应等离子体反应区位于位于靠近排出侧的供给侧和/或反转点附近或位于反转点附近。

7. 发明授权

EP1988065B1 Apparatus for carrying out plasma chemical vapour deposition and method of manufacturing an optical preform 有权
标题翻译：用于制造光学预型件用于执行等离子体化学气相沉积的方法，和方法
公开(公告)号：EP1988065B1
公开(公告)日：2011-11-02
申请号：EP08007993.2
申请日：2008-04-25
申请人： Draka Comteq B.V.
发明人： Van Stralen, Mattheus Jacobus Nicolaas , Milicevic, Igor , Hartsuiker, Johannes Antoon
IPC分类号： C03B37/018
CPC分类号： C03B37/01823 , C03B2201/12 , C03B2201/31

8. 发明公开

EP1086053A1 METHOD OF MAKING AN OPTICAL FIBER PREFORM 审中-公开
标题翻译：制造用于光纤的预制件
公开(公告)号：EP1086053A1
公开(公告)日：2001-03-28
申请号：EP99916592.1
申请日：1999-04-09
申请人： FIBERCORE, INC.
发明人： GOUSKOV, Mikhail Ivanovich , DANILOV, Evgueni Borisovich , ASLAMI, Mohammad, Afzal , WU, Dau , MATTISON, John, Edward
IPC分类号： C03B23/047 , C03B37/027
CPC分类号： C03B37/01861 , C03B37/01413 , C03B37/01426 , C03B37/01466 , C03B37/01823 , C03B2201/02 , C03B2201/12 , C03B2201/28 , C03B2201/31 , C03B2201/32 , C03B2201/42 , C03B2203/22
摘要： Glass soot (130) is deposited on a glass rod by a burner (140). The body is stretched (126). More depositing and stretching is effected. The final body is then drawn into a fiber.

9. 发明公开

EP0656326A2 Method for making optical fiber preforms 失效
标题翻译：制造光纤预制棒的方法
公开(公告)号：EP0656326A2
公开(公告)日：1995-06-07
申请号：EP94308648.8
申请日：1994-11-23
申请人： AT&T Corp.
发明人： Partus, Fred Paul , Thomas, Gordon Albert
IPC分类号： C03B37/018 , C03B37/014
CPC分类号： C03B37/01861 , C03B37/01815 , C03B37/01823 , C03B37/01869
摘要： A method for making a glass preform substantially free of OH impurities is disclosed. The method comprises the steps of introducing a moving stream of a vapor mixture including at least one compound glass-forming precursor together with an oxidizing medium into a tube, while generating a hydrogen-free isothermal plasma on an outer surface of the tube to react the mixture and produce a glassy deposit on an inner surface of the tube.
摘要翻译：公开了一种制造基本上不含OH杂质的玻璃预制件的方法。该方法包括以下步骤：将包含至少一种化合物玻璃形成前体的蒸气混合物的移动流与氧化性介质一起引入管中，同时在管的外表面上产生无氢等温等离子体以使混合物并在管的内表面上产生玻璃状沉积物。

10. 发明授权

EP1808419B1 PROCESS FOR PRODUCING OPTICAL FIBER PREFORM 有权
公开(公告)号：EP1808419B1
公开(公告)日：2018-10-03
申请号：EP05795596.5
申请日：2005-10-20
申请人： Sumitomo Electric Industries, Ltd.
发明人： NAKANISHI,T.,Yokohama Works Sumitomo El. Ind. Ltd. , HIRANO,M.,Yokohama Works Sumitomo El. Ind. Ltd.
IPC分类号： C03B37/018
CPC分类号： C03B37/01823 , C03B2207/66 , Y02P40/57
摘要： The present invention provides a method for producing an optical fiber preform, in which method it is possible to synthesize and deposit glass at a high rate by the inside CVD method using a plasma burner as a heat source in a manner such that unconsolidated portions or bubbles are little generated in the optical fiber preform. The method includes a step of depositing a glass film on the inner wall surface of a starting pipe, the wall thickness of which is d (mm), by heating from the outer circumferential surface of the pipe while a gas containing a glass raw material is introduced into the pipe, the plasma burner being moved in parallel with the axis of the pipe, wherein in a first embodiment, the temperature is controlled not to exceed (1800 + 100×d)°C, a temperature of (1100 + 100×d)°C or higher being continued for 20 seconds or more at each point of the starting pipe. In a second embodiment of the invention, the plasma burner includes at least two inlets for gases for forming plasma and has an inner diameter of 80 mm or more (sectional area S) in a region where the plasma is formed, and the deposition step is performed in a manner to satisfy the relationship, 150 mm/second

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