公开(公告)号：US07716952B2

公开(公告)日：2010-05-18

申请号：US10552539

申请日：2004-04-06

申请人： Gerhard Schötz ,  Karsten Bräuer ,  Heinz Fabian ,  Norbert Treber

发明人： Gerhard Schötz ,  Karsten Bräuer ,  Heinz Fabian ,  Norbert Treber

IPC分类号： C03B37/075 ,  C03B37/07 ,  C03B37/018 ,  C03C13/00 ,  C03C25/00 ,  G02B6/00 ,  G01N23/00

CPC分类号： C03B37/01291 ,  C03B37/01211 ,  C03B37/01426 ,  C03B37/01466 ,  C03B2201/12 ,  Y02P40/57

摘要： In a known method for the production of a blank mold for optical fibers, a fluorine-doped SiO2 enveloping glass is produced on a core glass cylinder that rotates about its longitudinal axis, wherein a silicon-containing starting substance is fed to a plasma burner, said substance is then oxidized in a plasma flame assigned to the plasma burner to obtain SiO2 particles, the SiO2 particles are deposited by layers on the enveloping surface of the cylinder of the core glass cylinder in the presence of fluorine and sintered into the enveloping glass. The invention aims at providing an economical method, which builds upon the above-mentioned method, in order to produce a blank mold from which optical multi-mode fibers (52) can be obtained. In comparison with fibers (51) produced according to standard methods, said optical multi-mode fibers are characterized by high initial transmission in the UV wavelength range and good resistance with respect to brief UV radiation, more particularly in the 210-300 nm wavelength range. According to the invention, a plasma flame that irradiates an ultraviolet light having a wavelength of 214 nm with an intensity of at least 0.9 ?W—determined on the basis of plasma flame intensity measurement—is used for the formation and deposition of the SiO2 particles on the core glass.

摘要翻译： 在用于生产光纤空白模具的已知方法中，在围绕其纵向轴线旋转的芯玻璃圆筒上产生氟掺杂的SiO 2包封玻璃，其中含硅原料被供给到等离子体燃烧器， 然后将所述物质在分配给等离子体燃烧器的等离子体火焰中氧化以获得SiO 2颗粒，SiO 2颗粒在氟存在下通过层沉积在芯玻璃圆筒的圆筒的包络表面上并烧结到包封玻璃中。 本发明的目的在于提供一种以上述方法为基础的经济的方法，以便制造可得到光学多模光纤（52）的坯模。 与根据标准方法生产的纤维（51）相比，所述光学多模光纤的特征在于在UV波长范围内的初始透射率高，并且对于短暂的UV辐射具有良好的电阻，更特别地在210-300nm波长范围 。 根据本发明，使用基于等离子体火焰强度测量来测定波长为214nm的强度至少为0.9≤W的紫外光的等离子体火焰，用于SiO 2颗粒的形成和沉积 在核心玻璃上。

公开(公告)号：US20090053427A1

公开(公告)日：2009-02-26

申请号：US11885745

申请日：2006-02-15

申请人： Monika Oswald ,  Jurgen Meyer ,  Klaus Deller

发明人： Monika Oswald ,  Jurgen Meyer ,  Klaus Deller

IPC分类号： B05D5/06 ,  B29D11/00 ,  B05D3/08

CPC分类号： C03B37/01291 ,  C03B19/01 ,  C03B19/102 ,  C03B19/106 ,  C03B2201/07 ,  C03B2201/12

摘要： Glass is produced by depositing presintering composition on a preform set into move in front of a plasma torch which moves back and forth substantially parallel to a longitudinal direction of the preform, a first feed duct feeds the plasma with grains of the presintering composition while optionally a second feed duct feeds the plasma with a fluorine or chlorine compound, preferably a fluorine compound, mixed with a carrier gas, whereby the presintering composition consists of granules of metal oxides or metalloid oxides of a pyrogenic silicon dioxide powder with a BET surface area of 30 to 90 m2/g, a DBP index of 80 or less, a mean aggregate area of less than 25000 nm2 and a mean aggregate circumference of less than 1000 nm, wherein at least 70% of the aggregates have a circumference of less than 1300 nm or a high-purity pyrogenically prepared silicon dioxide having metal contents of less than 0.2 μg/g, which is prepared by reacting a silicon tetrachloride having a metal content of less than 30 ppb by means of flame hydrolysis.

摘要翻译： 玻璃是通过将预烧结组合物沉积在等离子体焰炬之前移动的预成型体上制造的，所述等离子体焰炬基本上平行于预成型件的纵向方向前后移动，第一进料管将预烧结组合物的颗粒进料到等离子体， 第二进料管将等离子体与载体气体混合的氟或氯化合物，优选氟化合物进料，其中预烧结组合物由BET表面积为30的热解二氧化硅粉末的金属氧化物或准金属氧化物颗粒组成 至90m 2 / g，DBP指数为80以下，平均聚集面积小于25000nm 2，平均聚集体周长小于1000nm，其中至少70％的聚集体具有小于1300nm的圆周 或金属含量小于0.2mug / g的高纯度热解法制备的二氧化硅，其通过使金属含量为1的四氯化硅 通过火焰水解30埃以上。

公开(公告)号：US20070295033A1

公开(公告)日：2007-12-27

申请号：US11769092

申请日：2007-06-27

申请人： Cedric Gonnet ,  Laurent Calvo ,  Emmanuel Petitfrere

发明人： Cedric Gonnet ,  Laurent Calvo ,  Emmanuel Petitfrere

IPC分类号： C03C25/00 ,  B23K9/00

CPC分类号： H05H1/30 ,  C03B37/01291 ,  Y02P40/57

摘要： Disclosed is a plasma torch for overcladding a primary preform of an optical fiber. The plasma torch includes a confinement tube for confining an induced plasma and a torch base. The torch base has a ceramic surface internal to the confinement tube. The plasma torch has extended life even at high input powers.

摘要翻译： 公开了用于包覆光纤初级预制件的等离子体焰炬。 等离子体焰炬包括用于限制诱导等离子体和焊炬底座的限制管。 割炬底座内部有一个陶瓷表面。 即使在高输入功率下，等离子体焰炬也延长了使用寿命。

公开(公告)号：US20060213228A1

公开(公告)日：2006-09-28

申请号：US10552539

申请日：2004-04-06

申请人： Gerhard Schotz ,  Karsten Brauer ,  Michael Hunermann ,  Richard Schmidt ,  Heinz Fabian ,  Norbert Treber

发明人： Gerhard Schotz ,  Karsten Brauer ,  Michael Hunermann ,  Richard Schmidt ,  Heinz Fabian ,  Norbert Treber

IPC分类号： C03B37/07 ,  C03B37/018

CPC分类号： C03B37/01291 ,  C03B37/01211 ,  C03B37/01426 ,  C03B37/01466 ,  C03B2201/12 ,  Y02P40/57

摘要： In a known method for the production of a blank mold for optical fibers, a fluorine-doped SiO2 enveloping glass is produced on a core glass cylinder that rotates about its longitudinal axis, wherein a silicon-containing starting substance is fed to a plasma burner, said substance is then oxidized in a plasma flame assigned to the plasma burner to obtain SiO2 particles, the SiO2 particles are deposited by layers on the enveloping surface of the cylinder of the core glass cylinder in the presence of fluorine and sintered into the enveloping glass. The invention aims at providing an economical method, which builds upon the above-mentioned method, in order to produce a blank mold from which optical multi-mode fibers (52) can be obtained. In comparison with fibers (51) produced according to standard methods, said optical multi-mode fibers are characterized by high initial transmission in the UV wavelength range and good resistance with respect to brief UV radiation, more particularly in the 210-300 nm wavelength range. According to the invention, a plasma flame that irradiates an ultraviolet light having a wavelength of 214 nm with an intensity of at least 0.9 ?W—determined on the basis of plasma flame intensity measurement—is used for the formation and deposition of the SiO2 particles on the core glass.

摘要翻译： 在用于生产光纤空白模具的已知方法中，在围绕其纵向轴线旋转的芯玻璃圆筒上产生氟掺杂的SiO 2包封玻璃，其中含硅起始 将物质进料到等离子体燃烧器，然后将所述物质在分配给等离子体燃烧器的等离子体火焰中氧化以获得SiO 2颗粒，SiO 2颗粒通过层 在氟化物存在下在芯玻璃圆筒的圆筒的包络表面上，并烧结到包络玻璃中。 本发明的目的在于提供一种以上述方法为基础的经济的方法，以便制造可得到光学多模光纤（52）的坯模。 与根据标准方法生产的纤维（51）相比，所述光学多模光纤的特征在于在UV波长范围内的初始透射率高，并且对于短暂的UV辐射具有良好的电阻，更特别地在210-300nm波长范围 。 根据本发明，使用基于等离子体火焰强度测量来测量具有至少0.9≤W的强度的波长为214nm的紫外光的等离子体火焰，用于形成和沉积SiO 2， 核心玻璃上的SUB> 2 颗粒。

公开(公告)号：US20060179893A1

公开(公告)日：2006-08-17

申请号：US11397688

申请日：2006-04-05

申请人： Jacques Jolly ,  Virginie Herchuelz ,  Remi Fauche ,  Eric Tutin ,  Jean-Florent Campion

发明人： Jacques Jolly ,  Virginie Herchuelz ,  Remi Fauche ,  Eric Tutin ,  Jean-Florent Campion

IPC分类号： C03C25/00

CPC分类号： C03B37/01291

摘要： The present invention provides an installation for fabricating or overcladding an optical fiber preform, which installation includes an inductive torch for producing a plasma from a plasma generating gas and material feed means and is characterized in that said plasma generating gas is a mixture of a first gas chosen from diatomic gases and mixtures of at least two gases and argon in a proportion by volume from 0.5% to 10%.

摘要翻译： 本发明提供了一种用于制造或包覆光纤预制件的装置，该装置包括用于从等离子体产生气体和材料进料装置产生等离子体的感应炬，其特征在于所述等离子体产生气体是第一气体 选自双原子气体和至少两种气体和氩气的混合物，体积比为0.5％至10％。

公开(公告)号：US06715321B1

公开(公告)日：2004-04-06

申请号：US09519847

申请日：2000-03-06

申请人： Pierre Ripoche ,  Alain Drouart ,  Benoît Gouez

发明人： Pierre Ripoche ,  Alain Drouart ,  Benoît Gouez

IPC分类号： C03B3707

CPC分类号： C03B37/01291 ,  C03B2207/60 ,  C03B2207/70 ,  Y02P40/57

摘要： A method of fabricating an optical fiber preform is disclosed which includes a step of outside deposition of silica possibly doped with at least one dopant by injecting at least one substance in the form of silica or a precursor of silica in the vicinity of a heating area created by a heating system during at least one pass of an injector system and the heating system along a longitudinal axis of the preform during which the relative positions of the injector and heating systems ore adjusted so that silica is deposited in the heated area regardless of the position of the heating system.

摘要翻译： 公开了一种制造光纤预制棒的方法，该方法包括通过在形成的加热区域附近注入至少一种二氧化硅或二氧化硅前体的至少一种物质，可以掺杂至少一种掺杂剂的二氧化硅的外部沉积步骤 通过在喷射器系统和加热系统沿着预成型件的纵向轴线的至少一次通过期间的加热系统，调节喷射器和加热系统矿石的相对位置，使得二氧化硅沉积在加热区域中而不管位置 的加热系统。

公开(公告)号：US06584806B2

公开(公告)日：2003-07-01

申请号：US09916324

申请日：2001-07-30

申请人： Emmanuel Petitfrere ,  Gérard Lavanant ,  Benoit Gouez

发明人： Emmanuel Petitfrere ,  Gérard Lavanant ,  Benoit Gouez

IPC分类号： C03B37018

CPC分类号： C03B37/01291 ,  Y02P40/57

摘要： A method of manufacturing a preform, the method comprising rotating a primary preform about an axis X, establishing relative displacement in translation between the preform and a plasma torch, and introducing a glass powder into the plasma flame, the glass powder being accelerated prior to penetrating into the plasma flame by an accelerator gas introduced into the flow of glass powder, said process being performed in an enclosure and said introduction being performed into an atmosphere at a regulated pressure lower than the pressure outside the enclosure. Apparatus for manufacturing the preform comprises an enclosure connected to a unit for regulating the pressure inside the enclosure.

公开(公告)号：US20020144521A1

公开(公告)日：2002-10-10

申请号：US10117228

申请日：2002-04-08

申请人： ALCATEL

发明人： Gerard Orcel ,  Marc Nicolardot ,  Jean-Florent Campion

IPC分类号： C03B037/018 ,  C03B037/075

CPC分类号： C03B37/01291 ,  C03B37/01205 ,  C03B37/01892 ,  C03B2201/075 ,  C03B2201/12 ,  C03B2201/20

摘要： The invention provides a low cost method of manufacturing high capacity preforms by chemical vapor deposition. More particularly, there is described a method of manufacturing an optical fiber preform, which method comprises the steps of providing a substrate tube of silica doped with sufficient chlorine to obtain an OH concentration of less than 100 ppb and doped with sufficient fluorine proportional to the chlorine doping to obtain a refractive index that is lower than that of a natural silica, depositing inner cladding and an optical core inside the substrate tube, collapsing the substrate tube to form a primary preform, and depositing outer cladding of said natural silica on the resulting primary preform. The invention is applicable to manufacturing optical fibers.

摘要翻译： 本发明提供了一种通过化学气相沉积制造高容量预成型件的低成本方法。 更具体地，描述了一种制造光纤预制件的方法，该方法包括以下步骤：提供掺杂足够氯的二氧化硅衬底管，以获得小于100ppb的OH浓度并掺入与氯成正比的足够的氟 掺杂以获得低于天然二氧化硅的折射率，在衬底管内沉积内包层和光学芯，使衬底管折叠以形成初级预制件，并将所述天然二氧化硅的外包层沉积在所得到的初级 预制件。 本发明适用于制造光纤。

公开(公告)号：US06386373B1

公开(公告)日：2002-05-14

申请号：US09523498

申请日：2000-03-10

申请人： Pierryle Jourdier ,  Christelle Lavallade ,  Jean-Florent Campion ,  Philippe Oskeritsian ,  Jean-Maxime Saugrain

发明人： Pierryle Jourdier ,  Christelle Lavallade ,  Jean-Florent Campion ,  Philippe Oskeritsian ,  Jean-Maxime Saugrain

IPC分类号： B07B100

CPC分类号： C03B37/01291 ,  C03B19/1065 ,  C03B2201/20 ,  C03C1/006 ,  C03C3/06 ,  C03C2201/11 ,  C03C2203/22 ,  Y02P40/57

摘要： A process is described for making silica powder by a sol-gel process whereby an aqueous suspension is made of a silica-based raw material which includes particles containing chlorine, the pH of the suspension is adjusted to a value from 3 to 4.5 if necessary, the suspension is gelled, the gel obtained is dried and the dried gel is fractionated into silica granules. The silica-based raw material preferably includes particles containing chlorine having a specific surface area less than 80 m2/g and less than 5 wt. % relative to the total quantity of particles containing chlorine of silica particles having a specific surface area from 150 m2/g to 300 m2/g. The use of such powder to manufacture an optical fiber preform is also described.

摘要翻译： 描述了通过溶胶 - 凝胶法制备二氧化硅粉末的方法，由此水性悬浮液由包含含有氯的颗粒的二氧化硅基原料制成，如果需要，将悬浮液的pH调节至3至4.5的值， 将悬浮液凝胶化，将得到的凝胶干燥，将干燥的凝胶分馏成二氧化硅颗粒。 二氧化硅系原料优选含有比表面积小于80m 2 / g且小于5wt％的含有氯的颗粒。 相对于比表面积为150m 2 / g〜300m 2 / g的含二氧化硅粒子的氯的总量的％。 还描述了使用这种粉末来制造光纤预制棒。

公开(公告)号：US20020011083A1

公开(公告)日：2002-01-31

申请号：US09916324

申请日：2001-07-30

申请人： ALCATEL

发明人： Emmanuel Petitfrere ,  Gerard Lavanant ,  Benoit Gouez

IPC分类号： C03B037/018

CPC分类号： C03B37/01291 ,  Y02P40/57

摘要： A method of manufacturing a preform, the method comprising rotating a primary preform about an axis X, establishing relative displacement in translation between the preform and a plasma torch, and introducing a glass powder into the plasma flame, the glass powder being accelerated prior to penetrating into the plasma flame by an accelerator gas introduced into the flow of glass powder, said process being performed in an enclosure and said introduction being performed into an atmosphere at a regulated pressure lower than the pressure outside the enclosure. Apparatus for manufacturing the preform comprises an enclosure connected to a unit for regulating the pressure inside the enclosure.

摘要翻译： 一种制造预成型体的方法，该方法包括使一个初级预型件围绕轴线X旋转，在预成型件和等离子体焰炬之间建立平移中的相对位移，并将玻璃粉末引入等离子体火焰中，玻璃粉末在穿透之前被加速 通过引入到玻璃粉末流中的加速器气体将等离子体火焰引入等离子体火焰中，所述方法在外壳中进行，并且所述引入在低于外壳外的压力的调节压力下进行。 用于制造预成型件的装置包括连接到用于调节外壳内的压力的单元的外壳。