Optical fiber preform manufacturing apparatus
    1.
    发明授权
    Optical fiber preform manufacturing apparatus 失效
    光纤预制棒制造装置

    公开(公告)号:US06487880B1

    公开(公告)日:2002-12-03

    申请号:US09457392

    申请日:1999-12-09

    IPC分类号: C03B3707

    摘要: Disclosed are an optical fiber preform manufacturing apparatus and method in which processes for shrinking and closing a deposited tube are conducted using a device suitable for those processes, which device is other than the device used in a deposition process for forming the deposited tube on the inner surface of a preform tube, thereby reducing the processing time while reducing the amount of OH penetrated from the preform tube into a vitreous component of the deposited tube, thereby achieving a reduction in OH loss. In accordance with the optical fiber preform manufacturing apparatus and method, operations are conducted which involve setting the heating temperature of a circular heater to a temperature lower than the softening point of a deposited tube, exhausting contaminants existing in the interior of the deposited tube while moving the circular heater at a desired temperature, setting the heating temperature of the circular heater to a temperature not lower than the softening point of the deposited tube, and shrinking and closing the deposited tube while moving the circular heater to a desired temperature.

    摘要翻译: 公开了一种光纤预制棒的制造装置和方法,其中使用适用于这些工艺的装置进行用于收缩和沉积沉积管的工艺,所述装置不同于用于在内部形成沉积管的沉积工艺中使用的装置 从而减少处理时间,同时将从预成形管穿透的OH的量减少到沉积管的玻璃质成分中,从而实现OH损失的降低。 根据光纤预制棒的制造装置和方法,进行以下操作:将圆形加热器的加热温度设定为低于沉积管的软化点的温度,排出存在于沉积管内部的污染物,同时移动 在所需温度下的圆形加热器,将圆形加热器的加热温度设定为不低于沉积管的软化点的温度,以及在将圆形加热器移动到所需温度的同时收缩并沉积沉积的管。

    Optical fiber preform manufacturing method for shrinkage and closing of deposited tube
    2.
    发明授权
    Optical fiber preform manufacturing method for shrinkage and closing of deposited tube 失效
    用于收缩和沉积管的光纤预制棒的制造方法

    公开(公告)号:US06840063B2

    公开(公告)日:2005-01-11

    申请号:US10059342

    申请日:2002-01-31

    摘要: An optical fiber preform manufacturing method whereby a clad layer and core layer are deposited on the inner surface of a preform tube for forming a deposited tube. One end of the deposited tube is shrunk and closed. The deposited tube which has a closed end is arranged extending vertically through a circular heater. A heat is applied to the deposited tube at a temperature lower than the softening point of a deposited tube, exhausting contaminants existing in the interior of the deposited tube while moving the circular heater. The heating temperature of the circular heater is then set to a temperature not lower than the softening point of the deposited tube-to shrink and close the deposited tube.

    摘要翻译: 一种光纤预制棒的制造方法,其中包覆层和芯层沉积在用于形成沉积管的预成型管的内表面上。 沉积管的一端收缩并闭合。 具有封闭端的沉积管布置成垂直延伸通过圆形加热器。 在低于沉积管的软化点的温度下对沉积的管施加热量,在移动圆形加热器的同时排出存在于沉积管内部的污染物。 然后将圆形加热器的加热温度设定为不低于沉积管的软化点的温度 - 收缩并封闭沉积的管。

    Dispersion-controlled optical fiber
    4.
    发明授权
    Dispersion-controlled optical fiber 有权
    色散控制光纤

    公开(公告)号:US06999667B2

    公开(公告)日:2006-02-14

    申请号:US10391669

    申请日:2003-03-19

    IPC分类号: G02B6/02 G02B6/16 G02B6/18

    摘要: Disclosed is an optical fiber comprising a center core which forms a passageway for transmitting optical signals and has a refractive index N1, and a cladding which encloses the center core and has a refractive index N0. The optical fiber further comprises an upper core, which has a distribution of refractive indices increased starting from a refractive index N2 (>N0) at its outer circumference to the refractive index N1 at its internal circumference, and a minutely depressed refractive index region, which is interposed between said upper core and cladding and has a refractive index N3. The refractive index N3 is lower than the refractive index N0.

    摘要翻译: 公开了一种光纤,包括中心芯,其形成用于传输光信号并具有折射率N 1的通道,以及包围中心纤芯并具有折射率N 0的包层 。 光纤还包括上芯,其具有从其外圆周处的折射率N 2(> N O 2)开始的折射率分布,折射率分布从折射率N 2 在其内圆周处的折射率N 1 N和折射率N 3 3以下的微小凹陷的折射率区域。 折射率N 3 3低于折射率N 0 O 3。

    Apparatus for fabricating optical fiber preform through external vapor deposition process
    5.
    发明申请
    Apparatus for fabricating optical fiber preform through external vapor deposition process 审中-公开
    用于通过外部气相沉积工艺制造光纤预制件的装置

    公开(公告)号:US20060185399A1

    公开(公告)日:2006-08-24

    申请号:US11243703

    申请日:2005-10-05

    IPC分类号: C03B37/018

    摘要: Disclosed is an apparatus for fabricating an optical fiber preform through an external vapor deposition process. The apparatus includes a lathe on which a primary preform is rotatably mounted by chucks, a burner assembly including a burner installation block having an inclined surface and a plurality of burners installed on the inclined surface of the burner installation block in such a manner that the burners spray flames and source gas towards the primary preform with mutually different spraying angles, and a carrier unit for moving the burner assembly lengthwise along the primary preform.

    摘要翻译: 公开了一种通过外部气相沉积工艺制造光纤预制件的装置。 该装置包括车床,初级预制件通过卡盘可旋转地安装在其上,燃烧器组件包括具有倾斜表面的燃烧器安装块和安装在燃烧器安装块的倾斜表面上的多个燃烧器,使得燃烧器 以相互不同的喷射角向主预制件喷射火焰和源气体,以及用于沿着初级预型件纵向移动燃烧器组件的载体单元。

    Wide-band dispersion controlled optical fiber
    6.
    发明授权
    Wide-band dispersion controlled optical fiber 有权
    宽带色散控制光纤

    公开(公告)号:US07003205B2

    公开(公告)日:2006-02-21

    申请号:US10634699

    申请日:2003-08-05

    摘要: Disclosed is a wide-band dispersion controlled optical fiber. The optical fiber enables the use of optical signals in various wavelength regions in a wavelength division multiplexing mode communication network by controlling the position of the zero dispersion wavelength, and enables long distance transmission by controlling dispersion slope and bending loss. Furthermore, there is an advantage in that the optical fiber enables not only short distance transmission but also middle/long distance transmission using a single type of optical fiber because the optical fiber is controlled to have negative dispersion values in the O-band wavelength region and positive dispersion values with small deviations in the C-band and L-band wavelength regions.

    摘要翻译: 公开了一种宽带色散控制光纤。 该光纤通过控制零色散波长的位置,能够在波分复用模式通信网络中的各种波长区域中使用光信号,并且通过控制色散斜率和弯曲损耗来实现长距离传输。 此外,光纤的优点在于,不仅能够实现短距离传输,而且还能够使用单一类型的光纤进行中长距离传输,因为光纤被控制为在O波段波长区域具有负色散值, 在C波段和L波段区域中具有小偏差的正色散值。

    Apparatus for over-cladding large diameter optical fiber pre-form using the same
    7.
    发明授权
    Apparatus for over-cladding large diameter optical fiber pre-form using the same 失效
    用于外包层大直径光纤预制的装置

    公开(公告)号:US06729163B2

    公开(公告)日:2004-05-04

    申请号:US09734124

    申请日:2000-12-11

    IPC分类号: C03B3702

    摘要: Disclosed is a high efficiency burner and an apparatus for over-cladding an optical fiber pre-form using the same. The high efficiency burner heating an optical fiber pre-form includes burner covers, burner bodies arranged between the burner covers, and fuel dischargers arranged in at least two rows between the burner bodies, and divided by a partition, respectively.

    摘要翻译: 公开了一种高效率燃烧器和用于使用该燃烧器的光纤预制件的外包层的装置。 加热光纤预制件的高效率燃烧器包括燃烧器盖,布置在燃烧器盖之间的燃烧器主体和分布在燃烧器主体之间的至少两排的燃料排放器,并且分隔开。

    Method for fabricating optical fiber preform and method for fabricating optical fiber using the same
    8.
    发明申请
    Method for fabricating optical fiber preform and method for fabricating optical fiber using the same 审中-公开
    光纤预制棒的制造方法及其制造方法

    公开(公告)号:US20070157673A1

    公开(公告)日:2007-07-12

    申请号:US11583270

    申请日:2006-10-19

    CPC分类号: C03B37/014

    摘要: Disclosed are a method for fabricating an optical fiber preform and a method for fabricating an optical fiber using the optical fiber preform. The method for fabricating the optical fiber preform including the steps of: (a) growing a first soot preform on a starting member by a soot deposition; (b) dehydrating the first soot preform; (c) sintering the first dehydrated soot preform to obtain a first glassed optical fiber perform; (e) growing an over-clad soot layer on the first optical fiber preform by soot deposition to obtain a second soot preform; and (f) sintering the second soot preform so as to obtain a second optical fiber preform which is glassed, wherein an average density of the first soot preform is substantially within a range of 0.19˜0.30 g/cc, and the average density of the over-clad soot layer is substantially within a range of 0.5˜0.75 g/cc.

    摘要翻译: 公开了一种用于制造光纤预制件的方法和使用该光纤预制件制造光纤的方法。 制造光纤预制棒的方法包括以下步骤:(a)通过烟灰沉积在起始构件上生长第一烟炱预制件; (b)使第一烟炱预制件脱水; (c)烧结第一脱水烟炱预制件以获得第一玻璃纤维的性能; (e)通过烟灰沉积在第一光纤预制件上生长过度覆盖的烟灰层,以获得第二烟炱预制件; 和(f)烧结所述第二烟炱预制件,以获得玻璃化的第二光纤预制件,其中所述第一烟炱预制件的平均密度基本上在0.19〜0.30g / cc的范围内, 过涂层烟灰层基本上在0.5〜0.75g / cc的范围内。

    Amplifying optical fiber and method for fabricating the same
    10.
    发明授权
    Amplifying optical fiber and method for fabricating the same 失效
    放大光纤及其制造方法

    公开(公告)号:US06987923B2

    公开(公告)日:2006-01-17

    申请号:US10638985

    申请日:2003-08-12

    IPC分类号: G02B6/00

    摘要: Disclosed is an amplifying optical fiber for amplifying optical signal transmitted therethrough by stimulated emission, the amplifying optical fiber comprising: an inner core disposed at a center of said optical fiber and containing MX, GaS3/2 and RE; an outer core surrounding said inner core and containing SiO2; and a cladding surrounding said outer core and containing SiO2, wherein said M contained in MX is one component selected from the group consisting of Na, K, Rb and Cs; said X contained in MX is one component selected from the group consisting of F, Cl, Br, and I; and said RE is one component selected from the group consisting of Ce, Pr, Pm, Nd, Sm, Eu, Gd, Tb, Ho, Dy, Er, Tm and Yb.

    摘要翻译: 公开了一种放大光纤,用于通过受激发射放大透过其的光信号,放大光纤包括:设置在所述光纤中心并包含MX,GaS 3/2和RE的内核 ; 围绕所述内芯并包含SiO 2的外核; 以及围绕所述外芯并包含SiO 2的包层,其中MX中所含的M是选自Na,K,Rb和Cs中的一种成分; MX中所含的X是选自F,Cl,Br和I的一个组分; 所述RE为选自Ce,Pr,Pm,Nd,Sm,Eu,Gd,Tb,Ho,Dy,Er,Tm和Yb中的一种成分。