公开(公告)号：EP1061054A1

公开(公告)日：2000-12-20

申请号：EP00304766.9

申请日：2000-06-06

Applicant: LUCENT TECHNOLOGIES INC.

Inventor： Fleming, James William, Jr. ,  Macchesney, John Burnette ,  Wisk, Patrick William ,  Yan, Man Fei

IPC: C03B37/012

CPC classification number: C03B37/01211

Abstract: A hybrid method of making silica-based optical fiber comprises providing a VAD-produced core rod and collapsing a substrate tube comprising an MCVD-produced cladding onto the core rod. Optically inactive cladding material (of the substrate tube) provides the bulk of the optical fiber. The hybrid process takes advantage of VAD's ability to rapidly produce a core rod of substantial size, and also takes advantage of MCVD's ability to form in a substrate tube a deposit having relatively complex refractive index profile. The hybrid method can result in lower production cost.

Abstract translation: 制备基于石英的光纤的混合方法包括提供VAD制作芯棒和折叠的管的衬底到芯棒上MCVD生产的包层的包括。 （的衬底管）光学非活性的包层材料提供了大部分的光纤。 所述混合方法利用的VAD的快速产生大量的大小的芯棒能力，因而需要的MCVD的，以形成成管的基板上具有相对复杂的折射率分布的存款能力的优势。 该混合方法可以导致更低的生产成本。

公开(公告)号：EP0982272A3

公开(公告)日：2000-06-28

申请号：EP99306469.0

申请日：1999-08-17

Applicant: LUCENT TECHNOLOGIES INC.

Inventor： Fleming, James William, Jr.

IPC: C03B37/012 ,  C03B29/02 ,  C03B37/016 ,  C03C23/00 ,  C04B41/80

CPC classification number: C03C23/006 ,  C03B29/02 ,  C03B37/01237 ,  C03B37/0148 ,  C03B37/016 ,  C03C15/02

Abstract: The smoothness of refractory dielectric bodies, particularly silica glass bodies derived from a sol-gel process, is substantially improved by a relatively straightforward treatment. In particular, the surface of the body is treated with a plasma fireball, such as induced by a plasma torch. The treatment is able to reduce the roughness, as measured by RA, in overcladding tubes formed by a sol-gel process by at least a factor of 2, typically at least a factor of 5. It is also possible to improve the smoothness of silica tubes that are drawn from a billet. Typically, the process reduces the roughness of silica bodies to an RA of about 1 microinch or less.

Abstract translation: 耐火电介质体，特别是二氧化硅的溶胶 - 凝胶体的平滑性，基本上由一个相对简单的处理提高。 特别地，所述主体的所述表面被处理以例如通过感应等离子炬的等离子体火球，：。 治疗能够降低粗糙度，通过RA所测量，在第五包覆通过至少为2的因子通过溶胶 - 凝胶工艺形成管，典型地，至少它的一个因素因此，能够提高二氧化硅的平滑 管的确从钢坯绘制。 典型地，该方法降低二氧化硅体的粗糙度RA为约1微英寸或更小。

公开(公告)号：EP1156018B1

公开(公告)日：2004-04-21

申请号：EP00310291.0

申请日：2000-11-20

Applicant: LUCENT TECHNOLOGIES INC.

Inventor： Fleming, James William, Jr. ,  Zydzik, George John

IPC: C03B37/012 ,  C03B37/027

CPC classification number: C03B37/01254 ,  C03B37/01211 ,  C03B37/0124 ,  C03B2203/18

公开(公告)号：EP0982272A2

公开(公告)日：2000-03-01

申请号：EP99306469.0

申请日：1999-08-17

Applicant: LUCENT TECHNOLOGIES INC.

Inventor： Fleming, James William, Jr.

IPC: C03B29/02 ,  C03B37/012 ,  C03B37/016 ,  C03C23/00 ,  C04B41/80

CPC classification number: C03C23/006 ,  C03B29/02 ,  C03B37/01237 ,  C03B37/0148 ,  C03B37/016 ,  C03C15/02

Abstract: The smoothness of refractory dielectric bodies, particularly silica sol-gel bodies, is substantially improved by a relatively straightforward treatment. In particular, the surface of the body is treated with a plasma fireball, such as induced by a plasma torch. The treatment is able to reduce the roughness, as measured by RA, in overcladding tubes formed by a sol-gel process by at least a factor of 2, typically at least a factor of 5. It is also possible to improve the smoothness of silica tubes that are drawn from a billet. Typically, the process reduces the roughness of silica bodies to an RA of about 1 microinch or less.

公开(公告)号：EP0905098A1

公开(公告)日：1999-03-31

申请号：EP98307668.8

申请日：1998-09-22

Applicant: LUCENT TECHNOLOGIES INC.

Inventor： Fleming, James William, Jr. ,  Pafchek, Robert M.

IPC: C03B37/012 ,  C03B29/02 ,  C03B32/00 ,  C03C23/00 ,  C04B41/00

CPC classification number: C03C25/6293 ,  C03B29/02 ,  C03B37/01237 ,  C03B37/0148 ,  C03B37/01493 ,  C03B2201/03 ,  C03B2201/04 ,  C03C23/006

Abstract: A refractory dielectric body, such as glass, is heated with a plasma fireball at conditions which do not result in substantial removal of a surface portion of the body (i.e. ≤0.1mm from the surface of the body), yet which are sufficient to reduce both surface and bulk impurities. Typically such conditions entail ensuring that the plasma heats the body to a surface temperature in the range of 1800 to 2300°C. Typically, the body is treated with the plasma in the absence of simultaneous deposition of material onto the body. The body may be solid or hollow, such as a rod or a tube, and the surface heated by the plasma may be the inside surface or the outer surface of the body. Advantageously, an isothermal, oxygen or oxygen-containing plasma is utilized. The invention is useful for reducing chlorine impurities by at least about 30% to a depth of at least about 10µm, with accompanying reduction of hydroxyl impurities. The invention thus provides a useful method for reducing the concentration of impurities that contribute to imperfections during the process of drawing fiber from an optical fiber preform, without requiring substantial removal of the surface of the preform.

Abstract translation: 的耐火介电体，颜色：例如玻璃，用等离子体火球在不导致在基本上除去体的（从主体的表面即≤0.1mm）的表面部分的条件下被加热，但这些都足以减少 两个表面和体杂质。 典型地搜索条件要求保证确实的等离子体加热体在1800范围内的表面温度至2300℃。通常，身体治疗与在不存在材料的同时沉积的到主体等离子体。 所述主体可以是实心或空心,:诸如杆或管，以及由等离子体加热可以是内表面或所述主体的所述外表面的表面。 有利的是，在等温，氧或含氧的等离子体被利用。 本发明是用于通过在至少约30％减少氯杂质的至少约10微米的深度处，伴随减少羟基杂质有用的。 因此，本发明提供了用于减少杂质的浓度从在光纤预制件拉制光纤的过程中，也有助于缺陷，而不需要大量的去除预成型体的表面的一种有用的方法。

公开(公告)号：EP0905098B1

公开(公告)日：2001-12-12

申请号：EP98307668.8

申请日：1998-09-22

Applicant: LUCENT TECHNOLOGIES INC.

Inventor： Fleming, James William, Jr. ,  Pafchek, Robert M.

IPC: C03B37/012 ,  C03B29/02 ,  C03B32/00 ,  C03C23/00 ,  C04B41/00

CPC classification number: C03C25/6293 ,  C03B29/02 ,  C03B37/01237 ,  C03B37/0148 ,  C03B37/01493 ,  C03B2201/03 ,  C03B2201/04 ,  C03C23/006

公开(公告)号：EP1156018A1

公开(公告)日：2001-11-21

申请号：EP00310291.0

申请日：2000-11-20

Applicant: LUCENT TECHNOLOGIES INC.

Inventor： Fleming, James William, Jr. ,  Zydzik, George John

IPC: C03B37/012 ,  C03B37/027

CPC classification number: C03B37/01254 ,  C03B37/01211 ,  C03B37/0124 ,  C03B2203/18

Abstract: A silica-based core rod is traversed by a heat source along its longitudinal axis, to provide heated, softened regions. During the traverse, compressive or tensile movements are provided along the rod's longitudinal axis, these movements inducing, respectively, increases or decreases in the core diameter at the softened regions. By providing selective core diameter increases and/or decreases across the entire length of the core rod, a desired core diameter profile is attained. It is possible to attain a substantially uniform core diameter, or a varying core diameter profile that provides particular properties, such as systematically varying dispersion. In addition, due to the ability to increase core diameter and core rod diameter in a controlled manner, it is possible to make larger core rods, and in turn larger fiber preforms, than presently possible. The so formed core rod is inserted into an overcladding tube and drawn to an optical fiber after collapse of the tube onto the core rod.

Abstract translation: 二氧化硅基的芯棒沿其纵向轴线被热源横穿，以提供加热的软化区域。 在横移期间，沿杆的纵向轴线提供压缩或拉伸运动，这些运动分别在软化区域处引起芯直径的增加或减小。 通过在芯棒的整个长度上提供选择的芯直径增加和/或减小，获得期望的芯直径分布。 可以获得基本上均匀的芯直径或提供特定性质的变化的芯直径轮廓，例如系统变化的分散体。 另外，由于能够以受控的方式增加芯直径和芯棒直径，所以可以制造比目前可能的更大的芯棒，以及大的纤维预制件。 将如此形成的芯棒插入外包管中，并将管塌陷到芯棒上之后将其拉入光纤。

公开(公告)号：EP0810184B1

公开(公告)日：2001-08-29

申请号：EP97303415.0

申请日：1997-05-19

Applicant: LUCENT TECHNOLOGIES INC.

Inventor： Fleming, James William, Jr.

IPC: C03B37/029

CPC classification number: C03B23/045 ,  C03B23/043 ,  C03B37/029 ,  C03B2205/68

公开(公告)号：EP0810184A3

公开(公告)日：1997-12-10

申请号：EP97303415.0

申请日：1997-05-19

Applicant: LUCENT TECHNOLOGIES INC.

Inventor： Fleming, James William, Jr.

IPC: C03B37/029

CPC classification number: C03B23/045 ,  C03B23/043 ,  C03B37/029 ,  C03B2205/68

Abstract: In accordance with the invention, an optical fiber (15) is made by the steps of providing an optical fiber (15) preform (9) having a longitudinal axis, rotating the preform (9) about the axis, directing onto the preform a plasma torch (11) which is reciprocated over a limited region parallel to the axis to define a heated region, and drawing a fiber (15) from the heated region. Apparatus for making optical fiber comprises a rotatable mount (10) for securing one end of a preform (9) and rotating it about a vertical axis, a plasma torch (11) for heating a drawing region (12) on the preform (9), a positioning stage for moving the torch (11) parallel to the vertical axis in a reciprocating manner, and a fiber drawing apparatus for drawing a fiber (15) from the heated region of the preform (9).

Abstract translation: 根据本发明，通过以下步骤制造光纤（15）：提供具有纵向轴线的光纤（15）预成型件（9）;使预成型件（9）绕轴线旋转;将等离子体 在平行于所述轴线的有限区域上往复运动的焰炬（11），以限定加热区域，并且从加热区域拉出纤维（15）。 用于制造光纤的设备包括用于固定预型件（9）的一端并使其绕垂直轴线旋转的可旋转底座（10），用于加热预型件（9）上的抽拉区域（12）的等离子体炬（11） ，用于使焊枪（11）平行于垂直轴线往复运动的定位台以及用于从预制件（9）的加热区域拉伸纤维（15）的纤维拉伸设备。

公开(公告)号：EP0810184A2

公开(公告)日：1997-12-03

申请号：EP97303415.0

申请日：1997-05-19

Applicant: LUCENT TECHNOLOGIES INC.

Inventor： Fleming, James William, Jr.

IPC: C03B37/029

CPC classification number: C03B23/045 ,  C03B23/043 ,  C03B37/029 ,  C03B2205/68

Abstract: In accordance with the invention, an optical fiber (15) is made by the steps of providing an optical fiber (15) preform (9) having a longitudinal axis, rotating the preform (9) about the axis, directing onto the preform a plasma torch (11) which is reciprocated over a limited region parallel to the axis to define a heated region, and drawing a fiber (15) from the heated region. Apparatus for making optical fiber comprises a rotatable mount (10) for securing one end of a preform (9) and rotating it about a vertical axis, a plasma torch (11) for heating a drawing region (12) on the preform (9), a positioning stage for moving the torch (11) parallel to the vertical axis in a reciprocating manner, and a fiber drawing apparatus for drawing a fiber (15) from the heated region of the preform (9).

Abstract translation: 光纤预制棒围绕其纵向轴线旋转，同时从其中拉出纤维。 通过将预成型件引导到等离子体焰炬上，该等离子体焰炬在其长度的一部分上轴向地往复运动。