公开(公告)号：EP1221430A3

公开(公告)日：2003-01-08

申请号：EP01306909.1

申请日：2001-08-14

Applicant: LUCENT TECHNOLOGIES INC.

Inventor： de Hazan, Yoram ,  Mac Chesney, John Burnette ,  Stockert, Thomas Edward ,  White, Christopher Alan

IPC: C03B37/014

CPC classification number: C03B37/01446 ,  C03B2201/12

Abstract: The process time required for fluorine doping of porous silica bodies to produce fluorine doped preforms for the manufacture of depressed index optical fibers is reduced by separating the doping step into a predeposit step, where "excess" fluorine is deposited on the silica particles within the porous silica body, and a drive-in step where atomic fluorine is distributed into the silica particles. The drive-in step is conveniently combined with the sintering or consolidation step to further enhance the efficiency of the doping process and is carried out at a temperature above 1300°C in an atmosphere devoid of fluorine.

Abstract translation: 通过将掺杂步骤分离成预沉积步骤来减少多孔二氧化硅的氟掺杂以制备氟掺杂预制棒用于制造凹陷折射率光纤所需的处理时间，其中“过量”氟沉积在多孔二氧化硅颗粒内的二氧化硅颗粒上 二氧化硅体，以及其中原子氟分布到二氧化硅颗粒中的驱入步骤。 驱入步骤方便地与烧结或固结步骤组合以进一步提高掺杂过程的效率，并且在高于1300℃的温度下在无氟气氛中进行。

公开(公告)号：EP0905093A1

公开(公告)日：1999-03-31

申请号：EP98307231.5

申请日：1998-09-08

Applicant: LUCENT TECHNOLOGIES INC.

Inventor： Fleming, Debra Anne ,  Johnson, David Wilfred Jr. ,  Hubbauer, Philip ,  MacChesney, John Burnette ,  Stockert, Thomas Edward ,  Walz, Frederick W. Jr.

IPC: C03B19/12 ,  C04B35/14 ,  C04B35/624

CPC classification number: C04B35/14 ,  C03B19/12 ,  C04B35/624

Abstract: The invention is a sol-gel extrusion process which allows fabrication of both thick and thin wall tubes. For example, the process is capable of preparing silica overcladding tubes in a manner easier than sol-gel casting processes, and also capable of preparing relatively thin substrate tubes, which are difficult to cast. According to the invention, a silica dispersion containing a stabilizing agent is provided, a gelling agent is added to the dispersion to induce gellation, and the resultant gel is extruded into a silica body, in the substantial absence, i.e. less than 0.5%wt., of polymeric material from the gel. Substantially avoiding the inclusion of such polymeric material in overcladding and substrate tubes offers significant commercial advantages by reducing the time and energy required to remove organic materials from the tube bodies, by reducing environmental impact and by reducing the amount of impurities introduced in the tubes.

Abstract translation: 本发明是一种溶胶 - 凝胶挤出方法，其允许制造厚壁和薄壁管。 例如，该方法能够以比溶胶 - 凝胶浇铸方法更容易的方式制备二氧化硅外包管，并且还能够制备难以铸造的相对薄的基材管。 根据本发明，提供了含有稳定剂的二氧化硅分散体，向分散体中加入胶凝剂以引发凝胶化，并将所得凝胶挤出成二氧化硅体，基本上不存在，即小于0.5重量％。 ，来自凝胶的聚合物材料。 通过减少从管体中除去有机材料所需的时间和能量，通过减少环境影响和减少引入管中的杂质量，基本上避免了这种聚合物材料在外包装和底物管中的包含。

公开(公告)号：EP1221430B1

公开(公告)日：2004-11-24

申请号：EP01306909.1

申请日：2001-08-14

Applicant: LUCENT TECHNOLOGIES INC.

Inventor： de Hazan, Yoram ,  Mac Chesney, John Burnette ,  Stockert, Thomas Edward ,  White, Christopher Alan

IPC: C03B37/014

CPC classification number: C03B37/01446 ,  C03B2201/12

公开(公告)号：EP1221430A2

公开(公告)日：2002-07-10

申请号：EP01306909.1

申请日：2001-08-14

Applicant: LUCENT TECHNOLOGIES INC.

Inventor： de Hazan, Yoram ,  Mac Chesney, John Burnette ,  Stockert, Thomas Edward ,  White, Christopher Alan

IPC: C03B37/014

CPC classification number: C03B37/01446 ,  C03B2201/12

Abstract: The process time required for fluorine doping of porous silica bodies to produce fluorine doped preforms for the manufacture of depressed index optical fibers is reduced by separating the doping step into a predeposit step, where "excess" fluorine is deposited on the silica particles within the porous silica body, and a drive-in step where atomic fluorine is distributed into the silica particles. The drive-in step is conveniently combined with the sintering or consolidation step to further enhance the efficiency of the doping process and is carried out at a temperature above 1300°C in an atmosphere devoid of fluorine.

Abstract translation: 通过将掺杂步骤分离成预沉积步骤来减少多孔二氧化硅的氟掺杂以制备氟掺杂预制棒用于制造凹陷折射率光纤所需的处理时间，其中“过量”氟沉积在多孔二氧化硅颗粒内的二氧化硅颗粒上 二氧化硅体，以及其中原子氟分布到二氧化硅颗粒中的驱入步骤。 驱入步骤方便地与烧结或固结步骤组合以进一步提高掺杂过程的效率，并且在高于1300℃的温度下在无氟气氛中进行。

公开(公告)号：EP1172339B1

公开(公告)日：2003-04-02

申请号：EP01300525.1

申请日：2001-01-22

Applicant: LUCENT TECHNOLOGIES INC.

Inventor： De Hazan, Yoram ,  Macchesney, John Burnette ,  Stockert, Thomas Edward ,  Trevor, Dennis J. ,  Windeler, Robert Scott

IPC: C03B37/016 ,  C03B19/12

CPC classification number: G02B6/02347 ,  C03B19/12 ,  C03B37/016 ,  C03B2203/14 ,  C03B2203/42

公开(公告)号：EP0905093B1

公开(公告)日：2002-11-06

申请号：EP98307231.5

申请日：1998-09-08

Applicant: LUCENT TECHNOLOGIES INC.

Inventor： Fleming, Debra Anne ,  Johnson, David Wilfred Jr. ,  Hubbauer, Philip ,  MacChesney, John Burnette ,  Stockert, Thomas Edward ,  Walz, Frederick W. Jr.

IPC: C03B19/12 ,  C04B35/14 ,  C04B35/624

CPC classification number: C04B35/14 ,  C03B19/12 ,  C04B35/624

公开(公告)号：EP1172339A1

公开(公告)日：2002-01-16

申请号：EP01300525.1

申请日：2001-01-22

Applicant: LUCENT TECHNOLOGIES INC.

Inventor： De Hazan, Yoram ,  Macchesney, John Burnette ,  Stockert, Thomas Edward ,  Trevor, Dennis J. ,  Windeler, Robert Scott

IPC: C03B37/016 ,  C03B19/12

CPC classification number: G02B6/02347 ,  C03B19/12 ,  C03B37/016 ,  C03B2203/14 ,  C03B2203/42

Abstract: The disclosed method of making microstructured optical fiber comprises providing a mold, with a multiplicity of elongate elements extending into the mold and being maintained in a predetermined spatial arrangement with respect to the mold. Silica-containing sol is introduced into the mold and is caused to or permitted to gel, such that a gel body results. After removing the elongate elements from the gel body and removing the gel body from the mold, the gel body is dried, sintered and purified, and the microstructured fiber is drawn from the sintered body.

Abstract translation: 所公开的制造微结构光纤的方法包括提供模具，多个细长元件延伸到模具中并相对于模具保持预定的空间布置。 将含硅溶胶引入模具中并引起或允许凝胶化，从而导致凝胶体。 在从凝胶体中除去细长元件并从模具中取出凝胶体之后，将凝胶体干燥，烧结和纯化，并将微结构纤维从烧结体中拉出。