公开(公告)号：JP2000211941A

公开(公告)日：2000-08-02

申请号：JP2000002769

申请日：2000-01-11

Applicant: LUCENT TECHNOLOGIES INC

Inventor： REENTS WILLIAM DAVID JR

IPC: C03B37/07 ,  G01N33/00 ,  G01N33/38 ,  G02B6/00

Abstract: PROBLEM TO BE SOLVED: To provide a method for determining the impurity content of a glass preform and/or the resultant optical fiber. SOLUTION: This method for producing a refractory article comprises a step of heating the sample of a refractory article at >=1,000 deg.C, a step of monitoring at least one of a released hydrogen-containing gas and a released carbon-containing gas, and a step of calculating the concentration of at least one of hydrogen gas and carbon in the sample on the basis of the amount of the released gas.

公开(公告)号：JP2000086266A

公开(公告)日：2000-03-28

申请号：JP18579599

申请日：1999-06-30

Applicant: LUCENT TECHNOLOGIES INC

Inventor： MANDICH MARY LOUISE ,  REENTS WILLIAM DAVID JR

IPC: C03B19/12 ,  C03B19/14 ,  C03B37/014 ,  C03B37/016 ,  G02B6/00

Abstract: PROBLEM TO BE SOLVED: To provide a method for removing super heat-resistant oxide particles from sol-gel body. SOLUTION: A fiber is drawn from a preform made of a silica body(e.g. over-clad tube or substrate tube formed by sol-gel process). The silica body is treated with a gaseous mixture containing halogenated sulfur compound free from oxygen at a temp. of 300-900 deg.C in order to remove super heat-resistant particles and/or to reduce the particle size and/or to dehydroxylate the silica body, before sintering. As the particle becomes a starting point of the fracture, the removal of the particles or the reducing of the particle size contributes to the drawing process for obtaining an optical fiber having desired strength. The heat treatment using the halogenated sulfur compound results in desired improved effects in comparison with the treatment using an oxygen-containing sulfur chloride such as thionyl chloride(SOCl2).

公开(公告)号：CA2398969A1

公开(公告)日：2003-04-25

申请号：CA2398969

申请日：2002-08-21

Applicant: LUCENT TECHNOLOGIES INC

Inventor： BETHEA CLYDE ,  VALDES JORGE LUIS ,  FRANEY JOHN PHILIP ,  REENTS WILLIAM DAVID JR

IPC: G02B6/38 ,  G02B6/42 ,  G02B6/36 ,  G02B6/44

Abstract: An apparatus and method that prevents a damaging movement in any plane-between fiber ends (103, 203) within a connector assembly (100), where a damaging movement is a movement of the fiber ends (103, 203) with the connector assembly (100) which may give rise to a damaging thermal event while an optical power source (152) is generating a high-optical- power-density signal that is propagated through the fibers (102, 202). A prevention mechanism integral to the connector assembly (100) precludes damaging movement. The prevention mechanism includes a) a locking mechanism that precludes any damaging movement while engaged and b) an indication generator that upon being engaged or disengaged generates an indication that can be used to control the on/off state of the optical power source (152).

公开(公告)号：DE69900295D1

公开(公告)日：2001-10-25

申请号：DE69900295

申请日：1999-06-29

Applicant: LUCENT TECHNOLOGIES INC

Inventor： MANDICH MARY LOUISE ,  REENTS WILLIAM DAVID JR

IPC: C03B19/12 ,  C03B19/14 ,  C03B37/014 ,  C03B37/016 ,  G02B6/00

Abstract: Fiber is drawn from a preform comprising a silica body, e.g., a sol-gel derived overcladding or substrate tube. Prior to sintering, the body is treated with a gaseous mixture containing one or more non-oxygenated sulfur halides, to remove and/or reduce the size of refractory oxide particles, and/or dehydroxylate the body. Removal of metal oxide particles or reduction in their size contributes to drawing of optical fiber exhibiting desirable strength, since such particles act as initiation sites for breakage. Advantageously, the halides include sulfur chlorides, which provide desirable improvements compared to common prior art treatment by oxygenated sulfur chlorides such as thionyl chloride (SOCl2).

公开(公告)号：DE69900295T2

公开(公告)日：2002-07-04

申请号：DE69900295

申请日：1999-06-29

Applicant: LUCENT TECHNOLOGIES INC

Inventor： MANDICH MARY LOUISE ,  REENTS WILLIAM DAVID JR

IPC: C03B19/12 ,  C03B19/14 ,  C03B37/014 ,  C03B37/016 ,  G02B6/00

Abstract: Fiber is drawn from a preform comprising a silica body, e.g., a sol-gel derived overcladding or substrate tube. Prior to sintering, the body is treated with a gaseous mixture containing one or more non-oxygenated sulfur halides, to remove and/or reduce the size of refractory oxide particles, and/or dehydroxylate the body. Removal of metal oxide particles or reduction in their size contributes to drawing of optical fiber exhibiting desirable strength, since such particles act as initiation sites for breakage. Advantageously, the halides include sulfur chlorides, which provide desirable improvements compared to common prior art treatment by oxygenated sulfur chlorides such as thionyl chloride (SOCl2).