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公开(公告)号：JPH11142671A
公开(公告)日：1999-05-28
申请号：JP25792098
申请日：1998-09-11
Applicant: CORNING INC
Inventor： JONES PETER CHRISTOPHER , MA DAIPING , SMITH DAVID KINNEY
Abstract: PROBLEM TO BE SOLVED: To allow the parameter modeling in the waveguide fiber to have a core refractive index distribution generating a set of beforehand selected operation characteristics and optimizing attenuation for its special refractive index distribution by that a minimum distribution attenuation waveguide fiber is provided with a minimum effective refractive index and a minimum change rate of the square of a propagation constant when the waveguide is bent. SOLUTION: This core refractive index distribution is a regular type one, and the refractive index distribution of a solid line is provided with a central point 24 of a comparatively low relative refractive index percent Δ%. For instance, a distribution part 6 of a higher relative refractive index percent Δ% may be an (α) distribution or a rounded step distribution also. Further, definitions of a radius and a width are shown. For instance, the radius 3 of a central distribution is a line that a core central line prolongs to a point that the distribution 6 performed with an extrapolation method means an (x) axis. Then, the parameter modeling in the waveguide fiber is provided with the minimum effective refractive index and the minimum change rate of the square of the propagation constant of the minimum distribution attenuation waveguide fiber when the waveguide is bent.
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公开(公告)号：AU8304598A
公开(公告)日：1999-03-25
申请号：AU8304598
申请日：1998-09-02
Applicant: CORNING INC
Inventor： JONES PETER CHRISTOPHER , SMITH DAVID KINNEY , MA DAIPING
Abstract: Disclosed is a dispersion shifted single mode optical waveguide fiber having a segmented core refractive index profile in which the profile parameters are selected to provide an attenuation minimum. A set of profiles having the same general shape and dimensions is shown to have a group of profiles contained in a sub-set which exhibit a minimum of attenuation as compared to the remaining members of the set. The members of the sub-set have been found to have the lowest effective group index, ngeff, and the lowest change in beta under waveguide fiber bending.
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公开(公告)号：DE69836402T2
公开(公告)日：2007-09-20
申请号：DE69836402
申请日：1998-08-17
Applicant: CORNING INC
Inventor： JONES PETER CHRISTOPHER , MA DAIPING , SMITH DAVID KINNEY
Abstract: Disclosed is a dispersion shifted single mode optical waveguide fiber having a segmented core refractive index profile in which the profile parameters are selected to provide an attenuation minimum. A set of profiles having the same general shape and dimensions is shown to have a group of profiles contained in a sub-set which exhibit a minimum of attenuation as compared to the remaining members of the set. The members of the sub-set have been found to have the lowest effective group index, ngeff, and the lowest change in beta under waveguide fiber bending.
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公开(公告)号：CA2246821A1
公开(公告)日：1999-03-12
申请号：CA2246821
申请日：1998-09-08
Applicant: CORNING INC
Inventor： SMITH DAVID KINNEY , JONES PETER CHRISTOPHER , MA DAIPING
Abstract: Disclosed is a single mode optical waveguide fiber having a core refractive index profile in which the profile parameters are selected to provide an attenuation minimum. A set of profiles having the same general shape and dimensions is shown to have a group of profiles contained in a sub-set which exhibit a minimum of attenuation as compared to the remaining members of the set. The members of the sub-set have been found to have the lowest effective group index, n geff, and the lowest change in .beta.2 under waveguide fiber bend ing.
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公开(公告)号：AU665682B2
公开(公告)日：1996-01-11
申请号：AU4018793
申请日：1993-06-11
Applicant: CORNING INC
Inventor： AMOS LYNN GRANVILLE , JONES PETER CHRISTOPHER
IPC: C03B37/018 , C03B37/014 , G02B6/00 , G02B6/036 , G02B6/16 , C03B37/027
Abstract: An optical waveguide fiber with a core region 1 and a cladding region 2, wherein said cladding region 2 includes an outer cladding region 3 is disclosed wherein said outer cladding region 3 is a very thin (less than 1 mu m in thickness) layer of Ti02-Si02 glass which results in a substantial reduction in the number of fiber breaks resulting from the fiber drawing process and having a predetermined Ti02 concentration less than or equal to about 10 wt. %. A method for making said fiber is also discussed.
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Patent Agency Ranking
公开(公告)号：AT345513T
公开(公告)日：2006-12-15
申请号：AT98115438
申请日：1998-08-17
Applicant: CORNING INC
Inventor： JONES PETER CHRISTOPHER , MA DAIPING , SMITH DAVID KINNEY
Abstract: Disclosed is a dispersion shifted single mode optical waveguide fiber having a segmented core refractive index profile in which the profile parameters are selected to provide an attenuation minimum. A set of profiles having the same general shape and dimensions is shown to have a group of profiles contained in a sub-set which exhibit a minimum of attenuation as compared to the remaining members of the set. The members of the sub-set have been found to have the lowest effective group index, ngeff, and the lowest change in beta under waveguide fiber bending.
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公开(公告)号：ID21430A
公开(公告)日：1999-06-10
申请号：ID981200
申请日：1998-09-07
Applicant: CORNING INC
Inventor： JONES PETER CHRISTOPHER , MA DAIPING , SMITH DAVID KINNEY
Abstract: Disclosed is a dispersion shifted single mode optical waveguide fiber having a segmented core refractive index profile in which the profile parameters are selected to provide an attenuation minimum. A set of profiles having the same general shape and dimensions is shown to have a group of profiles contained in a sub-set which exhibit a minimum of attenuation as compared to the remaining members of the set. The members of the sub-set have been found to have the lowest effective group index, ngeff, and the lowest change in beta under waveguide fiber bending.
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公开(公告)号：AU6808590A
公开(公告)日：1991-06-27
申请号：AU6808590
申请日：1990-12-14
Applicant: CORNING INC
Inventor： BACKER MARCELLA ROSE , BLANKENSHIP MICHAEL GREGG , CAVENDER RALSTON , JONG BERNARD J DE , ELDER MELANIE L , GLAESEMANN GREGORY SCOTT , JONES PETER CHRISTOPHER , MURPHY JAMES ANTHONY
IPC: C03B37/018 , C03B37/014 , C03C13/04 , G02B6/00 , G02B6/036 , G02B6/16
Abstract: An optical waveguide fiber with a fatigue resistant TiO2-SiO2 outer cladding including a cylindrical outermost layer with TiO2 concentration greater than 10.5 wt.% and thickness less than 3 mu m. The fiber may include a two layer outer cladding with higher TiO2 concentration in the outer layer. The outer cladding may ionclude a plurality of inhomogeneities dispersed in a TiO2-SiO2 matrix. A method of making an optical waveguide fiber with a fatigue resistant TiO2-SiO2 outer cladding, and a substantially glass blank for drawing into such fiber, wherein a glass soot TiO2-SiO2 outermost layer, with an initial TiO2 concentration greater than 10.5 wt.%, is deposited on a preform, and the preform is exposed to an atmosphere of chlorine at a high temperature, and the resulting TiO2 concentration in the outermost layer of the TiO2-SiO2 outer cladding of the substantially glass blank is less than the initial TiO2 concentration. In the glass blank form, the outermost layer includes a substantial volume percentage of crystalline phases and in the fiber form, the outermost layer includes inhomogeneities.
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公开(公告)号：DE69836402D1
公开(公告)日：2006-12-28
申请号：DE69836402
申请日：1998-08-17
Applicant: CORNING INC
Inventor： JONES PETER CHRISTOPHER , MA DAIPING , SMITH DAVID KINNEY
Abstract: Disclosed is a dispersion shifted single mode optical waveguide fiber having a segmented core refractive index profile in which the profile parameters are selected to provide an attenuation minimum. A set of profiles having the same general shape and dimensions is shown to have a group of profiles contained in a sub-set which exhibit a minimum of attenuation as compared to the remaining members of the set. The members of the sub-set have been found to have the lowest effective group index, ngeff, and the lowest change in beta under waveguide fiber bending.
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公开(公告)号：BR9803400A
公开(公告)日：1999-11-03
申请号：BR9803400
申请日：1998-09-09
Applicant: CORNING INC
Inventor： JONES PETER CHRISTOPHER , MA DAIPING , SMITH DAVID KINNEY
Abstract: Disclosed is a dispersion shifted single mode optical waveguide fiber having a segmented core refractive index profile in which the profile parameters are selected to provide an attenuation minimum. A set of profiles having the same general shape and dimensions is shown to have a group of profiles contained in a sub-set which exhibit a minimum of attenuation as compared to the remaining members of the set. The members of the sub-set have been found to have the lowest effective group index, ngeff, and the lowest change in beta under waveguide fiber bending.
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