-
公开(公告)号：DE69330200T2
公开(公告)日：2001-08-30
申请号：DE69330200
申请日：1993-12-06
Applicant: CORNING INC
Inventor： ANTOS ANTHONY JOSEPH , SMITH DAVID KINNEY
Abstract: The waveguide fibre has refractive index delta of inner core region higher than refractive index delta of outer core region and a reduced diffusion tail at the interface between the outer core region and the cladding region of the fibre. The diameter of the inner core region is less than about 60 per cent of the diameter of the entire core region of the fibre. Optionally there may be provided a ring at the outermost edge of the outer core region in which the refractive index delta is higher than the remainder of the outer core region.
-
公开(公告)号：AU660382B2
公开(公告)日：1995-06-22
申请号：AU5262993
申请日：1993-12-22
Applicant: CORNING INC
Inventor： ANTOS ANTHONY JOSEPH , SMITH DAVID KINNEY
Abstract: The waveguide fibre has refractive index delta of inner core region higher than refractive index delta of outer core region and a reduced diffusion tail at the interface between the outer core region and the cladding region of the fibre. The diameter of the inner core region is less than about 60 per cent of the diameter of the entire core region of the fibre. Optionally there may be provided a ring at the outermost edge of the outer core region in which the refractive index delta is higher than the remainder of the outer core region.
-
公开(公告)号：DE69323980D1
公开(公告)日：1999-04-22
申请号：DE69323980
申请日：1993-12-06
Applicant: CORNING INC
Inventor： ANTOS ANTHONY JOSEPH , BLANKENSHIP MICHAEL GREGG
IPC: C03B37/018 , C03B8/04 , C03B37/014 , G02B6/00
Abstract: In the mfr. of a preform from which optical waveguide fibre is drawn is provided. In this method a first soot stream and a second soot stream are separately formed and then directed to and collected on a mandrel. The streams are produced by oxidising separately generated vapour flows at first and second oxidation sites. The flow to the first site contains at least a first precursor (I) and that to the second site contains at least a second precursor (II) but not (I). Also claimed is a method where first and second vapour flows are oxidised into separate first and second soot particle streams. The first vapour flow contains at least (I) and (II). THe second vapour flow contains at least (II) but not (I). Pref. (I) is a cpd, which forms Si02 on oxidn, a metal halide or an organometallic cpd or a combination of precursors for Si02 and Ge02 which combination is formed before delivering the first vapour flow to the oxidn. site. (II) contains precursors for at least one of Ge02, Ti02, rare earth oxide or other meal oxides. (II) is a beta-diketonate complex.
-
公开(公告)号：AU660522B2
公开(公告)日：1995-06-29
申请号：AU3211693
申请日：1993-01-29
Applicant: CORNING INC
Inventor： HALL DOUGLAS WARREN , ANTOS ANTHONY JOSEPH , BLANKENSHIP MICHAEL GREGG , MURPHY EDWARD FRANCIS , SMITH DAVID KINNEY
Abstract: A silica based dispersion compensating optical waveguide fiber includes a core region and a surrounding clad layer. The core region has a refractive index profile which includes a central core region doped with an index raising dopant having a positive central core region index of refraction with a positive Delta %, surrounded by a core moat region having a negative moat region index of refraction with a negative Delta %. The clad layer has a clad index of refraction, said central core region index of refraction being greater than said clad index of refraction which is greater than said core moat region index of refraction. The fiber has a dispersion Ddcf more negative than -20 ps/nm-km at a given wavelength in the range of 1520nm to 1565nm, an attenuation at the given wavelength in the range of 1520nm to 1565nm less than 1 dB/km with a negative average dispersion slope Sdcf (ps/nm ) in the wavelength range of 1520nm to 1565nm, and the dispersion at the given wavelength in the range of 1520nm to 1565nm divided by the attenuation at the given wavelength in the range of 1520nm to 1565nm is more negative than -120 ps/nm-dB.
-
公开(公告)号：AU660522C
公开(公告)日：2003-01-23
申请号：AU3211693
申请日：1993-01-29
Applicant: CORNING INC
Inventor： HALL DOUGLAS WARREN , ANTOS ANTHONY JOSEPH , BLANKENSHIP MICHAEL GREGG , MURPHY EDWARD FRANCIS , SMITH DAVID KINNEY
Abstract: A silica based dispersion compensating optical waveguide fiber includes a core region and a surrounding clad layer. The core region has a refractive index profile which includes a central core region doped with an index raising dopant having a positive central core region index of refraction with a positive Delta %, surrounded by a core moat region having a negative moat region index of refraction with a negative Delta %. The clad layer has a clad index of refraction, said central core region index of refraction being greater than said clad index of refraction which is greater than said core moat region index of refraction. The fiber has a dispersion Ddcf more negative than -20 ps/nm-km at a given wavelength in the range of 1520nm to 1565nm, an attenuation at the given wavelength in the range of 1520nm to 1565nm less than 1 dB/km with a negative average dispersion slope Sdcf (ps/nm ) in the wavelength range of 1520nm to 1565nm, and the dispersion at the given wavelength in the range of 1520nm to 1565nm divided by the attenuation at the given wavelength in the range of 1520nm to 1565nm is more negative than -120 ps/nm-dB.
-
Patent Agency Ranking
公开(公告)号：DE69327120T2
公开(公告)日：2000-04-20
申请号：DE69327120
申请日：1993-01-20
Applicant: CORNING INC
Inventor： ANTOS ANTHONY JOSEPH , HALL DOUGLAS WARREN , BLANKENSHIP MICHAEL GREGG , MURPHY EDWARD FRANCIS , SMITH DAVID KINNEY
Abstract: A silica based dispersion compensating optical waveguide fiber includes a core region and a surrounding clad layer. The core region has a refractive index profile which includes a central core region doped with an index raising dopant having a positive central core region index of refraction with a positive Delta %, surrounded by a core moat region having a negative moat region index of refraction with a negative Delta %. The clad layer has a clad index of refraction, said central core region index of refraction being greater than said clad index of refraction which is greater than said core moat region index of refraction. The fiber has a dispersion Ddcf more negative than -20 ps/nm-km at a given wavelength in the range of 1520nm to 1565nm, an attenuation at the given wavelength in the range of 1520nm to 1565nm less than 1 dB/km with a negative average dispersion slope Sdcf (ps/nm ) in the wavelength range of 1520nm to 1565nm, and the dispersion at the given wavelength in the range of 1520nm to 1565nm divided by the attenuation at the given wavelength in the range of 1520nm to 1565nm is more negative than -120 ps/nm-dB.
-
公开(公告)号：DE69323980T2
公开(公告)日：1999-10-14
申请号：DE69323980
申请日：1993-12-06
Applicant: CORNING INC
Inventor： ANTOS ANTHONY JOSEPH , BLANKENSHIP MICHAEL GREGG
IPC: C03B37/018 , C03B8/04 , C03B37/014 , G02B6/00
Abstract: In the mfr. of a preform from which optical waveguide fibre is drawn is provided. In this method a first soot stream and a second soot stream are separately formed and then directed to and collected on a mandrel. The streams are produced by oxidising separately generated vapour flows at first and second oxidation sites. The flow to the first site contains at least a first precursor (I) and that to the second site contains at least a second precursor (II) but not (I). Also claimed is a method where first and second vapour flows are oxidised into separate first and second soot particle streams. The first vapour flow contains at least (I) and (II). THe second vapour flow contains at least (II) but not (I). Pref. (I) is a cpd, which forms Si02 on oxidn, a metal halide or an organometallic cpd or a combination of precursors for Si02 and Ge02 which combination is formed before delivering the first vapour flow to the oxidn. site. (II) contains precursors for at least one of Ge02, Ti02, rare earth oxide or other meal oxides. (II) is a beta-diketonate complex.
-
公开(公告)号：AU662851B2
公开(公告)日：1995-09-14
申请号：AU5250093
申请日：1993-12-20
Applicant: CORNING INC
Inventor： ANTOS ANTHONY JOSEPH , BLANKENSHIP MICHAEL GREGG
IPC: C03B37/018 , C03B8/04 , C03B37/014 , G02B6/00
Abstract: In the mfr. of a preform from which optical waveguide fibre is drawn is provided. In this method a first soot stream and a second soot stream are separately formed and then directed to and collected on a mandrel. The streams are produced by oxidising separately generated vapour flows at first and second oxidation sites. The flow to the first site contains at least a first precursor (I) and that to the second site contains at least a second precursor (II) but not (I). Also claimed is a method where first and second vapour flows are oxidised into separate first and second soot particle streams. The first vapour flow contains at least (I) and (II). THe second vapour flow contains at least (II) but not (I). Pref. (I) is a cpd, which forms Si02 on oxidn, a metal halide or an organometallic cpd or a combination of precursors for Si02 and Ge02 which combination is formed before delivering the first vapour flow to the oxidn. site. (II) contains precursors for at least one of Ge02, Ti02, rare earth oxide or other meal oxides. (II) is a beta-diketonate complex.
-
公开(公告)号：CA2084217C
公开(公告)日：2005-01-25
申请号：CA2084217
申请日：1992-12-01
Applicant: CORNING INC
Inventor： ANTOS ANTHONY JOSEPH , BLANKENSHIP MICHAEL GREGG , HALL DOUGLAS WARREN , MURPHY EDWARD FRANCIS , SMITH DAVID KINNEY
Abstract: Disclosed is a family of dispersion compensating optical fibers that are adapted for use with conventional single-mode transmission fibers that are optimized for zero dispersion operation at a wavelength in the range from 1290 nm to 1330 nm to form a transmission link suitable for low dispersion operation in the 1520-1565 nm wavelength window. The dispersion compensating fibers are capable of providing a dispersion more negative than -20 ps/nm-km and attenuation less than 1 dB/km at wavelengths in the 1520-1565 nm region. Certain of the dispersion compensating fibers also exhibit a dispersion versus wavelength relationship having a negative slope in the 1520-1565 nm region, to compensate for the dispersion versus wavelength slope of the trandsmission fiber. The dispersion compensating fiber can be advantageously combined with a fiber amplifier to form a compensator that is adapted to overcome attenuation introduced into the system by the dispersion compensating fiber. In one embodiment, the dispersion compensating fiber is also a distributed fiber amplifier.
-
公开(公告)号：DE69330200D1
公开(公告)日：2001-06-13
申请号：DE69330200
申请日：1993-12-06
Applicant: CORNING INC
Inventor： ANTOS ANTHONY JOSEPH , SMITH DAVID KINNEY
Abstract: The waveguide fibre has refractive index delta of inner core region higher than refractive index delta of outer core region and a reduced diffusion tail at the interface between the outer core region and the cladding region of the fibre. The diameter of the inner core region is less than about 60 per cent of the diameter of the entire core region of the fibre. Optionally there may be provided a ring at the outermost edge of the outer core region in which the refractive index delta is higher than the remainder of the outer core region.
-
-
-
-
-
-
-
-
-
Search Results
13
records
(took 0.065 seconds)
