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公开(公告)号：ID30554A
公开(公告)日：2001-12-20
申请号：ID20010838
申请日：1999-08-10
Applicant: CORNING INC
Inventor： BHAGAVATULA VENKATA A
IPC: G02B6/02 , B29D20060101 , G02B20060101 , G02B1/00 , G02B6/036 , G08C20060101
Abstract: Optical pathways along optical fibers, including multiple cores or multiple modes, are arranged with positive and negative dispersion characteristics. Coupling or connecting mechanisms regulate relative lengths of travel between the pathways having different dispersion characteristics so the total dispersion of the combined pathways approaches zero dispersion over a range of signal wavelengths intended for transmission.
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公开(公告)号：CA2403387A1
公开(公告)日：2001-09-27
申请号：CA2403387
申请日：2001-03-19
Applicant: CORNING INC
Inventor： BHAGAVATULA VENKATA A , HIMMELREICH JOHN , UKRAINCZYK LJERKA , WILLIAMS GREGORY E
Abstract: A spherical lens formed by fusing a generally homogenous glass lens blank to the distal end of an optical fiber, heating and tensioning the lens blank to separate it in two segments with the segment attached to the optical fiber defining a tapered end, and heating the lens blank above its softening point so that the spherical lens forms. The lens blank is fabricated from a 4 weight percent borosilicate glass having a softening point less than that of the core of the optical fiber. The lens member defines a throat region adjacent the optical fiber whose cross-sectional dimension is substantially greater than the diameter of the optical fiber, but substantially less than the diameter of the spherical lens.
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公开(公告)号：ID28479A
公开(公告)日：2001-05-31
申请号：ID20010788
申请日：1999-08-20
Applicant: CORNING INC
Inventor： BHAGAVATULA VENKATA A , HAWK ROBERT M
IPC: C03B37/012 , G02B6/02 , G02B6/036 , G02B6/17 , G02B6/22
Abstract: Disclosed are a single mode waveguide fiber and a multimode waveguide fiber which have a radially non-uniform and azimuthally asymmetric core, and methods of making such a waveguide fiber. This asymmetry provides additional degrees of freedom for use in forming a waveguide having particular performance characteristics.
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公开(公告)号：ID27575A
公开(公告)日：2001-04-12
申请号：ID20002505
申请日：1999-04-28
Applicant: CORNING INC
Inventor： BERKEY GEORGE E , BHAGAVATULA VENKATA A
IPC: G02B6/00 , C03B23/20 , C03B37/012 , G02B6/02 , C03B37/027
Abstract: Different pieces of glass (81, 82) are fused together to create a preform (94) from which a glass fiber with axially varying properties is drawn.
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公开(公告)号：BR9910101A
公开(公告)日：2000-12-26
申请号：BR9910101
申请日：1999-04-14
Applicant: CORNING INC
Inventor： BHAGAVATULA VENKATA A , EVANS ALAN FRANK
Abstract: A unitary dispersion managed waveguide fiber with distributed amplification and a system incorporating the waveguide fiber are disclosed. Total dispersion along the waveguide fiber changes from positive to negative along the length of the waveguide over a transmission wavelength range. Distributed amplification is provided by stimulated emission of a dilute concentration of a rare earth dopant in the waveguide, by Raman effects or by both.
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Patent Agency Ranking
公开(公告)号：CA2327470A1
公开(公告)日：1999-11-11
申请号：CA2327470
申请日：1999-04-28
Applicant: CORNING INC
Inventor： BERKEY GEORGE E , BHAGAVATULA VENKATA A
IPC: G02B6/00 , C03B23/20 , C03B37/012 , G02B6/02 , C03B37/027
Abstract: Different pieces of glass (81, 82) are fused together to create a preform (9 4) from which a glass fiber with axially varying properties is drawn.
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公开(公告)号：HUP9901435A2
公开(公告)日：1999-08-30
申请号：HUP9901435
申请日：1997-02-11
Applicant: CORNING INC
Inventor： BHAGAVATULA VENKATA A
Abstract: Optical signals are dispersed according to their wavelength by an optical path length difference generator that couples a single pathway conveying a plurality of different wavelength signals to multiple pathways separately conveying the different wavelength signals. The optical path length generator can be formed by a reflective stack having a plurality of partially reflective surfaces for reflecting successive portions of the energy of each of the different wavelength signals along different length optical paths.
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公开(公告)号：AU7243098A
公开(公告)日：1998-08-03
申请号：AU7243098
申请日：1997-12-04
Applicant: CORNING INC
Inventor： BHAGAVATULA VENKATA A
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公开(公告)号：CZ333597A3
公开(公告)日：1998-05-13
申请号：CZ333597
申请日：1997-02-11
Applicant: CORNING INC
Inventor： BHAGAVATULA VENKATA A
IPC: G02B6/293 , G02B6/12 , G02B6/34 , G02B27/14 , G02F1/21 , H04B10/27 , H04B10/29 , H04B10/67 , H04J14/00 , H04J14/02
Abstract: Optical signals are dispersed according to their wavelength by an optical path length difference generator that couples a single pathway conveying a plurality of different wavelength signals to multiple pathways separately conveying the different wavelength signals. The optical path length generator can be formed by a reflective stack having a plurality of partially reflective surfaces for reflecting successive portions of the energy of each of the different wavelength signals along different length optical paths.
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公开(公告)号：PL323297A1
公开(公告)日：1998-03-16
申请号：PL32329797
申请日：1997-02-11
Applicant: CORNING INC
Inventor： BHAGAVATULA VENKATA A
IPC: G02B6/293 , G02B6/12 , G02B6/34 , G02B27/14 , G02F1/21 , H04B10/27 , H04B10/29 , H04B10/67 , H04J14/00 , H04J14/02
Abstract: Optical signals are dispersed according to their wavelength by an optical path length difference generator that couples a single pathway conveying a plurality of different wavelength signals to multiple pathways separately conveying the different wavelength signals. The optical path length generator can be formed by a reflective stack having a plurality of partially reflective surfaces for reflecting successive portions of the energy of each of the different wavelength signals along different length optical paths.
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