公开(公告)号：BR9714471A

公开(公告)日：2000-05-16

申请号：BR9714471

申请日：1997-07-03

Applicant: CORNING INC

Inventor： BLASZYK PAUL E ,  CHRISTOFF WILLIAM R ,  GALLAGHER DANIEL E ,  HAWK ROBERT M ,  KIEFER WILLIAM J

IPC: G02B6/00 ,  C03B37/027 ,  C03B37/03 ,  C03B37/12 ,  C03C25/00 ,  C03C25/12 ,  C03B23/047

Abstract: Optical fiber is provided with a periodically reversing spin while the fiber is pulled through a melt zone. A cooled region of the fiber downstream from the melt zone passes between a pair of opposed elements. The opposed elements are moved so that surface regions engaging the fiber move in opposite lateral directions relative to one another, thus spinning the fiber about its axis. The lateral movement of the engaged surface portions is periodically reversed to reverse the spin direction. The opposed elements may include belts or rollers, which can be tilted to orientations oblique to the longitudinal direction of the fiber.

公开(公告)号：AU5680599A

公开(公告)日：2000-03-27

申请号：AU5680599

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.

公开(公告)号：CA2342339A1

公开(公告)日：2000-03-16

申请号：CA2342339

申请日：1999-08-20

Applicant: CORNING INC

Inventor： BHAGAVATULA VENKATA A ,  HAWK ROBERT M

IPC: C03B37/012 ,  G02B6/02 ,  G02B6/036 ,  G02B6/18 ,  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 metho ds of making such a waveguide fiber. This asymmetry provides additional degrees of freedom for use in forming a waveguide having particular performance characteristics.

公开(公告)号：AU3794597A

公开(公告)日：1998-11-11

申请号：AU3794597

申请日：1997-07-03

Applicant: CORNING INC

Inventor： BLASZYK PAUL E ,  CHRISTOFF WILLIAM R ,  GALLAGHER DANIEL E ,  HAWK ROBERT M ,  KIEFER WILLIAM J

IPC: G02B6/00 ,  C03B37/027 ,  C03B37/03 ,  C03B37/12 ,  C03C25/00 ,  C03C25/12 ,  C03B23/047

Abstract: Optical fiber is provided with a periodically reversing spin while the fiber is pulled through a melt zone. A cooled region of the fiber downstream from the melt zone passes between a pair of opposed elements. The opposed elements are moved so that surface regions engaging the fiber move in opposite lateral directions relative to one another, thus spinning the fiber about its axis. The lateral movement of the engaged surface portions is periodically reversed to reverse the spin direction. The opposed elements may include belts or rollers, which can be tilted to orientations oblique to the longitudinal direction of the fiber.

公开(公告)号：CA2251719A1

公开(公告)日：1997-10-30

申请号：CA2251719

申请日：1997-04-11

Applicant: CORNING INC

Inventor： HAWK ROBERT M

IPC: G02B6/04 ,  C03B37/012 ,  C03B37/027 ,  G02B6/02 ,  G02B6/036 ,  G02B6/10 ,  G02B6/16 ,  C03B37/023 ,  H04B10/18

Abstract: A single-mode elliptical core optical fiber (15) suitable for the transmission of solitons has a core aspect ratio that changes along the length of the fiber to provide a fiber dispersion that monotonically decreases along the fiber from one end thereof to the other. The fiber preform (30) is drawn from a draw blank (10) having a glass core (11) surrounded by cladding glass (12) and having apertures (13) that are diametrically opposed with respect to the core (11). The cross-sectional area of the void space within the apertures (13) varies with respect to the longitudinal distance along the apertures.

公开(公告)号：AU1961997A

公开(公告)日：1997-09-10

申请号：AU1961997

申请日：1997-02-19

Applicant: CORNING INC

Inventor： HAWK ROBERT M

IPC: C03B37/027 ,  C03B37/03 ,  C03B37/12 ,  G02B6/00 ,  C03B37/07 ,  C03B37/075

Abstract: A fiber (106) having low polarization mode dispersion is made by heating the end of a preform (100) with a furnace (101). The fiber is drawn from the heated end. The fiber passes between two rollers (102, 104). As the fiber passes therebetween, the angular tilt of each of the rollers is changed so that a spin is imparted to the fiber.

公开(公告)号：EP0907617A4

公开(公告)日：1999-09-29

申请号：EP97934884

申请日：1997-07-03

Applicant: CORNING INC

Inventor： BLASZYK PAUL E ,  CHRISTOFF WILLIAM R ,  GALLAGHER DANIEL E ,  HAWK ROBERT M ,  KIEFER WILLIAM J

IPC: G02B6/00 ,  C03B37/027 ,  C03B37/03 ,  C03B37/12 ,  C03C25/00 ,  C03C25/12 ,  C03B23/047

CPC classification number: C03B37/03 ,  C03B37/032 ,  C03B2203/36 ,  C03B2205/06 ,  C03C25/005 ,  C03C25/12

Abstract: An optical fiber (32) is drawn from a preform (22). As the fiber is being drawn, a permanent spin is imparted to it by moving one roller surface (64) relative to other surfaces (76, 78).

Abstract translation: 光纤（32）从预制件（22）中拉出。 （64）相对于其他表面（76,78）。

公开(公告)号：EP0900397A4

公开(公告)日：1999-07-14

申请号：EP97936926

申请日：1997-04-11

Applicant: CORNING INC

Inventor： HAWK ROBERT M

IPC: G02B6/04 ,  C03B37/012 ,  C03B37/027 ,  G02B6/02 ,  G02B6/036 ,  G02B6/10 ,  G02B6/16

CPC classification number: G02B6/03644 ,  C03B37/01211 ,  C03B37/01217 ,  C03B37/02709 ,  C03B37/02754 ,  C03B2203/18 ,  C03B2203/30 ,  C03B2203/31 ,  C03B2203/36 ,  C03B2205/08 ,  C03B2205/14 ,  G02B6/02247 ,  G02B6/105

Abstract: A single-mode elliptical core optical fiber (15) suitable for the transmission of solitons has a core aspect ratio that changes along the length of the fiber to provide a fiber dispersion that monotonically decreases along the fiber from one end thereof to the other. The fiber preform (30) is drawn from a draw blank (10) having a glass core (11) surrounded by cladding glass (12) and having apertures (13) that are diametrically opposed with respect to the core (11). The cross-sectional area of the void space within the apertures (13) varies with respect to the longitudinal distance along the apertures.