公开(公告)号：AU2003284095A1

公开(公告)日：2004-05-04

申请号：AU2003284095

申请日：2003-10-10

Applicant: CORNING INC

Inventor： LI MING-JUN ,  NOLAN DANIEL A ,  BERKEY GEORGE E

IPC: G02B6/02 ,  H04B10/18

公开(公告)号：BR0008648A

公开(公告)日：2001-12-26

申请号：BR0008648

申请日：2000-03-07

Applicant: CORNING INC

Inventor： LI MING-JUN

IPC: G02B6/032 ,  G02B6/036 ,  G02B6/20 ,  G02B6/22

Abstract: Disclosed is a single mode optical waveguide fiber having a segmented core in which the central segment is a void (16). The shape and radial extent of the core segments are selected to provide a low dispersion slope together with large effective area and good bend resistance. Embodiments of the refractive index profiles in accord with the invention are shown having two or three annular segments (2, 6, 8) surrounding the central void. The presence of the void provides the benefits of a negative relative index located centrally in the core region without the process difficulties associated with the use of dopants that decrease the refractive index of the waveguide fiber.

公开(公告)号：AU736285B2

公开(公告)日：2001-07-26

申请号：AU1093399

申请日：1998-10-15

Applicant: CORNING INC

Inventor： LI MING-JUN ,  MA DAIPING ,  SMITH DAVID K ,  LIU YANMING

IPC: G02B6/02 ,  G02B6/036 ,  G02B6/22 ,  G02B6/16

Abstract: Disclosed is a single made optical waveguide fiber having a segmented core design. In particular, the core comprises three segments, each having characteristic dimensions and refractive index profile. By proper choice of index profile in each segment, a waveguide fiber is made which has a mode field diameter of about 9.5, low, positive total dispersion over the operating window 1530 nm to 1565 nm as well as effective area greater than 60 mum 2 .

公开(公告)号：CA2394599A1

公开(公告)日：2001-06-21

申请号：CA2394599

申请日：2000-10-23

Applicant: CORNING INC

Inventor： LI MING-JUN ,  SOULLIERE MARK J

IPC: H04B10/03 ,  H04B10/032 ,  H04B10/07 ,  H04B10/275 ,  H04B10/291 ,  H04J14/02 ,  H04L12/437 ,  H04Q3/52 ,  H04Q11/00 ,  H04B10/00

Abstract: An optical cross-connect system provides 4X4 switching matrices and self- healing from any single point of failure. The switching matrices route worki ng traffic and redundant protection traffic between a plurality of client netwo rk elements and an optical ring. The system also has a client interface for transporting the working traffic and the protection traffic between the switching matrices and the client network elements. The optical cross-connec t system further includes a ring interface for transporting the working traffi c and the protection traffic between the switching matrices and the optical ring. The switching matrices are structured so that protection is provided from single point failures by electrical switching at the client network element location. This significantly reduces the need for optical switching within the matrices.

公开(公告)号：AU7074700A

公开(公告)日：2001-04-30

申请号：AU7074700

申请日：2000-08-25

Applicant: CORNING INC

Inventor： LI MING-JUN

IPC: G02B6/036 ,  G02B6/16 ,  G02B6/22

Abstract: A single mode optical waveguide fiber having large effective area and low dispersion slope has a core having segments. The mode power distribution in the fiber is determined by the refractive index profile of the respective segments. The refractive index profile of each segment is characterized by a relative refractive index percent, and an inner and outer radius.

公开(公告)号：AU5122300A

公开(公告)日：2000-11-10

申请号：AU5122300

申请日：2000-03-23

Applicant: CORNING INC

Inventor： LI MING-JUN

IPC: G02B6/02 ,  G02B6/036 ,  G02B6/22 ,  G02B6/16

Abstract: Disclosed is a single mode optical waveguide fiber having a relatively large effective area and good bend resistance. The waveguide fiber is characterized by a segmented core having a central segment and at least one annular segment surrounding the central segment. At least one segment has a negative relative index where the reference index is taken as the minimum index of the core. The total dispersion of the fiber is positive for wavelengths above about 1500 nm, dispersion slope is typically less than about 0.08 ps/nm2-km, and induced attenuation under pin array bend testing is typically less than 5 dB/km.

公开(公告)号：ZA9904882B

公开(公告)日：2000-03-31

申请号：ZA9904882

申请日：1999-07-29

Applicant: CORNING INC

Inventor： LI MING-JUN ,  STONE JEFFERY SCOTT

IPC: G02B6/036 ,  H01P

CPC classification number: G02B6/03644 ,  G02B6/02014 ,  G02B6/02257 ,  G02B6/02285 ,  G02B6/0286 ,  G02B6/03611

公开(公告)号：CA2305232A1

公开(公告)日：1999-05-27

申请号：CA2305232

申请日：1998-10-15

Applicant: CORNING INC

Inventor： LIU YANMING ,  MA DAIPING ,  LI MING-JUN ,  SMITH DAVID K

IPC: G02B6/02 ,  G02B6/036 ,  G02B6/22 ,  G02B6/16

Abstract: Disclosed is a single mode optical waveguide fiber having a segmented core design. In particular, the core comprises three segments (2, 6, 8), each having characteristic dimensions and refractive index profile. By proper choice of index profile in each segment, a waveguide fiber is made which has a mode field diameter of about 9.5, low, positive total dispersion over the operating window 1530 nm to 1565 nm as well as effective area greater than 60 .mu.m2. The profile is further defined by the inner and outer profile volume and the ratio of outer to inner volume. Thus, inner volume is in the range 2.28 to 3.26 % .mu.m2, the outer profile volume is in the range 3.70 to 13.75 % .mu.m2, and the ratio of outer to inner volume is in the range 1.5 to 4.3.

公开(公告)号：CA2242989A1

公开(公告)日：1997-07-24

申请号：CA2242989

申请日：1997-01-21

Applicant: CORNING INC

Inventor： HENDERSON DANNY L ,  LI MING-JUN ,  NOLAN DANIEL A ,  WASHBURN GLENDA R

IPC: G02B6/00 ,  C03B37/027 ,  C03B37/03 ,  G02B6/02 ,  G02B6/024 ,  G02B6/16

Abstract: Disclosed are methods for reducing polarization mode dispersion (PMD) in single mode fiber by spinning the fiber during the drawing process in accordance with a spin function having sufficient harmonic content to achieve low levels of PMD for commercial fibers for which the beat lengths of the fibers, including the beat lengths of different portions of the fibers, are available and thus not readily known in advance. The spin functions disclosed take advantage of certain resonances in energy transfer between polarization modes to achieve substantial reductions in PMD for a wide range of beat lengths. Examples of suitable spin functions include frequency-modulated and amplitude-modulated sine waves.

公开(公告)号：BR112013011134A2

公开(公告)日：2016-08-02

申请号：BR112013011134

申请日：2011-11-03

Applicant: CORNING INC

Inventor： HOOVER BRETT JASON ,  LI MING-JUN

IPC: G02B6/02

Abstract: fitas de fibra óptica com múltiplos núcleos e métodos para produzir as mesmas. a invenção refere-se a fitas de fibra óptica com múltiplos núcleos e métodos para produzir as mesmas. em uma modalidade, uma fita de fibra óptica com múltiplos (100) inclui ao menos dois membros de núcleo (102) formados a partir de vidro à base de sílica e orientados em paralelo entre si em um único plano. os membros de núcleo adjacentes têm um espaçamento centro a centro 15 mícrons e uma diafonia entre os membros de núcleo adjacentes -25 db. nesta modalidade, cada membro de núcleo é monomodo com um índice de refração n~c ~, e um diâmetro de núcleo d~c ~.em uma modalidade alternativa, cada membro de núcleo é multimodo e o espaçamento centro e centro entre os membros de núcleo adjacentes é 25 mícrons. uma única camada de revestimento (104) é formada a partir de vidro à base de sílica e circunda os membros de núcleo e está em contato direto com eles. a única camada de revestimento tem seção transversal substancialmente retangular com uma espessura 400 mícrons e um índice de refração n~c1 ~