公开(公告)号：DE69629198D1

公开(公告)日：2003-08-28

申请号：DE69629198

申请日：1996-08-08

Applicant: CORNING INC

Inventor： ANTOS J ,  BHAGAVATULA A ,  CHERVENAK J ,  CHOWDHURY Q ,  NOLAN A

IPC: G02B6/024 ,  C03B37/012 ,  C03B37/014 ,  G02B6/02 ,  G02B6/028 ,  G02B6/10 ,  G02B6/00 ,  C03B37/023 ,  G02B6/16 ,  C03B37/027

Abstract: A single mode optical waveguide having reduced polarization mode dispersion and a method for making such a waveguide is disclosed. Perturbations are introduced into the waveguide core to couple power between the two polarization modes. A model calculation shows that the perturbation length may be of the order of the correlation length. The inventive waveguide is robust in that polarization mode dispersion is reduced even if perturbations are impressed on the fiber after manufacture.

公开(公告)号：DE60304841D1

公开(公告)日：2006-06-01

申请号：DE60304841

申请日：2003-02-27

Applicant: CORNING INC

Inventor： HIMMELREICH JOHN ,  SHASHIDHAR NAGARAJA ,  BHAGAVATULA A

IPC: G02B6/32 ,  G02B6/02 ,  G02B6/255 ,  G02B6/26 ,  G02B6/30 ,  G02B6/42 ,  H01S5/022

Abstract: An apparatus for altering the mode field of an optical signal is disclosed. The apparatus includes a GRIN-fiber lens and a reflective surface disposed at one end of the GRIN-fiber lens, the reflective surface configured to cooperate with the GRIN-fiber lens to redirect the path of the optical signal directed against the reflective surface. A method of manufacturing an apparatus for altering the mode field of an optical signal and an optical assembly are also disclosed.

公开(公告)号：DE60304841T2

公开(公告)日：2006-11-23

申请号：DE60304841

申请日：2003-02-27

Applicant: CORNING INC

Inventor： HIMMELREICH JOHN ,  SHASHIDHAR NAGARAJA ,  BHAGAVATULA A

IPC: G02B6/32 ,  G02B6/02 ,  G02B6/255 ,  G02B6/26 ,  G02B6/30 ,  G02B6/42 ,  H01S5/022

Abstract: An apparatus for altering the mode field of an optical signal is disclosed. The apparatus includes a GRIN-fiber lens and a reflective surface disposed at one end of the GRIN-fiber lens, the reflective surface configured to cooperate with the GRIN-fiber lens to redirect the path of the optical signal directed against the reflective surface. A method of manufacturing an apparatus for altering the mode field of an optical signal and an optical assembly are also disclosed.

公开(公告)号：DE69721046D1

公开(公告)日：2003-05-22

申请号：DE69721046

申请日：1997-12-04

Applicant: CORNING INC

Inventor： BHAGAVATULA A

IPC: G02B6/26 ,  G02B6/122 ,  G02B6/124 ,  G02B6/30 ,  G02B6/34 ,  G02B6/36

公开(公告)号：DE69721046T2

公开(公告)日：2004-03-11

申请号：DE69721046

申请日：1997-12-04

Applicant: CORNING INC

Inventor： BHAGAVATULA A

IPC: G02B6/26 ,  G02B6/122 ,  G02B6/124 ,  G02B6/30 ,  G02B6/34 ,  G02B6/36

公开(公告)号：DE69715149D1

公开(公告)日：2002-10-10

申请号：DE69715149

申请日：1997-01-06

Applicant: CORNING INC

Inventor： BHAGAVATULA A

IPC: G02B6/28 ,  G02B6/12 ,  G02B6/293 ,  G02B6/34

Abstract: Wavelength dispersion in an optical demultiplexer is accomplished by varying propagation constants of a central pathway traverse to the direction of wavefront propagation through the central pathway. The propagation constant can be varied by changing the dimensions or refractive qualities of the central pathway, which can be formed as a common waveguide or as a plurality of individual waveguides.

公开(公告)号：DE69615205D1

公开(公告)日：2001-10-18

申请号：DE69615205

申请日：1996-07-22

Applicant: CORNING INC

Inventor： ANTOS J ,  BHAGAVATULA A ,  CHOWDHURY Q ,  NOLAN A

IPC: G02B6/024 ,  C03B37/012 ,  C03B37/02 ,  G02B6/02 ,  G02B6/028 ,  G02B6/10 ,  G02B6/17 ,  G02B6/16 ,  C03B37/027

Abstract: Disclosed is a single mode optical waveguide fiber having periodic perturbations in the core to provide a birefringence which mixes the polarization modes of launched light. In addition, perturbations are introduced into the core which serve to manage total dispersion. The total dispersion of pre-selected segments of the waveguide are caused to change sign so that the sum of products, total dispersion times length, algebraically add to a pre-selected value. The two distinct core perturbation types serve to control both polarization mode dispersion and total dispersion. Methods for making the subject waveguide are also discussed.

公开(公告)号：DE60311884T2

公开(公告)日：2007-06-14

申请号：DE60311884

申请日：2003-12-12

Applicant: CORNING INC

Inventor： BHAGAVATULA A ,  HIMMELREICH JOHN ,  SHASHIDHAR NAGARAJA

IPC: G02B6/32 ,  G02B6/25 ,  G02B6/255 ,  G02B6/42

Abstract: A fiber lens includes a graded-index lens, a single-mode fiber disposed at a first end of the graded-index lens, and a refractive lens having a hyperbolic or near-hyperbolic shape disposed at a second end of the graded-index lens to focus a beam from the single-mode fiber to a diffraction-limited spot.

公开(公告)号：DE60311884D1

公开(公告)日：2007-03-29

申请号：DE60311884

申请日：2003-12-12

Applicant: CORNING INC

Inventor： BHAGAVATULA A ,  HIMMELREICH JOHN ,  SHASHIDHAR NAGARAJA

IPC: G02B6/32 ,  G02B6/25 ,  G02B6/255 ,  G02B6/42

Abstract: A fiber lens includes a graded-index lens, a single-mode fiber disposed at a first end of the graded-index lens, and a refractive lens having a hyperbolic or near-hyperbolic shape disposed at a second end of the graded-index lens to focus a beam from the single-mode fiber to a diffraction-limited spot.

公开(公告)号：DE69715149T2

公开(公告)日：2003-05-22

申请号：DE69715149

申请日：1997-01-06

Applicant: CORNING INC

Inventor： BHAGAVATULA A

IPC: G02B6/28 ,  G02B6/12 ,  G02B6/293 ,  G02B6/34

Abstract: Wavelength dispersion in an optical demultiplexer is accomplished by varying propagation constants of a central pathway traverse to the direction of wavefront propagation through the central pathway. The propagation constant can be varied by changing the dimensions or refractive qualities of the central pathway, which can be formed as a common waveguide or as a plurality of individual waveguides.