公开(公告)号：AU6131298A

公开(公告)日：1998-08-03

申请号：AU6131298

申请日：1998-01-08

Applicant: CORNING INC

Inventor： BEGUIN ALAIN ,  CAMY PATRICE ,  LABORDE PASCALE ,  LERMINIAUX CHRISTIAN

IPC: G02B6/12 ,  C03C3/095 ,  C03C4/00 ,  C03C13/04 ,  G02B6/00 ,  H01S3/063 ,  H01S3/16 ,  H01S3/17 ,  G02B6/10

公开(公告)号：FR2758321A1

公开(公告)日：1998-07-17

申请号：FR9700271

申请日：1997-01-14

Applicant: CORNING INC

Inventor： BEGUIN ALAIN ,  LABORDE PASCALE ,  CAMY PATRICE ,  LERMINIAUX CHRISTIAN

IPC: G02B6/12 ,  C03C3/095 ,  C03C4/00 ,  C03C13/04 ,  G02B6/00 ,  H01S3/063 ,  H01S3/16 ,  H01S3/17 ,  C03C3/089 ,  G02B6/10

Abstract: Phosphate free, Er/Yb co-doped borosilicate glass compositions and optical devices made from said compositions are disclosed; said compositions comprising, for 100 parts by weight of: 60 to 70 parts by weight SiO2 or SiO2 + GeO2 with SiO2 always being greater than 40 parts by weight, 8 to 12 parts by weight of B2O3, 10 to 25 parts by weight M2O wherein M2O is an alkali metal oxide, 0 to 3 parts by weight of BaO, 0.1 to 5 parts by weight Er2O3, and from 0.1 to 12 parts by weight of Yb2O3 and from 0 to less than 5 parts by weight F; and within which, the boron atoms are of tetrahedral spatial coordination.

公开(公告)号：AU681938B2

公开(公告)日：1997-09-11

申请号：AU1630295

申请日：1995-04-06

Applicant: CORNING INC

Inventor： LERMINIAUX CHRISTIAN ,  PARIS BERTRAND

IPC: G02B6/122 ,  G02B6/125 ,  G02B6/13 ,  G02B6/34 ,  G02F1/313

公开(公告)号：AU1954097A

公开(公告)日：1997-09-02

申请号：AU1954097

申请日：1997-02-04

Applicant: CORNING INC

Inventor： BORRELLI NICHOLAS F ,  LERMINIAUX CHRISTIAN ,  MASCHMEYER RICHARD O

IPC: G02B6/13 ,  G02B6/16 ,  G03G17/00

Abstract: A structure for use in forming an optical component and a method of making such a component is described. The structure comprises a non-waveguiding body of optical material having a concentration of a photorefractive-sensitive component in the body such that upon irradiation of a part of the body by a beam of actinic radiation, the refractive index of the irradiated part is increased. The method of making the optical component comprises providing a non-waveguiding body of optical material; providing a concentration of a photorefractive-sensitive component in the body; contacting the non-waveguiding body of optical material with an atmosphere comprising one of hydrogen, deuterium and mixtures thereof; and exposing a part of the non-waveguiding body of optical material to actinic radiation such that the refractive index of the exposed part is increased. Such a structure and method can be used to form symmetrical planar waveguides, optical fiber waveguides and other optical components such as gratings.

公开(公告)号：AU1145295A

公开(公告)日：1995-08-10

申请号：AU1145295

申请日：1995-01-30

Applicant: CORNING INC

Inventor： LERMINIAUX CHRISTIAN

IPC: G02B6/122 ,  G02B6/125 ,  G02F1/313 ,  G02B6/26

Abstract: An integrated optical proximity coupler comprises first and second parallel straight interaction waveguide segments (27,28). First and second curved input segments (35,34) are connected to the input ends of the straight waveguide segments (27,28), respectively. Input end segments (37,38) are coupled to the curved input segments (33,34). The end segments (37,38) are both the same predetermined size which is determined by conventional optical fibers to which they are to be connected. To make the device broad banded, one of the straight segments must be narrower than the other. To reduce device excess loss, the first straight segment (27) and at least part of its respective curved segment (33) are made slightly narrower than the end segments, and the second straight segment (28) and at least part of its respective curved segment (34) are made slightly wider than the end segments. Thus an asymmetrical directional coupler with the required DELTA beta can be obtained without making the narrow path too narrow.

公开(公告)号：CA2139055A1

公开(公告)日：1995-06-30

申请号：CA2139055

申请日：1994-12-23

Applicant: CORNING INC

Inventor： TROUCHET DENIS M ,  LERMINIAUX CHRISTIAN

IPC: G02B6/122 ,  G02B6/125 ,  H04B10/02 ,  G02B6/28 ,  G02B27/10

Abstract: The invention comprises (a) a divider (D) by 2 of the optical power received at one input (E1, E2) and (b) two groups of single mode waveguides coplanar to the divider and symmetrical relative to the axis of symmetry (Z) of the divider (D), each group being composed of waveguide sections connected in tree and branch fashion by Y junctions (J11) between one input junction (J11, J12) connected to one of the outputs of the divider and N sections of waveguide difining N outputs (S1 to S16) of the coupler parallel to the axis of the divider. According to the invention, each of these input junctions (J11, J12) has a rectilinear input branch (B1) with predetermined length such that the transverse distribution of the optical power at the output of the rectilinear input branch (B1) is centered to a large degree on the axis of this input branch.

公开(公告)号：FR2685786B1

公开(公告)日：1994-12-30

申请号：FR9116240

申请日：1991-12-27

Applicant: CORNING INC

Inventor： LERMINIAUX CHRISTIAN

IPC: G02B6/122 ,  G02B6/12 ,  G02B6/125 ,  G02B6/34 ,  G02B6/26 ,  H04B10/12

Abstract: The coupler comprises two waveguides imbedded in a substrate and exhibiting a coupling region of length L establishing coupling coefficients (C1) and (C2) for the signals of the wavelengths ( lambda 1) and ( lambda 2) respectively. Following the invention, the length (L) and the coefficients (C1) and (C2) are linked by the relationship: C1.L=n pi DIVIDED 2 and C2.L=m pi DIVIDED 2 where n and m are integers, one uneven and the other even, chosen in such a manner as to establish a pass band of predetermined width (BP1, BP2) around at least one of the wavelengths ( lambda 1) and ( lambda 2). Application to multiplexers/demultiplexers for optical fiber telecommunications.

公开(公告)号：CA2085928A1

公开(公告)日：1993-06-28

申请号：CA2085928

申请日：1992-12-21

Applicant: CORNING INC

Inventor： LERMINIAUX CHRISTIAN

IPC: G02B6/122 ,  G02B6/12 ,  G02B6/125 ,  G02B6/34 ,  G02B6/26 ,  G02B27/10

Abstract: The coupler comprises two waveguides imbedded in a substrate and exhibiting a coupling region of length L establishing coupling coefficients (C1) and (C2) for the signals of the wavelengths (.lambda.1) and (.lambda.2) respectively. Following the invention, the length (L) and the coefficients (C1) and (C2) are linked by the relationship: where n and m are integers, one uneven and the other even, chosen in such a manner as to establish a pass band of predetermined width (BP1, BP2) around at least one of the wavelengths (.lambda.1) and (.lambda.2). Application to multiplexers/demultiplexers for optical fiber telecommunications.

公开(公告)号：AU682740B2

公开(公告)日：1997-10-16

申请号：AU1229295

申请日：1995-02-16

Applicant: CORNING INC

Inventor： TROUCHET DENIS MARCEL ,  LERMINIAUX CHRISTIAN

IPC: G02B6/122 ,  G02B6/12 ,  G02B6/125 ,  G02B6/28 ,  H04B10/02

公开(公告)号：AU674467B2

公开(公告)日：1996-12-19

申请号：AU8176294

申请日：1994-12-29

Applicant: CORNING INC

Inventor： TROUCHET DENIS MARCEL ,  LERMINIAUX CHRISTIAN

IPC: G02B6/122 ,  G02B6/125 ,  H04B10/02

Abstract: The acrhromatic 2x2N coupler of the invention comprises (a) a divider (D) by 2 of the optical power received at one of the two inputs (E1,E2) and (b) two groups of single mode waveguides coplanar to the divider and symmetrical relative to the axis of symmetry (Z) of the divider (D), each group being composed of waveguide sections connected in tree and branch fashion by Y junctions (Jii) between one input junction (J11,J12) connected to on e of the outputs of the divider and N sections of waveguide defining N outputs (S1 to S16) of the coupler parallel to the axis of the divider. According to the invention, each of these input junctions (J11,J12) has a rectilinear input br anch (B1) with predetermined length such that the transverse distribution of the optical power at the output of the rectilinear input branch (B1) is centered to a large degree on the axis of this input branch.