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公开(公告)号：DE69231884D1
公开(公告)日：2001-07-26
申请号：DE69231884
申请日：1992-12-16
Applicant: CORNING INC
Inventor： LERMINIAUX CHRISTIAN
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.
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公开(公告)号：DE69519693D1
公开(公告)日：2001-02-01
申请号：DE69519693
申请日：1995-02-20
Applicant: CORNING INC
Inventor： TROUCHET DENIS MARCEL , LERMINIAUX CHRISTIAN
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公开(公告)号：DE69411144T2
公开(公告)日：1999-03-11
申请号：DE69411144
申请日：1994-02-03
Applicant: CORNING INC
Inventor： LERMINIAUX CHRISTIAN
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.
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公开(公告)号：DE69411144D1
公开(公告)日：1998-07-23
申请号：DE69411144
申请日：1994-02-03
Applicant: CORNING INC
Inventor： LERMINIAUX CHRISTIAN
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.
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公开(公告)号：ES2113390T3
公开(公告)日：1998-05-01
申请号：ES92113320
申请日：1992-08-05
Applicant: CORNING INC
Inventor： LERMINIAUX CHRISTIAN
Abstract: A splitter is produced by ion diffusion in a glass substrate and it is designed to assure the transmission of an optical signal toward two outputs with a predetermined ratio of the signal power appearing at these 2 outputs. In accordance with the invention, it comprises an X-junction of two rectilinear waveguides defining at their intersection a half-angle alpha , the angle and the geometry of the central region being chosen in such a way as to establish the predetermined power ratio and the relative achromaticity of the device.
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Patent Agency Ranking
公开(公告)号：AU3303195A
公开(公告)日：1996-04-26
申请号：AU3303195
申请日：1995-10-04
Applicant: CORNING INC
Inventor： LERMINIAUX CHRISTIAN , TROUCHET DENIS MARCEL
Abstract: The device consists of a dual-mode waveguide 1 that has a longitudinal axis ÄXÜ, a length ÄLÜ, and a width ÄWÜ, and two pairs of monomode waveguides 2,3 and 4,5, for entry and exit, respectively. In accordance with the invention, the length ÄLÜ and the width ÄWÜ of the dual-mode waveguide Ä1Ü are selected in such a way as to establish, in this guide, light coupling that is greater in the window from 1260 to 1360 nm than in the window from 1480 to 1580 nm, so as to compensate for the significant contrary proximity coupling in these windows, as created between the monomode entry guides 2 and 3 on the one hand and the monomode exit guides 4 and 5 on the other hand. Application to the creation of a 2 x n coupler that has low insertion losses and that is achromatic within the spectral windows from 1260 to 1360 nm and from 1480 to 1580 nm.
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公开(公告)号：CA2142651A1
公开(公告)日：1995-08-19
申请号：CA2142651
申请日：1995-02-16
Applicant: CORNING INC
Inventor： TROUCHET DENIS M , LERMINIAUX CHRISTIAN
Abstract: A coupler is provided having waveguides which are arranged in two symmetrical groups in relation to the axis ¢X! of the coupler and consist of waveguide branches that are connected in a tree-like manner by n levels of Yjunctions, with at least the two output ports ¢S1! ¢S32! that are located farthest from the axis ¢X! of the coupler being fed by waveguides that have no singularities and that, between the first and the nth junction level of junctions, further consist of points of inflection located outside the junctions. The two junctions ¢44! ¢45! in the (n - 1)th level of the junctions that are located closest to the axis ¢X! of the coupler have axes of symmetry ¢X1! ¢X2! that are parallel to the axis of symmetry of the coupler, with the axis of each of these junctions defining an axis of symmetry for two junctions ¢57! ¢58! and ¢59! ¢510! in the nth junction level that are likewise parallel to the axis of the coupler, and also for the four output ports ¢S13! to ¢S16! and ¢S17! to ¢S20! that they feed.
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公开(公告)号：CA2141379A1
公开(公告)日：1995-08-05
申请号：CA2141379
申请日：1995-01-30
Applicant: CORNING INC
Inventor： LERMINIAUX CHRISTIAN
Abstract: An integrated optical proximity coupler comprises first and second parallel straight interaction waveguide segments. First and second end segments are connected to the input ends of the first and second straight waveguide segments, respectively, by means including first and second curved segments, respectively. The end segments 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 and at least part of its respective curved segment are made slightly narrower than the end segments, and the second straight segment and at least part of its respective curved segment are made slightly wider than the end segments. Thus, the required .DELTA..beta. can be obtained without making the narrow path too narrow.
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公开(公告)号：AU8176294A
公开(公告)日：1995-07-06
申请号：AU8176294
申请日：1994-12-29
Applicant: CORNING INC
Inventor： TROUCHET DENIS MARCEL , LERMINIAUX CHRISTIAN
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.
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公开(公告)号：AU660206B2
公开(公告)日：1995-06-15
申请号：AU3022492
申请日：1992-12-17
Applicant: CORNING INC
Inventor： LERMINIAUX CHRISTIAN
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.
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