WO2003046627A1 - Dispositif de multiplexage d'une matrice de voies optiques, application au multiplexage en longueur d'onde et a l'insertion-extraction - Google Patents
Dispositif de multiplexage d'une matrice de voies optiques, application au multiplexage en longueur d'onde et a l'insertion-extraction Download PDFInfo
- Publication number
- WO2003046627A1 WO2003046627A1 PCT/FR2002/004069 FR0204069W WO03046627A1 WO 2003046627 A1 WO2003046627 A1 WO 2003046627A1 FR 0204069 W FR0204069 W FR 0204069W WO 03046627 A1 WO03046627 A1 WO 03046627A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- optical
- channels
- multiplexing
- signals
- optically coupled
- Prior art date
Links
- 230000003287 optical effect Effects 0.000 title claims abstract description 78
- 230000008878 coupling Effects 0.000 claims abstract description 8
- 238000010168 coupling process Methods 0.000 claims abstract description 8
- 238000005859 coupling reaction Methods 0.000 claims abstract description 8
- 230000000295 complement effect Effects 0.000 claims abstract description 5
- 239000013307 optical fiber Substances 0.000 claims description 32
- 239000011159 matrix material Substances 0.000 claims description 25
- 238000000605 extraction Methods 0.000 claims description 10
- 238000001514 detection method Methods 0.000 claims description 5
- 238000000034 method Methods 0.000 description 8
- 238000004519 manufacturing process Methods 0.000 description 6
- 230000005540 biological transmission Effects 0.000 description 5
- 239000000835 fiber Substances 0.000 description 5
- 239000000758 substrate Substances 0.000 description 5
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 3
- 230000004927 fusion Effects 0.000 description 3
- 229910052710 silicon Inorganic materials 0.000 description 3
- 239000010703 silicon Substances 0.000 description 3
- 229910000679 solder Inorganic materials 0.000 description 3
- 230000001902 propagating effect Effects 0.000 description 2
- 241000143252 Idaea infirmaria Species 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000023077 detection of light stimulus Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000005693 optoelectronics Effects 0.000 description 1
- 230000037361 pathway Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/26—Optical coupling means
- G02B6/28—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals
- G02B6/2804—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals forming multipart couplers without wavelength selective elements, e.g. "T" couplers, star couplers
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/42—Coupling light guides with opto-electronic elements
- G02B6/4201—Packages, e.g. shape, construction, internal or external details
- G02B6/4246—Bidirectionally operating package structures
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J14/00—Optical multiplex systems
- H04J14/02—Wavelength-division multiplex systems
- H04J14/0201—Add-and-drop multiplexing
Definitions
- the present invention relates to a device for multiplexing an array of optical channels.
- wavelength division multiplexing devices wavelength division multiplexing devices
- insertion-extraction devices in English “add-drop devices”
- the invention applies to the field of opto-electronic assembly.
- Figure 1 is a schematic view of a known device for multiplexing several optical signals.
- This known device comprises a silicon substrate 2 in which V-shaped grooves are formed.
- optical fibers 4 In these grooves are fixed the ends of optical fibers 4.
- the optical signals that we want to multiplex propagate in these optical fibers.
- the device of FIG. 1 further comprises a coupling plane optical waveguide 6 comprising as many inputs as there are optical fibers as well as an output. These inputs are respectively optically coupled to the ends of the optical fibers which are fixed in the grooves of the silicon substrate.
- This plane optical waveguide 6 makes it possible to multiplex the optical signals which propagate in the fibers, these signals thus being found at the output of the plane optical waveguide.
- the device of FIG. 1 further comprises another silicon substrate 8 provided with a V-groove in which the end of another optical fiber 10 is fixed. This end is optically coupled to the output of the waveguide optical plane so that the optical signals which have been multiplexed by the optical optical waveguide 6 propagate in the output optical fiber 10.
- the known multiplexing techniques are very complex to implement.
- the fusion technique mentioned above makes it possible to couple by example an array of light detectors with an optical fiber but the size of the device obtained is important because this device uses a series link of a pair of optical fibers, each of these being coupled to an input transmitter.
- planar optical waveguide does not allow a matrix of light emitters to be coupled into an optical waveguide without using a set of optical fibers. This technique only allows coupling in the plane of the multiplexing optical waveguide.
- the object of the present invention is to remedy the above drawbacks.
- the present invention makes it possible to multiplex optical channels arranged in a matrix by means of a device whose size is extremely reduced.
- the invention makes it possible to couple and multiplex the light beams emitted by a matrix of lasers (for example a matrix of VCSEL or lasers with emission by the surface with vertical cavity) with a single optical fiber, by a technique not making use of intermediate optical fibers.
- a matrix of lasers for example a matrix of VCSEL or lasers with emission by the surface with vertical cavity
- the device which is the subject of the invention is much simpler to manufacture than the device of the Figure 1 and that the devices known from the document
- the invention has the advantage of making it possible to easily couple a matrix of light detectors and an optical fiber, with a much smaller footprint than the fusion technique mentioned above.
- the invention makes it possible both to eliminate the presence of optical fibers between the matrix of light emitters and the output optical fiber and to use only optical circuits formed by planar optical waveguides for multiplexing the signals. input optics.
- the subject of the present invention is a device for multiplexing a matrix of M x N optical channels to at least one channel, M and N being whole numbers greater than 1 (M> 1 and N> 1), this device being characterized in that it comprises:
- N flat optical waveguides each of these being able to multiplex M channels to 1 channel, all of the N waveguides being thus able to multiplex M x N channels to N first channels, and
- a complementary plane optical waveguide capable of multiplexing N second channels to at least one coupling channel, these N second channels being respectively optically coupled to the N first channels.
- the N planar optical waveguides are juxtaposed, the N first channels are aligned and the planar optical waveguide complementary is perpendicular to the N juxtaposed planar optical waveguides.
- this device further comprises a matrix of M x N light emitters and / or detectors which are optically coupled to the
- the M x N light emitters and / or detectors may include lasers. These lasers are for example VCSEL (vertical cavity and surface emission lasers).
- this device also comprises at least one flexible optical waveguide which is optically coupled to the coupling path of the device.
- This flexible optical waveguide can be an optical fiber.
- the invention also relates to a wavelength multiplexing device comprising a multiplexing device according to the invention.
- the invention further relates to an insertion-extraction device comprising:
- an input device intended to receive optical input signals and comprising a first multiplexing device according to the invention as well as an array of light detectors which are optically coupled to the channels of the first device multiplexing, to convert the input optical signals into electrical signals, in order to extract from the latter at least one electrical signal, and
- an output device comprising a second multiplexing device according to the invention as well as a matrix of light emitters which are optically coupled to the channels of the second multiplexing device to convert the non-extracted electrical signals into optical output signals and inserting into these optical output signals at least one optical signal.
- FIG. 1 is a schematic view of a known multiplexing device and has already been described
- - Figure 2 is a schematic exploded perspective view of a particular embodiment of the multiplexing device object of the invention
- - Figure 3 is a schematic view of an insertion-extraction device using the present invention .
- the device according to the invention which is shown diagrammatically in exploded perspective in FIG. 2, comprises an array of MxN lasers, preferably an array of MxN VCSEL, which emit at different wavelengths.
- This matrix includes M rows and N columns, with M> 1 and N> 1.
- the device also includes a set of N planar optical waveguides 16 juxtaposed. Each of these planar waveguides comprises M planar guides allowing planar multiplexing of M inputs 20 to an output 22.
- the N plane optical waveguides 16 are aligned and stacked so that each of the MxN inputs 20 of all of these plane optical waveguides 16 is optically aligned with one of the light emitting lasers 14 to be optically coupled with this laser.
- the device of FIG. 2 is constructed in such a way that the N outputs 22 of the set of N planar optical waveguides 16 are aligned with one another, with a perfectly known spacing from one another. .
- the device of FIG. 2 further comprises another planar optical waveguide 24 which comprises N planar guides 26 allowing a planar multiplexing of N inputs 28 towards an output 30.
- This other planar optical waveguide 24 is arranged perpendicular to the waveguides 16 and constructed in such a way that these N inputs 28 are perfectly aligned with the N aligned outputs 22 of the N optical waveguides planes 16 to be optically coupled with these outputs.
- the device of Figure 2 also comprises a flexible output optical waveguide which is • for example an optical fiber 32.
- One end of this fiber 32 is optically coupled to the output 30 of the planar optical waveguide 24 so as to recover the optical signal which is supplied by this output 30 and results from the multiplexing of the optical signals supplied by the lasers 14.
- the device of FIG. 2 therefore makes it possible to couple several plane optical waveguides parallel to one another so as to have aligned optical outputs and to multiplex the line created with another plane optical waveguide, placed perpendicularly ' to the first.
- the matrix 12 of the light emitting lasers 14 can be replaced by a matrix of photodetectors 34.
- the device of FIG. 2 makes it possible to send a light propagating in the optical fiber 32 to these photodetectors 34 via the plane optical waveguide 24 and the plane optical waveguides 16 of the stack (in accordance with the principle of reverse light return) and the references 22 and 30 in FIG. 2 correspond to inputs while the references 20 and 28 correspond to outputs.
- the matrix 12 can be a set of light transceivers making it possible both to receive propagating light signals in the optical fiber 32 and to send optical signals therein which are multiplexed using the device in FIG. 2.
- the plane optical waveguide 24 can have two or more than two outputs.
- the plane optical waveguide 24 can have two or more than two outputs.
- many flexible optical waveguides are used as there are outputs and one end of each flexible optical waveguide is optically coupled to one of these outputs.
- a multiplexing device is then produced in accordance with the invention.
- CMOS integrated circuit with a hybridized multi-frequency VCSEL matrix.
- This multi-frequency VCSEL matrix is manufactured, for example according to the technique which is disclosed in the document (2) mentioned above, in the form of a VCSEL matrix whose cavity length is variable.
- the pitch between these VCSELs is 250 ⁇ m
- the frequency spacing is 50GHz (0.4mn)
- the size of the transmission circuit is approximately 3mm x 3mm.
- optical integrated circuit Only one type of optical integrated circuit is used for multiplexing, namely a "8 to 1" planar multiplexing circuit with a 250 ⁇ m pitch. 8 optical circuits of this kind are stacked with a 250 ⁇ pitch between the planes of these circuits and the block thus obtained is aligned and then fixed to the light emission matrix. In addition, an optical circuit of the same kind is aligned with the 8 outputs of the block, in steps of 250 ⁇ m, then this' circuit is fixed to this block.
- An optical fiber is then aligned and then fixed relative to the output of this circuit.
- planar multiplexing optical waveguides of the "M to 1" type, on glass substrates .
- a micrometer check near the cutouts of these waveguides provides waveguides of perfectly controlled dimensions.
- N of these edge-to-edge waveguides makes it possible to align them mechanically and fix them to make a multiplexing block of the "M x N to N" type. It is also possible to manufacture another block of the same external dimensions, comprising a plane optical waveguide of the "N to 1" type, then align and fix the two blocks mechanically edge to edge in order to obtain a device in accordance with the invention.
- This device comprises an integrated control circuit 36 intended to process and. amplifying the various electrical signals generated in the device, a part 38 for demultiplexing optical signals and a part 40 for multiplexing optical signals.
- the demultiplexing part 38 comprises an input optical fiber which transmits optical signals 44 having different wavelengths ⁇ l, ⁇ 2 ... ⁇ n, a demultiplexing block 46 and a multispectral detection circuit 48.
- the demultiplexing block 46 is optically coupled, on one side, to the input optical fiber 42 and, on the other side, to the multispectral detection circuit 48.
- the latter is also electrically connected to the integrated control circuit 36 by means of solder balls (in English "solder balls").
- the multiplexing part 40 comprises an output optical fiber 50 intended to transmit optical signals 52 having the different wavelengths ⁇ l, ⁇ 2 ... ⁇ n, a multiplexing block 54 and a multispectral transmission circuit 56.
- the block multiplexer 54 is optically coupled, on one side, to the output optical fiber 52 and, on the other side, to the multispectral transmission circuit 56. The latter is also electrically connected to the integrated control circuit 36 by the solder balls.
- the demultiplexing block 46 and the multiplexing block 54 are devices according to the invention, which are constituted as explained in the description of FIG. 2 and thus comprise an assembly of planar optical waveguides having, on one side, an entry or exit channel and, on the other side, a set of exit or entry channels.
- the demultiplexing block 46 comprises, on one side, an input channel which is optically coupled to the input optical fiber 42 and, on the other side, a set of output channels which are optically coupled to the photodetectors that the multispectral detection circuit 48 includes.
- the multiplexing block comprises, on one side, an output channel which is optically coupled to the output optical fiber 50 and, on the other side, a set of input channels which are optically coupled to the photoemitters of the multispectral emission circuit 56.
- This multispectral detection circuit 48 comprises a matrix of photodetectors with cavities of lengths d 'variable waves. On this subject, we will consult for example the document (2) already mentioned above.
- the composite input signal formed by all of the signals 44 is broken down into its different wavelengths thanks to the circuit 48 and it is then possible to choose the demodulated signal or signals which it is wished to extract, for example the signal 58 corresponding to the wavelength ⁇ l.
- the integrated control circuit 36 which we want to keep and which correspond to the wavelengths ⁇ 2 ... ⁇ n, are sent, via the integrated control circuit 36, to the multispectral transmission circuit 56.
- the signal that the we want to add instead of the extracted signal is also sent (in electrical form) to the transmitter having the chosen wavelength, ⁇ l in the example considered.
- the multispectral transmission circuit 56 comprises a matrix of photoemitters with cavities of variable wavelengths
- the demodulated and amplified electrical signals that we want to keep are sent to this matrix of transmitters.
- the recomposed optical signal is directed to the output optical fiber 50.
- This fiber 50 can be part of a ring network (in English "ring network") along which there are other insertion-extraction devices.
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Optical Couplings Of Light Guides (AREA)
- Optical Integrated Circuits (AREA)
- Optical Communication System (AREA)
Abstract
Description
Claims
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2003548010A JP2005510754A (ja) | 2001-11-29 | 2002-11-27 | 光学チャネルマトリクスのための分割多重デバイスならびに波長分割多重技術やアッドドロップ技術に対する応用 |
| EP02803839A EP1459118A1 (fr) | 2001-11-29 | 2002-11-27 | Dispositif de multiplexage d'une matrice de voies optiques, application au multiplexage en longueur d'onde et a l'insertion-extraction |
| US10/496,354 US20050074203A1 (en) | 2001-11-29 | 2002-11-27 | Device for multiplexing an array of optical channels, use for wavelength and add-drop multiplexing |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR0115440A FR2832812B1 (fr) | 2001-11-29 | 2001-11-29 | Dispositif de multiplexage d'une matrice de canaux optiques, application au multiplexage en longueur d'onde et a l'insertion-extraction |
| FR01/15440 | 2001-11-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2003046627A1 true WO2003046627A1 (fr) | 2003-06-05 |
Family
ID=8869916
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/FR2002/004069 WO2003046627A1 (fr) | 2001-11-29 | 2002-11-27 | Dispositif de multiplexage d'une matrice de voies optiques, application au multiplexage en longueur d'onde et a l'insertion-extraction |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20050074203A1 (fr) |
| EP (1) | EP1459118A1 (fr) |
| JP (1) | JP2005510754A (fr) |
| FR (1) | FR2832812B1 (fr) |
| WO (1) | WO2003046627A1 (fr) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11269152B2 (en) | 2019-09-18 | 2022-03-08 | Corning Research & Development Corporation | Structured fiber optic cabling system including adapter modules and orthogonally arranged jumper assemblies |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050175345A1 (en) * | 2004-01-26 | 2005-08-11 | Mikihiro Shimada | Wavelength multiplexing device and optical transmission module provided with the same |
| US7636507B2 (en) * | 2005-06-17 | 2009-12-22 | Adc Telecommunications, Inc. | Compact blind mateable optical splitter |
| US7916988B2 (en) * | 2006-12-22 | 2011-03-29 | Verizon Services Corp. | Optical splitter assembly |
| WO2011149474A1 (fr) * | 2010-05-28 | 2011-12-01 | Hewlett-Packard Development Company, L.P. | Diviseur de puissance de guide d'ondes matriciel |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3218193A1 (de) * | 1982-05-14 | 1984-02-02 | ANT Nachrichtentechnik GmbH, 7150 Backnang | Opto-elektronische schaltmatrix |
| US4943136A (en) * | 1988-12-09 | 1990-07-24 | The Boeing Company | Optical backplane interconnection |
| EP0457974A1 (fr) * | 1989-05-12 | 1991-11-27 | AT&T Corp. | Dispositif d'interconnexion optique |
| US5185824A (en) * | 1991-10-29 | 1993-02-09 | At&T Bell Laboratories | Optical switch incorporating molded optical waveguide elements |
| EP0668515A1 (fr) * | 1994-02-18 | 1995-08-23 | Corning Incorporated | Coupler optique intégré avec une porte d'entrée et 2n portes de sorties |
| US5671304A (en) * | 1995-12-21 | 1997-09-23 | Universite Laval | Two-dimensional optoelectronic tune-switch |
| WO1998031184A1 (fr) * | 1997-01-07 | 1998-07-16 | Tellium, Inc. | Element d'interconnexion hybride assurant la permutation de longueurs d'onde |
| EP1052868A2 (fr) * | 1999-05-13 | 2000-11-15 | Lucent Technologies Inc. | Dispositif de routage utilisant l'espace libre et un réseau matrice de guide d'ondes |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2718013B2 (ja) * | 1989-01-12 | 1998-02-25 | 住友電気工業株式会社 | 光ファイバ配線装置 |
| CN1060572C (zh) * | 1996-11-13 | 2001-01-10 | 陈祖培 | 熔锥型高密度波分复用器 |
| US6154587A (en) * | 1997-03-21 | 2000-11-28 | Oki Electric Industry Co., Ltd. | Optical cross connector apparatus |
| EP1098219A4 (fr) * | 1998-07-01 | 2005-02-09 | Nec Corp | Commutateur optique matriciel et multiplexeur optique a insertion-extraction |
| US6591033B2 (en) * | 2000-11-06 | 2003-07-08 | Jack Gershfeld | Optical matrix switcher |
| US6778739B1 (en) * | 2001-07-05 | 2004-08-17 | Calient Networks | Wavelength selective optical switch with aligned input and output substrates |
-
2001
- 2001-11-29 FR FR0115440A patent/FR2832812B1/fr not_active Expired - Fee Related
-
2002
- 2002-11-27 EP EP02803839A patent/EP1459118A1/fr not_active Ceased
- 2002-11-27 WO PCT/FR2002/004069 patent/WO2003046627A1/fr not_active Application Discontinuation
- 2002-11-27 US US10/496,354 patent/US20050074203A1/en not_active Abandoned
- 2002-11-27 JP JP2003548010A patent/JP2005510754A/ja not_active Withdrawn
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3218193A1 (de) * | 1982-05-14 | 1984-02-02 | ANT Nachrichtentechnik GmbH, 7150 Backnang | Opto-elektronische schaltmatrix |
| US4943136A (en) * | 1988-12-09 | 1990-07-24 | The Boeing Company | Optical backplane interconnection |
| EP0457974A1 (fr) * | 1989-05-12 | 1991-11-27 | AT&T Corp. | Dispositif d'interconnexion optique |
| US5185824A (en) * | 1991-10-29 | 1993-02-09 | At&T Bell Laboratories | Optical switch incorporating molded optical waveguide elements |
| EP0668515A1 (fr) * | 1994-02-18 | 1995-08-23 | Corning Incorporated | Coupler optique intégré avec une porte d'entrée et 2n portes de sorties |
| US5671304A (en) * | 1995-12-21 | 1997-09-23 | Universite Laval | Two-dimensional optoelectronic tune-switch |
| WO1998031184A1 (fr) * | 1997-01-07 | 1998-07-16 | Tellium, Inc. | Element d'interconnexion hybride assurant la permutation de longueurs d'onde |
| EP1052868A2 (fr) * | 1999-05-13 | 2000-11-15 | Lucent Technologies Inc. | Dispositif de routage utilisant l'espace libre et un réseau matrice de guide d'ondes |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11269152B2 (en) | 2019-09-18 | 2022-03-08 | Corning Research & Development Corporation | Structured fiber optic cabling system including adapter modules and orthogonally arranged jumper assemblies |
| US11740424B2 (en) | 2019-09-18 | 2023-08-29 | Corning Research & Development Corporation | Structured fiber optic cabling system including an array of ports and orthogonally arranged jumper assemblies |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2005510754A (ja) | 2005-04-21 |
| FR2832812B1 (fr) | 2004-01-23 |
| US20050074203A1 (en) | 2005-04-07 |
| FR2832812A1 (fr) | 2003-05-30 |
| EP1459118A1 (fr) | 2004-09-22 |
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