WO2002065161A2 - Dispositif d'actionnement d'une partie mobile d'une structure integree, en particulier munie de moyens de guidage optique - Google Patents
Dispositif d'actionnement d'une partie mobile d'une structure integree, en particulier munie de moyens de guidage optique Download PDFInfo
- Publication number
- WO2002065161A2 WO2002065161A2 PCT/FR2002/000500 FR0200500W WO02065161A2 WO 2002065161 A2 WO2002065161 A2 WO 2002065161A2 FR 0200500 W FR0200500 W FR 0200500W WO 02065161 A2 WO02065161 A2 WO 02065161A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- electrodes
- faces
- pairs
- fixed part
- mobile part
- Prior art date
Links
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
- G02B6/35—Optical coupling means having switching means
- G02B6/3502—Optical coupling means having switching means involving direct waveguide displacement, e.g. cantilever type waveguide displacement involving waveguide bending, or displacing an interposed waveguide between stationary waveguides
- G02B6/3504—Rotating, tilting or pivoting the waveguides, or with the waveguides describing a curved path
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B26/00—Optical devices or arrangements for the control of light using movable or deformable optical elements
- G02B26/02—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the intensity of light
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B26/00—Optical devices or arrangements for the control of light using movable or deformable optical elements
- G02B26/08—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light
Definitions
- the present invention relates to the field of integrated structures, in particular integrated structures provided with optical guidance means for the purpose of transporting optical or light waves.
- Patent FR-A-90 03 902 describes integrated optical switches in which a structure has a flexible beam, which carries an optical micro-guide longitudinally, is capable of being deformed in order to selectively bring the axis of the core of the microphone -guide of the beam in coincidence with the axis of fixed micro-guides of the structure, via a space separating the end surface of the beam and a fixed surface of the structure.
- patent FR-A-95 00 201 describes switches in which the aforementioned flexible beam is replaced by a platform carried by arms and moving in translation.
- the object of the present invention is in particular to propose a device for actuating a movable part of an integrated structure, capable of acting in a precise, efficient manner and without disturbance.
- the present invention relates in particular to a device for actuating a mobile part of an integrated structure, in particular provided with optical guide means, comprising two spaces arranged successively in the direction of movement of said mobile part and delimited by faces of the movable part and of the fixed part of said structure, the faces delimiting each space belonging one to the fixed part and the other to the movable part of the structure and said faces comprising an electrically conductive material so as to constitute, in each space, pairs of electrodes.
- this actuation device comprises a control device adapted to selectively connect the electrodes of one of said pairs of electrodes to the poles of an electrical energy source and electrically connect the electrodes of the another pair of electrodes.
- the mobile part comprises a branch provided on either side with electrodes and engaged between two faces of the fixed part provided with electrodes.
- the fixed part comprises a branch provided on either side with electrodes and engaged between two faces of the movable part provided with electrodes.
- the distance between the electrodes of one of said pairs of electrodes is preferably equal to the distance between the electrodes of the other pair of electrodes.
- control device preferably comprises electrical switches with two positions and a control member for simultaneously switching these switches.
- FIG. 1 shows a horizontal section of a transmission device provided with an actuating device according to the present invention
- FIG. 3 shows an electrical control diagram of the above actuation device
- FIG. 4 shows a cross section of the aforementioned transmission device, according to IV-IV of Figure 1; - And Figure 5 shows an enlarged horizontal section of an alternative embodiment of the actuating device.
- the device 1 for transmitting a light wave shown comprises an integrated structure 2 for optical guidance constituted by a block which comprises integrated optical micro-guides.
- the integrated structure 2 comprises a fixed part 2a having a cavity 3 in which extends, in cantilever, a mobile part constituted by a flexible longitudinal beam 4, this beam 4 extending from a wall 5 vertical and transverse of this cavity 3 and in the direction of a coupling face 6 vertical and transverse of the cavity 3.
- the transverse end surface 7 of the beam 4, which constitutes a coupling face, extends at a short distance of the transverse plane of the coupling face 6 of the cavity 3, forming a coupling space 8 between these coupling faces 6 and 7.
- the integrated structure 2 comprises a longitudinal transmission core 9a of an optical micro-guide 9 which extends on the side of the wall 5 of the cavity 3 and which extends along the beam 4 to its coupling face 7.
- the fixed part 2a of the integrated structure 2 also comprises, on the side of the coupling face 6, a longitudinal transmission core 10a of a fixed optical micro-guide 10 and a longitudinal transmission core 11a of an optical mircoguide fixed 11.
- These transmission cores 10a and 11a are arranged on either side of the longitudinal direction of the transmission core 9a carried by the beam 4 when the latter is in its rest position.
- the end of its mobile transmission core 10a, on the coupling face 7 can be optically coupled with the end of the fixed transmission core 10a or the end of the fixed transmission core 11a, on the coupling face 6 of the fixed part 2a, through the coupling space 8.
- An optical switch is thus obtained.
- the flexible beam 4 is provided with an actuating device
- the flexible beam 4 has, in the cavity 3, a lateral arm 13 which extends perpendicular to its longitudinal direction.
- This arm 13 carries, on either side, a longitudinal branch 14 which is engaged, at a distance, between two longitudinal and vertical faces 15 and 16 of the fixed part 2a formed in the cavity 3, so that respectively between the longitudinal and vertical faces 18 and 19 of the branch 14 connected to the beam 4 and the faces 15 and 16 of the fixed part
- the face 15 of the fixed part 2a and the face 18 of the branch 14 are covered with metal layers so as to constitute electrodes 22 and 23 of a first pair of electrodes.
- the face 19 of the branch 14a and the face 15 of the fixed part 2a are covered with metal layers so as to constitute electrodes 24 and 25 of a second pair of electrodes.
- the distance separating the electrodes 22 and 23 from the first pair of electrodes and the distance separating the electrodes 24 and 25 from the second pair of electrodes are equal.
- the electrodes 22-25 are connected to a control device 26 which comprises four electrical switches 27-30, in particular electromechanical or electronic, which for example have switching members
- the electrodes 22-25 are respectively connected to the input / output pads 27a-30a.
- the switching pads 27b and 30c are connected to the pole (+) of an electrical energy source 36.
- the pads 28b and 29c are connected to the pole (-) of this source 36.
- the pads 27c and 28c are interconnected and the pads 29b and 30b are interconnected.
- the poles of the electrical source 36 could be connected symmetrically.
- the switching members 31-34 are in their aforementioned first position, on the one hand the electrodes 22 and 23 of the first pair of electrodes are connected to the poles of the electric source 36 to produce an attractive force between they and on the other hand the electrodes 24 and 25 of the second pair of electrodes are connected together and produce no disturbing force.
- the electrodes 22 and 23 of the first pair of electrodes are connected to the poles of the electric source 36 to produce an attractive force between they and on the other hand the electrodes 24 and 25 of the second pair of electrodes are connected together and produce no disturbing force.
- the switching members 31-34 When the switching members 31-34 are in their aforementioned second position, on the one hand the electrodes 22 and 23 of the first pair of electrodes are connected to one another and produce no disturbing force and on the other hand the electrodes 24 and 25 of the second pair of electrodes are connected to the poles of the electric source 36 to produce an attractive force between them.
- the integrated structure 2a comprises a base layer 37 on which a lower layer 38 is formed then an upper layer 39, the transmission cores 9a, 10a and lia being formed on the lower layer 38 and in the upper layer 39.
- the cavity 3 is hollowed out so that the flexible beam 4, the arm 13 and the branch 14 are formed by parts of the layers 21 and 22.
- the cavity 3 is also covered by a cover 23.
- the refractive index of the material constituting the transmission cores 9a, 10a and 11a is greater than the refractive index of the material or materials constituting the layers 38 and 39.
- the base layer 37 is constituted by a silicon substrate, the layers 38 and 39 are made of undoped silica and the transmission cores 9a, 10a and 11a are made of doped silica, of silicon nitride or of silicon oxynitride.
- the transmission cores 9a, 10a and 11a of the optical micro-guides 9, 10 and 11 are of rectangular or square section and have sides of dimensions between five and fourteen microns.
- the distance between the fixed transmission cores 10a and 11a can be between thirty microns and sixty microns.
- the metal layers constituting the electrodes 22-25 can be made of aluminum or gold.
- the integrated structure 2 can be provided, in a manner known per se, with connection tracks and / or wired connection bridges to connection pads.
- the arm 13 could carry at least two branches 14a and 14b spaced apart in the direction of movement of the flexible beam 4 and provided on their faces in opposite directions.
- opposite electrodes 22a and 25a, corresponding to electrodes 22 and 25 of the previous example, and the fixed part 2a could have a fixed branch 37 carrying on either side electrodes 23a and 24a, corresponding to electrodes 23 and 24 from the previous example.
- the actuation device 12 which has just been described in a simplified manner could be completed so as to adapt the force necessary for actuation by bending of the flexible beam 4.
- the arm 13 carried by the flexible beam 4 could indeed be provided with other branches 14 located on the same side or opposite, associated with other faces 15 and 16 of the fixed part 2a of the integrated structure 2, so as to produce other pairs of pairs of electrodes 23, 23 and 24, 25, connected in parallel to the electrical switches 27-30.
- the actuating device 12 could moreover be associated with a platform with displacement by translation replacing the flexible beam 4.
- the present invention is not limited to the example described above. Many variations are possible without departing from the scope defined by the appended claims.
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU2002241010A AU2002241010A1 (en) | 2001-02-12 | 2002-02-08 | Device for actuating a mobile part of an integrated structure, in particular provided with optical guide means |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR01/01874 | 2001-02-12 | ||
FR0101874A FR2820832B1 (fr) | 2001-02-12 | 2001-02-12 | Dispositif d'actionnement d'une partie mobile d'une structure integree, en particulier munie de moyens de guidage optique |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2002065161A2 true WO2002065161A2 (fr) | 2002-08-22 |
WO2002065161A3 WO2002065161A3 (fr) | 2003-03-13 |
Family
ID=8859899
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FR2002/000500 WO2002065161A2 (fr) | 2001-02-12 | 2002-02-08 | Dispositif d'actionnement d'une partie mobile d'une structure integree, en particulier munie de moyens de guidage optique |
Country Status (3)
Country | Link |
---|---|
AU (1) | AU2002241010A1 (fr) |
FR (1) | FR2820832B1 (fr) |
WO (1) | WO2002065161A2 (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1346947A3 (fr) * | 2002-03-19 | 2004-04-14 | Japan Aviation Electronics Industry, Limited | Dispositifs d'attenuation ou commutation optique contrôlés électrostatiquement |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1598334A (en) * | 1977-12-13 | 1981-09-16 | Standard Telephones Cables Ltd | Switch arrangement |
FR2725038A1 (fr) * | 1994-09-27 | 1996-03-29 | Dassault Automatismes | Commutateur optique integre bidirectionnel destine a commuter le faisceau lumineux d'une fibre optique |
EP0712004A1 (fr) * | 1994-11-10 | 1996-05-15 | Commissariat A L'energie Atomique | Dispositif de compensation des déformations d'une partie d'un système optomécanique ou micromécanique |
FR2729232A1 (fr) * | 1995-01-10 | 1996-07-12 | Commissariat Energie Atomique | Dispositif optique pour application optomecanique |
-
2001
- 2001-02-12 FR FR0101874A patent/FR2820832B1/fr not_active Expired - Lifetime
-
2002
- 2002-02-08 WO PCT/FR2002/000500 patent/WO2002065161A2/fr not_active Application Discontinuation
- 2002-02-08 AU AU2002241010A patent/AU2002241010A1/en not_active Abandoned
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1598334A (en) * | 1977-12-13 | 1981-09-16 | Standard Telephones Cables Ltd | Switch arrangement |
FR2725038A1 (fr) * | 1994-09-27 | 1996-03-29 | Dassault Automatismes | Commutateur optique integre bidirectionnel destine a commuter le faisceau lumineux d'une fibre optique |
EP0712004A1 (fr) * | 1994-11-10 | 1996-05-15 | Commissariat A L'energie Atomique | Dispositif de compensation des déformations d'une partie d'un système optomécanique ou micromécanique |
FR2729232A1 (fr) * | 1995-01-10 | 1996-07-12 | Commissariat Energie Atomique | Dispositif optique pour application optomecanique |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1346947A3 (fr) * | 2002-03-19 | 2004-04-14 | Japan Aviation Electronics Industry, Limited | Dispositifs d'attenuation ou commutation optique contrôlés électrostatiquement |
Also Published As
Publication number | Publication date |
---|---|
WO2002065161A3 (fr) | 2003-03-13 |
AU2002241010A1 (en) | 2002-08-28 |
FR2820832A1 (fr) | 2002-08-16 |
FR2820832B1 (fr) | 2003-05-16 |
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