WO2006120308A1 - Connecteur a fibre optique enfichable en milieu fluide - Google Patents
Connecteur a fibre optique enfichable en milieu fluide Download PDFInfo
- Publication number
- WO2006120308A1 WO2006120308A1 PCT/FR2005/002103 FR2005002103W WO2006120308A1 WO 2006120308 A1 WO2006120308 A1 WO 2006120308A1 FR 2005002103 W FR2005002103 W FR 2005002103W WO 2006120308 A1 WO2006120308 A1 WO 2006120308A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- plug
- optical fiber
- base
- centering
- fluid
- 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
- G02B6/36—Mechanical coupling means
- G02B6/38—Mechanical coupling means having fibre to fibre mating means
- G02B6/3807—Dismountable connectors, i.e. comprising plugs
- G02B6/3833—Details of mounting fibres in ferrules; Assembly methods; Manufacture
- G02B6/3834—Means for centering or aligning the light guide within the ferrule
- G02B6/3841—Means for centering or aligning the light guide within the ferrule using rods, balls for light guides
-
- 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
- G02B6/36—Mechanical coupling means
- G02B6/38—Mechanical coupling means having fibre to fibre mating means
- G02B6/3807—Dismountable connectors, i.e. comprising plugs
- G02B6/381—Dismountable connectors, i.e. comprising plugs of the ferrule type, e.g. fibre ends embedded in ferrules, connecting a pair of fibres
- G02B6/3816—Dismountable connectors, i.e. comprising plugs of the ferrule type, e.g. fibre ends embedded in ferrules, connecting a pair of fibres for use under water, high pressure connectors
-
- 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
- G02B6/36—Mechanical coupling means
- G02B6/38—Mechanical coupling means having fibre to fibre mating means
- G02B6/3807—Dismountable connectors, i.e. comprising plugs
- G02B6/381—Dismountable connectors, i.e. comprising plugs of the ferrule type, e.g. fibre ends embedded in ferrules, connecting a pair of fibres
- G02B6/3818—Dismountable connectors, i.e. comprising plugs of the ferrule type, e.g. fibre ends embedded in ferrules, connecting a pair of fibres of a low-reflection-loss type
- G02B6/382—Dismountable connectors, i.e. comprising plugs of the ferrule type, e.g. fibre ends embedded in ferrules, connecting a pair of fibres of a low-reflection-loss type with index-matching medium between light guides
-
- 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
- G02B6/36—Mechanical coupling means
- G02B6/38—Mechanical coupling means having fibre to fibre mating means
- G02B6/3807—Dismountable connectors, i.e. comprising plugs
- G02B6/381—Dismountable connectors, i.e. comprising plugs of the ferrule type, e.g. fibre ends embedded in ferrules, connecting a pair of fibres
- G02B6/3818—Dismountable connectors, i.e. comprising plugs of the ferrule type, e.g. fibre ends embedded in ferrules, connecting a pair of fibres of a low-reflection-loss type
- G02B6/3821—Dismountable connectors, i.e. comprising plugs of the ferrule type, e.g. fibre ends embedded in ferrules, connecting a pair of fibres of a low-reflection-loss type with axial spring biasing or loading means
-
- 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
- G02B6/36—Mechanical coupling means
- G02B6/38—Mechanical coupling means having fibre to fibre mating means
- G02B6/3807—Dismountable connectors, i.e. comprising plugs
- G02B6/3873—Connectors using guide surfaces for aligning ferrule ends, e.g. tubes, sleeves, V-grooves, rods, pins, balls
- G02B6/3885—Multicore or multichannel optical connectors, i.e. one single ferrule containing more than one fibre, e.g. ribbon type
Definitions
- the invention relates to a plug-in optical fiber connector in a fluid medium, and in particular for application downhole oil well under severe temperature and pressure conditions, greater than 130 0 C and 1200 bar.
- a plug-in optical fiber connector in a fluid medium comprising a fixed connector portion or base and a movable connector portion or plug intended to mate with the base to form a fiber optic connection contained in said connector parts, characterized in that the plug comprises:
- At least one channel portion housing an optical fiber and disposed in the body portion parallel to its axis;
- At least one front centering portion of the optical fiber connected to the front end of the channel portion and slidably mounted parallel to the axis of the body portion and in a sealed manner in the body portion, said at least one channel portion, said rear tubular portion, said at least one front centering portion constituting a first movable linear connecting member of the optical fiber; a chamber with opposed pistons, mounted axially in the body portion and containing an optical fluid, and held in extension by a helical spring bearing against the pistons,
- the base comprises in a complementary way:
- a body part of configuration similar to that of the plug provided with a front part complementary to the game close to that of the plug; at least one channel portion housing an optical fiber and disposed parallel to the body portion axis in the body portion;
- an outer membrane surrounding the body part containing optical fluid placed in communication with the piston chamber, said at least one channel part, said at least one centering part and the front part, and putting the assembly in equipression with the external fluid, the plug coupling in operating position in the base by application and introduction centered of the front portion of its body in the front portion of the base, and with application of said at least one centering portion of the plug against the corresponding centering portion of the base, said at least one rear tubular portion of the plug being slidably pushed into the body portion to compress the piston chamber of the plug, in a first step, and allow the ejecting the optical fluid at the end of said at least one centering portion and corresponding front portion of the plug to press the front end of the optical fiber and drive away the fluid and the outer particles, while the centering portion of the base is moved back under the pressure of the plug to resold even under the compression of its piston chamber the end of its optical fiber that extends into the part centering the plug, in
- the connector according to the invention may comprise in each body part a variable number of said connecting elements of a fiber
- Said at least one rear tubular portion of the plug is slidably stopped in the body portion so as to ensure the plug connection of the plug in the base a displacement of the plug in the base equal to displacement sliding of each said rear tubular part in its body and likewise fibers
- said at least one rear tubular portion of the plug has a stop surface that bears against a surface complementary to the body portion and constitutes a barrier
- This rear tubular portion of the plug which hermetically accommodates the connector cable, is further sealingly mounted in the body portion by a set of O-ring seals disposed in front of said stop surface. . i ⁇
- the front part of the plug further comprises a flexible membrane front at its end pierced axially at least to the diameter of the fiber and preventing external particles from entering the plug, forming a barrier to seal the external fluid from the beginning of the plugging and releasing the fiber from the base when it goes through the plug
- This front portion of the plug has a plug guide element promoting the ejection of the optical fluid to chase the particles and external fluid present at the end of the front portions of the connector, consisting for example of centering teeth or a centering surface with optical fluid passage vents.
- the front end of this body part it is applied in sealing under the pressing pressure on the corresponding body portion of the plug, preferably by means of complementary axial conical surfaces.
- Said at least one centering portion of the base simply comprises in continuity with the bore of the corresponding channel portion, of relatively large diameter to allow flexibility to the plug, an axial internal conical recess facing towards the front end and extended by an axial bore of diameter of at least that of the fiber for its axial passage with slight clearance.
- Said at least one centering portion of the plug is of known configuration, comprising three triangular-contacted front balls in contact to let the passage of the low-backlash fiber in the center, and two longitudinal rollers forming with at least one upper ball of maintaining a recess constraining the passage fiber towards the alignment axis.
- the piston chambers of the plug and the base are of similar configuration, each having two opposed pistons of the type with peripheral lips turned forward and channeling the fluid forward, and the front piston comprises a suitable front volume. to drive the optical fluid forward especially at the time of disconnection of the connector to prevent the return of the external fluid.
- the stiffness of the coil spring of the piston chamber of the base is greater than that of the corresponding spring of the chamber of the plug, so as to ensure the aforementioned successive compression sequences of the chambers, in particular the compression in the first place of the chamber piston of the plug.
- FIG. 1 is an axial longitudinal sectional view of a connector according to the invention in the disconnected position
- FIGS. 4 and 5 are front views of the plug and the connector base
- FIG. 6 is an enlarged axial longitudinal sectional view showing the connection of the fibers in the connected position and their alignment
- FIG. 7 is a view in longitudinal section of an alternative embodiment of a connector according to the invention, comprising three connection elements of an optical fiber, and
- FIG. 8 and 9 are views of the front faces of the plug and the connector base, respectively.
- the connector represented in FIGS. 1 to 6 comprises a base 1 fixed or not, and a mobile plug 3 designed to be plugged into the base 1 in order to make an optical connection of the continuous linear elements of optical fiber, said optical fibers, contained in the plug 3 and the base 1, these being connected to corresponding optical cables (not shown) each housing a said optical fiber element.
- An elastomeric membrane 23 surrounds the body portion 7 in periphery and contains optical fluid 19, which is in communication with the piston chamber 17, the channel portion 15, the centering portion 13 and the front portion 9 by means of communication holes formed in each of these elements.
- the optical cable is hermetically mounted on the rear tubular portion 21, outside thereof.
- the optical fiber 5 is mounted integral with the rear tubular portion 21 by brazing a metal solder alloy on the metal support 25 of the tubular portion 21, or by welding glass frit directly on the exposed optical fiber, this which makes it possible to seal the external fluid (seawater or other) and withstand an environment of high temperature and high pressure greater than 130 0 C and 1200 bar, unlike conventional connectors fixing the fiber with a material synthetic epoxy on this rear part which degrades quickly under these conditions.
- the channel portion 15 houses the optical fiber 5 with the possibility of slight bending thereof, with a bore diameter equal to 2 to several times that of the optical fiber 5. This portion is axially connected to the front centering portion 13 which is intended to axially guide the optical fiber 5.
- This centering portion 13 comprises in a known manner (FIG. 6) three front balls 27, two adjacent rear longitudinal rollers 29, two balls 31 applied to the rollers 29 at the clearance clearance near the fiber 5, and three rear balls 33 arranged in equilateral triangle and in contact with one another as the three balls before 27.
- the end of the optical fiber 5 is disposed substantially in the middle of the centering portion 13, being maintained at this position.
- the front portion 9 integral with the body portion 7 is mounted adjacent to the centering portion 13, being provided with a flexible membrane 35, elastomer mounted on the front edge and provided with a passage hole 37 with a short clearance, of the optical fiber of the base.
- This front part also has protruding teeth 11 (FIG. 4) distributed circumferentially on its front edge and chamfered at their inner end, circumferentially, to pre-stabilize the insertion on the base 1 and to facilitate the evacuation of soiling during of the connection.
- protruding teeth 11 distributed circumferentially on its front edge and chamfered at their inner end, circumferentially, to pre-stabilize the insertion on the base 1 and to facilitate the evacuation of soiling during of the connection.
- the hole of the membrane allows the ejection of the optical fluid 19, in particular to the compression of the piston chamber 17, carries out the wicking of the optical fiber 5 of passage (of the base) and prevents the introduction of the external fluid.
- the outer bead 39 for attaching the diaphragm 35 cooperates with the cylindrical front bored portion 41 of the body 43 of the base to ensure the tightness of the tapping and, likewise, the front portion 41 of the base cooperates with its end with the tapered front part 9 of the plug, with pressure contact, to complete the seal at the end of plugging.
- the piston chamber 17 disposed behind the centering portion 13 is delimited peripherally by the body portion 7 and at its ends by two opposed piston members 45. It contains optical fluid 19 whose refractive index is close that of the fiber 5 so as to promote the optical fiber connection (signal transmission).
- the pistons 45 are of the forwardly flexible peripheral lip type, sliding in the bore 47 of the body portion and sliding on the channel portion with little clearance.
- a coil spring 49 received around the channel portion presses against them, at their base.
- the peripheral membrane 23 is a flexible membrane, resistant to solvents. It forms the reservoir of the optical fluid 19 contained in the plug, respectively, in the piston chamber 17, the channel portion
- the base 1 comprises in a configuration substantially similar to that of the plug 3 a cylindrical body portion 43, of
- the front centering portion 55 is slidably mounted with sealing at the front of the body portion 43, until it comes to disconnection at the front stop on complementary conical surfaces.
- the centering portion 55 of the base recoils and compresses the piston chamber 59 thereof, which prolongs the ejection of optical fluid 19 forward.
- the optical fiber 5 is then output from the centering portion 55 and front portion 41 and enters the centering portion 13 of the plug.
- connection stroke (FIG. 3) is performed when the front end of the body 43 is brought into abutment on the front conical portion of the body 7 of the plug and, at this moment, the sealing is effected by the application at abutment 65 at high pressure conical surfaces facing and by the bead 39 of the membrane 35 of the plug, as mentioned above.
- the optical fiber 5 of the base 1 is then in contact with that of the plug 3, substantially in the middle of the centering portion 13 of the plug and the weak application clearance is absorbed by the rear bending of the fibers 5 in the opposite channel portions 15, 53 of the connector.
- the disconnection is performed and obtained in a reverse manner with ejection of optical fluid 19 at the front, as mentioned above.
- the connector according to the invention may comprise several identical connection elements of an optical fiber 5 'in each of the body parts of the plug 7' and of the base 43 ' , three in the example, arranged in a geometry determined or not. According to the example shown, these elements are in an axial circular configuration in cross section and each parallel to the axis of the body parts of the connector.
- each of the optical fiber connection elements channel portion 15 ', 53', rear tubular portion 21 ', 51' and front centering portion 13 ', 55 ⁇ are analogous to those of the connector previously shown for an optical fiber, allowing axial plugging of the plug 3 'in the base 1' simultaneous connection and disconnection of each of the optical fibers 5 'contained, with a contact bending of each fiber equivalent to that of the fiber of the connector to a single optical fiber mentioned above.
- optical fiber connection elements cooperate in connection and disconnection of the connector, simultaneously, in their respective body portion and at an identical translation amplitude.
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB0722049A GB2440297B (en) | 2005-05-09 | 2005-08-18 | Plug-in fibre-optic connector for use in a fluid medium |
US11/914,051 US7530744B2 (en) | 2005-05-09 | 2005-08-18 | Plug-in fiber-optic connector for use in a fluid medium |
NO20075713A NO339091B1 (no) | 2005-05-09 | 2007-11-08 | Fiberoptisk pluggkontakt for bruk i et fluidmedium |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0504617A FR2885421B1 (fr) | 2005-05-09 | 2005-05-09 | Connecteur a fibre optique enfichable en milieu fluide |
FR0504617 | 2005-05-09 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2006120308A1 true WO2006120308A1 (fr) | 2006-11-16 |
Family
ID=35709311
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FR2005/002103 WO2006120308A1 (fr) | 2005-05-09 | 2005-08-18 | Connecteur a fibre optique enfichable en milieu fluide |
Country Status (5)
Country | Link |
---|---|
US (1) | US7530744B2 (fr) |
FR (1) | FR2885421B1 (fr) |
GB (1) | GB2440297B (fr) |
NO (1) | NO339091B1 (fr) |
WO (1) | WO2006120308A1 (fr) |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2916909B1 (fr) * | 2007-05-30 | 2009-08-07 | Sagem Defense Securite | Dispositif de protection des elements emboitables d'un connecteur |
US7580608B1 (en) | 2008-04-29 | 2009-08-25 | Corning Cable Systems Llc | Pushing-in fiber optic cable driver |
FR2963686B1 (fr) * | 2010-08-03 | 2013-05-17 | Carrier Kheops Bac | Connecteur optique sous-marin |
AU2013384335B2 (en) * | 2013-03-26 | 2018-03-01 | Prysmian S.P.A. | Automated tightener for a wet mateable connection assembly |
EP2846419A1 (fr) * | 2013-09-06 | 2015-03-11 | Siemens Aktiengesellschaft | Pièce de connecteur sous-marin |
WO2015089440A1 (fr) * | 2013-12-12 | 2015-06-18 | Teledyne Instruments, Inc. | Connecteur optique sous-marin utilisant plusieurs joints |
EP2977802A1 (fr) * | 2014-07-25 | 2016-01-27 | Siemens Aktiengesellschaft | Procédé de protection d'une unité de connecteur |
US9270051B1 (en) * | 2014-09-04 | 2016-02-23 | Ametek Scp, Inc. | Wet mate connector |
US11293736B2 (en) * | 2015-03-18 | 2022-04-05 | DynaEnergetics Europe GmbH | Electrical connector |
EP3488277B1 (fr) * | 2016-07-19 | 2021-08-25 | Siemens Energy Global GmbH & Co. KG | Unité de connexion et procédé de fonctionnement associé |
US11217909B2 (en) * | 2019-09-16 | 2022-01-04 | Teledyne Instruments, Inc. | Connector suitable for harsh environments |
US11435536B1 (en) | 2021-07-29 | 2022-09-06 | Teledyne Instruments, Inc. | Latched optical feedthrough system for subsea wellhead penetration using spherical seals |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4411491A (en) * | 1981-09-10 | 1983-10-25 | Trw Inc. | Connector assembly with elastomeric sealing membranes having slits |
WO1986002173A1 (fr) * | 1984-10-03 | 1986-04-10 | Lockheed Corporation | Connecteur de fibres optiques pouvant etre couplees sous l'eau |
US4887883A (en) * | 1988-06-20 | 1989-12-19 | Honeywell Inc. | Undersea wet-mateable fiber optic connector |
GB2342461A (en) * | 1998-09-23 | 2000-04-12 | Tronic Ltd | Submersible connector |
US6315461B1 (en) * | 1999-10-14 | 2001-11-13 | Ocean Design, Inc. | Wet mateable connector |
-
2005
- 2005-05-09 FR FR0504617A patent/FR2885421B1/fr active Active
- 2005-08-18 US US11/914,051 patent/US7530744B2/en active Active
- 2005-08-18 WO PCT/FR2005/002103 patent/WO2006120308A1/fr active Application Filing
- 2005-08-18 GB GB0722049A patent/GB2440297B/en active Active
-
2007
- 2007-11-08 NO NO20075713A patent/NO339091B1/no unknown
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4411491A (en) * | 1981-09-10 | 1983-10-25 | Trw Inc. | Connector assembly with elastomeric sealing membranes having slits |
WO1986002173A1 (fr) * | 1984-10-03 | 1986-04-10 | Lockheed Corporation | Connecteur de fibres optiques pouvant etre couplees sous l'eau |
US4887883A (en) * | 1988-06-20 | 1989-12-19 | Honeywell Inc. | Undersea wet-mateable fiber optic connector |
GB2342461A (en) * | 1998-09-23 | 2000-04-12 | Tronic Ltd | Submersible connector |
US6315461B1 (en) * | 1999-10-14 | 2001-11-13 | Ocean Design, Inc. | Wet mateable connector |
Also Published As
Publication number | Publication date |
---|---|
FR2885421A1 (fr) | 2006-11-10 |
NO20075713L (no) | 2008-02-07 |
US20080205831A1 (en) | 2008-08-28 |
GB0722049D0 (en) | 2007-12-19 |
NO339091B1 (no) | 2016-11-14 |
US7530744B2 (en) | 2009-05-12 |
GB2440297A (en) | 2008-01-23 |
FR2885421B1 (fr) | 2007-07-27 |
GB2440297B (en) | 2010-02-24 |
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