CN106646768B - Magnetic optical fiber coupling device - Google Patents
Magnetic optical fiber coupling device Download PDFInfo
- Publication number
- CN106646768B CN106646768B CN201710173859.6A CN201710173859A CN106646768B CN 106646768 B CN106646768 B CN 106646768B CN 201710173859 A CN201710173859 A CN 201710173859A CN 106646768 B CN106646768 B CN 106646768B
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- Prior art keywords
- optical fiber
- magnetic
- ferrule
- inserting part
- sleeve
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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
- G02B6/381—Dismountable connectors, i.e. comprising plugs of the ferrule type, e.g. fibre ends embedded in ferrules, connecting a pair of fibres
- G02B6/3826—Dismountable connectors, i.e. comprising plugs of the ferrule type, e.g. fibre ends embedded in ferrules, connecting a pair of fibres characterised by form or shape
-
- 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
- G02B6/3825—Dismountable connectors, i.e. comprising plugs of the ferrule type, e.g. fibre ends embedded in ferrules, connecting a pair of fibres with an intermediate part, e.g. adapter, receptacle, linking two plugs
-
- 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
- G02B6/3886—Magnetic means to align ferrule ends
Abstract
The invention relates to a magnetic optical fiber coupling device, which comprises a plug and a plug tail which are mutually spliced, wherein the plug comprises a first splicing part and a first connecting part, the plug tail comprises a second splicing part and a second connecting part, and the first splicing part and the second splicing part are both magnetic and opposite in magnetism; the first inserting part comprises a first optical fiber composite body and a pipe wall arranged outside the first optical fiber composite body; the second inserting part comprises a second optical fiber composite body and a sleeve arranged outside the second optical fiber composite body. The coupler of the invention has the advantages of high plugging speed, high durability, good optical fiber alignment and high optical conductivity, can rotate in any axial direction after being connected, does not influence the optical conductivity, is matched and connected in a mutual embedding or concave-convex combination mode and the like, greatly increases the stability and reliability of a coupling mode, and correspondingly greatly improves the optical conductivity.
Description
Technical Field
The invention relates to the technical field of laser, in particular to a magnetic optical fiber coupling device.
Background
The optical fiber coupler is a device for detachable and movable connection between optical fibers, and precisely butt-joints two end faces of the optical fibers so that light energy output by a transmitting optical fiber can be coupled into a receiving optical fiber to the maximum extent, and the optical fiber coupler is intervened in an optical link so as to minimize the influence on a system. The following classifications may be made depending on the fiber to be coupled: SC fiber coupler: applied to SC fiber interface, it looks similar to RJ-45 interface, but SC interface looks more flat, and it is the contact inside that it is obvious difference, if is 8 thin copper contacts, is RJ-45 interface, if is a copper post then is SC fiber interface. LC fiber coupler: the connector is applied to LC optical fiber interfaces and is connected with SFP modules, and is manufactured by adopting a modular jack (RJ) latching mechanism which is convenient to operate (the common router is used). FC fiber coupler: the fiber reinforced FC optical fiber connector is applied to an FC optical fiber connector, a metal sleeve is adopted as an external reinforcing mode, and a turnbuckle is adopted as a fastening mode. ST fiber couplers (the most used on patch panels) are typically employed on the ODF side: be applied to ST fiber interface, be used for fiber optic distribution frame usually, the shell is circular, and the fastening mode is the turnbuckle.
The inserting mode that above-mentioned coupler adopted constitutes for turnbuckle or buckle mode, need carry out zonulae occludens through rotatory mode when connecting, and coupling efficiency receives the number of revolutions, dynamics to influence very much, and the easy wearing and tearing terminal surface of many back of connection number of times causes the loss to increase, and connection speed is slow to can not rotate after connecting. In order to solve the problems, the optical fiber coupling device adopts a magnetic connection mode to carry out optical fiber coupling, has high coupling speed and high precision, coupling efficiency is not influenced by manpower, and the optical fiber coupling device can carry out arbitrary axial rotation after coupling, thereby meeting the requirements of frequent, high-durability, convenience and quickness in the fields of communication, medical treatment and the like for precise optical fiber coupling.
Disclosure of Invention
In view of the above, an object of the present invention is to provide a magnetic optical fiber coupling device, which solves the problems that the existing coupler needs to be tightly connected by rotation, the coupling efficiency is greatly affected by the number of rotations and force, the end surface is easily worn after a large number of connections, the loss is increased, the connection speed is slow, and the coupler cannot be rotated after the connection.
the purpose of the invention is realized by the following technical scheme:
A magnetic optical fiber coupling device comprises a plug and a plug tail which are mutually inserted, wherein the plug comprises a first inserting part and a first connecting part which are mutually fixedly connected, the plug tail comprises a second inserting part and a second connecting part which are mutually fixedly connected, the free end of the first inserting part and the free end of the second inserting part are in pluggable connection, and the first inserting part and the second inserting part are both magnetic;
The first inserting part comprises a first optical fiber composite body and a pipe wall arranged outside the first optical fiber composite body; the second inserting part comprises a second optical fiber composite body and a sleeve arranged outside the second optical fiber composite body;
the first inserting part and the second inserting part are opposite in magnetism, so that the first inserting part and the second inserting part can attract each other, and the first optical fiber complex and the second optical fiber complex are in tight butt joint.
further, the first optical fiber complex comprises a first ferrule, a first optical fiber penetrating through the axis of the first ferrule for guiding light, and a first jacket wrapping the periphery of the first ferrule;
The second optical fiber complex comprises a second ferrule, a second optical fiber penetrating through the axis of the second ferrule for guiding light, and a second jacket wrapping the periphery of the second ferrule;
The first optical fiber complex and the second optical fiber complex have the same outer diameter.
Further, the sleeve comprises a first sleeve wrapped outside the second optical fiber composite body and a second sleeve arranged on the periphery of the first sleeve, and a first annular groove capable of accommodating the pipe wall is formed between the outer wall of the first sleeve and the inner wall of the second sleeve.
Further, a second annular groove capable of accommodating the first sleeve is formed between the outer wall of the first optical fiber complex and the inner wall of the tube wall.
Further, the top end of the second optical fiber complex is lower than the top end of the first ferrule so that a first hollow groove capable of just receiving the first optical fiber complex is formed in the upper end of the first ferrule.
Further, in the first fiber optic complex, a tip of the first ferrule extends outside the first jacket.
In the second optical fiber complex, the second jacket extends out of the second ferrule, and a second hollow groove capable of accommodating the first ferrule extending out of the first jacket is formed inside the top end of the second jacket, so that the first ferrule and the second ferrule are in close contact, and the first optical fiber and the second optical fiber are in close contact.
Furthermore, the top ends of the first inserting core and the second inserting core are provided with wear-resistant layers.
further, the material of the wear-resistant layer is graphene or polytetrafluoroethylene.
Furthermore, the first insertion part and the second insertion part are both cylindrical or annular structures, and the first insertion part takes the axis of the first optical fiber as an axis; the second inserting part takes the axis where the second optical fiber is positioned as an axis;
Between the first inserting part and the second inserting part, all parts in contact with each other have opposite magnetism so that the first inserting part and the second inserting part can have axial attraction and lateral attraction simultaneously.
further, the method of forming the first and second socket parts having magnetism includes any one of: firstly, preparing the first inserting part and the second inserting part by adopting a magnetic material; secondly, the first inserting part and the second inserting part are electromagnetically magnetized; and arranging electromagnetic wires in the first inserting part and the second inserting part.
Further, in the above-mentioned (r), the magnetic material includes any one of a permanent magnetic material, a soft magnetic material, a gyromagnetic material, and a piezomagnetic material; the permanent magnetic material may be neodymium iron boron.
Further, in the second step, the first inserting part and the second inserting part are made of ceramic, metal or stainless steel.
The invention has at least the following beneficial effects:
The coupler has the advantages of high plugging speed, high durability, good optical fiber alignment and high optical conductivity, can rotate in any axial direction after being connected, and does not influence the optical conductivity. The coupling efficiency among the prior art has been overcome the influence of number of revolutions, dynamics, and the easy wearing and tearing terminal surface of many back of connection number of times leads to the fact the loss to increase, connect and dismantle speed slow to can not rotate after connecting etc. not enough.
Secondly, the coupler is matched and connected in a mutual embedding or concave-convex combination mode and the like between the first optical fiber complex and the first sleeve, between the first inserting core and the butterfly sleeve and between the first sleeve, the second sleeve and the pipe wall, so that the stability and the reliability of a coupling mode are greatly improved, and the light conduction efficiency is correspondingly greatly improved.
All parts of the coupler are cylindrical or circular, can rotate freely and have lateral attraction, the traction optical fibers are aligned with each other, and the two ends of the coupler are tightly combined through the axial attraction, so that the optical fibers on the two sides are aligned and efficiently transmitted to light.
The invention can be magnetized in various ways, so that the corresponding structure or part has magnetism. In summary, the coupler of the present invention aligns optical fibers in a multiplex manner, and is convenient to use, and has high alignment efficiency and high optical conductivity.
Drawings
fig. 1 is a schematic diagram of an overall external structure of a magnetic fiber coupling device according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of the overall structure of a magnetic fiber coupling device according to an embodiment of the present invention;
Fig. 3 is a schematic perspective view of a plug according to an embodiment of the present invention;
FIG. 4 is a schematic cross-sectional view of a plug according to an embodiment of the present invention;
FIG. 5 is a schematic perspective view of a plug tail according to an embodiment of the present invention;
FIG. 6 is an elevational, cross-sectional view of a plug tail according to an embodiment of the present invention;
FIG. 7 is a cross-sectional view of a plug tail according to an embodiment of the present invention;
Fig. 8 is a schematic diagram of a winding structure of an electromagnetic wire according to an embodiment of the present invention.
1. First connecting portion, 2, first plug-in part, 6, second plug-in part, 7, second connecting portion, 21, first optic fibre, 22, first lock pin, 23, first cover, 24, pipe wall, 25, first ring channel, 61, second optic fibre, 62, second lock pin, 63, second cover, 64, first sleeve pipe, 65, second sleeve pipe, 66, second hollow groove, 67, first hollow groove, 68, second ring channel, 69, electromagnetism wire.
Detailed Description
The technical solutions in the embodiments of the present invention are clearly and completely described below, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The detailed description of the embodiments of the present invention provided below is not intended to limit the scope of the invention as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
As shown in fig. 1 to 7, a magnetic optical fiber coupling device includes a plug and a tail, the plug includes a first plugging portion 2 and a first connecting portion 1, the first plugging portion and the second connecting portion are fixedly connected to each other, the tail includes a second plugging portion 6 and a second connecting portion 7, the free end of the first plugging portion 2 and the free end of the second plugging portion 6 are in pluggable connection, and the first plugging portion 2 and the second plugging portion 6 have magnetism and opposite magnetism; the first plug part 2 comprises a first optical fiber 21 composite body and a pipe wall 24 arranged outside the first optical fiber 21 composite body; the second plug part 6 includes a second optical fiber 61 composite body and a ferrule disposed outside the second optical fiber 61 composite body.
the first plug part 2 and the second plug part 6 have opposite magnetism so that they can attract each other and the first optical fiber 21 complex and the second optical fiber 61 complex are closely butted.
The first optical fiber 21 complex comprises a first ferrule 22, a first optical fiber 21 penetrating the axial center of the first ferrule 22 for guiding light, and a first jacket 23 wrapping the periphery of the first ferrule 22; the second optical fiber 61 complex comprises a second ferrule 62, a second optical fiber 61 penetrating the axial center of the second ferrule 62 for guiding light, and a second jacket 63 wrapping the periphery of the second ferrule 62;
The outer diameters of the first optical fiber 21 composite body and the second optical fiber 61 composite body are consistent, and the composite layer structures are also consistent, namely the structural thicknesses of the first ferrule 22, the second ferrule 62, the first sleeve 23 and the second sleeve 63 are consistent, so that the first optical fiber 21 and the second optical fiber 61 can be aligned and contacted better, and the optical conductivity is improved.
Between the first inserting part 2 and the second inserting part 6, all the parts which are contacted with each other are opposite in magnetism, so that the first inserting part 2 and the second inserting part 6 can be simultaneously attracted in the axial direction and in the lateral direction. The lateral attraction is provided in the mutual attraction process, so that the mutual alignment of the traction optical fibers is facilitated; the axial attractive force causes the two ends of the coupler to mate so that the optical fibers in the plug and the tail align and contact each other.
The sleeve comprises a first sleeve 64 and a second sleeve 65, wherein the first sleeve 64 wraps the outside of the second optical fiber 61 composite body (specifically, the outside of the second jacket 63), the second sleeve 65 is arranged on the periphery of the first sleeve 64, and a first annular groove 25 which can just accommodate the tube wall 24 is arranged between the outer wall of the first sleeve 64 and the inner wall of the second sleeve 65, so that the first annular groove 25 is tightly matched with the second sleeve 65 in a seam manner, and the alignment of the optical fibers in the plug and the plug tail is facilitated.
a second annular groove 68 is provided between the outer wall of the first optical fiber 21 complex and the inner wall of the tube wall 24 to snugly receive the first ferrule 64 such that the snug fit of the second annular groove 68 with the first ferrule 64 helps align the optical fibers in the plug and the pigtail.
The top end (i.e., the free end, i.e., the end that interfaces with the plug) of the second optical fiber 61 composite body is lower than the top end (i.e., the free end, i.e., the end that interfaces with the plug) of the first ferrule 64, i.e., the first ferrule 64 extends outside the second optical fiber 61 composite body, so that a first hollow groove 67 capable of properly accommodating the first optical fiber 21 composite body is formed in the upper end of the first ferrule 64, which also facilitates the alignment of the optical fibers in the plug and the plug tail, and increases the stability and reliability of the coupling method.
In the first optical fiber 21 composite, the top end of the first ferrule 22 extends outside the first jacket 23, i.e., the top end portion of the first ferrule 22 is above or higher than the first jacket 23.
In the second optical fiber 61 complex, correspondingly, the second jacket 63 extends out of the second ferrule 62, i.e. the top end of the second jacket 63 is higher or higher than the second ferrule 62, a second hollow groove 66 capable of just accommodating the portion of the first ferrule 22 extending out of the first jacket 23 is formed inside the top end (i.e. the free end) of the second jacket 63, so that the first ferrule 22 and the second ferrule 62 are in close contact and the first optical fiber 21 and the second optical fiber 61 are in close contact, the stability and reliability of the coupling mode are increased, and the light conduction efficiency is higher.
Then, after the first optical fiber 21 complex is inserted into the first hollow groove 67, the first jacket 23 is in close contact with both end faces of the second jacket 63, and the tip of the first ferrule 22 is just inserted into the second hollow groove 66 and is in close contact with the second ferrule 62, so that the first optical fiber 21 in the first ferrule 22 and the second optical fiber 61 in the second ferrule 62 are just aligned and in close contact, and the light transmission efficiency is higher.
the top end faces of the first inserting core 22 and the second inserting core 62, which are contacted with each other, are coated with wear-resistant layers, so that the durability of repeated inserting is improved. Meanwhile, the combination strength of the plug and the plug tail can be controlled through the thickness of the wear-resistant layer.
The wear-resistant layer is made of graphene or polytetrafluoroethylene and the like, so that the lubrication and the wear resistance of the combined part can be improved.
In a more preferred embodiment, the first jacket 23, the second jacket 63, the first sleeve 64, the second sleeve 65, the pipe wall 24, and other tips are coated with an abrasion resistant layer, which may be made of graphene or polytetrafluoroethylene, to further improve the durability, abrasion resistance, and lubricity of the multi-touch patch as a whole.
It should be further emphasized that the first ferrule 22, the first jacket 23, the tube wall 24, and the like in the present invention are all cylindrical or annular, and are all coaxial with the first ferrule 22, i.e. all take the axis of the first optical fiber 21 as the axis; similarly, the second ferrule 62, the second sleeve 63, the first sleeve 64, the second sleeve 65, and the like are all cylindrical or annular, and are all coaxial with the second ferrule 62, i.e., all axial with respect to the axis of the second optical fiber 61. Any rotation can be performed.
Example 2
On the basis of embodiment 1, the method for forming the first and second socket parts 2 and 6 having magnetism may be: the first and second mating parts 2, 6 are made of a magnetic material.
The magnetic material comprises any one of a permanent magnetic material (such as neodymium iron boron), a soft magnetic material, a gyromagnetic material and a piezomagnetic material. The permanent magnet material may be neodymium iron boron, such as type N52 neodymium iron boron.
example 3
On the basis of embodiment 1, the method for forming the first and second socket parts 2 and 6 having magnetism may be: performing electromagnetic magnetization on the first inserting part 2 and the second inserting part 6 which are prepared; i.e. its magnetic properties are additive.
the first plug part 2 and the second plug part 6 are made of ceramic, metal or stainless steel and the like, and the materials can be magnetized at a later stage.
example 4
On the basis of embodiment 1, the method for forming the first and second socket parts 2 and 6 having magnetism may be: an electromagnetic wire 69 is wound inside the first socket part 2 and inside the second socket part 6, and the winding manner of the electromagnetic wire 69 can be seen in fig. 8.
The magnetic attraction structure is formed by adopting an electromagnet mode, a thin electromagnetic wire is wound on a magnetic material, and magnetism is generated by passing direct current. The method can control the magnetic attraction force, thereby automatically controlling the coupling/decoupling.
Electromagnetic materials can be formed by adopting a coil winding mode and the like outside the first inserting core 22 and the second inserting core 62, specifically, a space can be reserved outside the first inserting core 22 and the second inserting core 62 to wind electromagnetic wires when needed, so that the first inserting core 22 and the second inserting core 62 and the like have magnetism; of course, if it is initially determined that the magnetization is to be applied in this manner, the electromagnetic wire can be wound during the process of manufacturing the coupler of the present invention.
in the present invention, to further explain the structure of the coupler, the following implementation process is given, taking a multimode fiber coupler as an example, the diameter of the first fiber 21 and the second fiber 61 is 300um, the diameter of the first ferrule 22 and the second ferrule 62 of the outer layer is 3mm, the first ferrule 22 and the second ferrule 62 can be ceramic ferrules, and the top ends of the first ferrule 22 and the second ferrule 62 are coated with graphene wear-resistant materials. The first ferrule 22 and the second ferrule 62 are externally reinforced and protected by a first sleeve 23 and a second sleeve 63 of stainless steel. The outer diameter radius of the first sleeve 64 is 5 mm; the inner radius of the tube wall 24 is 5 mm. When coupling connection is carried out, the plug and the plug tail are lightly inserted into each other, the first sleeve 64 and the tube wall 24 are automatically fastened and connected after mutually attracting, and meanwhile, the first optical fiber 21 and the second optical fiber 61 are mutually aligned to complete coupling butt joint. After the coupling is finished, the plug and the plug tail are allowed to rotate at any angle in the axial direction because a mechanical rigid connection structure does not exist. When the connection needs to be released, the plug and the tail can be quickly separated by applying a pulling force which is larger than the magnetic force of the plug and the tail.
In specific implementation, the material for preparing each of the first insertion part 2 and the second insertion part 6 may be ceramic, metal, or stainless steel (excluding the optical fiber), and may be selected accordingly according to actual needs.
In the present invention, all but the optical fibers (i.e., the first optical fiber 21 and the second optical fiber 61) may be magnetic, and at least one of the first ferrule 22, the first jacket 23, the tube wall 24, and the like is magnetic; if the first ferrule 22 is magnetic, the second ferrule 62 is also magnetic and opposite in magnetism to attract the first ferrule 22 for tight coupling; if the first cover 23 is magnetic, the second cover 63 is also magnetic and opposite to the first cover 23; if the tube wall 24 is magnetic, the second annular groove 68 is also magnetic, and each contact surface is magnetically opposite to the tube wall 24 to attract and tightly bond with the tube wall 24. Preferably, the first ferrule 22, the first sleeve 23 and the tube wall 24 all have magnetism, and of course, magnetism may be added only at key positions according to actual needs, for example, referring to fig. 2, the first sleeve 64 is made of N52 type neodymium iron boron material, and the polarity of the top end is S type; the bottom end of the second annular groove 68 is formed of type N52 ndfeb material, and if the polarity is N, the two are attracted to each other to align them.
The first envelope 23, the second envelope 63, the wall tube, the first sleeve 64, the second sleeve 65 and the like of the coupler are all annular structures, if the annular structures are magnetic annular structures, the annular magnets have lateral attraction force in the mutual attraction process when not aligned, the optical fibers are drawn to be aligned with each other, and the two ends of the coupler are tightly combined through the axial attraction force. In addition, the magnetic force of the magnet is as follows: when two magnetic rings made of N52 type Nd-Fe-B material with 2mm outer diameter, 0.5mm inner diameter and 5mm length are attracted closely, the attraction force reaches about 1.51N (0.154Kg), and the force is enough to reach the pressure required by the tight combination of optical fibers.
In a specific use, the free ends of the first connecting portion 1 and the second connecting portion 7 can be connected with optical fibers, and then light in the optical fiber on one side can be transmitted to the optical fiber on the other side through the coupler of the present invention, for example, light in the optical fiber connected with the tail plug (i.e., the second connecting portion 7) is transmitted to the optical fiber connected with the plug (i.e., the first connecting portion 1). Specifically, the present applicant has found that the coupler of the present invention can be used in combination with the previously applied tunable laser devices (application nos. 2016214582394 and 2016112369942) capable of emitting laser light and a vascular optical fiber guide wire (application nos. 201611234625X and 2016214560291), that is, the laser device is connected to the beam combiner, which is then connected to the second connection portion 7 of the pigtail, and the vascular optical fiber guide wire is connected to the first connection portion 1 of the plug, so that the light emitted from the laser device is transmitted into the vascular optical fiber guide wire through the coupler of the present invention by the mutual docking of the plug and the pigtail, thereby performing irradiation treatment on the inside of the human body.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. The utility model provides a magnetism fiber coupling device, includes plug and the tail of inserting of pegging graft each other, the plug includes mutual fixed connection's first grafting portion and first connecting portion, the tail of inserting includes mutual fixed connection's second grafting portion and second connecting portion, the free end of first grafting portion with the free end of second grafting portion is for can pulling out the plug connection, its characterized in that: the first plugging part and the second plugging part are both magnetic;
The first inserting part comprises a first optical fiber composite body and a pipe wall arranged outside the first optical fiber composite body; the first optical fiber complex comprises a first ferrule, a first optical fiber penetrating the axis of the first ferrule for guiding light, and a first jacket wrapping the periphery of the first ferrule; the second inserting part comprises a second optical fiber composite body and a sleeve arranged outside the second optical fiber composite body; the second optical fiber complex comprises a second ferrule, a second optical fiber penetrating through the axis of the second ferrule for guiding light, and a second jacket wrapping the periphery of the second ferrule;
Between the first inserting part and the second inserting part, all parts in contact with each other have opposite magnetism so that the first inserting part and the second inserting part can have axial attraction and lateral attraction simultaneously; a first annular groove capable of accommodating a first sleeve is formed between the outer wall of the first optical fiber complex and the inner wall of the tube wall; the first inserting part and the second inserting part are opposite in magnetism and can attract each other, and the first optical fiber complex and the second optical fiber complex are in tight butt joint; the sleeve comprises a first sleeve wrapped outside the second optical fiber composite body and a second sleeve arranged on the periphery of the first sleeve, and a second annular groove capable of accommodating the pipe wall is formed between the outer wall of the first sleeve and the inner wall of the second sleeve;
The first inserting core, the first sleeve and the pipe wall are all magnetic; if the first inserting core is magnetic, the second inserting core also has magnetism and opposite magnetism, and can be mutually attracted and tightly combined with the first inserting core; if the first envelope is magnetic, the second envelope is also magnetic and can be attracted to the first envelope to be tightly combined with the first envelope in an opposite magnetic way; if the pipe wall is magnetic, the second annular groove is also magnetic, and each contact surface is opposite to the magnetism of the pipe wall so that the contact surface and the pipe wall are mutually attracted and tightly combined;
The method for forming the magnetic first plugging part and the magnetic second plugging part comprises the following steps: winding electromagnetic wires inside the first inserting part and inside the second inserting part; during preparation, a space is reserved outside the first inserting core and the second inserting core, and then an electromagnetic wire is wound in the reserved space, so that the first inserting core and the second inserting core have magnetism; the method can control the magnetic attraction force, thereby automatically controlling the coupling/decoupling.
2. The magnetic fiber coupling device of claim 1, wherein: the first optical fiber complex and the second optical fiber complex have the same outer diameter.
3. The magnetic fiber coupling device of claim 2, wherein: the top end of the second optical fiber complex is lower than the top end of the first ferrule so that a first hollow groove capable of just receiving the first optical fiber complex is formed in the upper end of the first ferrule.
4. the magnetic fiber coupling device of claim 3, wherein: in the first fiber optic complex, a top end of the first ferrule extends outside the first jacket;
In the second optical fiber complex, the second jacket extends out of the second ferrule, and a second hollow groove capable of accommodating the first ferrule extending out of the first jacket is formed inside the top end of the second jacket, so that the first ferrule and the second ferrule are in close contact, and the first optical fiber and the second optical fiber are in close contact.
5. The magnetic fiber coupling device of claim 4, wherein: the top of first lock pin and second lock pin all is equipped with the wearing layer.
6. The magnetic fiber coupling device of claim 5, wherein: the wear-resistant layer is made of graphene or polytetrafluoroethylene.
7. the magnetic fiber coupling device of claim 6, wherein: the first inserting part and the second inserting part are both cylindrical or annular structures, and the first inserting part takes the axis of the first optical fiber as an axis; the second inserting part takes the axis where the second optical fiber is located as an axis.
8. the magnetic fiber coupling device according to any one of claims 1 to 7, wherein: the method of forming the first and second mating parts with magnetic properties includes any of: firstly, preparing the first inserting part and the second inserting part by adopting a magnetic material; and secondly, electromagnetically magnetizing the first inserting part and the second inserting part.
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| CN201710173859.6A CN106646768B (en) | 2017-03-22 | 2017-03-22 | Magnetic optical fiber coupling device |
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| CN201710173859.6A CN106646768B (en) | 2017-03-22 | 2017-03-22 | Magnetic optical fiber coupling device |
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| CN106646768B true CN106646768B (en) | 2019-12-06 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2018170776A1 (en) * | 2017-03-22 | 2018-09-27 | 尚华 | Magnetic optical fiber coupling apparatus |
| CN107374567A (en) * | 2017-07-17 | 2017-11-24 | 上海澳华光电内窥镜有限公司 | A kind of optical fiber auto-collimation system, endoscopic system and optical fiber auto-collimation method |
| CN110017945B (en) * | 2019-05-21 | 2021-01-26 | 中国汽车工程研究院股份有限公司 | Method and device for centering excitation shaft of experiment table |
| CN110441868B (en) * | 2019-07-31 | 2020-12-25 | 尚华 | Optical fiber guide wire, array magnetic optical fiber connector and using method thereof |
| CN110339490B (en) * | 2019-08-09 | 2020-08-11 | 尚华 | Blood vessel optical fiber guide wire with plug |
| CN110965984A (en) * | 2019-10-23 | 2020-04-07 | 电子科技大学 | Downhole testing optical cable and downhole testing method thereof |
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