CN2784950Y - Optical fiber capillary tail fiber - Google Patents
Optical fiber capillary tail fiber Download PDFInfo
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- CN2784950Y CN2784950Y CN 200520056288 CN200520056288U CN2784950Y CN 2784950 Y CN2784950 Y CN 2784950Y CN 200520056288 CN200520056288 CN 200520056288 CN 200520056288 U CN200520056288 U CN 200520056288U CN 2784950 Y CN2784950 Y CN 2784950Y
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- optical fiber
- glass capillary
- fiber
- capillary
- kapillary
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Abstract
The utility model relates to an optical fiber capillary tail fiber which belongs to the technical field of the optical fiber passive device of the optical communication. The utility model comprises a glass capillary and an optical fiber, wherein the optical fiber comprises a bare optical fiber part and a light ray tail fiber with coating. The optical fiber capillary tail fiber is characterized in that the bare optical fiber part of the optical fiber is heat-fused in the small hole of the glass capillary. A transition layer is formed during the heat-fusion process between the small hole inner wall of the glass capillary and the outer surface of the bare optical fiber. A plurality of small holes which hold the optical fiber is installed in the glass capillary. The optical fiber holes are all heat-fused with the bare optical fiber part. The utility model enables the surface of the optical fiber to fuse the inner wall of the glass capillary directly. The core of the optical fiber and the axial center of the inner hole are completely coincident. The deviated distance between the cores of the optical fiber is decreased during the butt joint of connecting devices. The working stability and the reliability of the butt joint and the device are enhanced, and the quality and the accuracy of the processing are increased. The utility model can be widely used in the capillary tail fiber of single core or various multi-core optical fibers.
Description
Technical field:
The utility model relates to a kind of optical fiber kapillary tail optical fiber, and it belongs to the light transmitting fiber passive device technical field of optical communication.
Background technology:
Being used to make the optical fiber kapillary tail optical fiber of optical fiber connector at present, most what use all is the special cermacis kapillary; All be to use glass capillary and be used to make the optical fiber kapillary tail optical fiber great majority that optical fiber collimator and other various optical fiber patch accessory.Yet being to use special cermacis optical fiber pigtail capillaceous also to be to use the capillary fiber tail optical fiber of glass all is at first to go out various kapillaries by some professional produce in factory, and then by other factories kapillary and optical fiber combination is got up to make various optical fiber kapillary tail optical fibers.The technology of each optical fiber kapillary tail optical fiber manufacturing enterprise employing of the whole world at present all is that special-purpose organic bond 3 injects to the aperture of kapillary 2 in elder generation, as shown in accompanying drawing 1, accompanying drawing 2, immediately the bare fibre part 1 of required optical fiber is penetrated aperture, be bonded in the aperture capillaceous Deng optical fiber after the organic bond curing, thereby made optical fiber kapillary tail optical fiber.4 is the optical fiber of coating.This technology exists several very significant disadvantages:
1. physical dimension capillaceous there is the especially deviation between diameter of bore and the nominal value of very harsh technical requirement; The director circle degree of endoporus and concentricity of endoporus and cylindrical or the like.The size of endoporus and the deviation between the nominal value only allow positive 1 μ m; Only allow the deviation of 5 μ m between external diameter and its nominal value; Also only allow 5 μ m deviations between single core axle center capillaceous and the aperture center.Existing conventional process technology of so harsh accuracy requirement and processing technology can't satisfy, therefore at present be that the professional factory that produces special cermacis professional factory capillaceous or produce various glass capillaries all must drop into huge fund and buys ultraprecise kapillary special processing equipment and proprietary material, so production cost various capillaceous in the market is all very high.
2, can't guarantee accurately that all optical fiber all are positioned at the center or the same position of kapillary aperture.Although all kapillaries have all passed through processing very critically, the mismachining tolerance of 1 μ m still makes and has the gap between aperture and the optical fiber.
3, the binder that is filled between optical fiber and the capillary tube inner wall becomes solid from colloid in solidification process, and volume has produced significantly and changed, and violent contraction takes place, and the violent contraction of binder will force optical fiber to produce bending or displacement in aperture.Because optical fiber bending or displacement in aperture are uncontrollable, so the position of optical fiber in the kapillary aperture not only do not have good consistance but also do not have good repeatability.The devices such as connector that use these optical fiber kapillary tail optical fibers to make can not guarantee the extraordinary performance that continues; Can not guarantee that product quality has good consistance and stability.
Which type of 4, all must process no matter utilize optical fiber kapillary tail optical fiber to make device optical fiber, organic bond and combination end face capillaceous.The material of making optical fiber at present all is a quartz glass series.Organic bonding coat around the hardness of quartz glass on the combination end face is far longer than is also greater than kapillary.In process, process of lapping especially, the character of the machining of conplane three kinds of materials is different fully, has increased the difficulty of processing, has improved processing cost.And, cause optical fiber in the process in the kapillary aperture, twist or be shifted, increase the difficulty and the producing cost of processing because in organic binder process viscous, yielding and elastic deformation etc. are arranged.
5, except that mechanical property, the temperature characterisitic of organic bond also all differs greatly with optical fiber, kapillary.The amplitude of organic bond expansion or contraction can surpass optical fiber and kapillary widely when temperature changes, and binder significantly expands or shrinks and will force optical fiber to bend or displacement in the kapillary aperture.Technical features such as continuing of grievous injury device or grafting are understood in optical fiber bending or displacement in kapillary certainly.Moreover organic bond all has all very strong water absorptivity, and along with the device growth of service time, the steam that organic bond absorbs from air can be more and more many, and volume can become more and more big after the binder moisture absorption.The organic bond volumetric expansion can force optical fiber bending or displacement in the kapillary aperture equally, the reliability and stability energy that the infringement long term device is used.
Summary of the invention:
It is a kind of simple in structure, easy to process, lower-cost that the purpose of this utility model is to provide, and do not need the bonding optical fiber kapillary tail optical fiber of binder.
The purpose of this utility model is achieved in that
A kind of optical fiber kapillary tail optical fiber, it comprises glass capillary and optical fiber, optical fiber comprises the light tail optical fiber of bare fibre part and coating, the bare fibre portion of hot that it is characterized in that described optical fiber merges in the aperture of described glass capillary, and the inwall of the aperture of described glass capillary and the outside surface of bare fibre constitute transition bed in hot fusion process.
The aperture that several place optical fiber is set in described glass capillary, and soaking is merged in described several optic fibre holes described bare fibre part.
The tube wall of described glass capillary is to be composited by two layers or multilayer glass tube.
The utility model make optical fiber surface directly with the fusion of glass capillary inwall.Merging later on, the optical fiber cylindrical overlaps fully with capillary tube inner wall, fiber cores overlaps the deviation distance when having reduced interface unit optical fiber and fiber alignment significantly between fiber cores and the core fully with the axle center of endoporus; Optical fiber has reduced fiber cores when specific object docks and has departed from the distance in object axle center, has reduced the attenuation that continues, has obviously improved the performance that continues of device; Improved continue repeated and stable.Also improved the exchange performance that patches between the device greatly; Cushion has replaced the organic bond of fixed fiber in the original aperture, has absorbed, disperseed the stress that causes between optical fiber and the kapillary effectively, has improved the stability and the reliability of device work; Improve the processing characteristics of processed end face, reduced the end face processing cost, improved the quality and the precision of processing.The utility model can be widely used in single core, twin-core, four-core and various multi-core fiber kapillary tail optical fiber.
Description of drawings:
Accompanying drawing 1 is a prior art constructions synoptic diagram of the present utility model
Accompanying drawing 2 is the cross section structure synoptic diagram of the utility model accompanying drawing 1
Accompanying drawing 3 is a structural representation of the present utility model
Accompanying drawing 4 is the structural representation of the utility model glass capillary
Accompanying drawing 5 is a cross section structure synoptic diagram of the present utility model
Accompanying drawing 6 is the cross section structure synoptic diagram of a plurality of optic fibre holes of the present utility model
Embodiment:
Be embodiment of the present utility model with accompanying drawing 3,4,5 below, the utility model be further detailed:
Embodiment 1: as shown in accompanying drawing 3,4
In the present embodiment, the utility model comprises the optical fiber of glass capillary 12 and the different length-specifics of all kinds, each length-specific optical fiber comprises the optical fiber 14 of bare fibre part 11 and coating, bare fibre part 11 heat of the optical fiber of described each length-specific selection type merge in the aperture 15 of described glass capillary, and the inwall of the aperture 15 of described glass capillary 12 and the outside surface of optical fiber 14 merge and form transition bed.Because being heat, the bare fibre part 11 of described optical fiber merges in the aperture 15 of described glass capillary, therefore in fusion process because of ions diffusion will just merge transition bed of formation naturally with the capillary tube inner wall top layer on the top layer of optical fiber, transition bed has been coupled to one well with optical fiber and kapillary.Although the temperature performance of glass capillary can not compare favourably with optical fiber, though finishing to get back to after the room temperature, top layer of optical fiber and capillary tube inner wall top layer fusion process can cause stress between the optical fiber and kapillary, but the ions diffusion of fusion process has formed a cushion between them, cushion has been eliminated obvious limit between optical fiber and the kapillary.After joint interface was eliminated clearly, also the target of compiling---stress was absorbed, is disperseed the stress that is initiated with regard to lost thereupon.The stress that causes is cushioned layer and absorbs, disperses, thereby optical fiber has been subjected to very effective protection.As long as the environment temperature of device work does not surpass the softening point of glass material capillaceous, no matter how temperature changes fiber cores and overlaps fully with kapillary aperture axle center any variation can never take place, the switching performance and the exchange performance of stability and reliability, the especially interface unit of product have been improved very effectively.
Embodiment 2: as shown in accompanying drawing 5,6
In the present embodiment except that single-core fiber kapillary tail optical fiber, as required two, four or more a plurality of optic fibre hole can be set in described glass capillary, soaking is merged in described several optic fibre holes described bare fibre part 16, is made into twin-core, four-core or the various optical fiber kapillary tail optical fibers of multicore more.The tube wall of described glass capillary 2 can be composited by individual layer, two layers, three layers or compound glass pipe 13.
Other parts of the present utility model are identical with embodiment 1.
Claims (3)
1, a kind of optical fiber kapillary tail optical fiber, it comprises glass capillary (12) and optical fiber, optical fiber comprises the light tail optical fiber (14) of bare fibre part (11) and coating, bare fibre part (11) heat that it is characterized in that described optical fiber merges in the aperture (15) of described glass capillary, and the inwall of the aperture (15) of described glass capillary (12) and the outside surface of bare fibre (14) constitute transition bed in hot fusion process.
2, the optical fiber kapillary tail optical fiber described in claim is characterized in that the aperture that several place optical fiber is set in described glass capillary, and soaking is merged in described several optic fibre holes described bare fibre part (16).
3, the optical fiber kapillary tail optical fiber described in claim 1, the tube wall that it is characterized in that described glass capillary (12) is to be composited by two layers or multilayer glass tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520056288 CN2784950Y (en) | 2005-03-22 | 2005-03-22 | Optical fiber capillary tail fiber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520056288 CN2784950Y (en) | 2005-03-22 | 2005-03-22 | Optical fiber capillary tail fiber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2784950Y true CN2784950Y (en) | 2006-05-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520056288 Expired - Lifetime CN2784950Y (en) | 2005-03-22 | 2005-03-22 | Optical fiber capillary tail fiber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2784950Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007112617A1 (en) * | 2006-04-05 | 2007-10-11 | Dejian Li | Capillary pigtail fiber |
| CN102798948A (en) * | 2012-08-03 | 2012-11-28 | 无锡爱沃富光电科技有限公司 | Capillary tube packaging structure of single-mode optical fiber pigtail |
| CN104880770A (en) * | 2014-02-28 | 2015-09-02 | 福州高意光学有限公司 | Method of welding fibers with different diameters |
| CN105842811A (en) * | 2016-05-25 | 2016-08-10 | 中国科学院力学研究所 | Method and apparatus for long-distance insertion of fiber into capillary tube |
| CN106094112A (en) * | 2016-07-29 | 2016-11-09 | 濮阳光电产业技术研究院 | A kind of system preventing optical fiber pigtail light wave reflection |
-
2005
- 2005-03-22 CN CN 200520056288 patent/CN2784950Y/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007112617A1 (en) * | 2006-04-05 | 2007-10-11 | Dejian Li | Capillary pigtail fiber |
| CN102798948A (en) * | 2012-08-03 | 2012-11-28 | 无锡爱沃富光电科技有限公司 | Capillary tube packaging structure of single-mode optical fiber pigtail |
| CN102798948B (en) * | 2012-08-03 | 2014-05-14 | 无锡爱沃富光电科技有限公司 | Capillary tube packaging structure of single-mode optical fiber pigtail |
| CN104880770A (en) * | 2014-02-28 | 2015-09-02 | 福州高意光学有限公司 | Method of welding fibers with different diameters |
| CN105842811A (en) * | 2016-05-25 | 2016-08-10 | 中国科学院力学研究所 | Method and apparatus for long-distance insertion of fiber into capillary tube |
| CN106094112A (en) * | 2016-07-29 | 2016-11-09 | 濮阳光电产业技术研究院 | A kind of system preventing optical fiber pigtail light wave reflection |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20150322 Granted publication date: 20060531 |