CN202305881U - Multi-core fiber and coupler for a plurality of single-core fibers - Google Patents
Multi-core fiber and coupler for a plurality of single-core fibers Download PDFInfo
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- CN202305881U CN202305881U CN2011204490266U CN201120449026U CN202305881U CN 202305881 U CN202305881 U CN 202305881U CN 2011204490266 U CN2011204490266 U CN 2011204490266U CN 201120449026 U CN201120449026 U CN 201120449026U CN 202305881 U CN202305881 U CN 202305881U
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Abstract
The utility model relates to a multi-core fiber and a coupler for a plurality of single-core fibers, which can realize light coupling of all cores in a plurality of single-core fibers and one multi-core fiber to achieve the function of splitting light and merging beams. The coupler comprises one multi-core fiber and a single-core fiber bundle cone. Firstly, a plurality of single-core fibers are fixed into a beam according to an arrangement mode of the cores of the multi-core fiber; secondly, fused biconical taper is carried out so that the diameter of the wrist of a taper body is close to the section of the multi-core fiber; then vertical cutting is carried out from the taper wrist part; and finally, the multi-core fiber is abutted with the fiber bundle taper through position accurate regulation, so that accurate abutting of the cores of the fiber bundle taper and the cores of the multi-core fiber is realized, and an index-matching fluid is filled in an abutting gap. Meanwhile, light in the cores in the multi-core fiber can be independently coupled to each corresponding fiber in the fiber bundle to achieve the light separation and extraction function. Conversely, light beam merging can be realized. The utility model provides a simple and practical light coupling device between the single-core fibers and the multi-core fiber.
Description
Technical field
The utility model belongs to the fiber coupling technique in the optical fiber technology field, is specifically related to a kind of multi-core fiber and many single-core fiber coupling mechanisms.
Background technology
In fibre system, fiber coupler is a kind of fiber optic passive device that is used to transmit and distribute light signal, is to use one of maximum optical passive component in the fibre system, occupies critical role in optical fiber telecommunications system and sensory field of optic fibre.Fiber coupler generally has following characteristics: the one, and device is made up of optical fiber, belongs to the full fiber type device; The 2nd, the partial wave of light field with close ripple and mainly realize through Mode Coupling; The 3rd, optical signal transmission has directivity.Compare with traditional photo-coupler, it has little, the light weight of volume, and good reliability is with advantages such as optical fiber compatibilities.
Last century the seventies Corning Incorporated low loss fiber that takes the lead in successfully drawing out, this has brought maximum vigor for development of fiber technology, also lays a good foundation for the appearance of fiber coupler.Early stage fiber coupler-joints of optical fibre have been realized the single channel coupling of two multimodes or single-mode fiber, and loss is big and can only directional transmissions.After this, the appearance of chemical corrosion method has realized the diversification of fiber coupler, for design multi-channel optical fibre coupling mechanism provides possibility; Simultaneously, new thought has been injected in the development that appears as fiber coupler of mechanical polishing method.Along with updating of these technology; The kind of coupling mechanism also begins to demonstrate diversity; Like multicore optical fiber coupler, mixed type optical fiber coupling mechanism, photonic crystal and fibre optic grating coupler etc.; These fiber couplers have been realized high capacity, high-speed optical signal transmission, have satisfied human requirement to high quality communication.But the fiber coupler that makes through top method all is separation and the merging that profiling type is coupled and realizes light, and is all influential between each light beam, can light beam be transferred in another fibre core with having influence.For example, the patent No. is a kind of fusion high-density wavelength division multiplexer of 96116575, includes the optical fiber coupling of a plurality of 1x2 or 2x2; The patent No. is plastic optical fibre coupler of 03116156.1 and preparation method thereof, has realized a single core and four synthetic fiber bundle coupling.Obviously, the independent coupled problem of the light in the fibre core of light in each fibre core and many single-core fibers in all unresolved multi-core fiber of these technology.
Summary of the invention
The utility model has proposed a kind of simple and practical multi-core fiber and many single-core fiber coupling mechanisms to the deficiency of prior art.
The utility model comprises a multi-core fiber and single-core fiber bundle awl, in the single-core fiber bundle awl in the fibre core of each single-core fiber and the multi-core fiber each fibre core accurately aim at, fixing, and in the butt joint slit place's filling index-matching fluid.Single-core fiber quantity in the single-core fiber bundle awl is identical with the fibre core number of multi-core fiber, and single-core fiber bundle awl end face diameter and multi-core fiber diameter of section are complementary.
The single-core fiber bundle wimble fraction of the fiber coupler of the utility model has been guaranteed the relative distance between each fibre core in the fused biconical taper process; Avoided the coupling between each fibre core basic mode; Make and do not have the coupling of light and crosstalk the purpose that has reached independent beam split and closed bundle between each light path of coupling mechanism.
It is very simple that the utility model is made, and only needs a unjacketed optical fiber welding to draw awl equipment, multi-core fiber, many single-core fibers and refractive index match liquid.The fibre bundle awl that the utility model becomes through the multifiber fused biconical taper realized multi-core fiber each core light and many single-core fibers each core light independent beam split and close beam function; Have simple in structure, easy to operate, low cost and other advantages, and filled up the blank of prior art.
Description of drawings
Fig. 1 is the synoptic diagram of multi-core fiber and many single-core fiber coupling mechanisms;
Fig. 2 is the diagrammatic cross-section at single-core fiber bundle awl Δ L place;
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is further described.
As shown in Figure 1; Multi-core fiber and many single-core fiber coupling mechanisms comprise a multi-core fiber 3 and a single-core fiber bundle awl; In the single-core fiber bundle awl in the fibre core of each single-core fiber and the multi-core fiber 3 each fibre core accurately aim at, fixing, and in the butt joint slit place's filling index-matching fluid 2.Single-core fiber 1 quantity in the single-core fiber bundle awl is identical with the fibre core number of multi-core fiber 3, and single-core fiber bundle awl end face diameter and multi-core fiber 3 diameter of sections are complementary.
At first be fixed into a branch of according to the arrangement mode of multi-core fiber 3 fibre cores many single-core fibers 1; Fused biconical taper makes the waist diameter of cone close with multi-core fiber 3 then, then from awl waist perpendicular cuts; At last, accurately adjust, multi-core fiber 3 and fibre bundle awl dock, realize accurate aligning of each fibre core of fibre bundle awl and multi-core fiber 3 each fibre core through the position, and in docking the slit filling index-matching fluid 2.Its concrete production method can carry out as follows.
1. at first choose qualified optical fiber, comprise a multi-core fiber 3 and Duo Gen single-core fiber 1, overlay, cutting and cleaning are peeled off in the optical fiber two ends;
2. single-core fiber 1 is fixed into a branch ofly according to the arrangement mode of multi-core fiber 3 fibre cores, fused biconical taper becomes certain cone then.In drawing the awl process, make too near that each fibre core do not lean on, guarantee that the light of each fibre core in the cone can not intercouple;
3. in the Δ L position perpendicular cuts of awl waist, and clean end face, fibre bundle awl end face diameter is complementary with multi-core fiber 3 diameter of sections, and Fig. 2 is the diagrammatic cross-section that the single-core fiber bundle is bored Δ L place;
4. accurately adjust through the position,, and in the butt joint slit, fill index-matching fluid 2 multi-core fiber 3 and fibre bundle awl accurate butt-joint.
Claims (1)
1. a multi-core fiber and many single-core fiber coupling mechanisms comprise a multi-core fiber and a single-core fiber bundle awl, it is characterized in that: the fibre core number of multi-core fiber is identical with the quantity of single-core fiber in the single-core fiber bundle awl; Bundle awl end face diameter is close with the multi-core fiber diameter of section; In the fibre bundle awl in the fibre core of each single-core fiber and the multi-core fiber each fibre core accurately aim at, fixing, and in the butt joint slit place's filling index-matching fluid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204490266U CN202305881U (en) | 2011-11-09 | 2011-11-09 | Multi-core fiber and coupler for a plurality of single-core fibers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204490266U CN202305881U (en) | 2011-11-09 | 2011-11-09 | Multi-core fiber and coupler for a plurality of single-core fibers |
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| Publication Number | Publication Date |
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| CN202305881U true CN202305881U (en) | 2012-07-04 |
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| CN2011204490266U Expired - Fee Related CN202305881U (en) | 2011-11-09 | 2011-11-09 | Multi-core fiber and coupler for a plurality of single-core fibers |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103135166A (en) * | 2013-03-22 | 2013-06-05 | 清华大学 | Optical fiber capable of improving energy concentration inside optical fiber |
| CN104422988A (en) * | 2013-08-20 | 2015-03-18 | 湖北工业株式会社 | Optical connector, method for manufacturing the same, and mold container for manufacturing the same |
| WO2015081759A1 (en) * | 2013-12-03 | 2015-06-11 | 方笑尘 | A high-power optical fiber power combiner |
| WO2015081758A1 (en) * | 2013-12-05 | 2015-06-11 | 方强 | A high-power optical fiber head, collimator, isolator and frequency combiner |
| CN105204119A (en) * | 2015-10-22 | 2015-12-30 | 华中科技大学 | Preparation method for multi-core optical fiber coupler based on micropore processing |
| CN105452922A (en) * | 2013-08-06 | 2016-03-30 | 莱尼电缆控股有限公司 | Optical coupler for a multicore fiber |
| CN107015310A (en) * | 2017-05-11 | 2017-08-04 | 武汉市艾玻睿光电科技有限公司 | A kind of Multi-channel interferometer based on multi-core fiber core shift welding and preparation method thereof |
| CN109060726A (en) * | 2018-08-06 | 2018-12-21 | 天津大学 | On-line normalization formula multi-core optical fiber spr sensor |
| CN111025478A (en) * | 2019-11-20 | 2020-04-17 | 桂林电子科技大学 | Single-mode fiber and coaxial double-waveguide fiber coupler with controllable light splitting ratio |
| CN111290075A (en) * | 2020-03-27 | 2020-06-16 | 华中科技大学 | Single-mode optical fiber and multi-core optical fiber coupler |
| CN112099156A (en) * | 2020-09-11 | 2020-12-18 | 烽火通信科技股份有限公司 | Optical fiber bundle sleeve and preparation method thereof, and preparation method of multi-core optical fiber coupler |
| CN114721091A (en) * | 2022-04-24 | 2022-07-08 | 复旦大学 | Functional device for realizing multimode fiber single-mode transmission and preparation method thereof |
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2011
- 2011-11-09 CN CN2011204490266U patent/CN202305881U/en not_active Expired - Fee Related
Cited By (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103135166B (en) * | 2013-03-22 | 2014-11-26 | 清华大学 | Optical fiber capable of improving energy concentration inside optical fiber |
| CN103135166A (en) * | 2013-03-22 | 2013-06-05 | 清华大学 | Optical fiber capable of improving energy concentration inside optical fiber |
| US9753221B2 (en) | 2013-08-06 | 2017-09-05 | Leoni Kabel Holding Gmbh | Optical coupler for a multicore fiber |
| CN105452922A (en) * | 2013-08-06 | 2016-03-30 | 莱尼电缆控股有限公司 | Optical coupler for a multicore fiber |
| CN105452922B (en) * | 2013-08-06 | 2017-05-31 | 莱尼电缆控股有限公司 | For the optical coupler of many core fibres |
| CN104422988A (en) * | 2013-08-20 | 2015-03-18 | 湖北工业株式会社 | Optical connector, method for manufacturing the same, and mold container for manufacturing the same |
| CN104422988B (en) * | 2013-08-20 | 2019-09-24 | 湖北工业株式会社 | Light connects element and its manufacturing method and light connects element die for manufacturing container |
| WO2015081759A1 (en) * | 2013-12-03 | 2015-06-11 | 方笑尘 | A high-power optical fiber power combiner |
| WO2015081758A1 (en) * | 2013-12-05 | 2015-06-11 | 方强 | A high-power optical fiber head, collimator, isolator and frequency combiner |
| CN105204119B (en) * | 2015-10-22 | 2018-03-09 | 华中科技大学 | A kind of multicore optical fiber coupler preparation method based on capillary processing |
| CN105204119A (en) * | 2015-10-22 | 2015-12-30 | 华中科技大学 | Preparation method for multi-core optical fiber coupler based on micropore processing |
| CN107015310A (en) * | 2017-05-11 | 2017-08-04 | 武汉市艾玻睿光电科技有限公司 | A kind of Multi-channel interferometer based on multi-core fiber core shift welding and preparation method thereof |
| CN107015310B (en) * | 2017-05-11 | 2020-06-30 | 武汉市艾玻睿光电科技有限公司 | Multi-channel interferometer based on multi-core optical fiber core-shifting fusion and preparation method thereof |
| CN109060726A (en) * | 2018-08-06 | 2018-12-21 | 天津大学 | On-line normalization formula multi-core optical fiber spr sensor |
| CN109060726B (en) * | 2018-08-06 | 2020-12-15 | 天津大学 | On-line transmission type multi-core optical fiber SPR sensor |
| CN111025478A (en) * | 2019-11-20 | 2020-04-17 | 桂林电子科技大学 | Single-mode fiber and coaxial double-waveguide fiber coupler with controllable light splitting ratio |
| CN111290075A (en) * | 2020-03-27 | 2020-06-16 | 华中科技大学 | Single-mode optical fiber and multi-core optical fiber coupler |
| CN111290075B (en) * | 2020-03-27 | 2021-04-20 | 华中科技大学 | Single-mode optical fiber and multi-core optical fiber coupler |
| CN112099156A (en) * | 2020-09-11 | 2020-12-18 | 烽火通信科技股份有限公司 | Optical fiber bundle sleeve and preparation method thereof, and preparation method of multi-core optical fiber coupler |
| CN112099156B (en) * | 2020-09-11 | 2022-03-25 | 烽火通信科技股份有限公司 | Optical fiber bundle sleeve and preparation method thereof, and preparation method of multi-core optical fiber coupler |
| CN114721091A (en) * | 2022-04-24 | 2022-07-08 | 复旦大学 | Functional device for realizing multimode fiber single-mode transmission and preparation method thereof |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120704 Termination date: 20151109 |