CN102841408A - Production technology of optical fiber combiner based on capillary tube - Google Patents
Production technology of optical fiber combiner based on capillary tube Download PDFInfo
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- CN102841408A CN102841408A CN2011101699081A CN201110169908A CN102841408A CN 102841408 A CN102841408 A CN 102841408A CN 2011101699081 A CN2011101699081 A CN 2011101699081A CN 201110169908 A CN201110169908 A CN 201110169908A CN 102841408 A CN102841408 A CN 102841408A
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Abstract
The invention relates to a production technology of an optical fiber combiner based on a capillary tube. The technology comprises the following steps of: 1) obtaining bundle fiber bundles; 2) bundling and arranging the bundle fiber bundles obtained from the step 1) by the capillary tube and forming the capillary tube which is internally embedded with the bundle fiber bundles; 3) carrying out beam combining treatment on the capillary tube internally embedded with the bundle fiber bundles obtained from the step 2) and forming a cone-shape optical waveguide. According to the invention, the production technology of the optical fiber combiner based on the capillary tube, which is convenient to fix and easy to taper, can greatly reduce energy loss in a laser combining process, and can improve a power bearing level of a beam combiner, is provided.
Description
Technical field
The invention belongs to the fiber coupling technique field, relate to a kind of preparation technology of optical-fiber bundling device, relate in particular to a kind of working method based on optical-fiber bundling device capillaceous.
Background technology
Optical-fiber bundling device (coupling mechanism) is that multi-path laser is coupled into an optical fiber; With the photosynthetic passive optical device that becomes one road light of multichannel, Primary Component especially all is absolutely necessary in pumping coupling technique field, the communicate optical signal combiner field of high-capacity optical fiber laser.
Develop rapidly along with the full fiberize process of high-capacity optical fiber laser; And the realization of multikilowatt, myriawatt level full-optical-fiber laser; Load power level to optical-fiber bundling device is had higher requirement, and demands having in full optical-fiber bundling device field the breakthrough of new revolution and technology urgently.
The prepared of optical-fiber bundling device roughly is divided into three kinds of technical schemes: grinding and polishing method, etch and pyrometric cone method.The grinding and polishing method is exactly that the optical fiber that removes coat is carried out grinding and polishing according to the certain curvature and the grinding and polishing degree of depth, and then that grinding and polishing is good optical fiber splices, and realizes between the optical fiber coupling of mould field and swashs combiner; Etch is to adopt chemical corrosion reagent such as HF will wait that the bare fibre covering that closes bundle erodes a part, and the corrosion area twisting is intertwined, and realizes laser coupled and closes bundle; The pyrometric cone method is with waiting be coupled bare fibre proper alignment and boundling; Bundle shape fibre bundle that formation rule is piled up; Then a bundle shape fibre bundle heating is made it to dissolve, apply pulling force at the fibre bundle two ends simultaneously, make fusion tie the drawing of shape fibre bundle and be taper; Form conical optical waveguide, realize the coupling of laser and close bundle.
At present, the pyrometric cone method has realized the optical fibre device of big load power, as in the world 7 * 1,19 * 1, the method for the fused biconical taper that all adopts of many moneys multimode pump combiner product such as (6+1) * 1, this also is the main flow method for making of optical-fiber bundling device.
In the world, be to adopt the method for fused biconical taper, for example PCT patent: WO2007/090272 with ITF company business-like (6+1) * 1 multimode optical fiber pump combiner; Domestic patent: 200780009246; In the suitable place cutting of the thickness of centrum, realize welding with the coupled fiber of treating of the identical thickness of another root, accomplish the bundle that closes of 6 road laser; At present the high-mechanic power of the single armed of ITF Lab Inc. (6+1) * 1 bundling device has surpassed 200 watts, is representing the industry highest level.But in this technical scheme, multifiber realization boundling and regularly arranged difficulty are big, not only need draw awl, also need the pumping optical fiber twisting be twined, necessary online cutting, welding, and very high to the MEMS requirement, difficulty is bigger.
Internal optical fiber bundling device field, bright light science and technology have adopted the method for optical fiber grinding and polishing, splicing, sintering to carry out the preparation of (N+1) * 1 optical-fiber bundling device, for example patent: 200920132578.7, and its high-mechanic power is 100 watts, represent the domestic highest level of industry.Big nation's laser is bonding and polishing with multiple beams of optical fiber laser, adopts the reflective coupling scheme of multi-path laser, realizes swashing combiner, for example patent: 200910110240.6.Chinese Academy of Sciences's semiconducter research adopts the grinding and polishing method, with the grinding and polishing of two homotype optical fiber, splicing, cutting, forms the multi-stage fiber bundling device of fork type, for example patent: 200510126432.8.At present domestic in urgent need to be improved in the MEMS field, cause present overall technology level low.
Summary of the invention
In order to solve the above-mentioned technical matters that exists in the background technology, the invention provides and a kind ofly be convenient to fix, draw easily awl, can significantly reduce energy loss that swashs in the combiner process and the production technology based on optical-fiber bundling device capillaceous that can improve bundling device power load level.
Technical solution of the present invention is: the invention provides a kind of production technology based on optical-fiber bundling device capillaceous, its special character is: said production technology based on optical-fiber bundling device capillaceous may further comprise the steps:
1) obtains a bundle shape fibre bundle;
2) adopt kapillary that resulting bundle of shape fibre bundle of step 1) carried out boundling and arrangement, form the kapillary of embedded bundle of shape fibre bundle;
3) to step 2) kapillary of resulting embedded bundle of shape fibre bundle closes bundle and handles, and forms conical optical waveguide.
Above-mentioned optical fiber is multimode pumping optical fiber and/or Transmission Fibers.
When said optical fiber is multimode pumping optical fiber or Transmission Fibers when 1 bundling device (preparation N *), the concrete implementation of said step 1) is:
1.1.1) obtain at least two optical fiber of prestretching system;
1.1.2) arbitrary end of the optical fiber of prestretching system is removed coat, form the optical fiber of the prestretching system of bare fibre section;
1.1.3) the bare fibre section drawing of bare fibre section is taper, form the optical fiber of taper prestretching system;
1.1.4) with step 1.1.3) optical fiber of resultant taper prestretching system rule stacks and be a bundle shape fibre bundle.
When said optical fiber is multimode pumping optical fiber and Transmission Fibers (during the bundling device of preparation (N+1) * 1), the concrete implementation of said step 1) is:
1.2.1) obtain the optical fiber of prestretching system; Said optical fiber comprises a Transmission Fibers and at least two multimode pumping optical fibers;
1.2.2) arbitrary end of multimode pumping optical fiber is removed coat, form the pumping optical fiber of bare fibre section;
1.2.3) the bare fibre section of the pumping optical fiber of bare fibre section drawn be taper to form tapered pump fibers;
1.2.4) arbitrary end of Transmission Fibers is removed coat, form the Transmission Fibers of bare fibre section;
1.2.5) with step 1.2.3) resulting tapered pump fibers and step 1.2.4) the coat alignment of Transmission Fibers of resulting bare fibre section; Make the bare fibre section of pumping optical fiber tightly rely on the bare fibre section Transmission Fibers around, rule is piled up and is a bundle shape fibre bundle.
Above-mentioned steps 1.2.5) tightly symmetrical ring is around the Transmission Fibers of bare fibre section for the bare fibre section of pumping optical fiber in, and rule is piled up and is a bundle shape fibre bundle.
Above-mentioned steps 2) kapillary to the concrete implementation that resulting bundle of shape fibre bundle of step 1) carries out boundling and arrangement is in: bundle shape fibre bundle that said step 1) obtains directly inserts in the kapillary.
The concrete mode of closing the bundle processing above-mentioned steps 3) is: the kapillary to embedded bundle of shape fibre bundle adds hot-drawn awl, cutting and welding.
Above-mentioned material capillaceous is quartz or glass.
Advantage of the present invention is:
The invention provides a kind of production technology based on optical-fiber bundling device capillaceous; This production technology adopts the technical scheme of drawing awl earlier an end of N root multimode pumping optical fiber to be removed coat and drawing is taper; Symmetry is arranged around an end and removes around the Transmission Fibers of coat; Bundle shape fibre bundle that formation rule is arranged, and make Transmission Fibers length be longer than tapered pump fibers length; To tie the shape fibre bundle and penetrate in the ready prestretching system kapillary, and make the tapering part of pumping optical fiber be in prestretching system straight tube capillaceous district, pumping optical fiber taper reference position begins from bundle shape fibre bundle; The kapillary of embedded bundle of shape fibre bundle is drawn awl; Make a bundle shape fibre bundle, kapillary outer wall combine together, form conical optical waveguide, the pump light that satisfies the taper propagation conditions in the N root optical fiber is just under the guiding of conical optical waveguide; Be coupled into Transmission Fibers, realize closing beam function.Transmission Fibers and an other Transmission Fibers with the centrum right side realizes the low-loss welding then, just realized closing the conduction of bundle back pump light.Again kapillary, optical fiber, fusing point are fixed with glue, after the metal shell encapsulation, just accomplished (N+1) * 1 optical-fiber bundling device preparation of devices.
The present invention has overcome in the traditional approach, to optical fiber arrangement, clamping, draw the difficulty of awl inconvenience, has adopted the glass tube method for making; Make optical fiber arrangement more rule simultaneously, abandoned the rotation of complicacy in the traditional approach and drawn the awl method with convenient; Adopt the one dimension straight line to draw awl, reduced the complexity of MEMS.This method has been avoided tradition and has been drawn the shortcoming in (or optically-coupled zone) in the cone optical waveguide of fusing point in awl, cutting, the welding process; The weld of final centrum and another root Transmission Fibers is placed the single Transmission Fibers section of structure; Keep the globality of conical optical waveguide, reduced optical coupling loss, strengthened heat seal strength; Protect fusing point safety, promoted the power load level of optical-fiber bundling device.In addition, this method adopts quartz capillary that optical fiber is carried out boundling, arrangement, clamping, and is simple efficient; Overcome the fixedly high shortcoming of difficulty of traditional approach boundling, arrangement and drawing point position, have realize fused biconical taper easily, draw the awl advantage of uniform, can significantly reduce the energy loss that swashs in the combiner process; Improve bundling device power load level; For the more high-power pumping of realization fiber laser, and improve optical-fiber laser power output level, have crucial effects.Method provided by the present invention is mainly used in the pumping coupling of high power full optical fiber optical optical fibre laser; Method based on fused biconical taper; Realize the preparation of high-mechanic power (N+1) * 1 optical-fiber laser pump combiner; For the high power full-optical-fiber laser provides the efficient pumping coupling solutions scheme of determining, significantly improve the power output level of full-optical-fiber laser.
Description of drawings
Fig. 1 is the multimode pumping optical fiber synoptic diagram of taper;
Fig. 2 is the signal transmission fiber synoptic diagram after an end removes coat;
Fig. 3 is that many pumping optical fibers are symmetrically distributed in Transmission Fibers bundle shape fibre bundle all around;
Fig. 4 is the synoptic diagram (prestretching system kapillary) after kapillary once draws awl;
Fig. 5 is that a bundle shape fibre bundle penetrates prestretching system kapillary synoptic diagram;
Fig. 6 is the synoptic diagram after the kapillary of embedded bundle of shape fibre bundle draws awl;
Fig. 7 is that secondary draws awl fibre bundle vertebra and the welding synoptic diagram of another Transmission Fibers later;
Fig. 8 is the fibre bundle awl cutting back and another Transmission Fibers welding synoptic diagram after secondary draws awl;
Embodiment
The invention provides a kind of novel optical-fiber bundling device kapillary and draw the awl method for making; Developed a (N+1) * 1 optical-fiber laser pump combiner, this optical-fiber bundling device mainly closes Shu Wenti with solving optical fiber laser pump, realizes the high-power semiconductor laser pumping of fiber laser; Different with traditional fused biconical taper method is; In this programme, adopt the external frame of quartzy materials such as (or) glass kapillary as a bundle shape fibre bundle (the multimode pumping optical fiber of N root taper is stacked with 1 Transmission Fibers rule and is a bundle shape fibre bundle), awl is drawn in completion to kapillary; Also the integral body of bundling optical fiber is drawn awl with regard to having realized; Tie shape fibre bundle and capillary wall and combine together, thereby form conical optical waveguide, realize the bundle that closes of multi-path laser.
Multimode pumping optical fiber, formed bundle of shape fibre bundle of 1 signal transmission fiber of drawing awl to accomplish N root taper afterwards are a quartzy centrum with prestretching system kapillary by drawing; This centrum self is exactly a conical optical waveguide; Every laser that satisfies cone inner laser transmission conditions all will be coupled into signal transmission fiber; Like this; Pumping laser in the N root multimode pumping optical fiber constrains in multi-channel optical fibre laser in the middle of the waveguide of Transmission Fibers covering under the effect of circular cone optical waveguide, and bundle is closed in the realization pumping.Then,, again centrum and fusing point are carried out precision and encapsulate, it is protected, just accomplished the preparation of (N+1) * 1 optical-fiber laser pump combiner drawing a centrum and an other signal transmission fiber behind the awl to realize welding.
In this method, need N root multimode pumping optical fiber, 2 double clad signal Transmission Fibers, a quartz (or glass) kapillary.
At first the end with N root multimode pumping optical fiber removes coat, and partly draws awl to be taper the bare fibre of N root pumping optical fiber, forms tapered pump fibers, and is as shown in Figure 1.
Simultaneously, an end of double clad signal Transmission Fibers is also removed coat, as shown in Figure 2, the double clad signal Transmission Fibers external diameter of wherein removing coat is Φ.Guarantee that simultaneously Transmission Fibers goes the length of coat will be longer than pumping optical fiber and go coat and taper length summation.
Coat alignment with N root multimode pumping optical fiber and 1 signal transmission fiber; Around making the bare fibre section of multimode pumping optical fiber tightly symmetrical ring removing the coat section around Transmission Fibers; Rule is piled up for a bundle shape fibre bundle, shown in Fig. 3 (a), wherein; The coat end that goes of signal transmission fiber will be longer than several centimetres of taper multimode pumping optical fibers, and establishing its external diameter full-size is d; Because the coat strip length is longer, optical fiber has pliable and tough characteristic, externally under the effect of constraining force (like the capillary exit constraining force), the bare fibre of bundle shape fibre bundle partly closely cooperates, and does not have the space, so the cross section of bare fibre section is shown in Fig. 3 (b).
Then, selecting internal diameter is the kapillary of d, and it is the kapillary of d that bundle shape fibre bundle shown in Fig. 3 (a) is inserted internal diameter; If not have lucky internal diameter is the kapillary of d, can select internal diameter is that (D＞d), it is drawn awl draws it for internal diameter is the kapillary of d, and is as shown in Figure 4, and thicker like this kapillary is just by the prestretching system kapillary of drawing for dumbbell shape for the kapillary of D.
Regularly arranged bundle shape fibre bundle (like Fig. 3 (a)) is inserted prestretching system kapillary (like Fig. 4), makes the tapering part of multimode pumping optical fiber place prestretching system capillary midsection, like Fig. 5 mistake! Do not find Reference source.Shown in.
The prestretching system kapillary two ends of embedded bundle of shape fibre bundle are picked up with anchor clamps, apply suitable reversal interlocking relay, from prestretching system capillary midsection; Be the initial part of centrum of N root multimode pumping optical fiber, begin the prestretching system kapillary of embedded bundle of shape fibre bundle is drawn awl, for the second time to the awl that draws capillaceous; Move prestretching system straight tube section capillaceous to Φ from inner diameter d, the bottom of awl is consistent with the external diameter after signal transmission fiber removes coat, simultaneously; The awl point that guarantees N root multimode pumping optical fiber all is absorbed in the centrum that prestretching system kapillary draws for the second time; Combine together with prestretching system tube wall capillaceous, form conical optical waveguide jointly, can be coupled into Transmission Fibers as long as meet the pump light of circular cone optical waveguide transmission condition; Realize the bundle that closes of N root pumping laser, as shown in Figure 6.
Secondary draws after the awl, and the signal transmission fiber of centrum is realized welding with an other signal transmission fiber again, has just realized the coupling process of N road pumped fiber laser, and is as shown in Figure 7.During welding, shorter if the Transmission Fibers of welding termination is exposed kapillary, then can the quartz capillary of welding end be excised one section, realize welding.
Then, whole centrum, kapillary, fusing point are encapsulated together, accomplish support, protection and heat radiation, just accomplished the preparation of (N+1) * 1 pumped fiber bundling device device.
The present invention closes the bundle technology for the pumping of high-capacity optical fiber laser new thinking and technical scheme is provided, and lays a good foundation for realizing more high-power optical-fiber laser power output.
Core of the present invention is to adopt optical fiber implementation rule boundling and the arrangement of quartzy (or glass etc.) kapillary to prestretching system; Kapillary to embedded bundle of shape fibre bundle (Fig. 3 (a)) draws awl, cutting, welding then, and realization N road laser coupled is gone into the technical scheme of an optical fiber.Every method that adopts the kapillary fused biconical taper, prepares bundling device that relates to is all within this patent interest field.This programme is not only applicable to the preparation of (N+1) * 1 optical-fiber bundling device, also is applicable to the preparation of N * 1 pump combiner, laser bundling device.Not only can adopt the profile pump optical-fiber bundling technical scheme of Fig. 7 in this programme, also can adopt the end pumping optical-fiber bundling technical scheme of cutting, welding, like Fig. 8 mistake! Do not find Reference source.Shown in.
With (6+1) * 1 optical-fiber laser pump combiner is example, introduces optical-fiber bundling device kapillary method for making in detail.Wherein signal transmission fiber core diameter/covering/coat external diameter is 20/400/550um, and multimode pumping fibre cladding and coat external diameter are 105/125um.At first; Select 6 multimode pumping optical fibers, the one of which end is removed coat, the end drawing with every multimode pumping optical fiber is taper as shown in Figure 1 then; Guarantee that simultaneously between 6 multimode pumping optical fibers, pumping optical fiber goes coat section 2 consistent with the length of pumping optical fiber tapered segment 3.Prepare a signal transmission fiber then; Remove an end coat; As shown in Figure 2, guarantee that the coat section length of going of Transmission Fibers goes the coat section 2 and the total length of pumping optical fiber tapered segment 3 to grow several centimetres again, convenient follow-up welding operation than pumping optical fiber.Then; Ready 6 taper multimode pumping optical fibers are close to around the signal transmission fiber, and symmetry is piled up for a bundle shape fibre bundle, shown in Fig. 3 (a); Simultaneously; The coat aligned in position of 6 multimode pumping optical fibers and 1 Transmission Fibers guarantees that Transmission Fibers is than long several centimetres of multimode pumping optical fiber in bundle shape fibre bundle.In regularly arranged (6+1) bundle shape fibre bundle, external diameter full-size is d, owing to go coat length longer; Optical fiber itself has pliable and tough characteristic, and under the effect of capillary exit constraining force, the bare fibre of bundle shape fibre bundle partly closely cooperates; Do not have the space, the cross section is shown in Fig. 3 (b).Be ready to the quartz that internal diameter is d (or glass) kapillary, it is the kapillary of d that bundle shape fibre bundle shown in Fig. 3 (a) is inserted internal diameter; Be the generalization more that this patent is introduced, this example adopts the prestretching system kapillary (like Fig. 4) of dumbbell shape to carry out the bundling device preparation.Ready bundle of shape fibre bundle inserted in the prestretching system kapillary of dumb-bell shape, bundle shape fibre bundle position definite in kapillary, the middle part that is in dumbbell shape prestretching system straight tube capillaceous district with the tapered zone of multimode pumping optical fiber fully is as the criterion, like Fig. 5 mistake! Do not find Reference source.Shown in.Then, begin a bundle shape fibre bundle is drawn awl with prestretching system kapillary, secondary capillaceous draws awl; Draw the awl reference position to begin from the centrum reference position of multimode pumping optical fiber (Fig. 1), direction draws the awl diameter to be drawn to Φ from inner diameter d towards the awl point; The outside dimension that makes centrum bottom is consistent with the outside dimension after Transmission Fibers is removed coat; The awl point that guarantees 6 multimode pumping optical fibers all is absorbed in the centrum that prestretching system kapillary draws for the second time, and 6 multimode pumping optical fibers, Transmission Fibers, prestretching system tube walls capillaceous combine together, the waveguide of formation taper pump light; The pump light that satisfies the certain pore size angle can be coupled into Transmission Fibers, and is as shown in Figure 6.
In this patent, the main preparation of introducing (N+1) * 1 optical-fiber laser pump combiner is equally applicable to the preparation that the optical-fiber bundling device of other models is waited in N * 1, and all kapillary preparation methods.Among the present invention, the preparation scheme of bundling device, about the Transmission Fibers model consistent; The Transmission Fibers model that alternative is held about also can being is inconsistent.For example as: the 20/105/125um Transmission Fibers is adopted in the left side, and the 20/400/550um Transmission Fibers is adopted on the right side.Other examples are suitable for too.Among the present invention, the method that kapillary adopts secondary to draw awl; If can find internal diameter size and the consistent kapillary of outside dimension of tying the shape fibre bundle, also can replace secondary and draw the awl scheme.In this programme, not only can adopt the profile pump optical-fiber bundling technical scheme of Fig. 7, also can adopt the end pumping optical-fiber bundling technical scheme of drawing awl, cutting, welding, like Fig. 8 mistake! Do not find Reference source.Shown in.Be about to secondary and draw the place of the awl suitable thickness of centrum later to cut,, accomplish the preparation of pumping optical fiber laser bundling device from the place and the other Transmission Fibers realization low-loss welding of cutting.Like Fig. 8 mistake! Do not find Reference source.Shown in.Kapillary adopts quartz capillary, also can adopt the kapillary of other materials.The kapillary method for making of this programme; Not only be applicable to the preparation technology of bundling device; Be applicable to that too (promptly an optical fiber is divided into some optical fiber to beam splitter; One road flashlight is divided into the Passive Optical Components of several flashlight) preparation technology, all employing kapillaries draw the awl technology the beam splitter preparation method also within this patent interest field.
Claims (8)
1. production technology based on optical-fiber bundling device capillaceous, it is characterized in that: said production technology based on optical-fiber bundling device capillaceous may further comprise the steps:
1) obtains a bundle shape fibre bundle;
2) adopt kapillary that resulting bundle of shape fibre bundle of step 1) carried out boundling and arrangement, form the kapillary of embedded bundle of shape fibre bundle;
3) to step 2) kapillary of resulting embedded bundle of shape fibre bundle closes bundle and handles, and forms conical optical waveguide.
2. the production technology based on optical-fiber bundling device capillaceous according to claim 1 is characterized in that: said optical fiber is multimode pumping optical fiber and/or Transmission Fibers.
3. the production technology based on optical-fiber bundling device capillaceous according to claim 2 is characterized in that: when said optical fiber was multimode pumping optical fiber or Transmission Fibers, the concrete implementation of said step 1) was:
1.1.1) obtain at least two optical fiber of prestretching system;
1.1.2) arbitrary end of the optical fiber of prestretching system is removed coat, form the optical fiber of the prestretching system of bare fibre section;
1.1.3) the bare fibre section drawing of bare fibre section is taper, form the optical fiber of taper prestretching system;
1.1.4) with step 1.1.3) optical fiber of resultant taper prestretching system rule stacks and be a bundle shape fibre bundle.
4. the production technology based on optical-fiber bundling device capillaceous according to claim 3 is characterized in that: when said optical fiber was multimode pumping optical fiber and Transmission Fibers, the concrete implementation of said step 1) was:
1.2.1) obtain the optical fiber of prestretching system; Said optical fiber comprises a Transmission Fibers and at least two multimode pumping optical fibers;
1.2.2) arbitrary end of multimode pumping optical fiber is removed coat, form the pumping optical fiber of bare fibre section;
1.2.3) the bare fibre section of the pumping optical fiber of bare fibre section drawn be taper to form tapered pump fibers;
1.2.4) arbitrary end of Transmission Fibers is removed coat, form the Transmission Fibers of bare fibre section;
1.2.5) with step 1.2.3) resulting tapered pump fibers and step 1.2.4) the coat alignment of Transmission Fibers of resulting bare fibre section; Make the bare fibre section of pumping optical fiber tightly rely on the bare fibre section Transmission Fibers around, rule is piled up and is a bundle shape fibre bundle.
5. the production technology based on optical-fiber bundling device capillaceous according to claim 4; It is characterized in that: tightly symmetrical ring is around the Transmission Fibers of bare fibre section for the bare fibre section of pumping optical fiber said step 1.2.5), and rule is piled up and is a bundle shape fibre bundle.
6. according to claim 1 or 2 or 3 or 4 or 5 described production technologies based on optical-fiber bundling device capillaceous, it is characterized in that: kapillary to the concrete implementation that resulting bundle of shape fibre bundle of step 1) carries out boundling and arrangement is said step 2): bundle shape fibre bundle that said step 1) obtains directly inserts in the kapillary.
7. the production technology based on optical-fiber bundling device capillaceous according to claim 6 is characterized in that: the concrete mode of closing the bundle processing in the said step 3) is: the kapillary to embedded bundle of shape fibre bundle adds hot-drawn awl, cutting and welding.
8. the production technology based on optical-fiber bundling device capillaceous according to claim 7 is characterized in that: said material capillaceous is quartz or glass.
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| CN110082322A (en) * | 2018-12-25 | 2019-08-02 | 华中科技大学 | A kind of preparation method of optical fiber probe Fluorescence Spectrometer and optical fiber probe |
| CN110235035A (en) * | 2017-01-25 | 2019-09-13 | Tdk株式会社 | Optically coupled device |
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| CN113671509A (en) * | 2021-08-16 | 2021-11-19 | 南京牧镭激光科技有限公司 | Large-energy multichannel laser radar beam switching method |
| CN115236864A (en) * | 2022-09-08 | 2022-10-25 | 中国工程物理研究院激光聚变研究中心 | High-beam-quality optical fiber laser beam combiner |
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