CN201656240U - Fiber pump combiner - Google Patents
Fiber pump combiner Download PDFInfo
- Publication number
- CN201656240U CN201656240U CN2010201464299U CN201020146429U CN201656240U CN 201656240 U CN201656240 U CN 201656240U CN 2010201464299 U CN2010201464299 U CN 2010201464299U CN 201020146429 U CN201020146429 U CN 201020146429U CN 201656240 U CN201656240 U CN 201656240U
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- quartz glass
- cylindrical hole
- optical fibre
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- input optical
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Abstract
The utility model discloses a fiber pump combiner, which is applied to a high-power fiber laser or a fiber amplifier. The fiber pump combiner comprises a quartz glass, a double-cladding output fiber and a plurality of pump input fibers; wherein, the output end of the quartz glass is welded with the inner cladding of the double-cladding output fiber and the input end thereof is provided with a polygonal cylindrical hole; the plurality of pump input fibers are closely arranged to be a polygonal structure which matches with the polygonal cylindrical hole, of which the ends are embedded into the polygonal cylindrical hole of the quartz glass to be combined with the quartz glass through a refractive index matching glue. The fiber pump combiner has the advantages of simple technology, good stability, high yield, optical performance and the like.
Description
Technical field
The utility model relates to optical-fiber bundling device, relates in particular to a kind of pumped fiber bundling device that is applied to high-capacity optical fiber laser or fiber amplifier.
Technical background
The cladding pumping coupling technique of fiber laser has immeasurable effect to decision fiber laser performance and level.The pumped fiber coupled apparatus that is used for high-power full-optical-fiber laser uses under very high power condition, and its coupling efficiency must be very high, and loss must be very little, and the power that bears must be very big, and the way of input light also needs many as much as possible.Under so numerous maximum conditions required, the pumping coupler spare of making high-quality had very high difficulty, and but, the methods of realization are also varied, and this is a challenging technology.Development trend from high power fiber laser, also require pumping coupler spare when pump light is coupled to inner cladding, do not influence and damage as far as possible the fibre core of double clad output optical fibre, because only in this way could under the situation of generation that does not influence signal laser and transmission, realize the cascade pumping, realize the output of super high power.
At present, the pump mode that adopts of double clad high-capacity optical fiber laser mainly contains two kinds of end pumping and side-pumpings.In existing end pumping technology, the number of patent application of announcing as State Intellectual Property Office is a kind of N * 1 optical-fiber bundling device of 200420074890.2, with many pumping input optical fibre fused biconical tapers, cutting, again with the welding of double clad output optical fibre, complex manufacturing technology, and cutting, welding difficulty are bigger, the reverse isolation poor performance; In the existing profile pump technology, the number of patent application of announcing as State Intellectual Property Office is 03141900.3 double-clad optical fiber laser side coupling pump pump apparatus, inner cladding at doubly clad optical fiber, the optical cement unification is coated with the V-arrangement prism of highly reflecting films in the V-shaped groove that surrounding layer and overlay are offered, pump light focuses on the inner cladding of coupled into double-clad fiber on the plated film face of V-arrangement prism through set of lenses, and transmit by inner cladding, can be embedded the identical device coupling multi beam pump light of a plurality of structures at a plurality of positions of doubly clad optical fiber, this manufacture method technological requirement height, and less stable.
Therefore, the pumped fiber bundling device how manufacture craft is simple and pumping efficiency is high is a technical problem that needs to be resolved hurrily in the industry.
The utility model content
For solving existing optical-fiber bundling device complex manufacturing technology, the insecure technical problem of performance, the utility model provides a kind of pumped fiber bundling device, and by architecture advances, it makes simple and pumping coupling efficiency height.
For solveing the technical problem, the technical scheme that the utility model provides is: a kind of novel optical fiber pump combiner comprises many pumping input optical fibres, quartz glass and double clad output optical fibre.The inner cladding welding of described quartz glass output and double clad output optical fibre; Described quartz glass input is provided with a polygon cylindrical hole; Described many pumping input optical fibre ends are concordant, closely are arranged in the cross section and are polygonal structure, and be embedded in the aforementioned polygon cylindrical hole, and the place, slit between pumping input optical fibre and polygon cylindrical hole is filled with refractive index match glue.The many concordant front ends of pumping input optical fibre form by cutting or grinding.
Described many pumping input optical fibre ends are by the structure of refractive index match glue bond or the structure of flame sintering each other.
Described quartz glass is column, and its output diameter is less than input, and quartz glass output and double clad output optical fibre size are adaptive, and diameter shrinks gradually between quartz glass output and the input.
When described pumping input optical fibre quantity was seven, the polygon cylindrical hole of quartz glass input was the hexagon cylindrical hole, and seven pumping input optical fibre end arranged cells become adaptive with it cross section to be the structure of hexagon cylindricality.Promptly constitute 7 * 1 optical-fiber bundling device products.
When described pumping input optical fibre quantity was square number, the polygon cylindrical hole of quartz glass input was square cylindrical hole, and many pumping input optical fibre end arranged cells become the structure of adaptive with it square cylindricality.
In other execution mode of the present utility model, described quartz glass output can be with reference to the molten respective diameters of moving to of the inner cladding of double clad output optical fibre, with the direct welding of double clad output optical fibre, the polygon cylindrical hole of described quartz glass input can be processed into various different sizes as requested, described many pumping input optical fibres closely are arranged in corresponding polygonized structure as requested, embed the polygon cylindrical hole of quartz glass, and close, thereby make the N * 1 optical-fiber bundling device product of all size by the refractive index match gluing.
Compared with prior art, manufacture craft of the present utility model is simple, handles accordingly, is connected by quartz glass input, output, can make the pumped fiber bundling device of plurality of specifications.Pumping input optical fibre and double clad output optical fibre need not carry out complicated PROCESS FOR TREATMENT, and a kind of advantages of simplicity and high efficiency method for making optical-fiber bundling device is provided.
Description of drawings
Below in conjunction with drawings and Examples the utility model is made detailed explanation, wherein:
Fig. 1 is the structural representation of the utility model pumped fiber bundling device;
Fig. 2 is embodiment one a pumping input optical fibre end A-A cross sectional representation;
Fig. 3 is embodiment two pumping input optical fibre end A-A cross sectional representation.
Embodiment
Fig. 1 shows structural representation of the present utility model, after the fusion drawing-down at high temperature of quartz glass 20 outputs, with the inner cladding 30 of double clad output optical fibre 26 by end face 24 direct weldings, 28,32 fibre core, the coats that are respectively optical fiber 26 among the figure.The input of quartz glass 20 is processed a polygon cylindrical hole 22 as requested, the covering 14 of many pumping input optical fibres 10 closely is arranged in corresponding polygon as requested, and along polygon cylindrical hole 22 embeddings, its front end face cuts or grinds smooth smooth in advance, mode by flame sintering or refractive index match glue bond combines the covering 14 of many pumping input optical fibres 10, by refractive index match glue 18 it is combined with the polygon cylindrical hole 22 of quartz glass 20 again.12,16 fibre core, the coats that are respectively optical fiber 10 among the figure.
As Fig. 2 is the utility model embodiment one pumping input optical fibre end A-A cross sectional representation, quartz glass 20 diameter 2mm, long 20mm, 400um is arrived in output fusion drawing-down under Gao Huowen, pass through end face 24 direct weldings with the double clad output optical fibre, double clad output optical fibre 26 fibre cores 28 diameter 20um, inner cladding 30 diameter 400um, coat 32 diameter 550um, quartz glass 20 inputs process a hexagon cylindrical hole (polygon cylindrical hole 22), hole depth 8mm, hexagon cylindrical hole face-identity distance is from being 700um, the fibre core 12 diameter 200um of pumping input optical fibre 10, covering 14 diameter 220um, coat 16 diameter 320um, after seven pumping input optical fibres 10 are peelled off coat 16, cutting or grind its end face to smooth smooth closely is arranged in the regular hexagon structure again, combines with the mode of refractive index match glue or flame sintering, embed the hexagon cylindrical hole of quartz glass 20, combine with quartz glass by refractive index match glue 18, like this, promptly make successfully 7 * 1 optical-fiber bundling devices.At work, the pump light in seven pumping input optical fibres 10 closes by quartz glass 20 to be restrainted together, finally transfers to the inner cladding of double clad output optical fibre 26, and test result shows: coupling efficiency is on average more than 93%.(simultaneously with reference to Fig. 1)
Fig. 3 is the utility model embodiment two pumping input optical fibre end A-A cross sectional representation, quartz glass 20 diameter 2mm, long 20mm, 400um is arrived in output fusion drawing-down under Gao Huowen, pass through end face 24 direct weldings with double clad output optical fibre 26, the fibre core 28 diameter 20um of double clad output optical fibre 26, inner cladding 30 diameter 400um, coat 32 diameter 550um, quartz glass 20 inputs process square cylindrical hole (polygon cylindrical hole 22), hole depth 8mm, square cylindrical hole face-identity distance is from being 1000um, the fibre core 12 diameter 200um of pumping input optical fibre 10, covering 14 diameter 220um, coat 16 diameter 320um, after ten six roots of sensation pumping input optical fibres 10 are peelled off coat 16, cutting or grind its end face to smooth smooth closely is arranged in square structure again, combines with the mode of refractive index match glue or flame sintering, embed the square cylindrical hole of quartz glass 20, combine with quartz glass by refractive index match glue 18, like this, promptly make successfully 16 * 1 optical-fiber bundling devices.At work, the pump light in 16 pumping input optical fibres 10 closes by quartz glass 20 to be restrainted together, finally transfers to the inner cladding 30 of double clad output optical fibre 26, and test result shows: coupling efficiency is on average more than 90%.(simultaneously with reference to Fig. 1)
The utility model utilizes quartz glass as linking, the quartz glass input can be processed all size cylindrical hole according to pumping input optical fibre specification and number, output adopts the molten pull technology of high temperature that predetermined diameter is arrived in its drawing-down, pumping input optical fibre and double clad output optical fibre all only need a simple process to handle get final product, have technology simply, advantage such as good stability, rate of finished products height, performance be good.
Abovely the utility model is specifically described, but those skilled in the art can make numerous variations or variation to these execution modes these changes and changing within the scope that should fall into the utility model protection in conjunction with better embodiment.
Claims (5)
1. a pumped fiber bundling device comprises many pumping input optical fibres (10), quartz glass (20) and double clad output optical fibre (26), it is characterized in that: inner cladding (30) welding of described quartz glass (20) output and double clad output optical fibre (26); Described quartz glass (20) input is provided with a polygon cylindrical hole (22); Described many pumping input optical fibres (10) end is concordant, closely be arranged in the cross section and be polygonal structure, and be embedded in the aforementioned polygon cylindrical hole (22), the place, slit between pumping input optical fibre (10) and polygon cylindrical hole (22) is filled with refractive index match glue (18).
2. pumped fiber bundling device according to claim 1 is characterized in that: described many pumping input optical fibres (10) end is by the structure of refractive index match glue bond or the structure of flame sintering each other.
3. pumped fiber bundling device according to claim 1 and 2, it is characterized in that: described quartz glass (20) is column, its output diameter is less than input, and quartz glass (20) output and double clad output optical fibre (26) size are adaptive, and diameter shrinks gradually between quartz glass (20) output and the input.
4. pumped fiber bundling device according to claim 3, it is characterized in that: when described pumping input optical fibre (10) quantity is seven, the polygon cylindrical hole of quartz glass (20) input (22) is the hexagon cylindrical hole, and seven pumping input optical fibres (10) end arranged cells becomes adaptive with it cross section to be the structure of hexagon cylindricality.
5. pumped fiber bundling device according to claim 3, it is characterized in that: when described pumping input optical fibre (10) quantity is square number, the polygon cylindrical hole of quartz glass (20) input (22) is square cylindrical hole, the structure of the square cylindricality that many pumping input optical fibres (10) end arranged cells one-tenth is adaptive with it.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201464299U CN201656240U (en) | 2010-03-26 | 2010-03-26 | Fiber pump combiner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201464299U CN201656240U (en) | 2010-03-26 | 2010-03-26 | Fiber pump combiner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201656240U true CN201656240U (en) | 2010-11-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201464299U Expired - Fee Related CN201656240U (en) | 2010-03-26 | 2010-03-26 | Fiber pump combiner |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102116902A (en) * | 2011-03-15 | 2011-07-06 | 武汉锐科光纤激光器技术有限责任公司 | Optic fiber power beam combiner and preparation method thereof |
| CN102231476A (en) * | 2011-05-20 | 2011-11-02 | 北京化工大学 | Random fiber laser of semiconductor laser cascaded pump |
| CN105785523A (en) * | 2016-01-14 | 2016-07-20 | 武汉锐科光纤激光技术股份有限公司 | Pumping signal coupler and processing method thereof |
| CN105891951A (en) * | 2014-09-30 | 2016-08-24 | 中国兵器装备研究院 | Modularized manufacturing method of multi-core beam combiner |
| CN107515472A (en) * | 2017-09-30 | 2017-12-26 | 四川思创优光科技有限公司 | Novel multimode pumping optical fiber combiner and manufacturing method thereof |
| CN110707517A (en) * | 2019-10-18 | 2020-01-17 | 上海飞博激光科技有限公司 | Side pump signal combiner for realizing annular light beam and preparation method thereof |
| WO2020259643A1 (en) * | 2019-06-27 | 2020-12-30 | 苏州创鑫激光科技有限公司 | Triple-clad fiber, pump combiner, fiber grating, and fiber laser |
-
2010
- 2010-03-26 CN CN2010201464299U patent/CN201656240U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102116902A (en) * | 2011-03-15 | 2011-07-06 | 武汉锐科光纤激光器技术有限责任公司 | Optic fiber power beam combiner and preparation method thereof |
| CN102231476A (en) * | 2011-05-20 | 2011-11-02 | 北京化工大学 | Random fiber laser of semiconductor laser cascaded pump |
| CN102231476B (en) * | 2011-05-20 | 2012-08-29 | 北京化工大学 | Random fiber laser of semiconductor laser cascaded pump |
| CN105891951A (en) * | 2014-09-30 | 2016-08-24 | 中国兵器装备研究院 | Modularized manufacturing method of multi-core beam combiner |
| CN105785523A (en) * | 2016-01-14 | 2016-07-20 | 武汉锐科光纤激光技术股份有限公司 | Pumping signal coupler and processing method thereof |
| CN105785523B (en) * | 2016-01-14 | 2018-08-31 | 武汉锐科光纤激光技术股份有限公司 | A kind of pump signal coupler and its process |
| CN107515472A (en) * | 2017-09-30 | 2017-12-26 | 四川思创优光科技有限公司 | Novel multimode pumping optical fiber combiner and manufacturing method thereof |
| WO2020259643A1 (en) * | 2019-06-27 | 2020-12-30 | 苏州创鑫激光科技有限公司 | Triple-clad fiber, pump combiner, fiber grating, and fiber laser |
| CN110707517A (en) * | 2019-10-18 | 2020-01-17 | 上海飞博激光科技有限公司 | Side pump signal combiner for realizing annular light beam 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 | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101124 Termination date: 20120326 |