CN200941122Y - Multi-mode optical fiber power coupler - Google Patents
Multi-mode optical fiber power coupler Download PDFInfo
- Publication number
- CN200941122Y CN200941122Y CN 200620119428 CN200620119428U CN200941122Y CN 200941122 Y CN200941122 Y CN 200941122Y CN 200620119428 CN200620119428 CN 200620119428 CN 200620119428 U CN200620119428 U CN 200620119428U CN 200941122 Y CN200941122 Y CN 200941122Y
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- Prior art keywords
- optical fiber
- fiber
- multimode
- sleeve
- output terminal
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- Expired - Fee Related
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- 239000013307 optical fiber Substances 0.000 title claims abstract description 62
- 239000000835 fiber Substances 0.000 claims abstract description 24
- 238000010168 coupling process Methods 0.000 abstract description 8
- 230000008878 coupling Effects 0.000 abstract description 7
- 238000005859 coupling reaction Methods 0.000 abstract description 7
- 238000007493 shaping process Methods 0.000 abstract description 2
- 239000000463 material Substances 0.000 description 9
- 239000003292 glue Substances 0.000 description 5
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 4
- 239000010453 quartz Substances 0.000 description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 3
- 239000010949 copper Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000003287 optical effect Effects 0.000 description 3
- 238000005498 polishing Methods 0.000 description 3
- 239000006117 anti-reflective coating Substances 0.000 description 2
- 238000005253 cladding Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000008676 import Effects 0.000 description 2
- 239000010410 layer Substances 0.000 description 2
- 239000002356 single layer Substances 0.000 description 2
- 230000002950 deficient Effects 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
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Abstract
The utility model relates to a multimode multi-fiber power coupler in multi-beam laser shaping and coupling field. Within a sleeve (4) of the coupler a casing (B7) and a casing (A3) are arranged from the left to the right. Inside the casing (B7) an input end optical fiber bundle core (8) is arranged within which an input multimode fiber optic bundle (9) is arranged. Within the casing (A3) a sphere lens (1), a self-focusing lens (2) and an output end optical fiber bundle core (5) in which an output end multimode fiber optic (6) is arranged are arranged from the left to the right. The sphere lens (1) is intimately contacted with the right end of the casing (B7). The utility model is characterized in high efficiency and compact structure with the coupling efficiency higher than 90%.
Description
Technical field
The utility model relates to a kind of multiple optical fibers in multiple modes power coupler, belongs to shaping of laser multiple beam and coupling technique field.
Background technology
The preparation optical-fiber bundling device is made up of multifiber at present.It is the every optical fiber that the output light of a plurality of low-power semiconductor lasers is coupled into optical-fiber bundling device respectively, then these optical fiber boundlings is exported together, so just can obtain bigger power output.But the output light that this method obtains is still the set of a plurality of light beams, and just multifiber simply gathers together, and the laser beam output facula that this method obtains is big, and power density is little.In application, must adopt other optical system to reduce spot size, increase power density, but reliability, the complicacy of increase system, the while of adopting other optical system can reduce system also can be reduced laser power efficient.
The utility model content
The purpose of this utility model is to have overcome above-mentioned defective, and a kind of multiple optical fibers in multiple modes power coupler is provided, and this coupling mechanism has the characteristics of efficient height, compact conformation.
In order to achieve the above object, the utility model has been taked following technical scheme.A kind of multiple optical fibers in multiple modes power coupler, this device mainly includes sleeve 4, sleeve A 3, input multimode fiber-optic bundle 9, sleeve pipe B7, globe lens 1, GRIN Lens 2, output terminal multimode optical fiber 6, wherein, from left to right be disposed with sleeve pipe B7, sleeve A 3 in the inside of sleeve 4, be provided with input end fiber collar core 8 in the inside of sleeve pipe B7, be provided with input multimode fiber-optic bundle 9 in the inside of input optical fibre collar core 8, the right side of input multimode fiber-optic bundle 9, input end fiber collar core 8 and sleeve pipe B7 at grade; From left to right be disposed with globe lens 1, GRIN Lens 2, output terminal optical fiber collar core 5 in the inside of sleeve A 3, inside at output terminal optical fiber collar core 5 is provided with output terminal multimode optical fiber 6, the left side of output terminal optical fiber collar core 5 and output terminal multimode optical fiber 6 and the focus of globe lens 1 at grade, globe lens 1 closely contacts with the right side of sleeve pipe B7.
In the utility model when work, enter input multimode fiber-optic bundle 9 from the laser coupled of laser instrument output, and the laser of input multimode fiber-optic bundle 9 outputs enters GRIN Lens 2 after globe lens 1 is collimated, and line focus enters 6 outputs of output terminal multimode optical fiber.
The utility model has obtained a kind of efficient, compact multiple optical fibers in multiple modes power coupler by means of the light beam focusing of globe lens 1 and GRIN Lens 2, device has obtained the output of single fiber high power density by integrated encapsulation, make structure compact more, output beam is more concentrated, has improved the reliability and stability of device performance.The multiple optical fibers in multiple modes power coupler that adopts the utility model to make is very favourable for improving the laser output beam characteristic, and a kind of short-cut method that improves power output also is provided.The utility model is made a kind of easy packaging, the output light of a plurality of laser instruments can be exported by the simple optical fiber high-level efficiency.This device also can be applied to the pumped high-power fiber laser.Coupling efficiency of the present utility model can reach more than 90%.
Description of drawings
Fig. 1 multiple optical fibers in multiple modes power coupler structural representation
Fig. 2 multiple optical fibers in multiple modes power coupler part-structure synoptic diagram
Fig. 3 multiple optical fibers in multiple modes power coupler part-structure synoptic diagram
Among the figure: 1, globe lens, 2, GRIN Lens, 3, sleeve A, 4, sleeve, 5, output terminal optical fiber collar core, 6, the output terminal multimode optical fiber, 7, sleeve pipe B, 8, input end fiber collar core, 9, the input multimode fiber-optic bundle.
Embodiment
Describe the utility model in detail below in conjunction with accompanying drawing 1～3 and specific embodiment.
Present embodiment mainly includes sleeve 4, sleeve A 3, input multimode fiber-optic bundle 9, sleeve pipe B7, globe lens 1, GRIN Lens 2, output terminal multimode optical fiber 6, wherein, from left to right be disposed with sleeve pipe B7, sleeve A 3 in the inside of sleeve 4, be provided with input end fiber collar core 8 in the inside of sleeve pipe B7, be provided with input multimode fiber-optic bundle 9 in the inside of input optical fibre collar core 8, the right side of input multimode fiber-optic bundle 9, input end fiber collar core 8 and sleeve pipe B7 at grade; From left to right be disposed with globe lens 1, GRIN Lens 2, output terminal optical fiber collar core 5 in the inside of sleeve A 3, inside at output terminal optical fiber collar core 5 is provided with output terminal multimode optical fiber 6, the left side of output terminal optical fiber collar core 5 and output terminal multimode optical fiber 6 at grade, globe lens 1 closely contacts with the right side of sleeve pipe B7.
Present embodiment prepares as follows:
1) input multimode fiber-optic bundle 9 adopts quartz material to make multimode optical fiber, and multimode optical fiber can be chosen seven fibre cores, and the quartz material core diameter of multimode optical fiber can be chosen for 200 μ m, cladding diameter 210 μ m, and the numerical aperture of multimode optical fiber can be chosen for 0.16.
2) input multimode fiber-optic bundle 9 every long optical fiber of optical fiber front end 21mm of step 1) are removed outer covering layer, cut flat; It is 630um that input end fiber collar core 8 adopts internal diameter, and external diameter is 2.5mm, and length is that the zirconia material of 20mm is made; To import multimode fiber-optic bundle 9 and insert in the input end fiber collar cores 8, usefulness 353ND heat-curable glue will import multimode fiber-optic bundle 9 and input end fiber collar core 8 is fixing, makes many fibre-optical splices.Be 10 minutes set time, solidification temperature 100 degree.
3) to adopt a segment length be the copper sleeve of 18mm to sleeve pipe B7, and internal diameter is 2.5mm, and external diameter is 8mm, fine thread on its outer cover, and pitch 0.5mm, degree of eccentricity is less than 1 ‰.Then with step 2) in many fibre-optical splices insert among the sleeve pipe B7, add heat fixation with heat-curable glue, make many ferrules, on muller, many ferrules front end face is polished.As shown in Figure 2.
4) output terminal multimode optical fiber 6 is chosen a quartz material and is made multimode optical fiber, and the quartz material core diameter of multimode optical fiber can be chosen for 400 μ m, cladding diameter 220 μ m, and the numerical aperture of multimode optical fiber can be chosen for 0.22.
5) the 6 front end 21mm of the output terminal multimode optical fiber in the step 4) are long optical fiber is removed outer covering layer, cuts flat; It is 420um that output terminal multimode optical fiber cover core 5 adopts internal diameter, and external diameter is 2.5mm, and length is that the zirconia material of 20mm is made; Output terminal multimode optical fiber 6 is inserted in the output terminal multimode optical fiber cover core 5, with the 353ND heat-curable glue that output terminal multimode optical fiber 6 and output terminal multimode optical fiber cover core 5 is fixing, make the single fiber joint, grinding and polishing end face on buffing machine.
6) globe lens 1 adopts the K9 glass material, and the diameter of globe lens 1 is 2.5mm, surface plating single layer anti reflective coating, and material is MgF
2
7) GRIN Lens 2 adopts one 1/4 pitch GRIN Lens, and the diameter of GRIN Lens 2 is 2.5mm, and numerical aperture NA is 0.22, and length is 5mm, operating distance 0.25mm.Plate single layer anti reflective coating on the front/rear end of GRIN Lens 2, material is MgF
2
8) sleeve A 3 employings one segment length is the copper sleeve of 18mm, internal diameter is 2.5mm, external diameter is 8mm, fine thread on its outer cover, pitch 0.5mm, degree of eccentricity is less than 1 ‰, inside pipe casing is filled and is solidified glue, with 5) in the end of polishing of single fiber joint insert from an end of sleeve A 3, the globe lens in GRIN Lens in the step 7) 2 and the step 6) 1 is inserted from the other end of sleeve A 3 successively, the front end of GRIN Lens 2 closely contacts with the polished surface of single fiber joint.The focus of the polished surface of single fiber joint and globe lens 1 at grade.Globe lens 1 slightly is absorbed in sleeve A 3, and 3 heating are fixed on globe lens 1, GRIN Lens 2 and single fiber joint in the sleeve A 3 together to sleeve A.With globe lens end face grinding and polishing on buffing machine of sleeve A 3,, make single fiber coupling sleeve pipe up to just exposing globe lens.Planform as shown in Figure 3.
9) sleeve 4 is chosen the copper product sleeve that length is 30mm, and internal diameter is 8mm, and external diameter is 10mm, the internal sleeve screw thread, and pitch 0.5mm, degree of eccentricity is less than 1 ‰.Heat-curable glue is inserted with pressure in inside, avoids existing air.With 3) in many ferrules and 8) in single fiber coupling sleeve pipe be screwed into sleeve 4 respectively, and the polished surface of two sleeve pipes contacts, light with certain power is input in the input multimode fiber-optic bundle 9 simultaneously, detect the output power size from the output optical fibre of output terminal multimode optical fiber 6, adjust the distance between sleeve 4 interior many ferrules and the single fiber coupling sleeve pipe, when obtaining maximum logical optical power efficiency, add heat fixation.
Present embodiment has obtained a kind of efficient, compact multiple optical fibers in multiple modes power coupler by means of the light beam focusing of globe lens 1 and GRIN Lens 2 and the fine location adjustment of screw thread,
Selected parameter can be selected according to actual request for utilization in the foregoing description.
Claims (1)
1, a kind of multiple optical fibers in multiple modes power coupler, it is characterized in that: mainly include sleeve (4), sleeve pipe (A3), input multimode fiber-optic bundle (9), sleeve pipe (B7), globe lens (1), GRIN Lens (2), output terminal multimode optical fiber (6), wherein, from left to right be disposed with sleeve pipe (B7) in the inside of sleeve (4), sleeve pipe (A3), be provided with input end fiber collar core (8) in the inside of sleeve pipe (B7), be provided with input multimode fiber-optic bundle (9) in the inside of input optical fibre collar core (8), input multimode fiber-optic bundle (9), the right side of input end fiber collar core (8) and sleeve pipe (B7) at grade; From left to right be disposed with globe lens (1), GRIN Lens (2), output terminal optical fiber collar core (5) in the inside of sleeve pipe (A3), be provided with output terminal multimode optical fiber (6) in the inside of output terminal optical fiber collar core (5), the focus of the left side of output terminal optical fiber collar core (5) and output terminal multimode optical fiber (6) and globe lens (1) at grade, globe lens (1) closely contacts with the right side of sleeve pipe (B7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620119428 CN200941122Y (en) | 2006-09-08 | 2006-09-08 | Multi-mode optical fiber power coupler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620119428 CN200941122Y (en) | 2006-09-08 | 2006-09-08 | Multi-mode optical fiber power coupler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200941122Y true CN200941122Y (en) | 2007-08-29 |
Family
ID=38747299
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620119428 Expired - Fee Related CN200941122Y (en) | 2006-09-08 | 2006-09-08 | Multi-mode optical fiber power coupler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200941122Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103209022A (en) * | 2013-02-22 | 2013-07-17 | 江苏海虹电子有限公司 | Space optic coupling detection device based on optical fiber arrays |
-
2006
- 2006-09-08 CN CN 200620119428 patent/CN200941122Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103209022A (en) * | 2013-02-22 | 2013-07-17 | 江苏海虹电子有限公司 | Space optic coupling detection device based on optical fiber arrays |
| CN103209022B (en) * | 2013-02-22 | 2016-05-25 | 江苏海虹电子有限公司 | Space optical coupling sniffer based on fiber array |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |