CN205665430U - Optical fiber combiner - Google Patents
Optical fiber combiner Download PDFInfo
- Publication number
- CN205665430U CN205665430U CN201620541277.XU CN201620541277U CN205665430U CN 205665430 U CN205665430 U CN 205665430U CN 201620541277 U CN201620541277 U CN 201620541277U CN 205665430 U CN205665430 U CN 205665430U
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- optical
- fiber
- beam combination
- optical fiber
- pumping
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Abstract
The utility model relates to an optical fiber combiner, upper cover pass through the screw fixation on drain pan body upper portion, the fiber waveguide cone is installed on drain pan internal V type groove, the fiber waveguide cone comprises quartz capillary and optic fibre beam combination, the optic fibre beam combination includes beam combination no. 1, beam combination no. 2 and beam combination no. 3, beam combination no. 1 comprises two pumping optic fibre, a double -contracting layer passive signal input optic fibre, the point has glue fixed on the optic fibre coat of pumping optic fibre and passive signal input optic fibre, optic fibre is inputed to a beam combination interior pumping optic fibre, passive signal, and two interior three interior pumping optic fibre front portions of pumping optic fibre and beam combination of beam combination are got rid of the optic fibre coat and are inserted the bare fibre inside the quartz capillary. Restrainting the ware device and coating, put and glue fixed, encapsulation closing, closing of making is restrainted the ware and can be applied to output peak power in the middle of 50kW's ultrashort pulsed optical fibre laser ware system. The optical fiber combiner stable performance, light transmission efficiency is high, is applicable to among high peak power's the fiber laser and amplifier.
Description
Technical field
This utility model relates to signal transmitting apparatus technical field, particularly relates to a kind of optical-fiber bundling device.
Background technology
Optical-fiber bundling device is a kind of nothing that between multifiber or will realize luminous power directional transmissions between light source and optical fiber
Source device.Play important role in high-power full fibrillation laser instrument, compare with traditional coupled modes, it has coupling
Conjunction efficiency is high, is suitable in advantages such as high-power lower work, owing to being optical fibre device, it is easy to and the seamless company of other optical fibre device
Connect, constitute all optical fibre structure.
Optical-fiber bundling device is segmented into two classes, and one is the optical-fiber bundling device of N × 1 type.N × 1 optical-fiber bundling device is by many for N root
Mould pumping input optical fibre makes bundle shape fibre bundle, and carries out drawing cone, cutting and in the passive letter of a root multimode fiber or double clad
Number output optical fibre welding.Another kind is (N+1) × 1 type optical-fiber bundling device.Passive by N root multimode pumping optical fiber and a double clad
Signal input optical fibre composition bundle shape fibre bundle, and carry out drawing cone, cutting and a double clad passive signal output optical fibre welding.With
Unlike the optical-fiber bundling device of N × 1, (N+1) × 1 type optical-fiber bundling device N root multimode fiber input signal to be evenly distributed in
Around optical fiber.
Optical fiber laser has that good beam quality, compact conformation, volume be little, light weight, easy heat radiation, good operating stability etc.
Many merits.Particularly ultrashort pulse laser, the ultra-short pulse laser realized based on locked mode mode, time domain have extremely short
Pulse duration, simultaneously under relatively low mean power, just can produce high peak power.This narrow spaces, peak
The characteristic of value power so that ultrashort pulse has the effect that can not be substituted in a lot of fields.But it is high-peak power, high-octane
The development restriction of optical passive component ultrashort pulse laser.
Utility model content
For weak point present in the problems referred to above, this utility model provides a kind of optical-fiber bundling device.
For achieving the above object, this utility model provides a kind of optical-fiber bundling device, including:
Pressing mold, described pressing mold includes that bottom shell body, upper cover are screwed in described bottom shell body top；
Fiber waveguide cone is arranged on the V-groove in described bottom shell body；
Described fiber waveguide cone is made up of quartz capillary and optical fiber beam combination, and described light wave starting taper front end welding has passive letter
Number output optical fibre；
Described optical fiber group includes beam combination one, beam combination two and beam combination three；
Described beam combination one is made up of two pumping optical fibers and a passive signal input optical fibre；
On the optical fiber coating of described pumping optical fiber and described passive signal input optical fibre, point has glue to fix；
Described beam combination two is made up of two pumping optical fibers, and on the optical fiber coating of described pumping optical fiber, point has glue solid
Fixed；
Described beam combination three is made up of two pumping optical fibers, and on the optical fiber coating of described pumping optical fiber, point has glue solid
Fixed；
Described pump in described pumping optical fiber in described beam combination one, described passive signal input optical fibre, described beam combination two
Described pumping optical fiber front portion in Pu optical fiber, described beam combination three is removed described optical fiber coating and bare fibre is inserted in described quartz
Inside capillary tube.
Improve further as this utility model, remove the plain fiber portion length of described optical fiber coating more than described stone
The length of English capillary tube.
Improve further as this utility model, described beam combination one a diameter of 125 × 2+130=380 micron.
Preferred as this utility model, described passive signal output optical fibre be 10 130 or 25 250 or 20 400 double
Cladded-fiber.
Preferred as this utility model, described passive signal input optical fibre be 10 130 or 25 250 or 20 400 double
Cladded-fiber.
Preferred as this utility model, described pumping optical fiber be 105 125 optical fiber.
Preferred as this utility model, a length of 10-20cm of described quartz capillary.
Preferred as this utility model, a length of 15cm of described quartz capillary.
Preferred as this utility model, described quartz capillary internal diameter is 400 microns, external diameter 500 microns.
The beneficial effects of the utility model are: by by many root multimode fibers or many root multimode fibers and a passive signal
Input optical fibre makes the bundle shape fibre bundle being made up of capillary tube, carries out fused biconical taper drawing on cone machine, and defeated with passive signal
Going out the position that fibre diameter matches, to drawing cone cone to cut, the passive signal output optical fibre with double clad is carried out afterwards
Welding.Finally being coated combiner arrangement, put glue and fix, encapsulation, the bundling device made can apply to export its peak work
Rate is in the middle of the ultrashort pulse fiber laser system of 50kW.Optical-fiber bundling device stable performance, light transmissioning efficiency is high, it is adaptable to high
In the fiber laser and amplifier of peak power.
Accompanying drawing explanation
Fig. 1 is the front view of a kind of optical-fiber bundling device of this utility model；
Fig. 2 is the internal structure schematic diagram of a kind of optical-fiber bundling device of this utility model；
Fig. 3 is the structural representation of the fiber waveguide cone of a kind of optical-fiber bundling device of this utility model；
Fig. 4 is that the fiber waveguide cone of a kind of optical-fiber bundling device of this utility model is shown with passive signal output optical fibre welding structure
It is intended to；
Fig. 5 is the structural representation that the beam combination one of a kind of optical-fiber bundling device of this utility model, beam combination two and beam combination three assemble；
Fig. 6 is the structural representation of this utility model a kind of optical-fiber bundling device beam combination one；
Fig. 7 is the fiber waveguide conic section figure of a kind of optical-fiber bundling device of this utility model；
Fig. 8 is the quartz capillary front view of a kind of optical-fiber bundling device of this utility model.
In figure: 1, upper cover；2, bottom shell body；3, fiber waveguide cone；4, beam combination one；5, beam combination two；6, beam combination three；7, pump light
Fine；8, passive signal input optical fibre；9, passive signal output optical fibre；10, quartz capillary；11, V-groove；12, glue A；13, lead
Hot silica gel；14, fusing point；15, fiber waveguide transition region；16, light wave starting taper lumbar region.
Detailed description of the invention
As Fig. 1-8 shows, a kind of optical-fiber bundling device of this utility model embodiment, including: pressing mold, pressing mold includes bottom shell body 2,
Upper cover 1 is screwed in bottom shell body 2 top；Fiber waveguide cone 3 is arranged on the V-groove 11 in bottom shell body 2；Light wave starting taper
Body 3 is made up of quartz capillary 10 and optical fiber beam combination.Optical fiber beam combination includes beam combination 1, beam combination 25 and beam combination 36；Beam combination one by
Two pumping optical fibers 7 and a passive signal input optical fibre 8 form.It is coated with at pumping optical fiber 7 and passive signal input optical fibre 8 optical fiber
On coating, point has glue to fix.Beam combination two is made up of two pumping optical fibers, and on the optical fiber coating of pumping optical fiber, point has glue
Fixing.Beam combination three is made up of two pumping optical fibers, and on the optical fiber coating of pumping optical fiber, point has glue to fix.In beam combination one
Pumping optical fiber within pumping optical fiber 7, passive signal input optical fibre 8, beam combination two, the pumping optical fiber front portion within beam combination three are removed
It is internal that the bare fibre of optical fiber coating is inserted in quartz capillary 10.Remove the plain fiber portion length of optical fiber coating more than quartz
The length of capillary tube 10.Beam combination one width is 125 × 2+130=380 micron.Passive signal output optical fibre 9 and fiber waveguide cone 3
Carry out welding.Passive signal output optical fibre 9 be 10 130 or 25 250 or 20 400 doubly clad optical fiber.Passive signal input light
Fine 8 be 10 130 or 25 250 or 20 400 doubly clad optical fiber.Pumping optical fiber be 105 125 optical fiber.Quartz capillary 10
A length of 10-20cm, a length of 15cm of quartz capillary 10, quartz capillary 10 internal diameter is 400 microns.
First prepare quartz capillary long for an about 15cm (due to the restriction drawing cone machine used, therefore to prepare
A length of about the 15cm of little quartz capillary), determine capillary inner diameter, external diameter according to fiber type, utilize scalable optical fiber
Optical fiber is divested coat by stripper, divests the length length more than quartz capillary sleeve pipe, is so convenient to observe optical fiber at stone
Position in English capillary tube, determines the arrangement situation of optical fiber.As a example by (6+1) x1 optical-fiber bundling device, need six roots of sensation multi-mode pump
Pu optical fiber and a 10/130 passive signal input optical fibre, a 25/250 double clad passive signal output optical fibre.By two
105/125 pumping optical fiber and a 10/130 double clad passive signal input optical fibre composition beam combination side by side, wherein 10/130 pair
Covering passive signal input optical fibre is between two pumping optical fibers, with glue B17 by this optical fiber beam combination at optical fiber coating
One fixes.
Remaining four pumping optical fiber composition two bundle also fixes according to the method described above, forms beam combination two, three.Ensure three respectively
Group optical fiber beam combination goes at coat concordant.
Use quartz capillary long for ready about 15cm, beam combination one is pierced in quartz capillary, beam combination one
Width is 125 × 2+130=380 micron, determines that the internal diameter of quartz capillary is 400 microns, has the space of 20 microns, more close
Reason.Again beam combination two, three is pierced in quartz capillary respectively.
Bundle shape fibre bundle is carried out utilizes three electrode ring fires to draw cone machine to carry out closing bundle and draws cone, the duration and degree of heating of three electrode ring fire structures
Make being uniformly heated of fibre bundle compared with other duration and degree of heating, be so conducive to the uniformity of cone structure.Obtain light wave
Starting taper body, wherein fiber waveguide cone includes that optical fiber beam combination, fiber waveguide cone are provided with fiber waveguide transition region 15 and light wave starting taper waist
District 16, and need to ensure that fiber waveguide transition region 15 long enough draws cone condition, the diameter of light wave starting taper lumbar region 16 with satisfied thermal insulation
Need to determine according to matched double clad passive signal output optical fibre.
After drawing cone to terminate, utilize and draw cone machine scanning software selected the most straight with what double clad passive signal output optical fibre mated
Cut at footpath.The fiber waveguide cone obtained is utilized heat sealing machine and the output of 25/250 double clad passive signal of graphite duration and degree of heating
Optical fiber carries out welding, it is thus achieved that bundling device.
The ultra-violet curing glue that its fusing point 14 utilizes low-refraction is coated, to obtained under the irradiation of uviol lamp
Bundling device after coating is packaged.
Bundling device coating completed loads in bundling device fixture V-groove, first fiber waveguide cone is fixed with glue A12,
Fill in whole fixture V-groove utilizing heat conductive silica gel 13.Utilize the heat conductivity of aluminum fixture, in the middle of bundling device work process
The heat accumulated is taken away.Finally carrying out the encapsulation of whole bundling device, optical-fiber bundling device stable performance, light transmissioning efficiency is high, suitable
In the fiber laser and amplifier of high-peak power.
Bundling device type can be (N+1) x1 or Nx1, i.e. (6+1) x1, (9+1) x1, (18+1) x1,2x1,3x1,7x1,
19x1 fiber type can be pumping optical fiber or Transmission Fibers.Pumping optical fiber is the multimode fibre of 105/125/250.Transmission Fibers
The double clad passive fiber of position 10/130/250,25/250/400,20/400/600.For (9+1) x1, (18+1) x1,19x1
Type bundling device utilizes associated clamps to complete to tie the preparation of shape fibre bundle.
Bundling device type is (N+1) x1, and as N=6, input signal optical fiber is 10/130/250；Output signal optical fiber is
10/130/250,25/250/400；As N=9.Input signal fibre is 10/130/250；Output signal fibre is 25/250/400.
As N=18.Input signal fibre is 10/130/250；Output signal fibre is 25/250/400.Bundling device type is Nx1, works as N=
When 2 or 3, output optical fibre is 10/130/250.As N=7, output optical fibre is 10/130/250,25/250/400；Work as N=19
Time, output optical fibre is 20/400/600.
The foregoing is only preferred embodiment of the present utility model, be not limited to this utility model, for this
For the technical staff in field, this utility model can have various modifications and variations.All in spirit of the present utility model and principle
Within, any modification, equivalent substitution and improvement etc. made, within should be included in protection domain of the present utility model.
Claims (9)
1. an optical-fiber bundling device, it is characterised in that including:
Pressing mold, described pressing mold includes that bottom shell body (2), upper cover (1) are screwed in described bottom shell body (2) top；
Fiber waveguide cone (3) is arranged on the V-groove (11) in described bottom shell body (2)；
Described fiber waveguide cone (3) is made up of quartz capillary (10) and optical fiber group, and the front end welding of described fiber waveguide cone (3) has
Passive signal output optical fibre (9)；
Described optical fiber group includes beam combination one (4), beam combination two (5) and beam combination three (6)；
Described beam combination one is made up of two pumping optical fibers (7), a passive signal input optical fibre (8)；
On the coat of described pumping optical fiber (7) and described passive signal input optical fibre (8), point has glue to fix；
Described beam combination two is made up of two pumping optical fibers, and on the optical fiber coating of described pumping optical fiber, point has glue to fix；
Described beam combination three is made up of two pumping optical fibers, and on the optical fiber coating of described pumping optical fiber, point has glue to fix；
Institute within described pumping optical fiber (7) in described beam combination one, described passive signal input optical fibre (8), described beam combination two
State the removal described optical fiber coating of the described pumping optical fiber front portion within pumping optical fiber, described beam combination three and bare fibre is inserted in described
Quartz capillary (10) is internal.
Optical-fiber bundling device the most according to claim 1, it is characterised in that: remove the plain fiber portion of described optical fiber coating
Length is more than the length of described quartz capillary (10).
Optical-fiber bundling device the most according to claim 1, it is characterised in that: a diameter of 125 × 2+130=of described beam combination one
380 microns.
Optical-fiber bundling device the most according to claim 1, it is characterised in that: described passive signal output optical fibre (9) be 10
130 or 25 250 or 20 400 doubly clad optical fiber.
Optical-fiber bundling device the most according to claim 1, it is characterised in that: described passive signal input optical fibre (8) be 10
130 or 25 250 or 20 400 doubly clad optical fiber.
Optical-fiber bundling device the most according to claim 1, it is characterised in that: described pumping optical fiber be 105 125 optical fiber.
Optical-fiber bundling device the most according to claim 1, it is characterised in that: described quartz capillary (10) a length of 10-
20cm。
Optical-fiber bundling device the most according to claim 7, it is characterised in that: a length of 15cm of described quartz capillary.
Optical-fiber bundling device the most according to claim 8, it is characterised in that: described quartz capillary internal diameter is 400 microns, outward
500 microns of footpath.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620541277.XU CN205665430U (en) | 2016-06-06 | 2016-06-06 | Optical fiber combiner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620541277.XU CN205665430U (en) | 2016-06-06 | 2016-06-06 | Optical fiber combiner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205665430U true CN205665430U (en) | 2016-10-26 |
Family
ID=57156246
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620541277.XU Active CN205665430U (en) | 2016-06-06 | 2016-06-06 | Optical fiber combiner |
Country Status (1)
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109188610A (en) * | 2018-10-19 | 2019-01-11 | 北京工业大学 | A kind of optical-fiber bundling device with encapsulating structure |
| CN109828334A (en) * | 2019-04-15 | 2019-05-31 | 南京邮电大学 | A kind of full-automation heat sealing machine |
| CN110429464A (en) * | 2019-07-19 | 2019-11-08 | 东莞理工学院 | A kind of superpower laser bundling device |
| CN111522097A (en) * | 2020-04-29 | 2020-08-11 | 英诺激光科技股份有限公司 | Ultra-low-loss large-mode-field optical fiber side pumping beam combiner and manufacturing method thereof |
-
2016
- 2016-06-06 CN CN201620541277.XU patent/CN205665430U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109188610A (en) * | 2018-10-19 | 2019-01-11 | 北京工业大学 | A kind of optical-fiber bundling device with encapsulating structure |
| CN109828334A (en) * | 2019-04-15 | 2019-05-31 | 南京邮电大学 | A kind of full-automation heat sealing machine |
| CN110429464A (en) * | 2019-07-19 | 2019-11-08 | 东莞理工学院 | A kind of superpower laser bundling device |
| CN111522097A (en) * | 2020-04-29 | 2020-08-11 | 英诺激光科技股份有限公司 | Ultra-low-loss large-mode-field optical fiber side pumping beam combiner and manufacturing method thereof |
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| GR01 | Patent grant |