CN207198375U - A kind of device for preparing Fiber Bragg Grating FBG - Google Patents
A kind of device for preparing Fiber Bragg Grating FBG Download PDFInfo
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- CN207198375U CN207198375U CN201721153527.3U CN201721153527U CN207198375U CN 207198375 U CN207198375 U CN 207198375U CN 201721153527 U CN201721153527 U CN 201721153527U CN 207198375 U CN207198375 U CN 207198375U
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Abstract
The utility model discloses a kind of device for preparing Fiber Bragg Grating FBG,Including laser device,Laser shaping device,Laser interference device,Clamping moving device and organic solution filling device,The output port of the liquid fill port connection organic solution filling device of clamping moving device,Laser device launches laser to laser shaping device,Laser shaping device is launched to laser interference device after Shape correction is carried out to laser,Laser is divided into two beam laser by laser interference device,Two beam laser are interfered,Obtain the laser interferencefringes of periodic distribution,Organic solution is filled and is attached to the inner wall surface of hollow-core fiber by organic solution filling device,Inner wall surface is filled and is attached with the region that the hollow-core fiber of organic solution moved to where laser interferencefringes by clamping moving device,So that the air-core of hollow-core fiber is located on laser interferencefringes focal plane,Fiber Bragg Grating FBG is easily prepared so as to simpler.
Description
Technical field
The utility model belongs to Fiber Bragg Grating technology field, more particularly to a kind of device for preparing Fiber Bragg Grating FBG.
Background technology
Fiber Bragg Grating FBG is a kind of reflection-type optical fiber grating device, and it is in fiber optic communication and sensory field of optic fibre application
Extensively, in the prior art, the method for preparing Fiber Bragg Grating FBG is mainly ibl and ultrafast laser processing method.From
Beamlet etching method and ultrafast laser processing method can be directed to the preparation that any optical fiber carries out Fiber Bragg Grating FBG in theory, but
It is, because hollow-core fiber has special air-core structure, using ion beam etching and ultrafast laser processing method directly in hollow
, it is necessary to by laser vernier focusing in the inwall of hollow-core fiber, increase preparation complexity when writing Fiber Bragg Grating FBG processed in optical fiber.
Therefore, there is prepare optical fiber Bragg light using ibl and ultrafast laser processing method in the prior art
During grid, it is necessary to by laser vernier focusing in the inwall of hollow-core fiber, the technical problem of increase preparation complexity.
Utility model content
Main purpose of the present utility model is to propose a kind of device for preparing Fiber Bragg Grating FBG, it is intended to solves existing
, it is necessary to which laser is smart when preparing Fiber Bragg Grating FBG using ibl and ultrafast laser processing method present in technology
The inwall of hollow-core fiber is really focused on, increase prepares the technical problem of complexity.
To achieve the above object, the utility model provides a kind of device for preparing Fiber Bragg Grating FBG, described device bag
Include laser device, laser shaping device, laser interference device, clamping moving device and organic solution filling device；
The liquid fill port of the clamping moving device connects the output port of the organic solution filling device；
The laser device launches laser to the laser shaping device, and the laser shaping device enters to the laser
Row Shape correction, and by the Laser emission after Shape correction to the laser interference device, the laser interference device is by shaping
Laser after processing is divided into two beam laser, and laser described in two beams is interfered, and obtains the laser interferencefringes of periodic distribution, institute
The inner wall surface that organic solution is filled and be attached to hollow-core fiber by organic solution filling device is stated, the clamping moving device will
The region that the hollow-core fiber of organic solution is moved to where the laser interferencefringes is filled and be attached with to inner wall surface, and causes
The air-core of the hollow-core fiber is located on the focal plane of the laser interferencefringes.
Further, the organic solution filling device is led including liquid reservoir compartment, the first filling conduit, the second filling
Pipe, compression pump and vacuum absorber；
The compression pump is connected with one end of the liquid reservoir compartment, the other end of the liquid reservoir compartment and described first
One end connection of conduit is filled, the other end of the first filling conduit is connected with one end of the hollow-core fiber, the hollow
The other end of optical fiber is connected with one end of the described second filling conduit, and the other end of the second filling conduit is inhaled with the vacuum
Adnexa connects.
Further, organic solvent is stored in the liquid reservoir compartment.
Further, the organic solvent has the property for absorbing laser.
Further, the organic solvent is toluene solution or the acetone soln for mixing pyrene.
Further, the laser interference device is optical phase mask plate or double laser beams optical interference circuit.
Further, the double laser beams optical interference circuit includes a laser beam splitter mirror, a long stroke electricity driving displacement
Platform and a pair of rotating mirrors；
The laser beam splitter mirror and the rotating mirror are arranged on the long stroke electricity driving displacement platform；
The laser is divided into two beam laser by the laser beam splitter mirror, is penetrated per beam of laser in a rotating mirror
On.
Further, the hollow-core fiber is hollow core photonic bandgap fiber, or Kagome structure photonic crystal fibers, or empty
Core quartz ampoule or hollow antiresonance optical fiber.
The utility model proposes a kind of device for preparing Fiber Bragg Grating FBG, device include laser device, laser
Apparatus for shaping, laser interference device, clamping moving device and organic solution filling device, the liquid filled end of clamping moving device
The output port of mouth connection organic solution filling device, laser device launch laser, laser shaping dress to laser shaping device
Put and Shape correction is carried out to laser, and will be whole by the Laser emission after Shape correction to laser interference device, laser interference device
Laser after shape processing is divided into two beam laser, and two beam laser are interfered, and obtain the laser interferencefringes of periodic distribution, organic
Organic solution is filled and is attached to the inner wall surface of hollow-core fiber by solution filling device, and clamping moving device fills out inner wall surface
The region that the hollow-core fiber of organic solution is moved to where laser interferencefringes is filled and be attached with, and causes the air of hollow-core fiber
Fibre core is located on the focal plane of laser interferencefringes.Compared with prior art, using organic solution filling device, will be organic molten
Liquid is filled and is attached to after the inner wall surface of hollow-core fiber, inner wall surface is filled and is attached with the hollow-core fiber of organic solution
The region being moved to where laser interferencefringes, and cause the air-core of hollow-core fiber to be located at the focal plane of laser interferencefringes
On, can be directly to write Fiber Bragg Grating FBG processed, it is not necessary to by laser vernier focusing hollow-core fiber inwall, so as to more
Simple and convenient prepares Fiber Bragg Grating FBG.
Brief description of the drawings
Fig. 1 is a kind of structural representation for device for preparing Fiber Bragg Grating FBG that the utility model first embodiment provides
Figure；
Fig. 2 is a kind of another structure for device for preparing Fiber Bragg Grating FBG that the utility model first embodiment provides
Schematic diagram；
Fig. 3 is a kind of refinement structure for device for preparing Fiber Bragg Grating FBG that the utility model first embodiment provides
Schematic diagram.
Embodiment
, below will knot to enable purpose of utility model of the present utility model, feature, advantage more obvious and understandable
The accompanying drawing in the utility model embodiment is closed, the technical scheme in the embodiment of the utility model is clearly and completely described,
Obviously, described embodiment is only the utility model part of the embodiment, and not all embodiments.Based on the utility model
In embodiment, the every other embodiment that those skilled in the art are obtained under the premise of creative work is not made, all
Belong to the scope of the utility model protection.
In order to illustrate the technical solution of the utility model, illustrated below by specific embodiment.
In order to be better understood from the utility model, a kind of device for preparing Fiber Bragg Grating FBG shown in Fig. 1 is referred to
Structural representation, a kind of device for preparing Fiber Bragg Grating FBG shown in Fig. 2 another structural representation and Fig. 3 shown in
A kind of refinement structural representation for the device for preparing Fiber Bragg Grating FBG, device includes laser device 10, laser shaping fills
Put 20, laser interference device 30, clamping moving device 40 and organic solution filling device 50；
The output port of the liquid fill port connection organic solution filling device 50 of clamping moving device 40；
Laser device 10 launches laser to laser shaping device 20, and laser shaping device 20 is carried out at shaping to laser
Reason, and by the Laser emission after Shape correction to laser interference device 30, laser interference device 30 is by the laser after Shape correction
It is divided into two beam laser, two beam laser are interfered, and obtain the laser interferencefringes of periodic distribution, organic solution filling device 50
Organic solution is filled and is attached to the inner wall surface of hollow-core fiber 60, inner wall surface is filled and adhered to by clamping moving device 40
The region that the hollow-core fiber 60 for having organic solution is moved to where laser interferencefringes, and cause the air-core of hollow-core fiber 60
On the focal plane of laser interferencefringes.
In the utility model embodiment, as shown in Fig. 2 hollow-core fiber 60 includes covering and air-core, organic solution
The inner wall surface of hollow-core fiber 60 is attached to, two beam laser are interfered, and obtain the laser interferencefringes of periodic distribution.
In the utility model embodiment, as shown in figure 3, the offer of laser device 10 is prepared needed for Fiber Bragg Grating FBG
Laser energy, laser device 10 is made up of Nd-YAG lasers 101 and frequency multiplier 102, and laser shaping device 20 is by preset
The speculum 201 and lens subassembly 202 of number form, and by adjusting the angle of each speculum 201, can press laser beam
Exported according to predetermined angle, wherein, the speculum 201 of preset number can be set according to actual conditions, and preferably two are anti-
Mirror 201 is penetrated, by adjusting the position of each lens in lens subassembly 202, to change focus, so as to carry out shaping to laser,
Laser shaping module is by the shaping to laser so as to regulating and controlling the Energy distribution of laser facula and exit direction.
Wherein, the laser in laser device 10 is high energy pulse laser, can be nanosecoud pulse laser or
Subnanosecond pulse laser or picosecond pulse laser, according to classification of type, laser can be that excimer laser, gas swash
Light device, solid state laser, semiconductor laser, optical fiber laser etc..
Wherein, laser device 10 export optical maser wavelength can be 193nm, 213nm, 248nm, 266nm, 313nm,
One kind in 355nm, 532nm.
Further, hollow-core fiber 60 is hollow core photonic bandgap fiber, or Kagome structure photonic crystal fibers, or hollow
Quartz ampoule, or hollow antiresonance optical fiber.
Further, laser interference device 30 is optical phase mask plate or double laser beams optical interference circuit 301.
As shown in figure 3, double laser beams optical interference circuit 301 is electronic including 3011, long strokes of a laser beam splitter mirror
Displacement platform 3012 and a pair of rotating mirrors 3013；
Laser beam splitter mirror 3011 and rotating mirror 3013 are arranged on long stroke electricity driving displacement platform 3012；
Laser is divided into two beam laser by laser beam splitter mirror 3011, is penetrated per beam of laser on a rotating mirror 3013.
In the utility model embodiment, pass through the tune to optical phase mask plate or double laser beams optical interference circuit 301
It is whole so that two beam laser interfere in space, obtain the laser interferencefringes of periodic distribution.
Wherein, above-mentioned laser beam splitter mirror 3011 can be laser half-reflecting half mirror or optical phase mask plate.
Wherein, long stroke electricity driving displacement platform 3012 is one-dimensional electricity driving displacement platform.
In the utility model embodiment, the optical fiber of different cycles can be designed according to demand using laser interference device 30
Bragg grating.
Further, clamping moving device 40 is electronic by a pair of fiber clamps, a pair of three-D displacement platforms, a long stroke
Displacement platform and pinboard are formed.
In the utility model embodiment, adjust fiber clamp and three-D displacement platform so that hollow-core fiber 60 perpendicular to
The incident direction of laser, long stroke electricity driving displacement platform is adjusted, it is moved along the incident direction of laser, until hollow-core fiber
60 air-core is on the focal plane of laser interferencefringes.
Wherein it is possible to whether the pattern for the diffraction light for passing through the behind for observing hollow-core fiber 60 is so as to judging hollow-core fiber 60
On focal plane.
Further, organic solution filling device 50 includes the filling filling of conduit 502, second of liquid reservoir compartment 501, first
Conduit 503, compression pump 504 and vacuum absorber 505；
Compression pump 504 is connected with one end of liquid reservoir compartment 501, and the other end of liquid reservoir compartment 501 is led with the first filling
Pipe 502 one end connection, first filling conduit 502 the other end be connected with one end of hollow-core fiber 60, hollow-core fiber 60 it is another
One end is connected with one end of the second filling conduit 503, and the other end of the second filling conduit 503 is connected with vacuum absorber 505.
Further, organic solvent is stored in liquid reservoir compartment 501.
Further, organic solvent has the property for absorbing laser.
In the utility model embodiment, the both ends of hollow-core fiber 60 respectively with one end of the first filling conduit 502 and the
One end of two filling conduits 503 is tightly connected, and Opening pressure pump 504 is pressurizeed, and the organic solution in liquid reservoir compartment 501 exists
Flowed out in the presence of compression pump 504 by the first filling conduit 502, into the air-core of hollow-core fiber 60, open vacuum
Absorber 505, extracts the organic solution for the preset capacity being filled in air-core out by vacuum absorber 505, and extraction has
Machine solution is back to the inside of vacuum absorber 505 by the second filling conduit 503, due to the surface tension effects of organic solution,
Remaining organic solution is attached to the inner wall surface of hollow-core fiber 60.
In the utility model embodiment, organic solution is attached to the inner wall surface of hollow-core fiber 60, organic solution tool
There is the property for absorbing laser, the organic solution based on the inner wall surface of hollow-core fiber 60 adds to the absorption of laser so as to local
Heat, the inwall of hollow-core fiber 60 is impacted, form grating indentation, the generally applicable various pulse lasers of the preparation method.
Further, the idiographic flow for preparing Fiber Bragg Grating FBG is：
Open laser device 10 and laser is launched to laser shaping device 20 with the first default laser output power；
Laser shaping device 20 carries out Shape correction to laser, and the Laser emission after Shape correction to laser interference is filled
Put 30；
Laser after Shape correction is divided into two beam laser by laser interference device 30, and two beam laser are interfered, and obtain week
The laser interferencefringes of phase property distribution；
Organic solution is filled and is attached to the inner wall surface of hollow-core fiber 60 by organic solution filling device 50；
The hollow-core fiber 60 that inner wall surface is filled and be attached with organic solution by clamping moving device 40 is moved to laser and done
The region where striped is related to, and the air-core of hollow-core fiber 60 is located on the focal plane of laser interferencefringes；
Laser device 10 carries out laser interference exposure with the second default laser output power, writes optical fiber Bragg light processed
Grid, the second default laser output power are more than the first default laser output power.
In the utility model embodiment, laser device 10 is opened, is preheated, when laser output power is stable,
Turn down laser output power.
Wherein, adjusting laser shaping module 20 includes some speculums 201 and lens group 202, adjusts speculum 201, will
Laser is projected according to predetermined angle, adjusts lens group 202, and to adjust focal length, shaping is carried out to laser.
Wherein, laser interference device 30 is optical phase mask plate or double laser beams optical interference circuit 301, double laser beams
Optical interference circuit 301 includes 3011, long stroke electricity driving displacement platforms 3012 of a laser beam splitter mirror and a pair of rotating mirrors
3013, pass through the adjustment to optical phase mask plate or double laser beams optical interference circuit 301 so that two beam laser occur in space
Interference, obtains the laser interferencefringes of periodic distribution, wherein, above-mentioned laser beam splitter mirror 3011 can be laser half-reflecting half mirror
Or optical phase mask plate, long stroke electricity driving displacement platform 3012 are one-dimensional electricity driving displacement platform.
In the utility model embodiment, the optical fiber of different cycles can be designed according to demand using laser interference device 30
Bragg grating.
Wherein, the second default laser output power is more than the first default laser output power.
Further, organic solution is filled and is attached to the inner wall surface of hollow-core fiber 60 by organic solution filling device 50
The step of include：
Organic solution in liquid reservoir compartment is introduced to the sky of hollow-core fiber 60 by compression pump by the first filling conduit
In gas fibre core；
The organic solution for the preset capacity being filled in air-core is extracted out by vacuum absorber, so as to remaining organic
Solution is attached to the inner wall surface of hollow-core fiber 60.
Organic solution filling device 50 include liquid reservoir compartment 501, first fill conduit 502, second fill conduit 503,
Compression pump 504 and vacuum absorber 505, compression pump 504 are connected with one end of liquid reservoir compartment 501, liquid reservoir compartment 501 it is another
One end is connected with one end of the first filling conduit 502, and one end of the other end and hollow-core fiber 60 of the first filling conduit 502 connects
Connect, the other end of hollow-core fiber 60 with second filling conduit 503 one end be connected, second filling conduit 503 the other end with very
Suction adnexa 505 is connected, and organic solvent is stored in liquid reservoir compartment 501, and organic solvent has the property for absorbing laser, You Jirong
Agent can be toluene solution or the acetone soln for mixing pyrene.
In the utility model embodiment, the both ends of hollow-core fiber 60 are filled with the first filling conduit 502 and second respectively
One end of conduit 503 is tightly connected, and Opening pressure pump 504 is pressurizeed, and the organic solution in liquid reservoir compartment 501 is in compression pump
Flowed out in the presence of 504 by the first filling conduit 502, into the air-core of hollow-core fiber 60, open vacuum absorber
505, extract the organic solution for the preset capacity being filled in air-core, the organic solution of extraction out by vacuum absorber 505
The inside of vacuum absorber 505 is back to by the second filling conduit 503, it is remaining due to the surface tension effects of organic solution
Organic solution is attached to the inner wall surface of hollow-core fiber 60.
In the utility model embodiment, organic solution is attached to the inner wall surface of hollow-core fiber 60, organic solution tool
There is the property for absorbing laser, the organic solution based on the inner wall surface of hollow-core fiber 60 adds to the absorption of laser so as to local
Heat, the inwall of hollow-core fiber 60 is impacted, form grating indentation, the generally applicable various pulse lasers of the preparation method.
Wherein, clamping moving device 40 is by a pair of fiber clamps, a pair of three-D displacement platforms, a long stroke electricity driving displacement
Platform and pinboard are formed.
In the utility model embodiment, adjust fiber clamp and three-D displacement platform so that hollow-core fiber 60 perpendicular to
The incident direction of laser, long stroke electricity driving displacement platform is adjusted, it is moved along the incident direction of laser, until hollow-core fiber
60 air-core is on the focal plane of laser interferencefringes.
Wherein it is possible to whether the pattern for the diffraction light for passing through the behind for observing hollow-core fiber 60 is so as to judging hollow-core fiber 60
On focal plane.
In the utility model embodiment, unlatching laser device 10 is simultaneously whole to laser with the first default laser output power
Shape dress puts 20 transmitting laser, and laser shaping device 20 carries out Shape correction to laser, and by the Laser emission after Shape correction extremely
Laser after Shape correction is divided into two beam laser by laser interference device 30, laser interference device 30, and two beam laser are interfered,
The laser interferencefringes of periodic distribution is obtained, hollow-core fiber is filled and be attached to organic solution by organic solution filling device 50
60 inner wall surface, clamping moving device 40 by inner wall surface fill and be attached with organic solution hollow-core fiber 60 be moved to it is sharp
Region where interference of light striped, and the air-core of hollow-core fiber 60 is located on the focal plane of laser interferencefringes, swash
Light device device 10 carries out laser interference exposure with the second default laser output power, writes Fiber Bragg Grating FBG processed, and second is default
Laser output power is more than the first default laser output power.Compared with prior art, to be filled using there is provided organic solution filling
Put 50 device for preparing Fiber Bragg Grating FBG, by organic solution fill and be attached to hollow-core fiber 60 inner wall surface it
Afterwards, the region that the hollow-core fiber 60 of organic solution is moved to where laser interferencefringes is filled and be attached with to inner wall surface, and
, can be directly to write optical fiber Bragg light processed so that the air-core of hollow-core fiber 60 is located on the focal plane of laser interferencefringes
Grid, it is not necessary to by laser vernier focusing in the inwall of hollow-core fiber 60, easily prepare optical fiber Bragg light so as to simpler
Grid.
In several embodiments provided herein, it should be understood that disclosed apparatus and method, it can be passed through
Its mode is realized.
In the above-described embodiments, the description to each embodiment all emphasizes particularly on different fields, and does not have the portion being described in detail in some embodiment
Point, it may refer to the associated description of other embodiments.
It is to a kind of description for the device for preparing Fiber Bragg Grating FBG provided by the utility model, for ability above
The technical staff in domain, according to the thought of the utility model embodiment, change is had in specific embodiments and applications
Part, to sum up, this specification content should not be construed as to limitation of the present utility model.
Claims (8)
1. a kind of device for preparing Fiber Bragg Grating FBG, it is characterised in that described device includes laser device, laser shaping
Device, laser interference device, clamping moving device and organic solution filling device；
The liquid fill port of the clamping moving device connects the output port of the organic solution filling device；
The laser device launches laser to the laser shaping device, and the laser shaping device carries out whole to the laser
Shape processing, and by the Laser emission after Shape correction to the laser interference device, the laser interference device is by Shape correction
Laser afterwards is divided into two beam laser, and laser described in two beams is interfered, and obtains the laser interferencefringes of periodic distribution, described to have
The inner wall surface of hollow-core fiber is filled and be attached to organic solution by machine solution filling device, and the clamping moving device is by inwall
The region that the hollow-core fiber of organic solution is moved to where the laser interferencefringes is filled and is attached with surface, and is caused described
The air-core of hollow-core fiber is located on the focal plane of the laser interferencefringes.
2. device according to claim 1, it is characterised in that the organic solution filling device include liquid reservoir compartment,
First filling conduit, the second filling conduit, compression pump and vacuum absorber；
The compression pump is connected with one end of the liquid reservoir compartment, the other end of the liquid reservoir compartment and the described first filling
One end connection of conduit, the other end of the first filling conduit are connected with one end of the hollow-core fiber, the hollow-core fiber
The other end with described second filling conduit one end be connected, it is described second filling conduit the other end and the vacuum absorber
Connection.
3. device according to claim 2, it is characterised in that store organic solvent in the liquid reservoir compartment.
4. device according to claim 1, it is characterised in that the organic solvent has the property for absorbing laser.
5. device according to claim 1, it is characterised in that the organic solvent be toluene solution or mix pyrene acetone it is molten
Liquid.
6. device according to claim 1, it is characterised in that the laser interference device is optical phase mask plate or swashed
Light two-beam interference light path.
7. device according to claim 6, it is characterised in that the double laser beams optical interference circuit includes a laser point
Shu Jing, a long stroke electricity driving displacement platform and a pair of rotating mirrors；
The laser beam splitter mirror and the rotating mirror are arranged on the long stroke electricity driving displacement platform；
The laser is divided into two beam laser by the laser beam splitter mirror, is penetrated per beam of laser on a rotating mirror.
8. device according to claim 1, it is characterised in that the hollow-core fiber is hollow core photonic bandgap fiber, or
Kagome structure photonic crystal fibers, or hollow quartz ampoule or hollow antiresonance optical fiber.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201721153527.3U CN207198375U (en) | 2017-09-08 | 2017-09-08 | A kind of device for preparing Fiber Bragg Grating FBG |
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| CN201721153527.3U CN207198375U (en) | 2017-09-08 | 2017-09-08 | A kind of device for preparing Fiber Bragg Grating FBG |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107526131A (en) * | 2017-09-08 | 2017-12-29 | 深圳大学 | A kind of device for preparing Fiber Bragg Grating FBG and preparation method thereof |
| WO2019047145A1 (en) * | 2017-09-08 | 2019-03-14 | 深圳大学 | Device for fabricating optical fiber bragg grating, and fabrication method thereof |
| CN111221070A (en) * | 2020-01-21 | 2020-06-02 | 武汉锐科光纤激光技术股份有限公司 | Device and method for manufacturing fiber grating |
-
2017
- 2017-09-08 CN CN201721153527.3U patent/CN207198375U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107526131A (en) * | 2017-09-08 | 2017-12-29 | 深圳大学 | A kind of device for preparing Fiber Bragg Grating FBG and preparation method thereof |
| WO2019047145A1 (en) * | 2017-09-08 | 2019-03-14 | 深圳大学 | Device for fabricating optical fiber bragg grating, and fabrication method thereof |
| CN107526131B (en) * | 2017-09-08 | 2023-11-03 | 深圳大学 | Device for preparing fiber Bragg grating and preparation method thereof |
| CN111221070A (en) * | 2020-01-21 | 2020-06-02 | 武汉锐科光纤激光技术股份有限公司 | Device and method for manufacturing fiber grating |
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