CN106324852A - VBG external cavity semiconductor laser fast-axis collimating lens assembly device and method - Google Patents
VBG external cavity semiconductor laser fast-axis collimating lens assembly device and method Download PDFInfo
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- CN106324852A CN106324852A CN201610955100.9A CN201610955100A CN106324852A CN 106324852 A CN106324852 A CN 106324852A CN 201610955100 A CN201610955100 A CN 201610955100A CN 106324852 A CN106324852 A CN 106324852A
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/30—Collimators
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Abstract
The invention discloses a VBG external cavity semiconductor laser fast-axis collimating lens assembly device and method, which belongs to the field of fast axis collimating lens assembly technology of VBG external-cavity semiconductor laser, wherein the device consists of metal carrier is used for FAC collimating lens placement, spacing board and metal block pressed at the upper of FAC collimating lens; there is a right-angle face at the upper of metal carrier, which is used to place orthogonal FAC collimating lens and lends tray requiring assembly, the length of the right-angle face is adaptive to fast axis collimating lens; the cross section of spacing board is rectangle, the thickness is arranged based on requirements, and the spacing board can wringing fit the right-angle vertical face. The assembly method is conducted by adopting the above assembled device, firstly, fixing the spacing board, and then placing the lens tray, next, bonding FAC collimating lens and placing the metal block, and implementing UV-irradiation for solidification. The fast axis collimating lens assembled device of VBG external-cavity semiconductor laser ensures orthogonal assembly of FAC collimating lens and lens tray, achieving fast assembly, simple structure, easy operation, convenient disassembly and high work efficiency.
Description
Technical field
The present invention relates to high power VBG ECLD wavelength locking technical field, be specifically related to VBG exocoel half
Conductor laser fast axis collimation lens package technique field.
Background technology
Semiconductor laser array (LDA) is in Laser Processing, the field extensive application such as military, medical, the most very
It is important that be applied to pumped solid laser system as pumping source.
Due to the waveguiding structure that semiconductor laser is special, its fast axis divergence angle is 30～60 °, slow axis divergence be 5～
15°.Bigger fast axis divergence angle limits the direct application of semiconductor laser, needs to enter the light beam of laser instrument quick shaft direction
Row compression.Most-often used FAC(fast axis collimation lens) realize the collimation of semiconductor laser quick shaft direction light beam.
LDA is as pumping source, it is desirable to the absorbing wavelength of its peak wavelength coupling solid operation material, high efficiency to obtain
Solid State Laser exports.Owing to solid-state operation material is the narrowest to the absorption spectrum width of pump light, and the centre wavelength of LDA is with variations injunction temperature
Being its intrinsic physical characteristic, its variation with temperature rate is about 0.3nm/ DEG C, so work in wider ambient temperature range
Easily causing the centre wavelength of semiconductor laser and the absorbing wavelength mismatch of Solid State Laser, in recent years, people use Prague
The feedback system of body grating realizes the wavelength locking of superpower laser array and narrowing of spectral line width, to strengthen LDA pair
The adaptability of environment, expands its range of application.
The light of LDA outgoing after FAC collimated, arrive VBG(Volume Bragg grating) and major part will transmit through VBG, and
Wavelength then has part to be reflected back by VBG at the light beam of VBG central wavelength.VBG swashs with quasiconductor as external feedback element
Light device constitutes external cavity laser.
Owing to VBG ECLD needs to assemble with FAC collimating lens, if according to semiconductor laser FAC
The curing mode of collimating lens, it is impossible to meet the combination assembling of body grating and collimating lens.So to VBG cavity semiconductor laser
Device FAC collimating lens takes novel assembling Fixed Design to be particularly important.
Therefore, FAC collimating lens is mutually perpendicular to lens tray how to provide one ensure that, it is achieved the two quick
Assembling, simple in construction, small volume, processing ease, the VBG ECLD fast axis collimation lens of convenient disassembly assemble
Device and method, is that those skilled in the art need badly and solve the technical problem that.
Summary of the invention
The technical problem to be solved in the present invention, is to provide a kind of VBG ECLD fast axis collimation lens and assembles
Device and method, it is possible to ensure that FAC collimating lens and lens tray are mutually perpendicular to assemble, it is achieved the quick assembling of the two, structure
Simply, small volume, processing ease, convenient disassembly, work efficiency is high.
For solving above-mentioned technical problem, the technical solution used in the present invention is:
A kind of VBG ECLD fast axis collimation lens assembling device, including the metal for placing FAC collimating lens
Carrier, space bar and the metal derby being pressed in FAC collimating lens top；Described metallic carrier top is provided with a right-angle surface, right angle
Face is for placing the orthogonal FAC collimating lens and lens tray needing to assemble, and the length of right-angle surface is saturating with fast axis collimation
Mirror is suitable；The transverse section of described space bar is rectangle, and thickness sets as requested, and space bar can be close to the facade of right-angle surface
Coordinate.
As preferably, the transverse section of described right-angle surface tilts upward.
As preferably, described right-angle surface is 10 °～30 ° relative to the inclination angle a of horizontal direction.
As preferably, between described space bar and the facade of right-angle surface and the lower surface of lens tray and FAC collimating lens
Between all fixed by ultra-violet curing glue.
As preferably, the thickness of described ultra-violet curing glue is 1mm.
As preferably, described metal derby is rectangle column, and its length is identical with FAC collimating lens length.
A kind of VBG ECLD fast axis collimation lens assemble method, use above-mentioned according to any one of one
Plant VBG ECLD fast axis collimation lens assembling device to assemble, comprise the following steps: A) space bar is placed in
On the facade of the right-angle surface of metallic carrier, fit tightly with the facade of right-angle surface；B) lens tray is placed in the straight of metallic carrier
On the plane of structure of edged surface, on the facade of the right-angle surface that the side end face of lens tray is against metallic carrier；C) at lens tray upper surface
Ultra-violet curing glue is smeared in the position placing FAC collimating lens；D) FAC collimating lens is disposed vertically in the way of moving in parallel in
On lens tray, and the plane of FAC collimating lens is close to space bar；E) metal derby is positioned on FAC collimating lens, to it
Impose gravitational pressure, make FAC collimating lens fit with lens tray；F) alignment FAC collimating lens and lens tray joint place, right
It carries out ultraviolet light irradiation, after having solidified, removes metal derby, can be taken out in the lump with lens tray by FAC collimating lens.
Use and have the beneficial effects that produced by technique scheme: this assembling device includes being provided with the metal of right-angle surface and carries
Body, and fixed interval plate on the facade of right-angle surface, be disposed vertically in being positioned at straight in the way of moving in parallel by FAC collimating lens
On the lens tray of edged surface plane of structure, and it is close to described space bar, metal derby is positioned on FAC collimating lens, it is imposed
Gravitational pressure, makes FAC collimating lens fit with lens tray.It is then aligned with FAC collimating lens and lens tray joint place, to it
Carry out ultraviolet light irradiation, after having solidified, remove metal derby, FAC collimating lens can be taken out in the lump with lens tray.This
Assembling device and assemble method use metal derby, can press FAC collimating lens under not lens damage premise, reach fixing FAC
The purpose of collimating lens, meets low displacement or the effect that unshifts when solidification the most simultaneously, after the solidification is complete, removes metal derby,
FAC collimating lens can be taken out in the lump with lens tray.Have simple in construction, small volume, processing ease, convenient disassembly,
The feature that work efficiency is high.
Accompanying drawing explanation
Fig. 1 is the structural representation of one embodiment of assembling device of the present invention；
Fig. 2 is the lateral plan of Fig. 1；
Each figure number is entitled: 1 metallic carrier, 2 space bars, 3 metal derbies, 4 FAC collimating lens, 5 lens trays,
6 right-angle surface, a right-angle surface is relative to the inclination angle of horizontal direction.
Detailed description of the invention
Below in conjunction with the accompanying drawings and an embodiment the present invention is further detailed explanation.
As shown in Figure 1 and Figure 2, the assembling device of the present invention includes the metallic carrier 1 for placing FAC collimating lens 4,
Dividing plate 2 and the metal derby 3 being pressed in FAC collimating lens 4 top；Described metallic carrier 1 top is provided with a right-angle surface 6, right-angle surface 6
For placing the orthogonal FAC collimating lens 4 and lens tray 5 needing to assemble, the length of right-angle surface 6 is saturating with fast axis collimation
Mirror is suitable；The transverse section of described space bar 2 is rectangle, and thickness sets as requested, and space bar 2 can be with the facade of right-angle surface 6
Snug fit.
Having the beneficial effects that of said apparatus: space bar 2 and lens tray 5 are owing to being placed on the metal being provided with right-angle surface 6
Being mutually perpendicular on the facade of carrier 1 and plane of structure, FAC collimating lens 4 is by being close to space bar 2 to ensure to hang down with lens tray 5
Directly, the thickness of space bar 2 ensures that FAC collimating lens 4 and the edge of lens tray 5 keep suitable collimator distance, metal simultaneously
Block 3 imposes gravitational pressure to reduce FAC collimating lens 4 because of liquid adhesion strength and lens tray 5 generation to FAC collimating lens 4
Gap, makes FAC collimating lens 4 low displacement or unshift when solidification, after the solidification is complete, removes metal derby 3, can be by FAC
Collimating lens 4 takes out in the lump with lens tray 5.The metallic carrier 1 containing right-angle surface 6 that this device uses, is used for ensureing that FAC is accurate
Straight lens 4 are mutually perpendicular to lens tray 5, provide condition for follow-up collimated process, convenient simple；Space bar 2 energy used
Make the collimator distance that FAC collimating lens 4 is certain with lens tray 5 border, lay the foundation for follow-up collimated process；Use
Metal derby 3, can press FAC collimating lens 4 under not lens damage premise, reaches the purpose of fixing FAC collimating lens 4, also same
Time meet the low displacement or the effect that unshifts when solidification, after the solidification is complete, remove metal derby 3, can be by FAC collimating lens 4
Take out in the lump with lens tray 5.There is the feature of simple in construction, small volume, processing ease, convenient disassembly.
Further, the transverse section of described right-angle surface 6 tilts upward, and right-angle surface 6 is relative to the inclination angle a of horizontal direction
Be 10 °～30 °, i.e. the plane of structure of right-angle surface 6 is 10 °～30 ° with the angle of horizontal direction.Said structure design more can guarantee that solid
FAC collimating lens 4 is made to be mutually perpendicular to lens tray 5 during change.
Further, between described space bar 2 and the facade of right-angle surface 6 and lens tray 5 and FAC collimating lens 4 times
All fixed by ultra-violet curing glue between end face, and the thickness of ultra-violet curing glue is 1mm.Fixing more firm.
Further, described metal derby 3 is rectangle column, and its length is identical with FAC collimating lens 4 length.Said structure
Design ensure that FAC collimating lens 4 and described lens tray 5 uniform force, is firmly bonded reliable.
A kind of VBG ECLD fast axis collimation lens assemble method, uses VBG exocoel described above partly to lead
Body laser fast axis collimation lens assembling device assembles, and comprises the following steps: A) space bar 2 is placed in metallic carrier 1
On the facade of right-angle surface 6, fit tightly with the facade of right-angle surface 6；B) lens tray 5 is placed in the right-angle surface 6 of metallic carrier 1
On plane of structure, the side end face of lens tray 5 is against on the facade of right-angle surface 6 of metallic carrier 1；C) put at lens tray 5 upper surface
Ultra-violet curing glue is smeared in the position putting FAC collimating lens 4；D) FAC collimating lens 4 is disposed vertically in the way of moving in parallel in
On lens tray 5, and the plane of FAC collimating lens 4 is close to space bar 2；E) metal derby 3 is positioned over FAC collimating lens 4
On, it is imposed gravitational pressure, makes FAC collimating lens 4 fit with lens tray 5；F) alignment FAC collimating lens 4 and lens torr
Dish 5 joint place, carries out ultraviolet light irradiation to it, after having solidified, removes metal derby 3, can be by FAC collimating lens 4 with saturating
Mirror pallet 5 takes out in the lump.
Above-mentioned assemble method uses metal derby 3, can press FAC collimating lens 4, reach fixing under not lens damage premise
The purpose of FAC collimating lens 4, meets low displacement or the effect that unshifts when solidification the most simultaneously, after the solidification is complete, removes metal
Block 3, can take out with lens tray 5 in the lump by FAC collimating lens 4.Processing ease, convenient disassembly, work efficiency are high.
Principle and the embodiment of the present invention are set forth by specific case used herein, saying of above example
Bright method and the core concept thereof being only intended to help to understand the present invention.It should be pointed out that, the ordinary skill for the art
For personnel, under the premise without departing from the principles of the invention, it is also possible to the present invention is carried out some improvement and modification, these improve
Also fall in the protection domain of the claims in the present invention with modifying.
Claims (7)
1. a VBG ECLD fast axis collimation lens assembling device, it is characterised in that: include for placing FAC
The metallic carrier (1) of collimating lens (4), space bar (2) and be pressed in the metal derby (3) on FAC collimating lens (4) top；Described gold
Belonging to carrier (1) top and be provided with a right-angle surface (6), right-angle surface (6) needs the orthogonal FAC assembled to collimate thoroughly for placing
Mirror (4) and lens tray (5), the length of right-angle surface (6) is suitable with fast axis collimation lens；The transverse section of described space bar (2)
For rectangle, thickness sets as requested, and space bar (2) can be with the facade snug fit of right-angle surface (6).
A kind of VBG ECLD fast axis collimation lens assembling device the most according to claim 1, its feature exists
In: the transverse section of described right-angle surface (6) tilts upward.
A kind of VBG ECLD fast axis collimation lens assembling device the most according to claim 2, its feature exists
In: described right-angle surface (6) is 10 °～30 ° relative to the inclination angle a of horizontal direction.
A kind of VBG ECLD fast axis collimation lens assembling device the most according to claim 1, its feature exists
In: between the facade of described space bar (2) and right-angle surface (6) and lens tray (5) and FAC collimating lens (4) lower surface it
Between all fixed by ultra-violet curing glue.
A kind of VBG ECLD fast axis collimation lens assembling device the most according to claim 4, its feature exists
In: the thickness of described ultra-violet curing glue is 1mm.
A kind of VBG ECLD fast axis collimation lens assembling device the most according to claim 1, its feature exists
In: described metal derby (3) is rectangle column, and its length is identical with FAC collimating lens (4) length.
7. a VBG ECLD fast axis collimation lens assemble method, it is characterised in that: use in right 1 to 6 and appoint
One described a kind of VBG ECLD fast axis collimation lens assembling device assembles, and comprises the following steps: A)
Space bar (2) is placed on the facade of right-angle surface (6) of metallic carrier (1), fits tightly with the facade of right-angle surface (6)；B) will
Lens tray (5) is placed on the plane of structure of right-angle surface (6) of metallic carrier (1), and the side end face of lens tray (5) is against metallic carrier
(1) on the facade of right-angle surface (6)；C) ultraviolet is smeared in the position at lens tray (5) upper surface placement FAC collimating lens (4)
Solidification glue；D) FAC collimating lens (4) is disposed vertically in the way of moving in parallel on lens tray (5), and FAC collimation
The plane of lens (4) is close to space bar (2)；E) metal derby (3) is positioned on FAC collimating lens (4), it is imposed gravity pressure
Power, makes FAC collimating lens (4) fit with lens tray (5)；F) alignment FAC collimating lens (4) and lens tray (5) joint place,
It is carried out ultraviolet light irradiation, after having solidified, removes metal derby (3), can be by FAC collimating lens (4) and lens tray
(5) take out in the lump.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610955100.9A CN106324852B (en) | 2016-10-27 | 2016-10-27 | A kind of VBG external cavity semiconductor laser fast axis collimation lens assembling device and method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610955100.9A CN106324852B (en) | 2016-10-27 | 2016-10-27 | A kind of VBG external cavity semiconductor laser fast axis collimation lens assembling device and method |
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| CN106324852A true CN106324852A (en) | 2017-01-11 |
| CN106324852B CN106324852B (en) | 2019-03-12 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110618512A (en) * | 2019-07-24 | 2019-12-27 | 嘉兴旭锐电子科技有限公司 | Positioning block, optical positioning system and method based on positioning block and functional module |
| CN113671656A (en) * | 2021-10-25 | 2021-11-19 | 北京凯普林光电科技股份有限公司 | FAC mirror adjusting system and adjusting method |
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| CN206115051U (en) * | 2016-10-27 | 2017-04-19 | 中国电子科技集团公司第十三研究所 | VBG external cavity semiconductor laser fast axis collimating lens assembly device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113671656A (en) * | 2021-10-25 | 2021-11-19 | 北京凯普林光电科技股份有限公司 | FAC mirror adjusting system and adjusting method |
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