CN110308527A - A kind of optically coupled device of laser - Google Patents
A kind of optically coupled device of laser Download PDFInfo
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- CN110308527A CN110308527A CN201910674092.4A CN201910674092A CN110308527A CN 110308527 A CN110308527 A CN 110308527A CN 201910674092 A CN201910674092 A CN 201910674092A CN 110308527 A CN110308527 A CN 110308527A
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- laser
- laser unit
- unit
- collimation lens
- axis collimation
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- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims abstract description 41
- 239000013307 optical fiber Substances 0.000 claims description 16
- 230000010287 polarization Effects 0.000 claims description 6
- 238000009738 saturating Methods 0.000 claims description 6
- 230000003447 ipsilateral effect Effects 0.000 claims description 5
- 230000003287 optical effect Effects 0.000 claims description 5
- 230000008878 coupling Effects 0.000 abstract description 35
- 238000010168 coupling process Methods 0.000 abstract description 35
- 238000005859 coupling reaction Methods 0.000 abstract description 35
- KPHWPUGNDIVLNH-UHFFFAOYSA-M diclofenac sodium Chemical compound [Na+].[O-]C(=O)CC1=CC=CC=C1NC1=C(Cl)C=CC=C1Cl KPHWPUGNDIVLNH-UHFFFAOYSA-M 0.000 description 12
- 238000000034 method Methods 0.000 description 10
- 239000000835 fiber Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000003760 hair shine Effects 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/42—Coupling light guides with opto-electronic elements
- G02B6/4201—Packages, e.g. shape, construction, internal or external details
- G02B6/4204—Packages, e.g. shape, construction, internal or external details the coupling comprising intermediate optical elements, e.g. lenses, holograms
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/42—Coupling light guides with opto-electronic elements
- G02B6/4201—Packages, e.g. shape, construction, internal or external details
- G02B6/4204—Packages, e.g. shape, construction, internal or external details the coupling comprising intermediate optical elements, e.g. lenses, holograms
- G02B6/4214—Packages, e.g. shape, construction, internal or external details the coupling comprising intermediate optical elements, e.g. lenses, holograms the intermediate optical element having redirecting reflective means, e.g. mirrors, prisms for deflecting the radiation from horizontal to down- or upward direction toward a device
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/09—Processes or apparatus for excitation, e.g. pumping
- H01S3/091—Processes or apparatus for excitation, e.g. pumping using optical pumping
- H01S3/094—Processes or apparatus for excitation, e.g. pumping using optical pumping by coherent light
- H01S3/094003—Processes or apparatus for excitation, e.g. pumping using optical pumping by coherent light the pumped medium being a fibre
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- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Electromagnetism (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- Optical Couplings Of Light Guides (AREA)
Abstract
The present invention discloses a kind of optically coupled device of laser, including pedestal, first laser unit and second laser unit；Adjacent first laser unit and second laser unit is staggeredly arranged in a first direction and upper direction is opposite in a second direction；Laser cell include in a second direction on the laser, fast axis collimation lens, slow axis collimation lens and the first reflecting mirror that are sequentially arranged.In first laser unit, the first spacing is formed between one end end face and slow axis collimation lens on laser far from fast axis collimation lens；In second laser unit, the second spacing is formed between one end end face and slow axis collimation lens on laser far from fast axis collimation lens；First spacing and the projection of second spacing in a second direction have overlapping region.Overlapping region length is m, the overall width L=2d+2e+2a+2c-m of laser coupling module on pedestal, the overall width L0=2a+2c+b+2d+2e of existing laser coupling module, L0-L=b+m, then L < L0, making laser coupling module, occupied space is small and compact-sized on the base.
Description
Technical field
The present invention relates to semiconductor laser technique fields, and in particular to a kind of optically coupled device of laser.
Background technique
Optical fiber laser is now widely used for each neck since its brightness is high, the good feature for going with coherence of monochromaticjty
Domain.Optical fiber laser is usually made of seed light, fiber coupling pump module, Active Optical Fiber and fiber bragg grating.Optical fiber
Coupling pumping module is responsible for optical fiber laser and provides energy, and the common technology of fiber coupling pump module has space to close beam at present
And polarization coupling.
For example, a kind of laser fiber coupling package device disclosed in the prior art, as shown in Figure 1 comprising pedestal
1, front-seat laser group and heel row laser group, the second reflecting mirror 6 and the polarized lens 10 symmetrically and being side by side located on pedestal 1.Wherein
Front-seat laser group is identical with the internal structure and arrangement mode of heel row laser group.Front-seat laser group includes by left-to-right gradually by upper
Towards the multiple laser cells for being downwards in step arrangement；Each laser cell includes laser, and laser is chip of laser, if
Fast axis collimation lens on laser light-emitting surface, slow axis collimation lens corresponding with fast axis collimation lens, and it is located at slow axis standard
Straight lens go out the first reflecting mirror in light optical path, and the light irradiated on slow axis collimation lens is reflected into second instead by the first reflecting mirror
It penetrates on mirror 6, then is reflected on polarized lens 10 through the second reflecting mirror；And in each laser chip unit of heel row laser chip group
The first reflecting mirror the light irradiated on slow axis collimation lens is directly reflected on polarized lens 10, the work through polarized lens 10
It is all irradiated on condenser lens with the laser for issuing laser in front-seat laser group and heel row laser group, and then realizes and close beam.
For the laser, fast axis collimation lens, slow axis collimation lens and the first reflecting mirror difference convenient for stating, in front-seat laser cell
It is expressed as first laser device 21, the first fast axis collimation lens 31, the first slow axis collimation lens 41, the first reflecting mirror I51；Heel row
Laser, fast axis collimation lens, slow axis collimation lens and the first reflecting mirror in laser cell are expressed as second laser respectively
22, the second fast axis collimation lens 32, the second slow axis collimation lens 42, the first reflecting mirror II52.
In above-mentioned laser fiber coupling package device, as shown in Figure 1, face in heel row laser group and front-seat laser group
Preceding laser cell and rear laser cell in, the distance between adjacent first laser device 21 and second laser 22 be b；It is each
In laser cell, by taking front-seat laser cell as an example, in the width direction of pedestal, the length of first laser device 21 is corresponding
The first fast axis collimation lens 31 thickness and 21 light-emitting surface of first laser device and the first fast axis collimation lens 31 between away from
It is c from the sum of three；The distance between first fast axis collimation lens 31 and the first slow axis collimation lens 32 are a, and the first slow axis is quasi-
Straight lens 41 with a thickness of e, between the outermost end of the first reflecting mirror I51 and the outermost end of corresponding first slow axis collimation lens 41
Distance is d.Then in entire laser coupled packaging, the overall width L0=2a+2c+b+2d+2e of laser coupling module, so that
Laser coupling module takes up space in the width direction of pedestal greatly and structure is not compact.
Summary of the invention
In the optically coupled device of existing laser to be solved by this invention, width of the laser coupling module in pedestal
The upper the space occupied of Fang Fangxiang is big and structure is not compact.
For this purpose, the present invention provides a kind of optically coupled device of laser, including
Pedestal；
At least one first laser unit and at least one second laser unit, are located on the pedestal, adjacent is described
First laser unit and second laser unit are staggeredly arranged in a first direction and along perpendicular in the second directions of first direction
Towards on the contrary；
Any laser cell include in a second direction on the laser, fast axis collimation lens, the slow axis that are sequentially arranged it is quasi-
Straight lens and the first reflecting mirror, the fast axis collimation lens are located on the light-emitting surface of the laser, the slow axis collimation lens
Incidence surface it is corresponding with the light-emitting surface of the fast axis collimation lens, the reflecting surface of first reflecting mirror and slow axis collimation are saturating
The light-emitting surface of mirror is corresponding；The laser in laser and second laser unit in first laser unit is located at first laser unit
In slow axis collimation lens and second laser unit in slow axis collimation lens between；
In first laser unit, shape between one end end face and slow axis collimation lens on laser far from fast axis collimation lens
At the first spacing；In second laser unit, on laser far from fast axis collimation lens one end end face and slow axis collimation lens it
Between form the second spacing；First spacing and the projection of second spacing in a second direction have overlapping region.
Optionally, the optically coupled device of above-mentioned laser, laser and the second laser in first laser unit
The projection of laser in this second direction in unit is staggered.
Still optionally further, the optically coupled device of above-mentioned laser, the adjacent first laser unit and second swash
In light unit, light-emitting surface that the first laser unit and second laser unit pass through the laser in the first laser unit
It is staggered with the light-emitting surface of the laser of the second laser unit and is staggeredly arranged in described in said first direction.
Optionally, the optically coupled device of above-mentioned laser, the adjacent first laser unit and second laser unit
In, the laser that the laser in first laser unit is avoided in the part and the second laser unit of its light-emitting surface avoids it
The projection of the part of light-emitting surface in said first direction has overlapping region.
Optionally, the optically coupled device of above-mentioned laser, the first laser unit is at least two, described first
On direction, the first laser unit from the first laser unit of starting point to end is successively in the ladder arrangement under；
And/or
The second laser unit is at least two, in said first direction, from the second laser unit of starting point to
The second laser unit of end is successively in the ladder arrangement under；The first laser unit of starting point and starting point
Second laser unit be located at it is ipsilateral.
Optionally, the optically coupled device of above-mentioned laser, the first laser unit and the second laser unit exist
It is successively alternately arranged on the first direction.
Optionally, the optically coupled device of above-mentioned laser, the pedestal are equipped with and the first laser unit or the
The one-to-one step of dual-laser unit；The step surface of same step is equipped with adjacent first laser unit and second laser list
Member.
Optionally, the optically coupled device of above-mentioned laser, the step surface of same step is equipped with to be staggered along first direction
First boss and second boss；
The first laser unit on same step and the laser in second laser unit are respectively provided at described first
On boss and second boss.
Optionally, the optically coupled device of above-mentioned laser, further include be located at the laser cell of least significant end outside
Two-mirror and spectroscope, the spectroscope have first plane of incidence and second plane of incidence adjacent with first plane of incidence；
Wherein, one in the reflecting surface of second reflecting mirror and spectroscopical first plane of incidence is for receiving the
The light that first reflecting mirror of one laser cell reflects, another first reflecting mirror for being used to receive second laser unit reflect
Light, the reflecting surface of second reflecting mirror corresponds to spectroscopical second plane of incidence；And
The condenser lens being located in the optical path of spectroscopical light-emitting surface opposite with first plane of incidence；And it is located at
Optical fiber on the focus point at the condenser lens rear.
Optionally, the optically coupled device of above-mentioned laser, the spectroscope are two to dichronic mirror or the spectroscope
For polarization spectroscope, spectroscopical second plane of incidence is equipped with half-wave plate.
Technical solution of the present invention has the advantages that
1. the optically coupled device of laser provided by the invention, including pedestal, set on the base at least one first swash
Light unit and at least one second laser unit；The adjacent first laser unit and second laser unit are in a first direction
It is staggeredly arranged and along the second party perpendicular to first direction upwardly toward opposite；Any laser cell includes in a second direction
On the laser, fast axis collimation lens, slow axis collimation lens and the first reflecting mirror that are sequentially arranged, the fast axis collimation lens are located at
On the light-emitting surface of the laser, the incidence surface of the slow axis collimation lens is corresponding with the light-emitting surface of the fast axis collimation lens,
The reflecting surface of first reflecting mirror is corresponding with the light-emitting surface of the slow axis collimation lens；Laser in first laser unit and
Laser in second laser unit is located at the slow axis in the slow axis collimation lens and second laser unit in first laser unit
Between collimation lens.
The optically coupled device of the laser of this structure, in first laser unit, far from fast axis collimation lens on laser
The first spacing is formed between one end end face and slow axis collimation lens；It is saturating far from fast axis collimation on laser in second laser unit
The second spacing is formed between one end end face and slow axis collimation lens of mirror；First spacing and second spacing are in second party
Upward projection has overlapping region.Assuming that the length of the overlapping region is m, the then beam overall of the laser coupling module on pedestal
L=2d+2e+L1+L2-m=2d+2e+2a+2c-m is spent, it is total due to the laser coupling module in background technique on pedestal
Width L0=2a+2c+b+2d+2e, then L0-L=(2a+2c+b+2d+2e)-(2d+2e+2a+2c-m)=b+m, due to b >
0, m > 0, so the width of L < L0 namely the laser coupling module of the application in the width direction of pedestal is less than existing
Width of the laser coupling module in the width direction of pedestal keeps the laser coupling module of the application occupied on the base
Space it is small and compact-sized.
Laser and the second laser 2. the optically coupled device of laser provided by the invention, in first laser unit
The projection of laser in this second direction in unit is staggered, then makes the first spacing and the second spacing in a second direction
Projection overlapping region length m it is bigger, and then L is smaller relative to L0, further makes the laser coupled mode of the application
Occupied space is small on the base and more compact structure for block.
3. the optically coupled device of laser provided by the invention, the adjacent first laser unit and second laser unit
In, the first laser unit and second laser unit by the light-emitting surface of the laser in the first laser unit with it is described
The light-emitting surface of the laser of second laser unit is staggered in said first direction and is staggeredly arranged in described；It is further adjacent
The first laser unit and second laser unit in, the laser in first laser unit avoid its light-emitting surface part and
Laser in the second laser unit avoids the projection of the part of its light-emitting surface in said first direction with overlay region
Domain, so that the laser light-emitting surface of second laser unit be made to be located just at two neighboring first laser unit in a first direction
Two lasers between, then in a first direction, the length of laser coupling module is that starting point is swashed in first laser unit
The starting point of light device stretches out the to the third distance between the end of end laser, with end laser in second laser unit
The sum of the length of one laser cell end laser swashs so that laser coupling module is reduced along the length of first direction
The arrangement of light device coupling module in the first direction and a second direction is more compact, and entire laser coupling module is shared on the base
Space is smaller.
4. the optically coupled device of laser provided by the invention, the first laser unit is at least two, described the
On one direction, the first laser unit from the first laser unit of starting point to end is successively in the ladder cloth under
Set and/or the second laser unit be at least two, in said first direction, from the second laser unit of starting point to
The second laser unit of end is successively in the ladder arrangement under；The first laser unit of starting point and starting point
Second laser unit be located at it is ipsilateral, realize on different height in multiple first laser units and second laser unit swash
Light carries out conjunction beam, improves the quality and brightness of laser after closing beam.
Detailed description of the invention
It, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution in the prior art
Embodiment or attached drawing needed to be used in the description of the prior art be briefly described, it should be apparent that, it is described below
Attached drawing is some embodiments of the present invention, for those of ordinary skill in the art, before not making the creative labor
It puts, is also possible to obtain other drawings based on these drawings.
Fig. 1 is the structural schematic diagram (overlook direction) of the optically coupled device of laser in the prior art；
Fig. 2 is the structural schematic diagram (overlook direction and to the right of the optically coupled device of laser provided by the embodiments of the present application
It is rotated by 90 °)；
Fig. 3 is the partial enlarged view of the optically coupled device of laser in Fig. 2；
Fig. 4 is the schematic perspective view of the optically coupled device of laser in Fig. 3；
Fig. 5 is the structural schematic diagram (overlook direction) of the optically coupled device of laser provided in this embodiment.
Description of symbols:
1- pedestal；21- first laser device；22- second laser；The first fast axis collimation lens of 31-；32- second is fast
Axis collimation lens；41- the first slow axis collimation lens；42- the second slow axis collimation lens；The first reflecting mirror of 51- I；52- first
Reflecting mirror II；The second reflecting mirror of 6-；7- spectroscope；8- condenser lens；9- optical fiber；10- polarized lens.
Specific embodiment
Technical solution of the present invention is clearly and completely described below in conjunction with attached drawing, it is clear that described implementation
Example is a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill
Personnel's every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", "vertical",
The orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" be based on the orientation or positional relationship shown in the drawings, merely to
Convenient for description the present invention and simplify description, rather than the device or element of indication or suggestion meaning must have a particular orientation,
It is constructed and operated in a specific orientation, therefore is not considered as limiting the invention.In addition, term " first ", " second ",
" third " is used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.In addition, invention described below
Technical characteristic involved in different embodiments can be combined with each other as long as they do not conflict with each other.
Embodiment 1
The present embodiment provides a kind of optically coupled devices of laser, as shown in Figures 2 to 5 comprising pedestal 1, Duo Ge
One laser cell, multiple second laser units, the second reflecting mirror 6, spectroscope 7, condenser lens 8 and optical fiber 9.
Multiple first laser units and second laser unit are each provided on pedestal 1, and the length direction of pedestal 1 is as first party
To (left and right directions in Fig. 3), the width direction of pedestal 1 is as the second direction (front and back in Fig. 3 perpendicular to first direction
To), first laser unit and second laser unit are staggeredly arranged in a first direction and in a second direction above towards opposite.Than
Such as, multiple first laser units are located at the front row in Fig. 3, and multiple second laser units are located at the heel row in Fig. 3.
For example first laser unit is seven, second laser unit is also seven, and the specific quantity that is arranged can also be other
The quantity of quantity, first laser unit and the setting of second laser unit can be different, can also be identical.Most preferably, first laser
Unit is consistent with the setting quantity of second laser unit, as shown in Fig. 2, first laser unit and second laser in a first direction
Unit is in successively to be alternately arranged on pedestal 1.
In a first direction, first laser unit of multiple first laser units on pedestal 1 from starting point is (in Fig. 3
Left end) the first laser unit (right end in Fig. 3) of end is arrived successively in the ladder arrangement under；Similarly, exist
On first direction, multiple second laser units are from the second laser unit (left end in Fig. 3) of starting point to the second of end
Laser cell (right end in Fig. 3) is successively in the ladder arrangement under；The first laser unit of starting point and starting point
Second laser unit be located at it is ipsilateral, so that multiple first laser units be made to be staggered in height, multiple second laser units exist
It is staggered in height, convenient for multiple first laser units and multiple second laser units are carried out conjunction beam.
In order to which above-mentioned first laser unit and second laser unit arrange that pedestal 1 is equipped with and first laser in ladder
Unit or the one-to-one step of second laser element number (not illustrated in figure)；The step surface of same step is equipped with adjacent
First laser unit and second laser unit.
For example, first laser unit and second laser unit are seven, accordingly, pedestal 1 is equipped with the left side from Fig. 3
Hold in Fig. 3 right end successively by seven steps being sequentially arranged under upper direction, the step surface of each step is equipped with one first
Laser cell and a second laser unit, to realize that multiple first laser units and second laser unit are arranged in ladder.
First laser unit is identical with the structure of the inside of second laser unit, as shown in Figures 2 and 3, now swashs with first
Illustrate the internal structure of laser cell for light unit, first laser unit include in a second direction on the laser that is sequentially arranged
Device, fast axis collimation lens, slow axis collimation lens and the first reflecting mirror, fast axis collimation lens are located on the light-emitting surface of laser, slowly
The incidence surface of axis collimation lens and the light-emitting surface of fast axis collimation lens are corresponding, the reflecting surface and slow axis collimation lens of the first reflecting mirror
Light-emitting surface it is corresponding.
In order to express easily, by laser, fast axis collimation lens, the slow axis collimation lens, first in first laser unit
Reflecting mirror is expressed as first laser device 21, the first fast axis collimation lens 31, the first slow axis collimation lens 41 respectively；First reflecting mirror
I51；Laser, fast axis collimation lens, slow axis collimation lens, the first reflecting mirror in second laser unit are expressed as second respectively
Laser 22, the second fast axis collimation lens 32, the second slow axis collimation lens 42, the first reflecting mirror II52.
Wherein, the first laser device 21 in first laser unit, the first fast axis collimation lens 31, the first slow axis collimation lens
41 and first reflecting mirror I51 arranged backward by the previous dynasty in a second direction, the second laser 22, second in second laser unit
Fast axis collimation lens 32, the second slow axis collimation lens 42 and the first reflecting mirror II52 in a second direction by being arranged before rear direction,
To make first laser unit and second laser unit towards opposed on pedestal 1, in first laser unit first
Second laser 22 in laser 21 and second laser unit is located at the first slow axis collimation lens 41 in first laser unit
Between the second slow axis collimation lens 42 in second laser unit.
In addition, on the step surface of each step of pedestal 1 be equipped be staggered in a first direction and towards protrude above first
Boss and second boss (not illustrated in figure)；The first laser device 21 and second laser of first laser unit on same step
Second laser 22 in unit is respectively provided in first boss and second boss, convenient for first laser device 21 and second laser
Device 22 it is fixed and positioned.Optionally, first laser device 21 and second laser 22 can use diode in the present embodiment
Chip of laser.
As shown in Figures 2 and 3, in first laser unit, far from the first fast axis collimation lens 31 in first laser device 21
One end end face (front end face of first laser device in Fig. 3) and the first slow axis collimation lens 41 (the first slow axis collimation lens in Fig. 3
Front end face) between the first spacing for being formed be L1；In second laser unit, far from the second fast axis collimation on second laser 22
(the second slow axis is quasi- in Fig. 3 with the second slow axis collimation lens 42 for one end end face (rear end face of second laser in Fig. 3) of lens 32
The rear end face of straight lens) between the second spacing for being formed be L2；The projection tool of first spacing and the second spacing in a second direction
The length for having the overlapping region in overlapping region, such as Fig. 3 is m.
Assuming that accordingly in each laser cell, by taking first laser unit as an example, in a second direction, first laser device 21
The thickness of length the first fast axis collimation lens 31 corresponding with its and the light-emitting surface of first laser device 21 and the first fast axle it is quasi-
The distance between straight lens 31 be three's and be c.First fast axis collimation lens 31 are fixed on the light-emitting surface of first laser device 21,
After the distance between the light-emitting surface of first laser device 21 and the first fast axis collimation lens 31 namely the first fast axis collimation lens 31
The distance of focal length.The distance between first fast axis collimation lens 31 and the first slow axis collimation lens 41 are a, and the first slow axis collimation is saturating
Mirror 41 with a thickness of e, the distance between outermost end of the outermost end of the first reflecting mirror I51 and the first slow axis collimation lens 41 is d,
The length of the overlapping region of first spacing and the second spacing is m, by Fig. 2 and Fig. 3 it is found that L1=L2=a+c, then in the present embodiment
The overall width L=2d+2e+L1+L2-m=2d+2e+2a+2c-m of laser coupling module on pedestal, due to background technique
The overall width L0=2a+2c+b+2d+2e of laser coupling module on middle pedestal, then L0-L=(2a+2c+b+2d+2e)-
(2d+2e+2a+2c-m)=b+m, due to b > 0, m > 0, so the laser coupling module in L < L0 namely the present embodiment
It is less than width of the existing laser coupling module in the width direction of pedestal 1 in the width in the width direction of pedestal 1, makes
The laser coupling module of the present embodiment occupied space on pedestal 1 is small and compact-sized.
As shown in Figures 2 and 3, further, in the first laser device 21 and second laser unit in first laser unit
The projection in a second direction of second laser 22 be staggered, then make the first spacing L1 and the second spacing L2 in a second direction
Projection overlapping region length m it is bigger, and then L is smaller relative to L0, further couples the laser of the present embodiment
Module occupied space on pedestal 1 is small and more compact structure.
As shown in Fig. 2, first laser unit and second laser unit pass through the first laser device 21 in first laser unit
Light-emitting surface and the second laser 22 of second laser unit light-emitting surface be staggered in a first direction and in being staggeredly arranged.
For example, the first laser device 21 in first laser unit is avoided in the part and second laser unit of its light-emitting surface
Second laser 22 avoids the projection of the part of its light-emitting surface in a first direction with overlapping region, thus in a first direction
Swash so that 22 light-emitting surface of second laser of second laser unit is located just at two first of two neighboring first laser unit
Between light device 21, then in a first direction, the length of laser coupling module swashs for first of starting point in first laser unit
The third distance L3 between the end (right end in Fig. 3) of end first laser device 21 is arrived in the starting point (left end in Fig. 3) of light device 21,
The length L4 of the first laser device 21 of first laser cell end is stretched out with the second laser 22 of end in second laser unit
The sum of, so that laser coupling module is reduced along the length of first direction on the base, and then laser coupling module exists
Arrangement on first direction and second direction is more compact, and entire laser coupling module occupied space on pedestal 1 is smaller.
As shown in Figure 2 and Figure 4, the second reflecting mirror 6 and spectroscope 7 are located at the outside of the laser cell of least significant end, for example, the
Two-mirror 6 and spectroscope 7 are located at the outside (right side in Fig. 4) of the second laser unit of least significant end, and spectroscope 7 has first
The plane of incidence 71 and second plane of incidence 72 adjacent with first plane of incidence, the light-emitting surface of spectroscope 7 are opposite with first plane of incidence.Than
Such as, spectroscope 7 is two to dichronic mirror, and two are respectively equipped with anti-reflection film and more on first plane of incidence and second plane of incidence of dichronic mirror
Layer dielectric.
Wherein, the second reflecting mirror 6 is located at the outermost of the second laser unit of least significant end, and reflecting surface is all for receiving
Second laser unit the reflecting surface and second of light namely all first reflecting mirror II52 that reflects of the first reflecting mirror II52
The reflecting surface of reflecting mirror is corresponding；Two are then located at the outside of the first laser unit of least significant end to dichronic mirror, and first plane of incidence is used
In the light that the first reflecting mirror I51 for receiving all first laser units is reflected；Meanwhile second reflecting mirror 6 reflecting surface with
Second plane of incidence of spectroscope 7 is corresponding, and the light that the second reflecting mirror 6 reflects all is radiated on second plane of incidence, thus the
The light that first reflecting mirror I51 of one laser cell and the first reflecting mirror II52 of second laser unit are reflected passes through two to points
The light-emitting surface of Look mirror closes beam and shines out.
As shown in Figure 4 and Figure 5, condenser lens 8 is located in the optical path of the light-emitting surface of spectroscope 7；Optical fiber 9 is located at condenser lens
On the focus point at 8 rears, so that the two light line focus lens 8 irradiated to dichronic mirror focus the light for being formed and being coupled and enter optical fiber 9
In, the laser of multiple first laser units and multiple second units is subjected to conjunction beam to realize, improves the optical coupling of laser
Device closes the quality and power of the laser after beam.
It is two to dichronic mirror from spectroscope 7 in this present embodiment, realization carries out conjunction beam to the laser of different wave length, then right
The laser that the second laser 22 in the first laser device 21 and second laser unit in first laser unit answered is launched
Wavelength is different.To better understand the process for closing beam, as shown in figure 5, with from left to right (since Fig. 5 rotates to the right 90 degree, then right
Answer the direction from top to bottom in Fig. 5) the 4th first laser unit and the 4th second laser unit conjunction beam for,
First laser device 21 in first laser unit issues the laser of first wave length, shows laser with the arrow of fine line in Fig. 5
Trend, the laser is first through carrying out first time collimation by the first fast axis collimation lens 31 on fast axis direction, swashing after collimating for the first time
Light passes through the second laser 22 of the third second laser unit of heel row and the second laser of the 4th second laser unit
Gap between 22 is irradiated on the first slow axis collimation lens 41, then is carried out on slow axis by the first slow axis collimation lens 41
Secondary collimation, to form entirely collimated light；Entirely collimated light is immediately radiated on the first reflecting mirror I51 by the first reflecting mirror I51
Be radiated at after reflection on the second reflecting mirror 6, then through 6 reflected illumination of the second reflecting mirror two to dichronic mirror second plane of incidence 72
On, it is irradiated on condenser lens 8 again after the outgoing of Jing Erxiang dichronic mirror, then line focus lens 8 focus in optical fiber 9.
Launch the laser of second wave length similarly, for the second laser 22 in the 4th second laser unit, with
Heavy solid line arrows show the trend of laser in Fig. 5, which successively after the second fast axis collimation lens 32 collimation, passes through front row
The first laser device 21 of the 4th first laser unit and the first laser device 21 of the 5th first laser unit between
Gap, then be irradiated on the second slow axis collimation lens 42 and be collimated, to form entirely collimated light, entirely collimated light is through the first reflecting mirror
Direct irradiation is irradiated to focusing after the outgoing of Jing Erxiang dichronic mirror on two first planes of incidence 71 to dichronic mirror again after II52 reflection
On lens 8, line focus lens 8 are irradiated in optical fiber 9 after focusing, to realized in a fiber by the conjunction beam of the laser of different wave length
Process.
In addition, it is necessary to explanation: when using two to dichronic mirror when, due to 21 He of first laser device in first laser unit
Second laser 22 launches the laser of different wave length in second laser unit, then in corresponding above-mentioned first laser unit
The distance between one fast axis collimation lens 31 and the first slow axis collimation lens 41, it is saturating with the second fast axis collimation in second laser unit
Mirror 32 is different from the distance between the second slow axis collimation lens 42, for example, two distances are respectively a1 and a2, then above-mentioned L1=
A1+c, L2=a2+c, at this time the width L=2d+2e+L1+L2-m=2d+2e+2c+a1+a2-m of laser coupling module.
Then when the laser of two laser cells of the laser couplers in background technique also launches swashing for different wave length
Light time.Assuming that the first laser device 21 and second laser 22 of two laser cells in background technique launch different wave length
Laser (in the present embodiment in two laser cells first laser device 21 and second laser 22 launch two different wave lengths
Laser correspond) when, equally have the first fast axis collimation lens 31 and the first slow axis collimation lens 41 in first laser unit
The distance between be a1；The distance between second fast axis collimation lens 32 and the first slow axis collimation lens 41 in second laser unit
For a2, then the overall width L0=a1+a2+2c+b+2d+2e of the laser coupling module in background technique on pedestal, then L0-L=
B+m still has L < L0, so that the laser coupling module of the present embodiment is compact-sized on base width direction.
As first interchangeable embodiment of embodiment 1, above-mentioned two may be replaced with partially to dichronic mirror
Shake dichroic cube, is equipped with half-wave plate on second plane of incidence 72 of polarization spectro cube at this time, realizes swash first at this time
The laser that second laser 22 launches phase co-wavelength in the first laser device 21 and second laser unit of light unit carries out conjunction beam.
During closing beam, the light direct irradiation that the first reflecting mirror I51 of first laser unit is reflected is in polarization spectro cube
On first plane of incidence 71, it is radiated at after polarizing cube after being focused on condenser lens 8 in input optical fibre 9；Second laser unit
The light that reflects of the first reflecting mirror II52 be still first radiated on the second reflecting mirror 6, be radiated at after the reflection of the second reflecting mirror 6
On half-wave plate, light is radiated on polarizing cube again after half-wave plate changes polarization state and is reflected, and it is saturating to be irradiated to focusing
On mirror 8, line focus lens 8 are focused in optical fiber 9, realize the conjunction beam process of the laser of phase co-wavelength.
As the interchangeable embodiment of above-described embodiment, the setting of the second above-mentioned reflecting mirror 6 and spectroscope 7 can be with
It exchanges, the second reflecting mirror 6 receives the light that the first reflecting mirror I51 of all first laser units is reflected；Second reflecting mirror 6 is anti-
The light of injection is irradiated to again on second plane of incidence of spectroscope 7；Accordingly, the first reflecting mirror II52 reflection of second laser unit
Light direct irradiation out is on first plane of incidence of spectroscope 7.
As the interchangeable embodiment of above-described embodiment, can be not provided on the step surface of the same step above-mentioned
First boss and second boss directly set the second laser of the first laser device of first laser unit and second laser unit
On step surface.
As the interchangeable embodiment of above-described embodiment, first laser unit and second laser list in a first direction
Member can not be in successively to be alternately arranged, for example first laser unit is two, and second laser unit is one, two first lasers
Unit is sequentially arranged, and arranges a second laser unit or other arrangements again later, is only needed in a first direction, the
One laser cell and second laser unit are staggeredly arranged and direction in a second direction is opposite.
As the interchangeable embodiment of above-described embodiment, in adjacent first laser unit and second laser unit,
First laser device 21 in first laser unit avoids the second laser 22 in the part and second laser unit of its light-emitting surface
Overlapping region can also not had by avoiding the projection of the part of its light-emitting surface in a first direction, be swashed at this time along first direction first
The first laser device 21 of light unit and the second laser 22 of second laser unit are staggered completely.That is, adjacent first laser
In unit and second laser unit, not only light-emitting surface Yu second laser unit of the first laser device 21 of first laser unit
The light-emitting surface of second laser 22 be staggered in a first direction, but entire laser is staggeredly arranged.
As the interchangeable embodiment of above-described embodiment, first laser device 21 and second in first laser unit swash
The projection of second laser 22 in a second direction in light unit can not also be staggered, for example, in first laser unit first swash
Second laser 22 has overlapping region in a second direction in light device 21 and second laser unit, make at this time the first spacing L1 with
The length of overlapping region between second spacing L2 reduces, but still has L < L0, so that laser coupling module is in pedestal 1
Occupied space is small and compact-sized in width direction.
As the deformation of above embodiment, above-mentioned multiple steps can not be also set on pedestal 1, for example pedestal 1 is in itself
The slope surface tilted down from left to right, multiple first laser units and multiple second laser units can also be arranged in ladder.Or
Person, as deformation, the quantity of first laser unit and second laser unit can also be other quantity, but work as first laser unit
It is at least two, in a first direction, the first laser unit from the first laser unit of starting point to end is successively in by upper
Ladder arrangement under；Similarly, second laser unit is at least two, in a first direction, is swashed from the second of starting point
The second laser unit of light unit to end is successively in the ladder arrangement under；The first laser unit of starting point and rise
The second laser unit at beginning is located at ipsilateral.Certainly as deformation, first laser unit and second laser unit can also be one
It is a.
Obviously, the above embodiments are merely examples for clarifying the description, and does not limit the embodiments.It is right
For those of ordinary skill in the art, can also make on the basis of the above description it is other it is various forms of variation or
It changes.There is no necessity and possibility to exhaust all the enbodiments.And it is extended from this it is obvious variation or
It changes still within the protection scope of the invention.
Claims (10)
1. a kind of optically coupled device of laser, which is characterized in that including
Pedestal (1)；
At least one first laser unit and at least one second laser unit, are located on the pedestal (1), and adjacent described the
One laser cell and second laser unit be staggeredly arranged in a first direction and along perpendicular to first direction second party up towards
To opposite；
Any laser cell include in a second direction on the laser, fast axis collimation lens, the slow axis collimation that are sequentially arranged it is saturating
Mirror and the first reflecting mirror, the fast axis collimation lens are located on the light-emitting surface of the laser, and the slow axis collimation lens enters
Smooth surface is corresponding with the light-emitting surface of the fast axis collimation lens, the reflecting surface of first reflecting mirror and the slow axis collimation lens
Light-emitting surface is corresponding；The laser in laser and second laser unit in first laser unit is located in first laser unit
Between slow axis collimation lens in slow axis collimation lens and second laser unit；
In first laser unit, the is formed between one end end face and slow axis collimation lens on laser far from fast axis collimation lens
One spacing；In second laser unit, shape between one end end face and slow axis collimation lens on laser far from fast axis collimation lens
At the second spacing；First spacing and the projection of second spacing in a second direction have overlapping region.
2. the optically coupled device of laser according to claim 1, which is characterized in that the laser in first laser unit
It is staggered with the projection of the laser in the second laser unit in this second direction.
3. the optically coupled device of laser according to claim 1 or 2, which is characterized in that the adjacent first laser
In unit and second laser unit, the first laser unit and second laser unit pass through swashing in the first laser unit
The light-emitting surface of the laser of the light-emitting surface of light device and the second laser unit is staggered in said first direction and is in the mistake
Open arrangement.
4. the optically coupled device of laser according to claim 3, which is characterized in that the adjacent first laser unit
In second laser unit, the laser in first laser unit is avoided in the part and the second laser unit of its light-emitting surface
Laser avoid the projection of the part of its light-emitting surface in said first direction with overlapping region.
5. the optically coupled device of laser described in any one of -4 according to claim 1, which is characterized in that described first swashs
Light unit is at least two, in said first direction, from the first laser unit of starting point to the first laser unit of end
Successively in the ladder arrangement under；And/or
The second laser unit is at least two, in said first direction, from the second laser unit of starting point to end
Second laser unit be successively under ladder arrangement；The of the first laser unit of starting point and starting point
Dual-laser unit is located at ipsilateral.
6. the optically coupled device of laser according to claim 5, which is characterized in that the first laser unit with it is described
Second laser unit is successively alternately arranged in said first direction.
7. the optically coupled device of laser according to claim 6, which is characterized in that the pedestal (1) is equipped with and institute
State first laser unit or the one-to-one step of second laser unit；The step surface of same step is equipped with adjacent first and swashs
Light unit and second laser unit.
8. the optically coupled device of laser according to claim 7, which is characterized in that the step surface of same step is equipped with
The first boss and second boss being staggered along first direction；
The first laser unit on same step and the laser in second laser unit are respectively provided at the first boss
In second boss.
9. the optically coupled device of laser described in any one of -7 according to claim 1, which is characterized in that further include being located at
Second reflecting mirror (6) and spectroscope (7) in the outside of the laser cell of least significant end, the spectroscope (7) have first plane of incidence
Second plane of incidence adjacent with first plane of incidence；
Wherein, one in the reflecting surface of second reflecting mirror (6) and first plane of incidence of the spectroscope (7) is for receiving
The light that first reflecting mirror of first laser unit reflects, another is used to receive the first reflecting mirror reflection of second laser unit
Light out, the reflecting surface of second reflecting mirror (6) correspond to second plane of incidence of the spectroscope (7)；And
The condenser lens (8) being located in the optical path of the light-emitting surface opposite with first plane of incidence of the spectroscope (7)；And it sets
Optical fiber (9) on the focus point at the condenser lens (8) rear.
10. the optically coupled device of laser according to claim 9, which is characterized in that the spectroscope (7) is two to points
Look mirror or the spectroscope (7) are polarization spectroscope (7), and second plane of incidence of the spectroscope (7) is equipped with half-wave plate.
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| CN201910674092.4A CN110308527A (en) | 2019-07-24 | 2019-07-24 | A kind of optically coupled device of laser |
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| WO2021051467A1 (en) * | 2019-09-18 | 2021-03-25 | 深圳市星汉激光科技股份有限公司 | Semiconductor laser |
| CN112886390A (en) * | 2020-05-27 | 2021-06-01 | 山东华光光电子股份有限公司 | Multi-group symmetrical array high-power optical fiber coupling semiconductor laser packaging structure and method |
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Address after: 215163 No.2 workshop-1-102, No.2 workshop-2-203, zone a, industrial square, science and Technology City, No.189 Kunlunshan Road, high tech Zone, Suzhou City, Jiangsu Province Applicant after: Suzhou Changguang Huaxin Optoelectronic Technology Co.,Ltd. Applicant after: SUZHOU EVERBRIGHT SEMICONDUCTOR LASER INNOVATION RESEARCH INSTITUTE Co.,Ltd. Address before: 215163 Building 2, No.189, Kunlunshan Road, high tech Zone, Suzhou City, Jiangsu Province Applicant before: SUZHOU EVERBRIGHT PHOTONICS TECHNOLOGY Co.,Ltd. Applicant before: SUZHOU EVERBRIGHT SEMICONDUCTOR LASER INNOVATION RESEARCH INSTITUTE Co.,Ltd. |