CN208904395U - A kind of more stroke pump absorption disc lasers of cylindrical prism total reflection - Google Patents
A kind of more stroke pump absorption disc lasers of cylindrical prism total reflection Download PDFInfo
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- CN208904395U CN208904395U CN201821838769.0U CN201821838769U CN208904395U CN 208904395 U CN208904395 U CN 208904395U CN 201821838769 U CN201821838769 U CN 201821838769U CN 208904395 U CN208904395 U CN 208904395U
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Abstract
The utility model discloses a kind of cylindrical prisms to be totally reflected more stroke pump absorption disc lasers, including semiconductor laser pumping source, aspherical parabolic reflective focusing mirror, 4 90 degree of turnover cylindrical prisms, 180 degree turnover cylindrical prism and plane are received light end mirror and constituted.The reflection for carrying out 90 degree to pump light by 4 deflecting prisms, is then focused on the light of reversion on the gain media crystal of laser by aspherical parabolic reflective focusing mirror, to realize repeatedly to the pump absorption of pump light.The light that the diode pumping source of the utility model issues enters on aspherical parabolic reflective focusing mirror by aspheric collimation lens, after repeatedly being turned back by 90 degree of prisms, light is focused on light return on gain media crystal by 180 degree turnover cylindrical prism again, finally light end mirror is received by plane to close on cavity, the cylindrical prism of 36 strokes of the utility model design is totally reflected disc laser, realizes that the high efficiency of disc laser goes out light.
Description
Technical field
The utility model belongs to laser technology field, in particular to a kind of cylindrical prism is totally reflected more stroke pump absorption dish
Chip laser.
Background technique
With the continuous improvement of high-power semiconductor laser power, the complete of semiconductor pumped solid state laser gain medium is consolidated
Body solid state laser has obtained development at full speed.Disc laser is then since the thermal gradient of laser crystal is along the axial direction side of crystal
To, and it is axial parallel with output laser, so that the fuel factor for efficiently reducing plane of crystal improves output laser
Beam quality realizes solid state laser high-average power, high working efficiency, high light beam quality, high-peak power.But it passes
The shape of the solid state laser operation material of system is rodlike or lath, and the operation material thickness of disc laser is only 0.3-
05mm, this pump mode largely solve the problems, such as the crystal thermal effect of solid state laser.
Although the thickness of disk crystal is very very thin, the absorption efficiency of gain crystal is very low, this is significantly limited
The light phototransformation efficiency of disc laser is made.It is set out herein based on raising pump absorption efficiency, devises a kind of cylindrical prism
More stroke pump absorption disc lasers are totally reflected, it is very that pump absorption efficiency has directly been increased to 94% by this design
Practical pumping pumping structure.
Utility model content
The purpose of this utility model is to provide a kind of cylindrical prisms to be totally reflected more stroke pump absorption disc lasers, with
Solve the efficiency of solid state laser mentioned above in the background art.
To achieve the above object, the utility model provides the following technical solutions: a kind of more stroke pumps of cylindrical prism total reflection
Pu absorbs disc laser, comprising: and aspheric collimation lens, described aspheric collimation lens one end are equipped with diode pumping source,
The other end is connected on installation plate, is equipped with aspherical parabolic reflective focusing mirror, institute in one end far from the installation plate
The junction for stating aspheric collimation lens and the installation plate is equipped with pumping incident light hole, is equipped with and increases in the middle part of the installation plate
Beneficial dielectric crystal, the pumping incident light hole are set to the surface of gain media crystal, and the pumping incident light hole side is set
There are two 90 degree prisms of high height, the other side, which is close to be equipped with plane, receives light end mirror, there are two plane receipts light end mirror side is set
90 degree of prisms of low clearance are equipped with 180 degree between 90 degree of prisms of described two height and transfer cylindrical prism.
Preferably, the gain media crystal and the aspherical coaxial setting of parabolic reflective focusing mirror, and the gain is situated between
The back side of matter crystal is welded in cooling equipment；It is sharp for exporting that hole is equipped among the aspherical parabolic reflective focusing mirror
Light, is equipped with output v-shaped cavity coupling mirror in the hole, equipped with v-shaped cavity high reflective mirror, the V on the outside of the output v-shaped cavity coupling mirror
Type chamber high reflective mirror is coated with the high-reflecting film of output laser.
Preferably, 90 degree of prisms of the low clearance, 90 degree of prisms of Gao Gaodu, the bottom surface of 180 degree turnover cylindrical prism, plane
It receives light end mirror and gain media crystal is coplanar with, and be oppositely arranged with aspherical parabolic reflective focusing mirror.
Preferably, the incident light of the 180 degree turnover cylindrical prism and the hot spot of emergent light are in aspherical parabolic reflector
It is symmetrical on focus lamp, the plane of incidence of the 180 degree turnover cylindrical prism and the back side of aspherical parabolic reflective focusing mirror
It is coplanar, and incident light from the 180 degree turnover cylindrical prism center incident.
Preferably, 90 degree of 90 degree of prisms of the low clearance, Gao Gaodu prisms are two pairs of cylindrical mirrors, and two pairs each mutually to coordinate 90
Degree, and there is difference in height.
Preferably, 90 degree of 90 degree of prisms of the low clearance, Gao Gaodu prisms can be two pairs and are respectively connected together, can also
To be the cylindrical prism being separately formed.
Compared with prior art, the utility model has the beneficial effects that 1) by aspherical parabolic reflective focusing mirror, low
Highly 90 degree of prisms, 90 degree of prisms of Gao Gaodu and 180 degree turnover cylindrical prism may be implemented to transfer to 18 times of pump beam, and 36
Secondary absorption；
2) the processing is simple, low in cost, light beam of being transferred by total reflection will not lose pump light for 180 degree turnover cylindrical prism
Energy；
3) aspherical parabolic reflective focusing mirror relatively small spherical aberration available to pump light, improves gain media
The distributing homogeneity of hot spot on crystal, improves the beam quality of laser；
4) light that diode pumping source issues enters aspherical parabolic reflective focusing mirror by aspheric collimation lens
On, after repeatedly being turned back by 90 degree of prisms, light return is focused on gain by 180 degree turnover cylindrical prism again and is situated between by light
On matter crystal, light end mirror finally being received by plane and is closed on cavity, the cylindrical prism of 36 strokes of the utility model design is all-trans
Disc laser is penetrated, realizes that the high efficiency of disc laser goes out light.
Detailed description of the invention
It, below will be to embodiment or the prior art in order to illustrate more clearly of the technical scheme in the embodiment of the utility model
Required practical attached drawing is briefly described in description, it should be apparent that, the accompanying drawings in the following description is only the present embodiment
Some embodiments for those of ordinary skill in the art without creative efforts, can also basis
These attached drawings obtain other attached drawings.
Fig. 1 is the utility model structure diagram；
Fig. 2 be the utility model implement be 4 90 degree of prism structure schematic diagrames；
Fig. 3 is the utility model v-shaped cavity coupling mirror structural schematic diagram；
Fig. 4 is the utility model 180 degree turnover cylindrical prism structural schematic diagram；
Fig. 5 is distribution map of the pump spot on aspherical parabolic reflective focusing mirror.
1. diode pumping source in figure；2. aspheric collimation lens；3. 90 degree of prisms of low clearance；4. 90 degree of ribs of height
Mirror, 5. gain media crystal；6.180 degree turnover cylindrical prism；7. plane receives light end mirror；8. aspherical parabolic reflective focusing
Mirror；9.V type chamber high reflective mirror；10.V type chamber coupling mirror.
Specific embodiment
To keep the purpose of this utility model, technical solution and advantage clearer, below by the technology to the utility model
Scheme is described in detail.Obviously, the described embodiments are only a part of the embodiments of the utility model, rather than all
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are not before making creative work
Obtained all other embodiment is put, the range that the utility model is protected is belonged to.
Fig. 1-4 is please referred to, a kind of embodiment provided by the utility model: a kind of more strokes pumping suctions of cylindrical prism total reflection
Receive disc laser, comprising: aspheric collimation lens 2, described 2 one end of aspheric collimation lens are equipped with diode pumping source 1, separately
One end is connected on installation plate, is equipped with aspherical parabolic reflective focusing mirror 8 in one end far from the installation plate, described
The junction of aspheric collimation lens 2 and the installation plate is equipped with pumping incident light hole, is equipped with and increases in the middle part of the installation plate
Beneficial dielectric crystal 5, the pumping incident light hole are set to the surface of gain media crystal 5, the pumping incident light hole side
If the other side is close to receive light end mirror 7 equipped with plane, and the plane is received 7 side of light end mirror and is equipped with there are two 90 degree of prisms 4 of height
Two low clearances, 90 degree of prisms 3 are equipped with 180 degree between 90 degree of prisms 4 of described two height and transfer cylindrical prism 6.Such as Fig. 4 institute
Show, 180 degree turnover cylindrical prism 6, the S-LAM60 glass material of the material selection refractive index greatly 1.743 of prism, total reflection
Angle is 36 degree, and the angle of figure central column face prism is 45 degree.
The gain media crystal and the coaxial setting of aspherical parabolic reflective focusing mirror 8, and the gain media crystal
The back side be welded in cooling equipment；Hole is equipped among the aspherical parabolic reflective focusing mirror 8 to be used to export laser, it is described
Hole in be equipped with output v-shaped cavity coupling mirror 10, equipped with v-shaped cavity high reflective mirror 9, the V-type on the outside of the output v-shaped cavity coupling mirror 10
Chamber high reflective mirror 9 is coated with the high-reflecting film of output laser.As shown in figure 3, increasing on the right side of aspherical parabolic reflective focusing mirror 8
One v-shaped cavity high reflective mirror 9, the v-shaped cavity high reflective mirror 9 are coated with the high-reflecting film of output laser, which is provided with an output v-shaped cavity coupling
Mirror 10 is closed, the two constitutes v-shaped cavity thin-sheet laser.
90 degree of prisms 3 of the low clearance, 90 degree of prisms 4 of Gao Gaodu, the bottom surface of 180 degree turnover cylindrical prism 6, plane receive light
End mirror 7 and gain media crystal 5 are coplanar with, and are oppositely arranged with aspherical parabolic reflective focusing mirror 8.The 180 degree turns
The hot spot of the incident light and emergent light of rolling over cylindrical prism 6 is symmetrical on aspherical parabolic reflective focusing mirror 8, and described 180
The plane of incidence of degree turnover cylindrical prism 6 and the back side of aspherical parabolic reflective focusing mirror 8 are coplanar, and incident light is from described 180
The center incident of degree turnover cylindrical prism 6.90 degree of 90 degree of prisms 3 of the low clearance, Gao Gaodu prisms 4 are two pairs of cylindrical mirrors, two
To respectively at 90 degrees to each other, and there is difference in height.90 degree of 90 degree of prisms 3 of the low clearance, Gao Gaodu prisms 4 can be two pairs of difference
It links together, is also possible to 4 cylindrical prisms being separately formed.
As shown in Figure 1,1 is the diode pumping source of disc laser, the pump beam issued from diode is by non-
Spherical surface collimation lens 2 collimates pump light, passes through aspherical paraboloid by the pump light that aspheric collimation lens 2 collimate
Reflection focus lamp 8 converges to pump light on gain media crystal 5；The front surface of gain media crystal 5 need to plate pump light and
The anti-reflection film of laser is exported, rear surface needs to plate the high-reflecting film of pump light and output light；After being absorbed to pump light 2 times, pump light
It can then be reflected on aspherical parabolic reflective focusing mirror 8, then using aspheric collimation lens 2, be parallel to incident light simultaneously
At a plane, pump light impinges perpendicularly on 90 degree of prisms 3 of low clearance at center with the focal beam spot of gain media crystal 5；Through
After crossing two prisms of turning back at 90 degree, by aspherical parabolic reflective focusing mirror 8, then refocusing is increasing light beam again
On beneficial dielectric crystal 5, the light reflected is absorbed from 2 times on gain media crystal 5 in aspherical parabolic reflective focusing mirror 8
Collimation is lower to be incident on other two 90 degree of prism of turning back again, i.e., 90 degree of prisms 4 of high height in figure, 90 degree of prisms of Gao Gaodu
4 and 90 degree of prisms 3 of low clearance need to plate the anti-reflection film of pump light；Light through excessively high 90 degree of prisms 4 of height is again through aspheric
Face parabolic reflective focusing mirror 8 focuses, by the reflection of gain media crystal 5, so that the pumping of pump light can be realized repeatedly.
As shown in figure 5, aspherical parabolic reflective focusing mirror 8 proceeds to the 8th when gain media crystal 5 is by 7 focusing
After secondary collimation, pump light is incident on the front surface of 180 degree turnover cylindrical prism 6, by the light edge of 180 degree turnover cylindrical prism 6
It is returned with central optical axis at 180 ° of optical path, 180 degree turnover 6 surface of cylindrical prism is coated with the optical anti-reflective film of pump light；Pumping
The light of return is incident on aspherical parabolic reflective focusing mirror 8 again and focuses on gain media crystal 5, multiple in this way
Reflection focus, collimation, after refocusing, light beam vertically enters after aspherical parabolic reflective focusing mirror 8 collimation at the 18th time
Plane is mapped to receive on light end mirror 7.Plane receives 7 degree of anti-reflection films of light end mirror to get pump light outside cavity, prevents from returning to
Semiconductor pumping sources and damage pumping source.
As shown in figure 5, the pump light 18 times hot spot distribution maps Jing Guo aspherical focusing, wherein the 1st pump spot, gain
5 spot center of dielectric crystal and the 2nd pump spot are at a plane；In 3rd pump spot, 5 hot spot of gain media crystal
The heart and the 4th pump spot are at a plane；5th pump spot, 5 spot center of gain media crystal and the 6th pump light
Spot is at a plane；7th pump spot, 5 spot center of gain media crystal and the 8th pump spot are at a plane；9th
A pump spot, 5 spot center of gain media crystal and the 10th pump spot are at a plane；11st pump spot increases
Beneficial 5 spot center of dielectric crystal and the 12nd pump spot are at a plane；13rd pump spot, 5 light of gain media crystal
Spot center and the 14th pump spot are at a plane；15th pump spot, 5 spot center of gain media crystal and the 16th
Pump spot is at a plane；17th pump spot, 5 spot center of gain media crystal and the 18th pump spot are at one
Plane；And the interval of each hot spot is 20 degree.
Meanwhile the hot spot being distributed on 90 degree of prisms 3 of low clearance is 3,7,10,14 and 2,6,11,15；At 90 degree of height
The hot spot being distributed on prism 4 is 5,12,16 and 4,13,17；The hot spot being distributed on total reflection cylindrical prism is 8,9；Last light
Spot 18 is incident on plane and receives on light end mirror 7.The pumping sequence of entire incident pump light be then according to 1,2,3,4,5,6,7,8,9,
10,11,12,13,14,15,16,17,18 carry out.
Above description is only a specific implementation of the present invention, but the protection scope of the utility model is not limited to
In this, anyone skilled in the art within the technical scope disclosed by the utility model, can readily occur in variation
Or replacement, it should be covered within the scope of the utility model.Therefore, the protection scope of the utility model should be with the power
Subject to the protection scope that benefit requires.It is further to note that each specific skill as described in the above specific embodiments
Art feature can be combined in any appropriate way in the case of no contradiction, in order to avoid unnecessary repetition,
No further explanation will be given to various combinations of possible ways for the utility model.In addition, a variety of different embodiment party of the utility model
Any combination can also be carried out between formula, as long as without prejudice to the thought of the utility model, equally to should be considered as this practical new for it
Type disclosure of that.
Claims (6)
1. a kind of cylindrical prism is totally reflected more stroke pump absorption disc lasers, characterized by comprising: aspherical collimation is saturating
Mirror, described aspheric collimation lens one end are equipped with diode pumping source, and the other end is connected on installation plate, far from the peace
The one end for filling plate is equipped with aspherical parabolic reflective focusing mirror, the connection of the aspheric collimation lens and the installation plate
Place is equipped with pumping incident light hole, is equipped with gain media crystal in the middle part of the installation plate, the pumping incident light hole is set to increasing
The surface of beneficial dielectric crystal, the pumping incident light hole side are set there are two 90 degree of prisms of height, and the other side is close to be equipped with
Plane receives light end mirror, and the plane receives light end mirror side and sets that there are two 90 degree of prisms of low clearance, 90 degree of ribs of described two height
180 degree turnover cylindrical prism is equipped between mirror.
2. a kind of cylindrical prism according to claim 1 is totally reflected more stroke pump absorption disc lasers, feature exists
In: the gain media crystal and the aspherical coaxial setting of parabolic reflective focusing mirror, and the back side of the gain media crystal
It is welded in cooling equipment；Hole is equipped among the aspherical parabolic reflective focusing mirror for exporting laser, in the hole
Equipped with output v-shaped cavity coupling mirror, v-shaped cavity high reflective mirror, the v-shaped cavity high reflective mirror plating are equipped on the outside of the output v-shaped cavity coupling mirror
There is the high-reflecting film of output laser.
3. a kind of cylindrical prism according to claim 1 is totally reflected more stroke pump absorption disc lasers, feature exists
In: 90 degree of prisms of the low clearance, 90 degree of prisms of Gao Gaodu, the bottom surface of 180 degree turnover cylindrical prism, plane receive light end mirror and increasing
Beneficial dielectric crystal is coplanar with, and is oppositely arranged with aspherical parabolic reflective focusing mirror.
4. a kind of cylindrical prism according to claim 1 is totally reflected more stroke pump absorption disc lasers, feature exists
In: the incident light of the 180 degree turnover cylindrical prism and the hot spot of emergent light are symmetrical on aspherical parabolic reflective focusing mirror
Distribution, the plane of incidence of the 180 degree turnover cylindrical prism and the back side of aspherical parabolic reflective focusing mirror are coplanar, and incident light
From the center incident of 180 degree turnover cylindrical prism.
5. a kind of cylindrical prism according to claim 1 is totally reflected more stroke pump absorption disc lasers, feature exists
In: 90 degree of 90 degree of prisms of the low clearance, Gao Gaodu prisms are two pairs of cylindrical mirrors, two pairs it is each at 90 degrees to each other, and there is height
Difference.
6. a kind of cylindrical prism according to claim 5 is totally reflected more stroke pump absorption disc lasers, feature exists
In: 90 degree of 90 degree of prisms of the low clearance, Gao Gaodu prisms can be two pairs and are respectively connected together, and be also possible to an independent structure
At cylindrical prism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821838769.0U CN208904395U (en) | 2018-11-08 | 2018-11-08 | A kind of more stroke pump absorption disc lasers of cylindrical prism total reflection |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821838769.0U CN208904395U (en) | 2018-11-08 | 2018-11-08 | A kind of more stroke pump absorption disc lasers of cylindrical prism total reflection |
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| CN208904395U true CN208904395U (en) | 2019-05-24 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110336177A (en) * | 2019-07-23 | 2019-10-15 | 成都航天科工微电子系统研究院有限公司 | A kind of double disk gain crystal double bonds close the thin-sheet laser of YAG direct cooling |
| CN112448263A (en) * | 2019-08-28 | 2021-03-05 | 维林光电(苏州)有限公司 | Laser chip device and laser |
-
2018
- 2018-11-08 CN CN201821838769.0U patent/CN208904395U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110336177A (en) * | 2019-07-23 | 2019-10-15 | 成都航天科工微电子系统研究院有限公司 | A kind of double disk gain crystal double bonds close the thin-sheet laser of YAG direct cooling |
| CN112448263A (en) * | 2019-08-28 | 2021-03-05 | 维林光电(苏州)有限公司 | Laser chip device and laser |
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