CN208508230U - A kind of end face uniform pumping solid state laser - Google Patents
A kind of end face uniform pumping solid state laser Download PDFInfo
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- CN208508230U CN208508230U CN201821350538.5U CN201821350538U CN208508230U CN 208508230 U CN208508230 U CN 208508230U CN 201821350538 U CN201821350538 U CN 201821350538U CN 208508230 U CN208508230 U CN 208508230U
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Abstract
The utility model discloses a kind of end face uniform pumping solid state laser, first laser pumps source component and is emitted the first pump light, and the first pump light successively by thermal compensation negative lens, the second pumping source reflecting mirror transmission after incident the first focus point focused in laser crystal；Second laser pumps source component and is emitted the second pump light, and the second pump light incident second focus point focused in laser crystal after the reflection of the second pumping source reflecting mirror；Third laser pump (ing) source component is emitted third pump light, and third pump light incident tertiary focusing point focused in laser crystal after the reflection of third pumping source reflecting mirror；4th laser pump (ing) source component is emitted the 4th pump light, and successively incidence focuses on the 4th focus point in laser crystal to the 4th pump light after the reflection of the 4th pumping source reflecting mirror, the transmission of third reflection of pump power mirror.The utility model improves the output power of laser, reduces the pulse width of laser while solving to reduce solid state laser volume.
Description
Technical field
The utility model relates to field of laser device technology more particularly to a kind of end face uniform pumping solid state lasers.
Background technique
Pumped at end face of semiconductor solid state laser structure is simple, compact, good beam quality, it is stable, be easy to collect
At, therefore it is widely used in the laser processings such as laser marking, laser scribing, accurate resistance trimming, laser cleaning and body laser inner carving
Industry.
With industrial application to laser processing effect and processing efficiency require continuous improvement, market to laser it is also proposed that
More requirements reduce solid state laser volume, reduce output laser pulse width, and are using the air-cooled type of cooling
Common application requirement.To reduce solid state laser volume, the chamber for first having to shorten laser resonator is long, in equal conditions
Under, chamber length is shorter, and repetition rate is higher, pulsewidth is narrower.And for shorter laser resonant cavity length, oscillation mode in resonant cavity
Gaussian beam spot size is smaller.In order to match with the lesser Gaussian beam of spot size, focused spot size will receive one
Fixed limitation, generally for the cavity length of 160mm or so, focal beam spot diameter is generally less than 400 μm.Due to laser crystal
It is larger to the absorption coefficient of 808nm semiconductor laser, in addition pump spot diameter is smaller, lead to the optical power density of unit volume
Huge, corresponding thermal lensing effect is violent, and laser output power is extremely restricted, cannot achieve laser small size,
Narrow spaces, high power steady running.Very big semiconductor laser also can be absorbed in the especially very small laser crystal of volume
Pump power.The pump power that laser crystal absorbs can be extracted by laser resonator, it is generally the case that resonant cavity
Extraction efficiency 50% or so.That is, having the semiconductor laser pumping power of nearly half can be deposited in a manner of heat
It is in laser crystal.As previously mentioned, the laser crystal volume for absorbing half semiconductor laser pumping power is very small, and swash
Luminescent crystal internal heat is mainly taken away by heat exchange pattern.It is well known that heat transfer surface product is bigger, the capacity of heat transmission is stronger.
In contrast, laser crystal surface area is very small, therefore laser crystal internal heat can not effectively be dissipated by way of heat transfer
It removes, laser crystal internal heat is gradually accumulated, and causes laser crystal to burst, laser damage.
Utility model content
The purpose of the utility model is to provide a kind of end face uniform pumping solid state laser, solve to reduce Solid State Laser body
The output power of laser is improved while product, reduces the pulse width of laser.
To achieve the above object, using following technical scheme:
A kind of end face uniform pumping solid state laser, including first laser pumping source component, thermal compensation negative lens, second swash
Optical pumping source component, the second pumping source reflecting mirror, laser crystal, third laser pump (ing) source component, third pumping source reflecting mirror,
Four laser pump (ing) source components, the 4th pumping source reflecting mirror, Q-switch, laser output mirror；The thermal compensation negative lens and laser export
Mirror constitutes laser resonator, and laser resonance is intracavitary to be sequentially distributed the second pump from thermal compensation negative lens side to laser output mirror side
Pu source reflecting mirror, laser crystal, third pumping source reflecting mirror, the 4th pumping source reflecting mirror, Q-switch；The first laser pumping
Source component is for being emitted the first pump light, and the first pump light successively passes through thermal compensation negative lens, the second pumping source reflecting mirror
Incident the first focus point focused in laser crystal after transmission；The second laser pumping source component is for being emitted the second pumping
Light, and the second pump light incident second focus point focused in laser crystal after the reflection of the second pumping source reflecting mirror；
The third laser pump (ing) source component is for being emitted third pump light, and third pump light is by the anti-of third pumping source reflecting mirror
Penetrate the tertiary focusing point that rear incidence focuses in laser crystal；The 4th laser pump (ing) source component is for being emitted the 4th pumping
Light, and the successively incident focusing after the reflection of the 4th pumping source reflecting mirror, the transmission of third reflection of pump power mirror of the 4th pump light
The 4th focus point in laser crystal.
Preferably, the first pumping optical transmission direction is overlapped with the length direction of laser resonator；Second pumping
The length direction of source reflecting mirror and laser resonator is arranged in Brewster's angle, so that the second pumping source reflecting mirror is to laser resonance
Intracavitary oscillation light and the first pump light have minimum reflectivity；The length side of third the pumping source reflecting mirror and laser resonator
To in Brewster's angle arrange so that third pumping source reflecting mirror have to the intracavitary oscillation light of laser resonance with the 4th pump light it is minimum
Reflectivity；The length direction of the 4th pumping source reflecting mirror and laser resonator is arranged in Brewster's angle, so that the 4th
Pumping source reflecting mirror has minimum reflectivity to the intracavitary oscillation light of laser resonance；The normal direction of the third pumping source reflecting mirror
It is vertical with the normal direction of the 4th pumping source reflecting mirror.
Preferably, the transmission direction of first pump light, the transmission direction of the second pump light, the second pumping source reflecting mirror
Normal direction, the transmission direction of third pump light, the normal direction of third pumping source reflecting mirror be located at the first plane, the 4th pump
The transmission direction of Pu light, the normal direction of the 4th pumping source reflecting mirror are located at the second plane, and the first plane is vertical with the second plane.
Preferably, first laser pumping source component, second laser pumping source component, third laser pump (ing) source component,
4th laser pump (ing) source component includes diode-end-pumped source, collimating mirror, focus lamp.
Preferably, the collimating mirror uses the first plano-convex lens, first laser pumps source component, second laser pumping source group
Part, third laser pump (ing) source component, the 4th laser pump (ing) source component diode-end-pumped source luminous point correspond exist
The focal position of corresponding collimating mirror.
Preferably, the focus lamp uses the second plano-convex lens, first laser pumps source component, second laser pumping source group
Part, third laser pump (ing) source component, the 4th laser pump (ing) source component front-rear position of the focus lamp on pump light road make four
The distribution straggly of focus position of the road pump light in laser crystal.
Preferably, first focus point, the second focus point, tertiary focusing point, the 4th focus position are along laser generation
Direction equidistant interval is distributed in laser crystal.
Preferably, the thermal compensation negative lens uses third plano-convex lens, plane side is close to first laser pumping source
Component；The thermal compensation negative lens double-sided coating, plane plate pump light anti-reflection film, and the high hair film of oscillation light is plated on convex surface and pump light increases
Permeable membrane.
Preferably, the second pumping source reflecting mirror, third pumping source reflecting mirror, the 4th pumping source reflecting mirror use first
Planar lens, reflecting surface plated film, another side polishing；First planar lens be set as the transmission of laser resonance intracavitary oscillation light,
Horizontal polarization pumps light transmission, vertical polarized pump light reflection.
Preferably, the diode-end-pumped source uses single-tube semiconductor laser；The laser output mirror uses
Infrared laser outgoing mirror；The laser output mirror is the second planar lens, is reflected close to Q-switch one side plating oscillation light part
Film, reflectivity are greater than 70%.
Using the above scheme, the beneficial effects of the utility model are:
Uniform pumping is carried out to laser crystal using four road diode-end-pumped sources, greatly reduces laser crystal
Thermal lensing effect.Simultaneously because single diode-end-pumped source output power is lower, pump light can be focused on thinner
Size increase the gain of laser to improve the pumping model volume inside laser crystal, be conducive to compress laser
Pulse width, realize small size Solid State Laser high repetition frequency, narrow pulse width, high-power output.
Detailed description of the invention
Fig. 1 is the perspective view of the utility model；
Fig. 2 is the perspective view that the utility model saves Q-switch；
Fig. 3 is the utility model using the first plane as the structural schematic diagram of the plane of reference；
Fig. 4 is the utility model using the second plane as the structural schematic diagram of the plane of reference；
Wherein, description of drawing identification:
1-first laser pumping source component, 2-thermal compensation negative lenses,
3-second lasers pumping source component, the 4-the second pumping source reflecting mirror,
5-laser crystals, 6-third laser pump (ing) source components,
7-third pumping source reflecting mirrors, the 8-the four laser pump (ing) source component,
9-the four pumping source reflecting mirror, 10-Q-switch,
11-laser output mirrors, 101/301/601/801-diode-end-pumped source,
102/302/602/802-collimating mirror, 103/203/603/803-focus lamp.
Specific embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in detail.
Shown in 4, the utility model provides a kind of end face uniform pumping solid state laser, including first laser
Pump source component 1, thermal compensation negative lens 2, second laser pumping source component 3, the second pumping source reflecting mirror 4, laser crystal 5, the
Three laser pump (ing) source components 6, third pumping source reflecting mirror 7, the 4th laser pump (ing) source component 8, the 4th pumping source reflecting mirror 9, Q are opened
Close 10, laser output mirror 11；The thermal compensation negative lens 2 constitutes laser resonator with laser output mirror 11, and laser resonance is intracavitary
The second pumping source reflecting mirror 4, laser crystal 5, third are sequentially distributed from 2 side of thermal compensation negative lens to 11 side of laser output mirror
Pumping source reflecting mirror 7, the 4th pumping source reflecting mirror 9, Q-switch 10；The first laser pumping source component 1 is for being emitted the first pump
Pu light, and the first pump light successively by thermal compensation negative lens 2, the second pumping source reflecting mirror 4 transmission after incidence focus on it is sharp
The first focus point in luminescent crystal 5；The second laser pumping source component 3 is for being emitted the second pump light, and the second pump light
Incident the second focus point focused in laser crystal 5 after the reflection of the second pumping source reflecting mirror 4；The third laser pump
Pu source component 6 is for being emitted third pump light, and the incident focusing after the reflection of third pumping source reflecting mirror 7 of third pump light
To the tertiary focusing point in laser crystal 5；The 4th laser pump (ing) source component 8 is for being emitted the 4th pump light, and the 4th pump
Successively incidence focuses on laser crystal to Pu light after the reflection of the 4th pumping source reflecting mirror 9, the transmission of third reflection of pump power mirror 7
The 4th focus point in 5.
Wherein, the first pumping optical transmission direction is overlapped with the length direction of laser resonator；Second pumping source
The length direction of reflecting mirror 4 and laser resonator arranges that the second pump light is anti-through the second pumping source reflecting mirror 4 in Brewster's angle
Rear optical path is penetrated to be overlapped with the length direction of laser resonator；The length side of the third pumping source reflecting mirror 7 and laser resonator
It is arranged in Brewster's angle, the length of third pump light optical path and laser resonator after the reflection of third pumping source reflecting mirror 7
Direction is overlapped；The length direction of the 4th pumping source reflecting mirror 9 and laser resonator arranges that the 4th pumps in Brewster's angle
Light optical path after the reflection of the 4th pumping source reflecting mirror 9 is overlapped with the length direction of laser resonator；The third pumping source reflection
The normal direction of mirror 7 is vertical with the normal direction of the 4th pumping source reflecting mirror 9.The transmission direction of first pump light, second
The transmission direction of pump light, the normal direction of the second pumping source reflecting mirror 4, the transmission direction of third pump light, third pumping source
The normal direction of reflecting mirror 7 is located at the first plane, the normal side of the transmission direction of the 4th pump light, the 4th pumping source reflecting mirror 9
To the second plane is located at, the first plane is vertical with the second plane.
The first laser pumping source component 1, second laser pump source component 3, third laser pump (ing) source component the 6, the 4th
Laser pump (ing) source component 8 include diode-end-pumped source 101/301/601/801, collimating mirror 102/302/602/802,
Focus lamp 103/203/603/803.The collimating mirror 102/302/602/802 uses the first plano-convex lens, first laser pumping
Source component 1, second laser pumping source component 3, third laser pump (ing) source component 6, the semiconductor of the 4th laser pump (ing) source component 8 are sharp
101/301/601/801 luminous point of light device pumping source is corresponded in the focal position of corresponding collimating mirror 102/302/602/802.
The focus lamp 103/203/603/803 uses the second plano-convex lens, and first laser pumps source component 1, second laser pumping source
Component 3, third laser pump (ing) source component 6, the 4th laser pump (ing) source component 8 focus lamp 103/203/603/803 in pump light
The front-rear position of road makes focus position straggly distribution of the four road pump lights in laser crystal 5.First focus point,
Second focus point, tertiary focusing point, the 4th focus position are distributed in laser crystal 5 along laser generation direction equidistant interval.
The thermal compensation negative lens 2 uses third plano-convex lens, and plane side pumps source component 1 close to first laser；
2 double-sided coating of thermal compensation negative lens, plane plate pump light anti-reflection film, and the high hair film of oscillation light is plated on convex surface and pump light is anti-reflection
Film.The second pumping source reflecting mirror 4, third pumping source reflecting mirror 7, the 4th pumping source reflecting mirror 9 use the first planar lens,
Its reflecting surface plated film, another side polishing；First planar lens is set as the intracavitary oscillation light transmission of laser resonance, horizontal polarization pump
Pu light transmission, vertical polarized pump light reflection.It is partly led using single tube in the diode-end-pumped source 101/301/601/801
Body laser；The laser output mirror 11 uses infrared laser outgoing mirror；The laser output mirror 11 is the second planar lens,
Close to Q-switch one side plating oscillation light part reflectance coating, reflectivity is greater than 70%.
Utility model works principle:
The utility model improves the output power of laser, reduces laser while solving to reduce solid state laser volume
Pulse width；Under equal conditions, chamber length is shorter, and repetition rate is higher, pulsewidth is narrower.In the premise for shortening cavity length
Under, simple to increase diode-end-pumped optical power, it is excessive centainly to will lead to optical power density inside laser crystal, to draw
Laser heat imbalance even laser crystal is played to burst.
First laser pumps source component 1, the 4th laser pump (ing) source component 8 uses so that semiconductor laser exports light polarization
Direction is that (it is first flat that first laser, which pumps the reference planes of 1 polarization direction of source component, for the mounting means of vertical direction polarised light
The reference planes in face, the 4th pumping 8 polarization direction of source component are the second plane)；Second laser pumps source component 3, third laser
Pumping source component 6 uses so that semiconductor laser exports light polarization direction as the mounting means (second of horizontal direction polarised light
Laser pump (ing) source component 3,6 polarization direction of third laser pump (ing) source component reference planes be the first plane).First pump light
Transmission direction, the transmission direction of the second pump light, the normal direction of the second pumping source reflecting mirror 4, third pump light transmission side
It is located at the first plane to the normal direction of, third pumping source reflecting mirror 7, the transmission direction of the 4th pump light, the 4th pumping source are anti-
The normal direction for penetrating mirror 9 is located at the second plane, and the first plane is vertical with the second plane.Because the first plane is vertical with the second plane,
It is vertical polarised light when 4th pump light is using the second plane as the plane of reference, is horizontal polarization when using the first plane as the plane of reference
Light.
The focusing point of first pump light, the second pump light, third pump light, the 4th pump light inside laser crystal 5
It sets, is spaced apart along laser generation direction.Using end face uniform pumping mode, by number road diode-end-pumped light in laser
5 inner laser orientation of oscillation uniform pumping of crystal, due to the power limited per pump light all the way, and per pump light all the way in laser
Focal position inside crystal 5 is different, and the diode-end-pumped optical power density inside laser crystal 5 substantially reduces, and has
Inhibit Thermal Lens Effect with Laser Excitation to effect.At the same time, multi-channel semiconductor laser uniform pumping laser crystal 5, greatly increases
Laser pumping model volume, is advantageously implemented narrow spaces, the high-power output of laser.Diode-end-pumped source 101/
301/601/801 uses single-tube semiconductor laser (for vertical polarization state when semiconductor laser is placed naturally, if necessary
The horizontal polarization output for realizing pump light needs the modes of emplacement of semiconductor laser to rotate 90 °), laser output wavelength
For 808 ± 3nm or 878.6 ± 3nm, output power is 12 ± 3W.Existed by adjusting 4 focus lamps 103/203/603/803
The front-rear position of pump light road, so that focus position straggly arrangement of the 4 road pump lights in laser crystal 5.Second pumping
Source reflecting mirror 4, third pumping source reflecting mirror 7, the first planar lens that the 4th pumping source reflecting mirror 9 is single-ended plated film, coated surface
Filming parameter are as follows: HR@pump wavelength, 95%@S light of R >, incident angle: 55.4 ± 6 °；0.1%@P of AR@1064nm, R <
Light, incident angle: 55.4 degree (Brewster angle)；AR@pump wavelength, 1%@P light of R <, incident angle: 55.4 ± 6 °, another side
Only polish.Second pumping source reflecting mirror 4, third pumping source reflecting mirror 7 reflecting surface be one side close to laser crystal 5, the
The reflecting surface of four pumping source reflecting mirrors 9 is the one side close to third pumping source reflecting mirror 7.
In the present embodiment, used single-tube semiconductor laser launch wavelength is 808nm, using fast axle compress mode
(single-tube semiconductor laser luminous point is rectangle, and the angle of divergence of the long axis direction light of rectangle is small, the short-axis direction angle of divergence of rectangle
Greatly；The angle of divergence it is big be fast axle, the angle of divergence it is small be slow axis, the laser of approximating square, needs to compress fast axle in order to obtain) it is straight
Connect output, output power 10W, 200 μm of luminous point width, polarization direction TE.The effect of thermal compensation negative lens 2 is vibration first
Light reflection mirror is swung, the thermal lensing effect of laser crystal 5 is followed by compensated；The radius of curvature of thermal compensation negative lens 2 is big, collimating mirror
102/302/602/802 and focus lamp 103/203/603/803 radius of curvature very little.Collimating mirror 102/302/602/802 is adopted
Can be chosen according to the actual situation with the focal length of the first plano-convex lens, the first plano-convex lens, general value between 10mm~50mm,
4 collimating mirrors 102/302/602/802 are used uniformly 25mm in the present embodiment；Diode-end-pumped source 101/301/601/
After the 801 collimated mirrors 102/302/602/802 of pump light issued collimate, parallel radiation to corresponding focus lamp 103/203/
On 603/803, the focal length of focus lamp 103/203/603/803 can be chosen according to the actual situation, mainly consider following three
Point: 1) laser generation mould (oscillation light is in the distribution in laser crystal 5) and pumping mould (distribution of the pump light in laser crystal 5)
Between matching；2) thermal lensing effect of laser crystal 5；3) the pulse width demand of laser.General value is in 25mm~100mm
Between, 4 focus lamps 103/203/603/803 are used uniformly 50mm in the present embodiment.4 semiconductor lasers in the present embodiment
Pumping source 101/301/601/801 issues light after 4 focus lamps 103/203/603/803 focus, in 5 cohesion of laser crystal
Coke, 4 focus points are evenly arranged, and laser crystal 5 is uniformly divided into 5 equal portions.Laser crystal 5 uses Nd:YVO4 in the present embodiment
Crystal, laser crystal 5 is having a size of 3mm*3mm*15mm.
Innovative optimization design is carried out by filming parameter, so that the diode-end-pumped light of horizontal polarization portion big absolutely
Divide and is transmitted from pumping source reflecting mirror 4/7；And the diode-end-pumped light overwhelming majority polarized vertically is reflected by pumping source
Mirror 4/7/9 is reflected；To realize that 4 road pump lights are pumped onto laser crystal 5 simultaneously；So that the uniform pumping of laser crystal 5
It is possibly realized.In addition, semiconductor laser pumping source focus lamp 103/203/603/803 is moved along pumping optical path, so that 4 half
Focal position of the conductor laser pumping source in laser crystal 5 arrangement straggly, to realize the uniform pump of laser crystal 5
Pu.
The above is only the preferred embodiments of the present utility model only, is not intended to limit the utility model, all practical at this
Made any modifications, equivalent replacements, and improvements etc., should be included in the guarantor of the utility model within novel spirit and principle
Within the scope of shield.
Claims (10)
1. a kind of end face uniform pumping solid state laser, which is characterized in that negative saturating including first laser pumping source component, thermal compensation
Mirror, second laser pump source component, the second pumping source reflecting mirror, laser crystal, third laser pump (ing) source component, third pumping source
Reflecting mirror, the 4th laser pump (ing) source component, the 4th pumping source reflecting mirror, Q-switch, laser output mirror；The thermal compensation negative lens
With laser output mirror constitute laser resonator, laser resonance it is intracavitary from thermal compensation negative lens side to laser output mirror side successively
It is distributed the second pumping source reflecting mirror, laser crystal, third pumping source reflecting mirror, the 4th pumping source reflecting mirror, Q-switch；Described
One laser pump (ing) source component is for being emitted the first pump light, and the first pump light successively passes through thermal compensation negative lens, the second pumping
Incident the first focus point focused in laser crystal after the transmission of source reflecting mirror；The second laser pumping source component is for going out
Penetrate the second pump light, and the second pump light incident the focused in laser crystal after the reflection of the second pumping source reflecting mirror
Two focus points；The third laser pump (ing) source component is for being emitted third pump light, and third pump light passes through third pumping source
The incident tertiary focusing point focused in laser crystal after the reflection of reflecting mirror；The 4th laser pump (ing) source component is for being emitted
4th pump light, and the 4th pump light is successively after the reflection of the 4th pumping source reflecting mirror, the transmission of third reflection of pump power mirror
Incidence focuses on the 4th focus point in laser crystal.
2. uniform pumping solid state laser in end face according to claim 1, which is characterized in that the first pumping optical transport
Direction is overlapped with the length direction of laser resonator；The length direction of the second pumping source reflecting mirror and laser resonator is in cloth
This special angle arrangement of scholar, so that the second pumping source reflecting mirror has minimum reflection to the intracavitary oscillation light of laser resonance and the first pump light
Rate；The length direction of the third pumping source reflecting mirror and laser resonator is arranged in Brewster's angle, so that third pumping source
Reflecting mirror has minimum reflectivity to the intracavitary oscillation light of laser resonance and the 4th pump light；The 4th pumping source reflecting mirror and swash
The length direction of optical cavity is arranged in Brewster's angle, so that the 4th pumping source reflecting mirror has the intracavitary oscillation light of laser resonance
Minimum reflectivity；The normal direction of the third pumping source reflecting mirror is vertical with the normal direction of the 4th pumping source reflecting mirror.
3. uniform pumping solid state laser in end face according to claim 2, which is characterized in that the biography of first pump light
Defeated direction, the transmission direction of the second pump light, the normal direction of the second pumping source reflecting mirror, the transmission direction of third pump light,
The normal direction of third pumping source reflecting mirror is located at the first plane, the transmission direction of the 4th pump light, the 4th pumping source reflecting mirror
Normal direction be located at the second plane, the first plane is vertical with the second plane.
4. uniform pumping solid state laser in end face according to claim 1, which is characterized in that the first laser pumping source
Component, second laser pumping source component, third laser pump (ing) source component, the 4th laser pump (ing) source component include semiconductor laser
Device pumping source, collimating mirror, focus lamp.
5. uniform pumping solid state laser in end face according to claim 4, which is characterized in that the collimating mirror uses first
Plano-convex lens, first laser pumps source component, second laser pumps source component, third laser pump (ing) source component, the 4th laser pump
The diode-end-pumped source luminous point of Pu source component is corresponded in the focal position of corresponding collimating mirror.
6. uniform pumping solid state laser in end face according to claim 5, which is characterized in that the focus lamp uses second
Plano-convex lens, first laser pumps source component, second laser pumps source component, third laser pump (ing) source component, the 4th laser pump
Front-rear position of the focus lamp of Pu source component on pump light road makes focus position of the four road pump lights in laser crystal
Distribution straggly.
7. uniform pumping solid state laser in end face according to claim 6, which is characterized in that first focus point,
Two focus points, tertiary focusing point, the 4th focus position are distributed in laser crystal along laser generation direction equidistant interval.
8. uniform pumping solid state laser in end face according to claim 1, which is characterized in that the thermal compensation negative lens is adopted
With third plano-convex lens, plane side pumps source component close to first laser；The thermal compensation negative lens double-sided coating, plane
Pump light anti-reflection film is plated, the high hair film of oscillation light and pump light anti-reflection film are plated in convex surface.
9. uniform pumping solid state laser in end face according to claim 1, which is characterized in that the second pumping source reflection
Mirror, third pumping source reflecting mirror, the 4th pumping source reflecting mirror use the first planar lens, reflecting surface plated film, another side polishing；
First planar lens is set as the intracavitary oscillation light transmission of laser resonance, horizontal polarization pumping light transmission, vertical polarized pump light
Reflection.
10. uniform pumping solid state laser in end face according to claim 4, which is characterized in that the semiconductor laser
Pumping source uses single-tube semiconductor laser；The laser output mirror uses infrared laser outgoing mirror；The laser output mirror is
Second planar lens, close to Q-switch one side plating oscillation light part reflectance coating, reflectivity is greater than 70%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201821350538.5U CN208508230U (en) | 2018-08-21 | 2018-08-21 | A kind of end face uniform pumping solid state laser |
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| CN201821350538.5U CN208508230U (en) | 2018-08-21 | 2018-08-21 | A kind of end face uniform pumping solid state laser |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108899753A (en) * | 2018-08-21 | 2018-11-27 | 深圳市格镭激光科技有限公司 | A kind of end face uniform pumping solid state laser |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108899753A (en) * | 2018-08-21 | 2018-11-27 | 深圳市格镭激光科技有限公司 | A kind of end face uniform pumping solid state laser |
| CN108899753B (en) * | 2018-08-21 | 2024-04-02 | 深圳市格镭激光科技有限公司 | End-face uniform pumping solid laser |
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