CN209071807U - Laser gain component and laser - Google Patents
Laser gain component and laser Download PDFInfo
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- CN209071807U CN209071807U CN201822079651.0U CN201822079651U CN209071807U CN 209071807 U CN209071807 U CN 209071807U CN 201822079651 U CN201822079651 U CN 201822079651U CN 209071807 U CN209071807 U CN 209071807U
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- gain
- laser
- end cap
- straight tube
- tube
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Abstract
This application discloses a kind of laser gain component and lasers, the gain tube of laser beam energy is improved including pumping source and under the action of the pumping source, there is first fluid channel in the gain tube, gain tube includes gain straight tube and two tubulose end caps for being respectively arranged at gain straight tube both ends, the gain straight tube and two tubulose end caps are run through in first fluid channel, and the tubulose end cap is in boss-shaped, the first seal pipe is enclosed on the outside of the gain straight tube, it is separated from each other between first seal pipe and the gain straight tube to form second fluid channel；The first fluid channel and the second fluid channel are used for through cooling medium, so as to reach unanimity on the outside of the gain straight tube with the temperature on the inside of the gain straight tube.By above-mentioned setting, laser beam quality and energy can be effectively improved, and can greatly improve the energy storage capacity of gain tube when carrying out transmission laser using above-mentioned laser gain component and laser.
Description
Technical field
This application involves laser technology fields, in particular to a kind of laser gain component and laser.
Background technique
Superpower laser has in fields such as national defence, industry, scientific researches to be widely applied.Laser gain component is high average function
The core cell of rate solid state laser, the laser gain component haveing excellent performance are the guarantees for realizing efficient, high laser beam quality.
In the prior art, common laser gain component includes the lath that gain media is constituted, in this gain component,
Laser is transmitted in lath with zig-zag type optical path.Inventor it has been investigated that, since lath heat is uneven, and on the side of lath
At edge, due to stave edges temperature with it is inconsistent at non-edge, be just easier to generate edge effect, that is, on lath side
At edge, laser beam wavefront with it is inconsistent at center, this will affect the laser beam quality of final output.
Utility model content
In view of this, the purpose of this utility model is to provide a kind of laser gain component and lasers, to be effectively relieved
Above-mentioned technical problem.
A kind of laser gain component provided by the utility model, including pumping source and mentioned under the action of the pumping source
The gain tube of high laser beam energy, the gain tube is interior to have first fluid channel；
The gain tube includes gain straight tube and two tubulose end caps for being respectively arranged at gain straight tube both ends, and first
Fluid channel runs through the gain straight tube and two tubulose end caps, and the tubulose end cap is in boss-shaped；
The first seal pipe, phase between first seal pipe and the gain straight tube are enclosed on the outside of the gain straight tube
Mutually separation is to form second fluid channel；The first fluid channel and the second fluid channel are used for through cooling medium,
So as to reach unanimity on the outside of the gain straight tube with the temperature on the inside of the gain straight tube.
Optionally, in above-mentioned laser gain component, the tubulose end cap includes isometrical section of end cap and reducer end cap, institute
It states reducer end cap and is connect by the isometrical section of end cap with the gain straight tube, and the outer diameter of the isometrical section of end cap is greater than institute
The outer diameter of gain straight tube is stated, the diameter of the reducer end cap is by close described isometrical section of end cap one end to far from described isometrical section
End cap one end is gradually reduced.
Optionally, in above-mentioned laser gain component, the reducer end cap is close to one end of the isometrical section of end cap
Outer diameter and the outer diameter of the isometrical section of end cap match.
Optionally, in above-mentioned laser gain component, the second sealing is provided in the first fluid channel of the gain tube
Pipe, the both ends of second seal pipe pass through the inner wall that sealing ring is set to two tubulose end caps respectively, and described second is close
The both ends of tube sealing are respectively arranged with the through-hole being connected to the first fluid channel.
Optionally, in above-mentioned laser gain component, the gain tube, first seal pipe, second seal pipe
And two tubulose end cap coaxial arrangements.
Optionally, in above-mentioned laser gain component, the pumping source is arranged in a tubular form and is wrapped in first sealing
The outside of pipe, and the pumping source is separated from each other with first seal pipe.
Optionally, in above-mentioned laser gain component, the both ends of first seal pipe are set to by sealing ring respectively
The outer wall of two tubulose end caps, and the both ends of first seal pipe are respectively arranged with and are connected to the second fluid channel
Through-hole.
Optionally, in above-mentioned laser gain component, the surface of the tubulose end cap is provided with reflective coating.
Optionally, in above-mentioned laser gain component, the refraction of the refractive index of the tubulose end cap and the gain straight tube
Rate is consistent.
The utility model also provides a kind of laser, including swashing described in laser emitter and above-mentioned laser gain component
The light-emitting surface of optical transmitting set is oppositely arranged with a tubulose end cap in the laser gain component.
A kind of laser gain component and laser provided by the present application include gain straight tube and two tubular tips by setting
The gain tube of cap is to improve beam area, and boundless edge effect.Which not only improves laser beam energies, and make along gain tube
The laser beam quality of transmission greatly improves.Further, since the gain tube has first fluid channel, the gain straight tube
Outside is enclosed with the first seal pipe to constitute second fluid channel, so that laser gain component gain tube during the work time is interior
Side and temperature outside reach unanimity, so that the energy storage capacity of gain tube greatly improved.
Detailed description of the invention
Technical solution in ord to more clearly illustrate embodiments of the present application, below will be to needed in the embodiment attached
Figure is briefly described, it should be understood that the following drawings illustrates only some embodiments of the application, therefore is not construed as pair
The restriction of range for those of ordinary skill in the art without creative efforts, can also be according to this
A little attached drawings obtain other relevant attached drawings.
Fig. 1 is the structural schematic diagram of the first laser gain component provided by the embodiments of the present application；
Fig. 2 is the structural schematic diagram of the first gain tube provided by the embodiments of the present application；
Fig. 3 is the radial section schematic diagram of the first laser gain component provided by the embodiments of the present application；
Fig. 4 is the laser propagation schematic diagram in laser gain component provided by the embodiments of the present application.
Icon: 100- laser gain component；110- gain tube；112- gain straight tube；114- tubulose end cap；114a- is isometrical
Section end cap；114b- reducer end cap；120- pumping source；The first seal pipe of 130-；The second seal pipe of 140-.
Specific embodiment
To keep the purposes, technical schemes and advantages of the embodiment of the present application clearer, below in conjunction with the embodiment of the present application
In attached drawing, the technical scheme in the embodiment of the application is clearly and completely described, it is clear that described embodiment is
Some embodiments of the present application, instead of all the embodiments.The application being usually described and illustrated herein in the accompanying drawings is implemented
The component of example can be arranged and be designed with a variety of different configurations.
Therefore, the detailed description of the embodiments herein provided in the accompanying drawings is not intended to limit below claimed
Scope of the present application, but be merely representative of the selected embodiment of the application.Based on the embodiment in the application, this field is common
Technical staff's every other embodiment obtained without creative efforts belongs to the model of the application protection
It encloses.
It should also be noted that similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined in a attached drawing, does not then need that it is further defined and explained in subsequent attached drawing.
In the description of the present application, 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" is to be based on the orientation or positional relationship shown in the drawings, or be somebody's turn to do
Utility model product using when the orientation or positional relationship usually put, be merely for convenience of description the application and simplify description,
Rather than the device or element of indication or suggestion meaning must have a particular orientation, be constructed and operated in a specific orientation, because
This should not be understood as the limitation to the application.In addition, term " second ", " first ", " second " etc. are only used for distinguishing description, without
It can be interpreted as indication or suggestion relative importance.
In addition, the terms such as term "horizontal", "vertical", " pendency " are not offered as requiring component abswolute level or pendency, and
It is that can be slightly tilted.It is not to indicate the structure if "horizontal" only refers to that its direction is more horizontal with respect to for "vertical"
It has to fully horizontally, but can be slightly tilted.
In the description of the present application, it is also necessary to which explanation is unless specifically defined or limited otherwise, term " setting ",
" installation ", " connected ", " connection " shall be understood in a broad sense, for example, it may be fixedly connected, may be a detachable connection or one
Connect to body；It can be mechanical connection, be also possible to be electrically connected；It can be directly connected, it can also be indirect by intermediary
It is connected, can be the connection inside two elements.For the ordinary skill in the art, on being understood with concrete condition
State the concrete meaning of term in this application.
Fig. 1 is please referred to, the application implements a kind of laser gain component 100 provided, and the laser gain component 100 includes
Gain tube 110 and pumping source 120, the gain tube 110 under the action of pumping source 120 for improving the energy of laser beam.
Specifically, in the present embodiment, incorporated by reference to Fig. 2 and Fig. 3, there is first fluid channel in the gain tube 110,
The gain tube 110 includes gain straight tube 112 and two tubulose end caps 114 for being respectively arranged at 112 both ends of gain straight tube,
The gain straight tube 112 and two tubulose end caps 114 are run through in first fluid channel, and the tubulose end cap 114 is in boss
Shape.
The outside of the gain straight tube 112 is enclosed with the first seal pipe 130, first seal pipe 130 and the gain
It is separated from each other between straight tube 112 to form second fluid channel；The first fluid channel and the second fluid channel are used for
By cooling medium, so that 112 outside of the gain straight tube and the temperature of 112 inside of gain straight tube reach unanimity.
It is appreciated that in the present embodiment, the gain straight tube 112 is circular pipe shape, the thickness of the gain straight tube 112
Degree and the diameter in the first fluid channel are not specifically limited herein, and are configured according to practical application request.
By above-mentioned setting, with when the laser gain component 100 transmits laser, laser passes through a tubulose end cap 114
Into after the gain straight tube 112, transmitted in the gain straight tube 112 with zigzag optical path, and in the pumping source
It is exported after improving the energy of laser beam under the action of 120 by another tubulose end cap 114.And then the close of fluid is effectively ensured
The high packing ratio of envelope property and laser.In addition, compared with lath-shaped gain component, the application is by " unsymmetric structure " zigzag lath
Be wound to be formed one " rotational symmetry structure " gain straight tube 112 shape and structure, it is wide which eliminates lath
The edge effect for spending direction, makes laser beam become the annular of " rotational symmetry structure " by the zig-zag type laser beam of " asymmetric "
Laser beam, and then transmit laser beam in the meridian plane of gain straight tube 112 with zigzag optical path, it is even to have slided gain
The thermotropic wavefront distortion of 112 thickness direction of straight tube, ensure that laser beam quality.
Specifically, the duct thickness of the gain straight tube 112 in the laser gain component 100 of the application and the plate of same thickness
Item is compared, and the clear field of lath is represented by S1=H × W, wherein the thickness of H expression lath, the width of W expression lath, one
As W/H > 10.Since the restricted width of lath is in the size of gain medium material itself, with the Nd:YAG crystal (yttroalumite of neodymium-doped
Garnet crystal) for, it will form 3 side hearts during YAG (yttrium-aluminium-garnet) crystal growth, YAG crystal be divided into three
A region, lath can only carry out selection from single region, and the width that maximum can take is the radius R (W=R) of YAG crystal, plate
The clear field S of item1=H × R, therefore, clear field is relatively small, and uses in the laser gain component 100 of the application
When gain straight tube 112 carries out transmission laser, the clear field of gain straight tube 112 is S2=π/4 (D2-d2), wherein d=D-2H, H
Indicating the thickness of gain straight tube 112, D indicates straight tube outside diameter, and generally takes D/H > 10, therefore, S2≈πDH.Gain straight tube
112 can make full use of the size of YAG medium, make the outer diameter of gain straight tube 112 up to R (D=R), S2=π H × R.In lath
Thickness with and gain straight tube 112 thickness it is identical when, S2/S1=π, tubulose are significantly improved relative to the clear field of lath, corresponding
It will also be significantly improved in the energy of laser beam, therefore the fan-out capability of laser single port diameter greatly improved.
In addition, the first fluid channel and the second fluid channel are used for through cooling medium in the present embodiment,
So that the temperature in 112 outside of gain straight tube and 112 inside of gain straight tube reaches unanimity, and then effectively avoid gain straight
Pipe 112 because temperature gradient is excessively high cause gain tube 110 be broken or caused by during laser propagation because of 110 different location of gain tube at
Temperature is different and then there are refractive index differences, and wavefront distortion degree difference leads to beam quality during in turn resulting in laser transmission
The case where deterioration.
To be cooled down convenient for the lateral wall to the gain straight tube 112, in the present embodiment, first seal pipe
130 both ends pass through the outer wall that sealing ring is set to two tubulose end caps 114 respectively.
Wherein, first seal pipe 130 can be set to the outer wall of the tubulose end cap 114 by the sealing ring
Any position also can be set in the outer wall setting position of the tubulose end cap 114, be not specifically limited herein.
It is appreciated that avoid damaging the sealing ring when the intensity of laser beam is excessively high, it is in the present embodiment, described
The surface of tubulose end cap 114 is provided with reflective coating.
To be cooled down convenient for the inner sidewall to the gain straight tube 112, in the present embodiment, the gain tube 110
The second seal pipe 140 is provided in first fluid channel, the both ends of second seal pipe 140 are set to by sealing ring respectively
The inner wall of two tubulose end caps 114.
Wherein, second seal pipe 140 can be set to the inner wall of the tubulose end cap 114 by the sealing ring
Any position also can be set in the setting position of the inner wall of the tubulose end cap 114, be not specifically limited herein.
To avoid damaging the sealing ring when laser intensity is excessively high, in the present embodiment, first seal pipe 130 can
To be set to the setting position of 114 outer wall of tubulose end cap by the sealing ring.Wherein, which can be root
The laser obtained according to the length of the irradiating width of the laser, the thickness of tubulose end cap 114 and tubulose end cap 114 is in the pipe
The outside blind position of shape end cap 114.Similarly, second seal pipe 140 can be set to the pipe by the sealing ring
The setting position of 114 inner wall of shape end cap.Wherein, which can be the irradiating width according to the laser, tubular tip
Inside blind zone position of the laser that the thickness of cap 114 and the length of tubulose end cap 114 obtain in the tubulose end cap 114.
For further such that the cooling medium in first fluid channel and second fluid channel to the gain straight tube 112
Each position carries out uniformly cooling and then reaches more preferably cooling effect, in the present embodiment, the gain tube 110, described first
Seal pipe 130, second seal pipe 140 and two tubulose end caps 114 are coaxially disposed.
For further such that play better cooling effect to the gain straight tube 112, in the present embodiment, described first
The both ends of seal pipe 130 are respectively arranged with the through-hole being connected to the second fluid channel.The both ends of second seal pipe 140
It is respectively arranged with the through-hole being connected to the first fluid channel.
The shape size of the tubulose end cap 114 can be arbitrary, as long as laser can be made to pass through the tubulose end cap
114 enter the gain straight tube 112, and project after entering tubulose end cap 114 by gain straight tube 112.Described in two
The shape size of tubulose end cap 114 can be identical, be also possible to different.
Optionally, in the present embodiment, the shape size of two tubulose end caps 114 is identical, and the tubulose end cap 114 is wrapped
It includes isometrical section of end cap 114a and reducer end cap 114b, the reducer end cap 114b passes through the isometrical section of end cap 114a and institute
The connection of gain straight tube 112 is stated, and the outer diameter of the isometrical section of end cap 114a is greater than the outer diameter of the gain straight tube 112, the change
The diameter of diameter section end cap 114b by close to described isometrical section of one end end cap 114a to far from described isometrical section of one end end cap 114a by
It is decrescence small.
Referring to Fig. 4, by the way that the tubulose end cap 114 is set as including isometrical section of end cap 114a and reducer end cap
114b, with when carrying out transmission laser, laser is laggard into and through primary event by the lateral wall of reducer end cap 114b
Enter the isometrical section of end cap 114a, and carries out in the isometrical section of end cap 114a entering the gain after one or many reflections straight
To be transmitted in pipe 112, and after the tubulose end cap 114 being transmitted at the output end position positioned at the gain straight tube 112, warp
Isometrical section of end cap 114a of the tubulose end cap 114 carries out the reducer end for entering the tubulose end cap 114 after one or many reflections
Cap 114b is exported after carrying out primary event.
Wherein, the reducer end cap 114b close to one end of the isometrical section of end cap 114a outer diameter can with it is described etc.
The outer diameter of diameter section end cap 114a is identical, can also be different, as long as the laser after reducer end cap 114b reflects can be made to enter
The isometrical section of end cap 114a, and the laser after isometrical section of end cap 114a reflects is made to enter reducer end cap 114b,
It is not specifically limited herein.
For convenient for manufacturing the laser gain component 100, in the present embodiment, the reducer end cap 114b is close to described
The outer diameter of one end of isometrical section of end cap 114a and the outer diameter of the isometrical section of end cap 114a match.
In the present embodiment, the refractive index of the tubulose end cap 114 is consistent with the refractive index of the gain straight tube 112, and
It can be formed in same manufacturing process.By above-mentioned setting, laser can be made to be further reduced laser in transmission process
The energy loss of light beam.
In view of the energy of laser beam is when being promoted, pumping source 120 is needed to provide energy, therefore, to make to pass through laser
More evenly, in the present embodiment, the pumping source 120 is arranged in a tubular form and wraps up the energy of laser beam after gain component 100
In the outside of first seal pipe 130, and the pumping source 120 is separated from each other with first seal pipe 130.
Specifically, in the present embodiment, the pumping source 120, the first seal pipe 130 and gain straight tube 112 are coaxially set
It sets, so that the pump energy that gain straight tube 112 receives everywhere is uniform, so that the laser beam issued is more evenly.
It is appreciated that other positions can also be arranged in the pumping source 120, for example, pumping source 120 can be arranged
The place of light entrance, the light for generating pumping source 120 inject the identical side in position of laser gain component 100 from laser beam
To injecting in laser gain component 100, the energy of energy level transition is provided for the atom on gain tube 110.
On the basis of the above, the application also provides a kind of laser, and the laser includes laser emitter and above-mentioned
Laser gain component 100, a tubulose end cap in the light-emitting surface of the laser emitter and the laser gain component 100
114 are oppositely arranged.
Since the laser includes the laser gain component 100, the laser has to be increased with the laser
Beneficial component 100 is identical or corresponding technical characteristic, does not repeat one by one herein.
To sum up, laser gain component 100 and laser provided by the embodiments of the present application include gain straight tube by setting
112 and two tubulose end caps 114 gain tube 110 to improve laser beam area, and boundless edge effect.Which not only improves swash
Light beam energy, and the laser beam quality transmitted along gain tube 110 is greatly improved.Further, since the gain tube 110
With first fluid channel, the outside of the gain straight tube 112 is enclosed with the first seal pipe 130 to constitute second fluid channel,
So that the inner side and outer side temperature of the gain tube 110 during the work time of laser gain component 100 reaches unanimity, to greatly improve
The energy storage capacity of gain tube 110.
In embodiment provided herein, it should be understood that disclosed device, it can also be by another way
It realizes.The apparatus embodiments described above are merely exemplary.
It should be noted that, in this document, the terms "include", "comprise" or its any other variant are intended to non-row
His property includes, so that include a series of elements, article or equipment not only including those elements, but also including not having
The other element being expressly recited, or further include for this article or the intrinsic element of equipment.Do not limiting more
In the case where, the element that is limited by sentence "including a ...", it is not excluded that in article or equipment including the element
In there is also other identical elements.
The above, the only specific embodiment of the application, but the protection scope of the application is not limited thereto, it is any
Those familiar with the art within the technical scope of the present application, can easily think of the change or the replacement, and should all contain
Lid is within the scope of protection of this application.Therefore, the protection scope of the application shall be subject to the protection scope of the claim.
Claims (10)
1. a kind of laser gain component, which is characterized in that the laser gain component includes pumping source and in the pumping source
Under the action of improve the gain tube of laser beam energy, there is in the gain tube first fluid channel；
The gain tube includes gain straight tube and two tubulose end caps for being respectively arranged at gain straight tube both ends, first fluid
The gain straight tube and two tubulose end caps are run through in channel, and the tubulose end cap is in boss-shaped；
It is enclosed with the first seal pipe on the outside of the gain straight tube, mutually divides between first seal pipe and the gain straight tube
From to form second fluid channel；The first fluid channel and the second fluid channel are used for through cooling medium, so that
It reaches unanimity on the outside of the gain straight tube with the temperature on the inside of the gain straight tube.
2. laser gain component according to claim 1, which is characterized in that the tubulose end cap include isometrical section of end cap and
Reducer end cap, the reducer end cap are connect by the isometrical section of end cap with the gain straight tube, and the isometrical section of end
The outer diameter of cap is greater than the outer diameter of the gain straight tube, the diameter of the reducer end cap by close to described isometrical section of end cap one end extremely
It is gradually reduced far from described isometrical section of end cap one end.
3. laser gain component according to claim 2, which is characterized in that the reducer end cap is close to described isometrical section
The outer diameter of one end of end cap and the outer diameter of the isometrical section of end cap match.
4. laser gain component according to claim 1, which is characterized in that set in the first fluid channel of the gain tube
It is equipped with the second seal pipe, the both ends of second seal pipe pass through sealing ring respectively and are set to the interior of two tubulose end caps
Wall, the both ends of second seal pipe are respectively arranged with the through-hole being connected to the first fluid channel.
5. laser gain component according to claim 4, which is characterized in that the gain tube, first seal pipe, institute
State the second seal pipe and two tubulose end cap coaxial arrangements.
6. laser gain component according to claim 1, which is characterized in that the pumping source is arranged in a tubular form and is wrapped in
The outside of first seal pipe, and the pumping source is separated from each other with first seal pipe.
7. laser gain component according to claim 1, which is characterized in that the both ends of first seal pipe pass through respectively
Sealing ring is set to the outer wall of two tubulose end caps, and the both ends of first seal pipe are respectively arranged with and described second
The through-hole of fluid channel connection.
8. laser gain component according to claim 1, which is characterized in that the surface of the tubulose end cap is provided with reflection
Film layer.
9. laser gain component according to claim 1, which is characterized in that the refractive index and the increasing of the tubulose end cap
The refractive index of beneficial straight tube is consistent.
10. a kind of laser, which is characterized in that the laser includes any one of laser emitter and claim 1-9 institute
The laser gain component stated, the light-emitting surface of the laser emitter are opposite with a tubulose end cap in the laser gain component
Setting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822079651.0U CN209071807U (en) | 2018-12-11 | 2018-12-11 | Laser gain component and laser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822079651.0U CN209071807U (en) | 2018-12-11 | 2018-12-11 | Laser gain component and laser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209071807U true CN209071807U (en) | 2019-07-05 |
Family
ID=67101558
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822079651.0U Expired - Fee Related CN209071807U (en) | 2018-12-11 | 2018-12-11 | Laser gain component and laser |
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| Country | Link |
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| CN (1) | CN209071807U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109361137A (en) * | 2018-12-11 | 2019-02-19 | 中国工程物理研究院激光聚变研究中心 | Laser gain component and laser |
-
2018
- 2018-12-11 CN CN201822079651.0U patent/CN209071807U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109361137A (en) * | 2018-12-11 | 2019-02-19 | 中国工程物理研究院激光聚变研究中心 | Laser gain component and laser |
| CN109361137B (en) * | 2018-12-11 | 2024-01-26 | 中国工程物理研究院激光聚变研究中心 | Laser gain component and laser |
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