CN205051162U - Optical pumping gas laser - Google Patents
Optical pumping gas laser Download PDFInfo
- Publication number
- CN205051162U CN205051162U CN201520874479.1U CN201520874479U CN205051162U CN 205051162 U CN205051162 U CN 205051162U CN 201520874479 U CN201520874479 U CN 201520874479U CN 205051162 U CN205051162 U CN 205051162U
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- gas laser
- microscope base
- water
- input
- fixed end
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Abstract
The utility model relates to a laser technical field, concretely relates to optical pumping gas laser, including vacuum wave guide (1), light bridge (5), input coupling speculum (19) and output coupling mirror (25), install on guang qiao (5) through stiff end seat (2) respectively at the both ends of vacuum wave guide (1), between stiff end seat (2) and output microscope base (3), all be by welded bellows (17) sealing connection between stiff end seat (2) and the input microscope base (4), welded bellows (17) outside all is provided with micromatic setting and spring locking device on every side. The utility model discloses a gas laser's longitudinal mode selection realizes accurate fine setting, guarantees the output beam quality of laser instrument, can make compact structure again, improve stability, has fabulous precision, the linearity, stability and resetting nature to whole equipment rigidity is high.
Description
Technical field
The utility model relates to laser technology field, is specifically related to a kind of optical pumped gas laser to chamber progress row nanoscale fine adjustment while keeping high vacuum state.
Background technology
Optical pumped gas laser (most typical as gas thz laser device) general work air pressure is lower, gas atom or the absorption line of molecule to pump light narrower.With this understanding, for realizing pump light required wavelength stimulated radiation being amplified to the extraction conversion of light, following technical problem need be solved: pump light is coupled with the spatial model of oscillating laser, laser medium is selected the absorption of pump light, the longitudinal mode of laserresonator, the heat management of laser medium and the optical stabilization etc. of system.Theoretical and experience shows, system vacuum, thermal effect (comprising thermal deformation and temperature rise) and mechanical stability can have a strong impact on the normal operation of laser.The degree of regulation of resonator length must reach nanoscale and just may realize optimum longitudinal mode selection.
Because gas laser volume is comparatively large, chamber longer (2 ~ 3 meters), and be limited to vacuum requirement, prior art all adopts the mode of motor, guide rail or manual translation platform to carry out cavity length adjustment, its precision, the linearity, stability and resetting are poor, and system stiffness is lower.The utility model devises the vacuum chamber embedding structure of ring-shaped piezo ceramic, has that structure is simple, compact, the advantage of high accuracy, high linearity.
Utility model content
The purpose of this utility model is to provide a kind of optical pumped gas laser, solve optical pumped gas laser of the prior art, adopt the mode of motor, guide rail or manual translation platform to carry out cavity length adjustment, its precision, the linearity, stability and resetting are poor, the problem that system stiffness is lower.
For solving above-mentioned technical problem, the utility model by the following technical solutions:
A kind of optical pumped gas laser, comprise Vacuum waveguide pipe, light bridge, input coupled mirrors and output coupling mirror, the two ends of described Vacuum waveguide pipe are installed on light bridge respectively by fixed end base, described input coupled mirrors is arranged on light bridge by input microscope base, described output coupling mirror is being arranged on light bridge by exporting microscope base, and input coupled mirrors and output coupling mirror are separately positioned on the two ends of Vacuum waveguide pipe; Described fixed end base and export between microscope base, be all be tightly connected by welding bellows between fixed end base and input microscope base, welding bellows outer periphery is provided with micromatic setting and spring locking device.
Further, described micromatic setting is that fine thread is secondary, micromatic setting by the threaded adjusting fixed end base in fine thread pair with between input microscope base, and and the microspur that exports between microscope base; Described spring locking device is made up of bolt and spring, and spring locking dress is realized between fixed end base and input microscope base by the reseting elasticity of bolt thread and spring, and and the position locking that exports between microscope base.
Further, described smooth bridge has three at least, and described fine thread pair has three at least, and described bolt and spring form spring locking device and have three at least.
Further, the outer wall of described Vacuum waveguide pipe is enclosed with water collar, and water collar is circumscribed with water inlet pipe and outlet pipe, and described water collar fills cooling water by water inlet pipe, discharges cooling water by outlet pipe; Described input microscope base and output microscope base are provided with water-cooled runner, and water-cooled runner is circumscribed with water-cooling joint, fills cooling water by water-cooling joint.
Further, described input coupled mirrors is threaded in the end of ring-shaped piezo ceramic, the head end of described ring-shaped piezo ceramic is provided with power control line, window cover plate and window mirror, power control line is connected with external power source by aviation plug, described window cover plate, window mirror are arranged on the axis of Vacuum waveguide pipe, the middle part inputting coupled mirrors, the axial location place being positioned at Vacuum waveguide pipe have aperture, and pump light is by the parallel resonant cavity injecting Vacuum waveguide pipe of aperture.
Further, described output coupling mirror by binding ring and transition compressing tablet fastening.
Further, described output coupling mirror is made up of quartz substrate plated film, and binding ring is copper pressure ring, and transition compressing tablet is soft material, and input coupled mirrors is gold-plated bronze mirror.
Further, between the outer wall of described fixed end base and Vacuum waveguide pipe, be provided with O RunddichtringO, and fixed end base is fixedly mounted on light bridge by trip bolt.
Further, described Vacuum waveguide pipe is vacuum metal pipe or quartz glass tube, and described smooth bridge is made up of invar.
Compared with prior art, the beneficial effects of the utility model are:
1, the longitudinal mode achieving gas laser is selected, and realizes Precision trimming, ensures the output beam quality of laser, can make again compact conformation, improve stability, have fabulous precision, the linearity, stability and resetting, and whole equipment rigidity be high.
2, input coupled mirrors and output coupling mirror are placed in vacuum environment, and realize micro-positioning regulators by outside fine thread secondary to be connected with welding bellows, the connection employing O type rubber seal of optical element, entire system vacuum performance is good.
3, the mode of input coupling mirror center drilling, make pump light coaxial with oscillating laser, fully ensure that the coupling of spatial model, laser medium improves the absorption efficiency of pump light.
4, input coupling mirror is fixed on ring-shaped piezo ceramic end, and entirety is positioned in vacuum system, achieves the cavity length control of high precision, high linearity, and have very high stability while safeguards system vacuum degree.The hollow structure of ring-shaped piezo ceramic makes pump light clog-freely to incide in waveguide, and does not affect the micro-positioning regulators of input coupling mirror.
5, input coupled mirrors and output coupling mirror are arranged on the very little light bridge of thermal deformation, microscope base is processed with water-cooling structure, the impact of system thermal deformation on light path and chamber length is dropped to minimum, and the water collar of Vacuum waveguide pipe outer wall can keep the temperature constant of cavity inner laser gas medium, laser stabilization is run.
6, input/output terminal all coordinates fastening by three groups of bolt springs, realizes pitching fine setting, and connects transition by welding bellows, make the optical path adjusting outside vacuum chamber very convenient by three fine thread pairs.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model optically pumped gas laser device input.
Fig. 2 is the structural representation of the utility model optically pumped gas laser device output.
Fig. 3 is the side-looking structure chart of the utility model output.
In figure: 1-Vacuum waveguide pipe, 2-fixed end base, 3-export microscope base, 4-input microscope base, 5-light bridge, 6-water collar, 7-cooling water, 8-water inlet pipe, 9-outlet pipe, 10-O RunddichtringO, 11-water-cooling joint, 12-fine thread is secondary, 13-bolt, 14-water-cooled runner, 15-spring, 16-trip bolt, 17-welding bellows, 19-input coupled mirrors, 20-aperture, 21-ring-shaped piezo ceramic, 22-aviation plug, 23-window cover plate, 24-window mirror, 25-output coupling mirror, 26-transition compressing tablet, 27-binding ring.
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the utility model, and be not used in restriction the utility model.
Fig. 1, Fig. 2 and Fig. 3 show an embodiment of a kind of optical pumped gas of the utility model laser: a kind of optical pumped gas laser, comprise Vacuum waveguide pipe 1, light bridge 5, input coupled mirrors 19 and output coupling mirror 25, the two ends of described Vacuum waveguide pipe 1 are installed on light bridge 5 respectively by fixed end base 2, described input coupled mirrors 19 is arranged on light bridge 5 by input microscope base 4, described output coupling mirror 25 is being arranged on light bridge 5 by exporting microscope base 3, and input coupled mirrors 19 and output coupling mirror 25 are separately positioned on the two ends of Vacuum waveguide pipe 1; Be all be tightly connected by welding bellows 17 between described fixed end base 2 and output microscope base 3, between fixed end base 2 and input microscope base 4, welding bellows 17 outer periphery is provided with micromatic setting and spring locking device.
Described fixed end base 2 with input microscope base 4, export between microscope base 3 and be connected by welding bellows 17, make it junction and can carry out relative position and move, thus provide possibility for the adjustment of micromatic setting.
According to an embodiment of a kind of optical pumped gas laser of the utility model, described micromatic setting is fine thread pair 12, micromatic setting by the threaded adjusting fixed end base 2 in fine thread pair 12 with between input microscope base 4, and and the microspur that exports between microscope base 3; Described spring locking device is made up of bolt 13 and spring 15, and spring locking dress is realized between fixed end base 2 and input microscope base 4 by the reseting elasticity of bolt 13 screw thread and spring 15, and and the position locking that exports between microscope base 3.
Described spring locking device is by spring 15, between fixed end base 2 and input microscope base 4, and provide a compression stress in opposite directions between fixed end base 2 and output microscope base 3, remain the power that input microscope base 4 and output microscope base 3 compress to fixed end base 2, and fine thread pair 12 withstands between fixed end base 2 and input microscope base 4 all the time in micromatic setting, between fixed end base 2 and output microscope base 3, the unified fine thread secondary 12 that rotates just can realize between fixed end base 2 and input microscope base 4, and the distance between fixed end base 2 and output microscope base 3, and the described fine thread pair 12 of single rotation also can realize the adjustment at angle of inclination.
According to a preferred embodiment of a kind of optical pumped gas laser of the utility model, described smooth bridge 5 has three at least, and described fine thread pair 12 has three at least, and described bolt 13 and spring 15 form spring locking device and have three at least.
According to another embodiment of a kind of optical pumped gas laser of the utility model, the outer wall of described Vacuum waveguide pipe 1 is enclosed with water collar 6, water collar 6 is circumscribed with water inlet pipe 8 and outlet pipe 9, and described water collar 6 fills cooling water 7 by water inlet pipe 8, discharges cooling water 7 by outlet pipe 9; Described input microscope base 4 and output microscope base 3 are provided with water-cooled runner 14, and water-cooled runner 14 is circumscribed with water-cooling joint 11, fills cooling water by water-cooling joint 11.The gap of the outer wall of water collar 6 and Vacuum waveguide pipe 1 can be 2mm.
According to another embodiment of a kind of optical pumped gas laser of the utility model, described input coupled mirrors 19 is threaded in the end of ring-shaped piezo ceramic 21, the head end of described ring-shaped piezo ceramic 21 is provided with power control line, window cover plate 23 and window mirror 24, power control line is connected with external power source by aviation plug 22, described window cover plate 23, window mirror 24 is arranged on the axis of Vacuum waveguide pipe 1, the middle part of input coupled mirrors 19, the axial location place being positioned at Vacuum waveguide pipe 1 has aperture 20, pump light is by the parallel resonant cavity injecting Vacuum waveguide pipe 1 of aperture 20.
Described window mirror 24 can make of ZnSe crystal, and with the seal with elastometic washer of O type, ensures the transmitance that pump light (CO2 laser) is greater than 99%.
According to another embodiment of a kind of optical pumped gas laser of the utility model, described output coupling mirror 25 by binding ring 27 and transition compressing tablet 26 fastening.
According to another preferred embodiment of a kind of optical pumped gas laser of the utility model, described output coupling mirror 25 is made up of quartz substrate plated film, to pump light total reflection, has higher reflection and certain transmission to terahertz light.Binding ring 27 is copper pressure rings, and transition compressing tablet 26 is soft material, and coated surface can be protected not damage.After pump light focuses on, focus is positioned at the central aperture place of input coupled mirrors, forms Gaussian Profile in the waveguide after transmission reflection.Input coupled mirrors 19 is gold-plated bronze mirror, and radius of curvature is long and waveguide internal diameter optimization relative to chamber.
According to another embodiment of a kind of optical pumped gas laser of the utility model, between described fixed end base 2 and the outer wall of Vacuum waveguide pipe 1, be provided with O RunddichtringO, and fixed end base 2 is fixedly mounted on light bridge 5 by trip bolt.
According to another embodiment of a kind of optical pumped gas laser of the utility model, described Vacuum waveguide pipe 1 is vacuum metal pipe or quartz glass tube, and vacuum metal pipe can adopt the material such as aluminum pipe, stainless steel tube, after high-temperature baking degasification, the silver-plated increase reflectivity of inner surface, reduces the wastage.When using quartz glass, pipe thickness is thin compared with metallic waveguide.Described smooth bridge 5 is made up of invar, and the thermal deformation coefficient that invar is less ensure that the influence of thermal deformation that the spacing between the fixed end base of two ends is subject to is less.
Although be described the utility model with reference to multiple explanatory embodiment of the present utility model here, but, should be appreciated that, those skilled in the art can design a lot of other amendment and execution mode, these amendments and execution mode will drop within spirit disclosed in the present application and spirit.More particularly, in the scope of, accompanying drawing open in the application and claim, multiple modification and improvement can be carried out to the building block of subject combination layout and/or layout.Except the distortion carried out building block and/or layout and improving, to those skilled in the art, other purposes also will be obvious.
Claims (9)
1. an optical pumped gas laser, it is characterized in that: comprise Vacuum waveguide pipe (1), light bridge (5), input coupled mirrors (19) and output coupling mirror (25), the two ends of described Vacuum waveguide pipe (1) are installed on light bridge (5) respectively by fixed end base (2), described input coupled mirrors (19) is arranged on light bridge (5) by input microscope base (4), described output coupling mirror (25) is being arranged on light bridge (5) by exporting microscope base (3), and input coupled mirrors (19) and output coupling mirror (25) are separately positioned on the two ends of Vacuum waveguide pipe (1), be all be tightly connected by welding bellows (17) between described fixed end base (2) and output microscope base (3), between fixed end base (2) and input microscope base (4), welding bellows (17) outer periphery is provided with micromatic setting and spring locking device.
2. a kind of optical pumped gas laser according to claim 1, it is characterized in that: described micromatic setting is fine thread pair (12), micromatic setting by the threaded adjusting fixed end base (2) in fine thread pair (12) with between input microscope base (4), and and output microscope base (3) between microspur; Described spring locking device is made up of bolt (13) and spring (15), spring locking dress is realized between fixed end base (2) and input microscope base (4) by the reseting elasticity of bolt (13) screw thread and spring (15), and and output microscope base (3) between position lock.
3. a kind of optical pumped gas laser according to claim 2, it is characterized in that: described smooth bridge (5) has three at least, described fine thread pair (12) has three at least, and described bolt (13) and spring (15) form spring locking device and have three at least.
4. a kind of optical pumped gas laser according to claim 1, it is characterized in that: the outer wall of described Vacuum waveguide pipe (1) is enclosed with water collar (6), water collar (6) is circumscribed with water inlet pipe (8) and outlet pipe (9), described water collar (6) fills cooling water (7) by water inlet pipe (8), by outlet pipe (9) release cooling water (7); Described input microscope base (4) and output microscope base (3) are provided with water-cooled runner (14), water-cooled runner (14) is circumscribed with water-cooling joint (11), fills cooling water by water-cooling joint (11).
5. a kind of optical pumped gas laser according to claim 1, it is characterized in that: described input coupled mirrors (19) is threaded in the end of ring-shaped piezo ceramic (21), the head end of described ring-shaped piezo ceramic (21) is provided with power control line, window cover plate (23) and window mirror (24), power control line is connected with external power source by aviation plug (22), described window cover plate (23), window mirror (24) is arranged on the axis of Vacuum waveguide pipe (1), the middle part of input coupled mirrors (19), the axial location place being positioned at Vacuum waveguide pipe (1) has aperture (20), pump light is by the parallel resonant cavity injecting Vacuum waveguide pipe (1) of aperture (20).
6. a kind of optical pumped gas laser according to claim 1, is characterized in that: described output coupling mirror (25) by binding ring (27) and transition compressing tablet (26) fastening.
7. a kind of optical pumped gas laser according to claim 6, it is characterized in that: described output coupling mirror (25) is made up of quartz substrate plated film, binding ring (27) is copper pressure ring, transition compressing tablet (26) is soft material, and input coupled mirrors (19) is gold-plated bronze mirror.
8. a kind of optical pumped gas laser according to claim 1, it is characterized in that: between the outer wall of described fixed end base (2) and Vacuum waveguide pipe (1), be provided with O RunddichtringO, and fixed end base (2) is fixedly mounted on light bridge (5) by trip bolt.
9. a kind of optical pumped gas laser according to claim 1, is characterized in that: described Vacuum waveguide pipe (1) is vacuum metal pipe or quartz glass tube, and described smooth bridge (5) is made up of invar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520874479.1U CN205051162U (en) | 2015-11-04 | 2015-11-04 | Optical pumping gas laser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520874479.1U CN205051162U (en) | 2015-11-04 | 2015-11-04 | Optical pumping gas laser |
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| Publication Number | Publication Date |
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| CN205051162U true CN205051162U (en) | 2016-02-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520874479.1U Expired - Fee Related CN205051162U (en) | 2015-11-04 | 2015-11-04 | Optical pumping gas laser |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105244742A (en) * | 2015-11-04 | 2016-01-13 | 中国工程物理研究院激光聚变研究中心 | Optical pumped gas laser |
| CN108183384A (en) * | 2018-02-09 | 2018-06-19 | 武汉晟诺仪器科技有限公司 | The laser beam multidimensional precision adjustment unit of integrated active heat radiation structure |
-
2015
- 2015-11-04 CN CN201520874479.1U patent/CN205051162U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105244742A (en) * | 2015-11-04 | 2016-01-13 | 中国工程物理研究院激光聚变研究中心 | Optical pumped gas laser |
| CN108183384A (en) * | 2018-02-09 | 2018-06-19 | 武汉晟诺仪器科技有限公司 | The laser beam multidimensional precision adjustment unit of integrated active heat radiation structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160224 Termination date: 20181104 |