CN104269722A - CO2 laser device - Google Patents
CO2 laser device Download PDFInfo
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- CN104269722A CN104269722A CN201410506622.1A CN201410506622A CN104269722A CN 104269722 A CN104269722 A CN 104269722A CN 201410506622 A CN201410506622 A CN 201410506622A CN 104269722 A CN104269722 A CN 104269722A
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- electrode
- laser
- gas circulation
- laser device
- gas
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Abstract
The invention relates to the technical field of lasers, in particular to a laser device. The CO2 laser device comprises a laser device vacuum cavity, and a gas discharge system and a gas circulation cooling system are arranged in the laser device vacuum cavity, wherein the gas discharge system is composed of a main discharge electrode and a preionization electrode; the gas circulation cooling system is composed of a gas circulation fan and a heat exchanger. The small transverse stimulation barometric pressure CO2 laser device is high in adaptability to various platforms, and can be widely applied to the technical fields such as target detection and infrared jamming.
Description
Technical field
The present invention relates to laser technology field, be specifically related to a kind of laser.
Background technology
Along with developing rapidly of laser technology, laser be just widely used in laser ranging, laser guidance, laser reconnaissance, the various aspects such as laser countermeasure (s), laser radar.TEA CO
2laser is in atmospheric window with its 10.6 um wavelength, and peak power is high, and it is strong to penetrate smog ability, to eye-safe, simultaneously also can with the advantage such as forward-looking infrared system is compatible, be subject to each military power and competitively pay close attention to.In order to adapt to follow the tracks of laser application system to TEA CO
2laser high repetition frequency, volume is little, and quality is light, is convenient to the requirement of frame dress, and the lasing light emitter of development high-repetition-rate miniaturization is TEA CO
2laser key technology to be solved.
Summary of the invention
The present invention is intended to propose a kind of repetition rate, and volume is little, and quality is light and be convenient to the CO of frame dress
2laser.
Technical program of the present invention lies in:
A kind of CO
2laser, comprises a laser vacuum cavity, includes discharge system and gas circulation cooling system in laser vacuum cavity; Wherein gas discharge system is made up of main discharge electrode and pre-ionization electrode; Gas circulation cooling system is made up of gas circulation blower fan and heat exchanger.
Preferably, described laser cavity adopts stainless steel material precision welding to form.
Preferably, described main discharge electrode and pre-ionization electrode, between gas circulation blower fan and heat exchanger, combination part is tightly connected by high vacuum silicon rubber loop.
More preferably, described main discharge electrode adopts the Zhang Shi electrode after improving; Electrode material selects 45# carbon steel, main discharge electrode spacing 10 mm, electrode width 10 mm, electrode length 120 mm.
Or preferably, be also provided with optical resonator in described gas discharge system.
Technique effect of the present invention is:
Small-sized transverse excitation atmosphere CO
2laser has very strong adaptability to kinds of platform, can be widely applied to the technical field such as target acquisition and Infrared jamming.
Embodiment
A kind of CO
2laser, comprises a laser vacuum cavity, includes discharge system and gas circulation cooling system in laser vacuum cavity; Wherein gas discharge system is made up of main discharge electrode and pre-ionization electrode; Gas circulation cooling system is made up of gas circulation blower fan and heat exchanger.Described laser cavity adopts stainless steel material precision welding to form.Described main discharge electrode and pre-ionization electrode, between gas circulation blower fan and heat exchanger, combination part is tightly connected by high vacuum silicon rubber loop.Described main discharge electrode adopts the Zhang Shi electrode after improving; Electrode material selects 45# carbon steel, main discharge electrode spacing 10 mm, electrode width 10 mm, electrode length 120 mm.Also optical resonator is provided with in described gas discharge system.
Main discharge electrode adopts the Zhang Shi electrode after improving, and be the discharge instability avoiding cathode surface sputtering under high repetition frequency condition to cause, electrode material selects 45# carbon steel, main discharge electrode spacing 10 mm, electrode width 10 mm, electrode length 120 mm.In order to reduce the volume of laser while effectively improving electric discharge gain volume, preionization assembly adopts quartz glass tubulose UV corona preionization structure, is fastened on the both sides of main discharge negative electrode.Before main electrode electric discharge, the leading non-self-maintained discharge of preionization, the portion gas be positioned between main electrode is ionized, and between negative and positive two main electrode, form uniform electric field, inter-electrode impedance declines rapidly, and then obtains uniform and stable main electrode glow discharge.
Laserresonator adopts typical flat-concave cavity structure, and Effect of Back-Cavity Mirror is the surface gold-plating total reflective mirror of the oxygen-free copper substrate of radius of curvature 4 m, and outgoing mirror is the ZnSe level crossing of fractional transmission.Owing to adopting corona preionization mode, Laser output gain in resonant cavity is lower, outgoing mirror adopts the technique of double-sided coating, and the working face inside chamber plates wavelength centered by 10.6um and reflectivity is the rete of 60%, the anti-reflection film of face plating wavelength centered by 10.6 um outside chamber.In order to improve the beam quality of Output of laser further, in chamber, install limit mould diaphragm additional near the position of outgoing mirror, to obtain the Laser output of low-order mode.
Laser Devices adopt high-speed turbine booster fan to obtain the air-flow of high-speed circulating, by optimizing the structure in air channel, can reduce the pressure loss, make air-flow stable when flowing through region of discharge, even.The redundancy heat that gas discharge produces can deposit and be discharged into its exterior environment by heat exchanger effectively.
Claims (5)
1. a CO
2laser, is characterized in that: comprise a laser vacuum cavity, includes discharge system and gas circulation cooling system in laser vacuum cavity; Wherein gas discharge system is made up of main discharge electrode and pre-ionization electrode; Gas circulation cooling system is made up of gas circulation blower fan and heat exchanger.
2. as claim 1 CO
2laser, is characterized in that: described laser cavity adopts stainless steel material precision welding to form.
3. as claim 1 CO
2laser, is characterized in that: described main discharge electrode and pre-ionization electrode, between gas circulation blower fan and heat exchanger, combination part is tightly connected by high vacuum silicon rubber loop.
4. as claim 3 CO
2laser, is characterized in that: described main discharge electrode adopts the Zhang Shi electrode after improving; Electrode material selects 45# carbon steel, main discharge electrode spacing 10 mm, electrode width 10 mm, electrode length 120 mm.
5. as claim 3 CO
2laser, is characterized in that: be also provided with optical resonator in described gas discharge system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410506622.1A CN104269722A (en) | 2014-09-28 | 2014-09-28 | CO2 laser device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410506622.1A CN104269722A (en) | 2014-09-28 | 2014-09-28 | CO2 laser device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104269722A true CN104269722A (en) | 2015-01-07 |
Family
ID=52161226
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410506622.1A Pending CN104269722A (en) | 2014-09-28 | 2014-09-28 | CO2 laser device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104269722A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111736172A (en) * | 2020-08-24 | 2020-10-02 | 中国人民解放军国防科技大学 | Air target detection method based on atmospheric disturbance coherent laser detection |
-
2014
- 2014-09-28 CN CN201410506622.1A patent/CN104269722A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111736172A (en) * | 2020-08-24 | 2020-10-02 | 中国人民解放军国防科技大学 | Air target detection method based on atmospheric disturbance coherent laser detection |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150107 |
|
| WD01 | Invention patent application deemed withdrawn after publication |