CN201126920Y - Laser cavity of pulse gas laser - Google Patents
Laser cavity of pulse gas laser Download PDFInfo
- Publication number
- CN201126920Y CN201126920Y CNU2007200947473U CN200720094747U CN201126920Y CN 201126920 Y CN201126920 Y CN 201126920Y CN U2007200947473 U CNU2007200947473 U CN U2007200947473U CN 200720094747 U CN200720094747 U CN 200720094747U CN 201126920 Y CN201126920 Y CN 201126920Y
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- discharge
- cavity
- laser
- guiding device
- heat exchanger
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Abstract
The utility model relates to a pulse gas laser lasing cavity, comprising a gas guiding device, a heat exchanger, a discharge exciting source, a discharge cavity and a fan; the gas guiding device, the heat exchanger, the discharge exciting source, the discharge cavity and the fan form into a gas circulation channel which is used as a closed lasing cavity directly; the discharge exciting source is disposed in the gas circulation channel. The utility model has high utilization rate, compacter structure and tends to be modularized; on condition of maintaining all the functional properties of cylindrical lasing cavity, the utility model reduces volume and weight of the lasing cavity, improves maintainability, miniaturizes and lightens the entire laser as well as enhances practicability and mobility.
Description
Technical field
The utility model relates to a kind of pulsed gas laser laser cavity that adopts the discharge excitation working form.
Background technology
Adopt the pulsed gas laser of discharge excitation working form, under the condition that laser cavity is operated in airtight (vacuum or pressure), require working gas in the chamber to circulate and fast by region of discharge, and to because of discharge and circulate the gas that work done elevates the temperature and implement cooling with the maintenance working stability.Therefore in laser cavity structure except lasing discharge excitation source and discharge cavity are arranged, the heat exchanger of blower fan, guiding device and cooling that working gas is circulated also need be arranged.Present a kind of typical structure cartridge type laser cavity comprises housing, air flow guiding device, heat exchanger, discharge excitation source, discharge cavity, blower fan; In the middle of this laser cavity is empty, and the discharge excitation source is outside the wall of chamber, and the space availability ratio of structure is low, and overall volume is big; Housing (comprising end cap) is as vacuum or pressure vessel, and its characteristic size diameter (circle) or the length of side (square) are very big, requires its weight also very big for guaranteeing structural strength and stable; Blower fan and heat exchanger are contained in the chamber, relate to the structure parts that much are associated inside and outside the chamber when its assembling and dismounting, safeguard and all very inconvenience of maintenance.The laser of this structure is unfavorable for that the engineering application is particularly as motor-driven cross-country platform use.
The utility model content
The technical problems to be solved in the utility model provides that a kind of volume is little, in light weight, the pulsed gas laser laser cavity of maintenance and easy to maintenance, practicality and mobility strong.
Pulsed gas laser laser cavity of the present utility model comprises air flow guiding device, heat exchanger, discharge excitation source, discharge cavity, blower fan; Described air flow guiding device, heat exchanger, discharge excitation source, discharge cavity, blower fan are formed the gas circulation runner, and this gas circulation runner is directly as airtight laser cavity; Described discharge excitation source is placed in the middle of the gas circulation runner.
The gas circulation runner that the utility model air flow guiding device, heat exchanger, discharge excitation source, discharge cavity, blower fan are formed is directly as airtight laser cavity, and the discharge excitation source is placed in the middle of the gas circulation runner, banned the former cartridge type laser cavity housing of describing in the background technology (comprising end cap), improved space availability ratio, more compact structure and be tending towards modularization; Under all functions characteristic prerequisite that keeps former cartridge type laser cavity, reduced the volume and weight of laser cavity, improved maintainability, make the miniaturization of laser complete machine, lightweight, improved practicality and mobility.
The inner support plate that adopts of described air flow guiding device is separated into a plurality of parallel channels, and the corresponding reinforcement of peripheral hardware, and structural design can adopt the less sheet material of thickness, makes the laser cavity overall weight lighter.
Adopt flange to add the draw bail of sealing ring between described air flow guiding device and heat exchanger, discharge cavity, the blower fan, sealing property is reliable, and is easy to the assembling and the dismounting of single parts, makes laser cavity have good maintenance and maintainability.
Through measuring and calculating, the former cartridge type laser cavity of describing in pulsed gas laser laser cavity of the present utility model and the background technology is compared, the duty volume can reduce more than 40%, weight can reduce more than 50%, thereby laser machine volume and weight all can be reduced more than 30%, and its practicality and mobility all greatly increase.
Description of drawings
Fig. 1 is the cartridge type laser cavity structure schematic diagram of background technology.11 is housings among the figure, 12,14,17,19 air flow guiding devices, 13,18 heat exchangers, 15 discharge excitation sources, 16 discharge cavities, 110 blower fans.
Fig. 2 is a pulsed gas laser laser cavity structure schematic diagram of the present utility model, 22,24,27,29 air flow guiding devices among the figure, 23,28 heat exchangers, 25 discharge excitation sources, 26 discharge cavities, 210 blower fans.
Embodiment
As shown in Figure 1, it is the laser axis cross sectional representation of the cartridge type laser cavity of background technology description, wherein 11 is that the laser cavity housing (is illustrated as columnar, also has square tube shape), 12, the 14,17, the 19th, channel cross-section is the air flow guiding device of rectangle, the 13, the 18th, and the fin-tube type of case structure or finned plate heat exchanger, the 15th, the discharge excitation source of case structure, the 16th, channel cross-section is the discharge cavity of rectangle, the 110th, and the axial flow blower of separate unit or many parallel connections or centrifugal blower; Housing (comprising end cap) is as vacuum or pressure vessel; The discharge excitation source is outside housing; Air flow guiding device, blower fan, heat exchanger are contained in the housing.
As shown in Figure 2, pulsed gas laser laser cavity of the present utility model comprises air flow guiding device 22,24,27,29, heat exchanger 23,28, discharge excitation source 25, discharge cavity 26, blower fan 210.Described air flow guiding device the 22,24,27, the 29th, channel cross-section is the airtight flow passage chamber of rectangle, is made by metal material, its inner support plate that adopts is separated into a plurality of parallel channels, and the corresponding reinforcement of peripheral hardware; Heat exchanger the 23, the 28th, the fin-tube type of case structure or finned plate heat exchanger; Discharge excitation source 25 is discharge excitation sources of case structure, and discharge cavity 26 is that channel cross-section is the discharge cavity of rectangle, and discharge excitation source 25 and discharge cavity 26 are made by metal material and electronic devices and components; Blower fan 210 is axial flow blower or centrifugal blowers of separate unit or many parallel connections.Air flow guiding device 22,24,27,29, heat exchanger 23,28, discharge excitation source 25, discharge cavity 26, blower fan 210 is formed the gas circulation runner, and this gas circulation runner is directly as airtight laser cavity.Described discharge excitation source 25 is placed in the middle of the gas circulation runner.Adopt flange to add the draw bail of sealing ring between described air flow guiding device 22,24,27,29 and heat exchanger 23 and 28, discharge cavity 26, the blower fan 210.
The formed circular passage of each parts of the utility model is designed by closed structure, stress requires to carry out vacuum tank or design of pressure vessels according to concrete pulse laser operating pressure, and promptly each air flow guiding device, outer cover of heat exchanger, blower housing, discharge excitation source shell and discharging chamber all are the hermetically-sealed construction parts.The discharge cavity of bottom and air flow guiding device adopt corresponding supporting construction to be installed on the base; Can adopt direct connecting mode between the blower fan on top and air flow guiding device, also can adopt and to be out of shape the soft connecting mode (adding metal bellows) that compensates to sum of errors as the centre; Also should add fan supporter for supporting blower fan weight, fan supporter can be supported on the base and also can be supported on the discharge excitation source.
Start the blower fan running during laser works, the working gas in the blower fan actuator chamber circulates by certain orientation, and blower fan can adopt single fixed rotating speed or the running of a plurality of different rotating speeds by job requirement, and the latter need adopt Frequency Converter Control.Intracavity gas is because of discharge and circulate its temperature of work done and will raise, and obtains cooling when flowing through heat exchanger (inside is connected with cooling fluid) temperature is descended, and enters discharge cavity with the temperature value of minor swing amplitude very after reaching thermal equilibrium state.
Claims (3)
1, a kind of pulsed gas laser laser cavity, comprise air flow guiding device, heat exchanger, the discharge excitation source, discharge cavity, blower fan is characterized in that described air flow guiding device (22,24,27,29), heat exchanger (23,28), discharge excitation source (25), discharge cavity (26), blower fan (210) composition gas circulation runner, and this gas circulation runner is directly as airtight laser cavity; Described discharge excitation source (25) is placed in the middle of the gas circulation runner.
2, pulsed gas laser laser cavity according to claim 1 is characterized in that the inner support plate that adopts of air flow guiding device (22,24,27,29) is separated into a plurality of parallel channels, and the corresponding reinforcement of peripheral hardware.
3, pulsed gas laser laser cavity according to claim 1 is characterized in that adopting between described air flow guiding device (22,24,27,29) and heat exchanger (23,28), discharge cavity (26), the blower fan (210) flange to add the draw bail of sealing ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200947473U CN201126920Y (en) | 2007-12-10 | 2007-12-10 | Laser cavity of pulse gas laser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200947473U CN201126920Y (en) | 2007-12-10 | 2007-12-10 | Laser cavity of pulse gas laser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201126920Y true CN201126920Y (en) | 2008-10-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200947473U Expired - Fee Related CN201126920Y (en) | 2007-12-10 | 2007-12-10 | Laser cavity of pulse gas laser |
Country Status (1)
| Country | Link |
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| CN (1) | CN201126920Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102118006B (en) * | 2009-12-30 | 2012-06-27 | 杭州中科新松光电有限公司 | Vacuum debugging process for light cavity of high-power gas laser |
| CN109462134A (en) * | 2018-12-25 | 2019-03-12 | 中国科学院长春光学精密机械与物理研究所 | A kind of miniature laser chamber and gas laser |
| CN110649451A (en) * | 2019-09-29 | 2020-01-03 | 中国科学院长春光学精密机械与物理研究所 | Spark gap switch |
| CN114188799A (en) * | 2020-09-14 | 2022-03-15 | 中国科学院大连化学物理研究所 | Closed-loop type flow gas stimulated Raman scattering frequency conversion device |
| CN115347439A (en) * | 2022-08-23 | 2022-11-15 | 西北核技术研究所 | Gas laser and method of outputting pulsed laser light |
-
2007
- 2007-12-10 CN CNU2007200947473U patent/CN201126920Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102118006B (en) * | 2009-12-30 | 2012-06-27 | 杭州中科新松光电有限公司 | Vacuum debugging process for light cavity of high-power gas laser |
| CN109462134A (en) * | 2018-12-25 | 2019-03-12 | 中国科学院长春光学精密机械与物理研究所 | A kind of miniature laser chamber and gas laser |
| CN110649451A (en) * | 2019-09-29 | 2020-01-03 | 中国科学院长春光学精密机械与物理研究所 | Spark gap switch |
| CN114188799A (en) * | 2020-09-14 | 2022-03-15 | 中国科学院大连化学物理研究所 | Closed-loop type flow gas stimulated Raman scattering frequency conversion device |
| CN114188799B (en) * | 2020-09-14 | 2023-11-17 | 中国科学院大连化学物理研究所 | Closed-loop type flowing gas stimulated Raman scattering frequency conversion device |
| CN115347439A (en) * | 2022-08-23 | 2022-11-15 | 西北核技术研究所 | Gas laser and method of outputting pulsed laser light |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081001 Termination date: 20100111 |