CN200969478Y - Novel laser focusing cavity - Google Patents
Novel laser focusing cavity Download PDFInfo
- Publication number
- CN200969478Y CN200969478Y CN 200620047760 CN200620047760U CN200969478Y CN 200969478 Y CN200969478 Y CN 200969478Y CN 200620047760 CN200620047760 CN 200620047760 CN 200620047760 U CN200620047760 U CN 200620047760U CN 200969478 Y CN200969478 Y CN 200969478Y
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Abstract
The utility model discloses a new laser-gathering cavity, which comprises a left end-cap, a right end-cap and a cavity shell. The left end-cap and the right end-cap are arranged with a coolant channel, the cavity shell is fixed provided with a transparent quartz casing, a closed cavity encapsulated around the quartz casing is formed between the quartz casing and the cavity shell, the quartz casing is in parallel arranged with a light source channel and a laser bar channel, the left end and the right end of the light source channel and the laser bar channel are respectively communicated and sealed with the coolant channel arranged within the left end-cap and the right end-cap, the left and right outer end of the left and right end-cap are respectively provided with a light source pipe through hole and a laser bar through hole in the position corresponding the light source channel and the laser bar channel, the closed cavity formed between the cavity shell and the quartz casing is filled with powders of high reflectivity. When the utility model new laser-gathering cavity is used, a uniform diffuse reflection surface with high reflectivity is formed on the outer wall of the quartz casing, the work efficiency is improved, further more, the performance of corrosion resistance, high temperature tolerance and sewage resistance is good and the service life is longer.
Description
Technical field
The present invention relates to a kind of beam condensing unit of laser, specifically, what relate to is a kind of hard-pressed bale formula laser-gathering cavity, can be widely used in solid, the liquid laser.
Background technology
Complete laser has laser pump cavity, working-laser material, optical resonator, pump light source and cooling system to constitute usually.Laser pump cavity is the vitals in the Laser Devices, and its effect is that the radiation of will send from pump light source (normally Gas lamp or semiconductor laser) converges on the working-laser material (normally laser bar, contain the pipe of gas or liquid).Laser pump cavity provides the good coupling except giving between pump light source and the working-laser material, also determines the distribution of pumping density on the working-laser material, thereby has influence on uniformity, divergence and the optical distortion of output laser beam.Usually working-laser material and pumping lamp are installed in the laser pump cavity simultaneously, and the structure of appropriate design laser pump cavity and cooling duct are the essential condition of decision laser cavity service behaviour.
In solid state laser, be extensive use of at present metal light-gathering cavity, ceramic spotlight cavity, polytetrafluoroethylene laser pump cavity etc. are arranged.Metal light-gathering cavity is to utilize the not direct reflection effect of a little high-reflectivity metal materials, at the highly reflecting films such as metallic cavity plating inner surface gold, silver of polishing, the light reflection is assembled.After long-term the use, reactions such as oxidation, corrosion can take place in metallic reflection face, cause reflection efficiency to descend, and influence the efficient of laser conversion.Ceramic spotlight cavity is to have utilized the pottery of high emissivity as the optically focused cavity, has characteristics such as high temperature resistant, corrosion-resistant.But the processing of ceramic cavity and production is difficulty relatively, and cost is higher.The long-term reflecting surface that uses can adsorb impurity, influences emission effciency.The polytetrafluoroethylene laser pump cavity then is to utilize the polytetrafluoroethylene of high density compacting as cavity, write down a kind of high diffuse reflection type laser cavity as domestic patent CN93240961.X, be characterized in the reflectivity height with the teflon resin powder compacting, corrosion-resistant, in light weight, preparation easily.Shortcoming is a non-refractory, is not suitable for using under high-power or high-octane laser.
Summary of the invention
The objective of the invention is to overcome the deficiency in the existing laser-gathering cavity, to the carrying out on the basis that technological innovation transforms of above-mentioned laser pump cavity, provide a kind of high temperature resistant, corrosion-resistant, reflection efficiency is high, cost of manufacture is relatively low and the laser-gathering cavity of long service life.
The object of the present invention is achieved like this: a kind of new pattern laser laser pump cavity, comprise left and right sides end cap, shell cavity, be provided with cooling passage in the end cap of the left and right sides, the shell cavity internal fixation is provided with a transparent quartz socket tube, form one between quartz socket tube and the shell cavity and be wrapped in quartz socket tube enclosed cavity on every side, be arranged with light source tube passage and laser bar passage in the quartz socket tube in parallel, the two ends, the left and right sides of light source tube passage and laser bar passage respectively be arranged on left and right sides end cap in cooling passage communicate, the position of corresponding light source tube passage and laser bar passage is respectively arranged with light source tube through hole and laser bar through hole on the outer face, the left and right sides of left and right sides end cap, is filled with the powder of high reflectance in the enclosed cavity that forms between shell cavity and quartz socket tube.
Preferably also be provided with the anti-ultraviolet radiation quartz ampoule in the light source tube passage; The best hacking of the outer wall of quartz socket tube is handled.As a kind of preferred version of the present utility model: in described quartz socket tube, can be provided with a laser bar passage and two light source tube passages, and the laser bar passage is arranged between two light source tube passages.
The light source tube and the laser bar that will be fit to size during use insert respectively in quartz socket tube interior the light source tube passage and laser bar passage, its two ends are individually fixed in the light source tube through hole of left and right sides end cap and the laser bar through hole and do encapsulation process, in a side end cap cooling passage, feed cooling fluid during work, the annular space of cooling fluid in light source tube passage and laser bar passage flows to opposite side and discharges, a large amount of heats that the cooling fluid that flows produces when taking away light source tube and laser bar work.
New pattern laser laser pump cavity of the present utility model is because the quartz socket tube that has adopted the materials processing of monoblock suprasil to become, in its peripheral cavity, fill the powder that parcel has high reflectance, form a diffuse reflection surface, can the radiation that Gas lamp sends be converged on working-laser material such as the laser bar equably.This structure has promptly been utilized high temperature resistant, the corrosion resistant characteristic of quartz material, has possessed the characteristic of high reflectance powder lightweight, high reflectance again, and easy to make, cost is not high yet, anti-pollution characteristic is good, longer service life.
The cooling liquid passage in the end cap passage, quartz socket tube of flowing through is taken away the unnecessary heat on Gas lamp and the working-laser material.Simultaneously because quartz socket tube has effectively completely cut off reflecting surface and cooling liquid, make reflecting surface no longer be subjected to the pollution of cooling liquid, and the good physical chemical characteristic of suprasil material makes radiation can farthest penetrate on the quartz material arrival working-laser material, and corrosion-resistant, high temperature resistant.The best hacking of the outer wall of quartz socket tube is handled and is also more helped forming uniform diffuse reflection.
Place to inlay in the light source tube passage of Gas lamp and prevent the ultraviolet special quartzy pipe that filters, to absorb light by unwanted ultraviolet band in the Gas lamp radiation.Laser cavity and quartz socket tube be by end cap seal, makes the cooling liquid pipeline of can flowing through smoothly, takes away because the heat that radiation produces.
Description of drawings
Fig. 1 is the structural representation of the utility model new pattern laser laser pump cavity;
Fig. 2 is the quartz socket tube structural representation that is provided with the anti-ultraviolet radiation quartz ampoule, and wherein: Fig. 2 a is the structure that two light source tube through holes and a laser bar through hole are set in the quartz socket tube; Fig. 2 b is the structure that a light source tube through hole and a laser bar through hole are set in the quartz socket tube.
Among the figure: 1. end cap 2. cooling passages 3. shell cavities 4. quartz socket tubes
5. light source tube passage 6. laser bar passages 7. light source tube through holes 8. laser bar through holes
9. enclosed cavity 10. anti-ultraviolet radiation quartz ampoules
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing and exemplary embodiments.
Fig. 1 shows new pattern laser laser pump cavity of the present utility model and comprises left and right sides end cap 1, shell cavity 3, be provided with cooling passage 2 in the left and right sides end cap 1, shell cavity 3 internal fixation are provided with the quartz socket tube 4 that a transparent outer wall hacking is handled, form one between quartz socket tube 4 and the shell cavity 3 and be wrapped in quartz socket tube enclosed cavity 9 on every side, be arranged with two light source tube passages 5 and a laser bar passage 6 in the quartz socket tube 4 in parallel, laser bar passage 6 is arranged in the middle of two light source tube passages 5, also be provided with anti-ultraviolet radiation quartz ampoule 10 in the light source tube passage 5, the two ends, the left and right sides of light source tube passage 5 and laser bar passage 6 respectively be arranged on left and right sides end cap 1 in cooling passage 2 communicate, the position of corresponding light source tube passage 5 and laser bar passage 6 is respectively arranged with light source tube through hole 7 and laser bar through hole 8 on the outer face, the left and right sides of left and right sides end cap 1, be filled with the powder of high reflectance in the enclosed cavity 9 that forms between shell cavity and quartz socket tube, its composition can be highly purified barium sulfate or magnesium oxide.
The light source tube and the laser bar that will be fit to size during use insert respectively in quartz socket tube interior the light source tube passage and laser bar passage, its two ends are individually fixed in the light source tube through hole of left and right sides end cap and the laser bar through hole and do encapsulation process, in a side end cap cooling passage, feed cooling fluid during work, the annular space of cooling fluid in light source tube passage and laser bar passage flows to opposite side and discharges, a large amount of heats that produce when taking away the work of light source tube and laser bar.
Claims (4)
1. new pattern laser laser pump cavity, comprise left and right sides end cap (1), shell cavity (3), be provided with cooling passage (2) in the left and right sides end cap (1), it is characterized in that: shell cavity (3) internal fixation is provided with a transparent quartz socket tube (4), form one between quartz socket tube (4) and the shell cavity (3) and be wrapped in quartz socket tube (4) enclosed cavity (9) on every side, be arranged with light source tube passage (5) and laser bar passage (6) in the quartz socket tube (4) in parallel, interior with being arranged on left and right sides end cap (1) the respectively cooling passage (2) in the two ends, the left and right sides of light source tube passage (5) and laser bar passage (6) communicates, the position of corresponding light source tube passage (5) and laser bar passage (6) is respectively arranged with light source tube through hole (7) and laser bar through hole (8) on the outer face, the left and right sides of left and right sides end cap (1), is filled with the powder of high reflectance in the enclosed cavity (9) between shell cavity (3) and quartz socket tube (4).
2. new pattern laser laser pump cavity according to claim 1 is characterized in that: also be provided with anti-ultraviolet radiation quartz ampoule (10) in described light source tube passage (5).
3. according to claim 1 or 2 described new pattern laser laser pump cavities, it is characterized in that: in described quartz socket tube (4), be provided with a laser bar passage (6) and two light source tube passages (5), and laser bar passage (6) is arranged between two light source tube passages (5).
4. new pattern laser laser pump cavity according to claim 3 is characterized in that: the outer wall of described quartz socket tube (4) is handled through hacking.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620047760 CN200969478Y (en) | 2006-11-13 | 2006-11-13 | Novel laser focusing cavity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620047760 CN200969478Y (en) | 2006-11-13 | 2006-11-13 | Novel laser focusing cavity |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200969478Y true CN200969478Y (en) | 2007-10-31 |
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ID=38969055
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620047760 Expired - Fee Related CN200969478Y (en) | 2006-11-13 | 2006-11-13 | Novel laser focusing cavity |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200969478Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103414095A (en) * | 2013-08-01 | 2013-11-27 | 中国航空工业集团公司北京航空制造工程研究所 | Laser-gathering cavity for solid laser |
-
2006
- 2006-11-13 CN CN 200620047760 patent/CN200969478Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103414095A (en) * | 2013-08-01 | 2013-11-27 | 中国航空工业集团公司北京航空制造工程研究所 | Laser-gathering cavity for solid laser |
| CN103414095B (en) * | 2013-08-01 | 2016-08-10 | 中国航空工业集团公司北京航空制造工程研究所 | A kind of laser pump cavity for solid state laser |
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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 |
Granted publication date: 20071031 Termination date: 20151113 |
|
| EXPY | Termination of patent right or utility model |