CN201194309Y - Laser crystal of high comprehensive performance - Google Patents
Laser crystal of high comprehensive performance Download PDFInfo
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- CN201194309Y CN201194309Y CNU2008200630203U CN200820063020U CN201194309Y CN 201194309 Y CN201194309 Y CN 201194309Y CN U2008200630203 U CNU2008200630203 U CN U2008200630203U CN 200820063020 U CN200820063020 U CN 200820063020U CN 201194309 Y CN201194309 Y CN 201194309Y
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Abstract
The utility model discloses a high comprehensive property laser crystal, belonging to the field of solid laser technology. The high comprehensive property laser crystal comprises a rod-like laser crystal, the two end cylindrical surfaces of the rod-like laser crystal are provided with high thermal conductivity radiating coating layers, the non-coating cylindrical surfaces of the rod-like laser crystal have screw threads or evenly distributed rings. The utility model overcomes the turbulent flow in water cooling, solves the cooling problem of non-water cooled part, and increases the surface of the laser crystal, thus greatly improving the radiation of the laser crystal, and enhancing the uniformity of pumping and the beam quality. Under the same condition, experiments show that the high comprehensive property laser crystal has output power increased by 15% and thermal performance improved by more than 20%, and realizes high-density even non-damaged pumping.
Description
Technical field
The utility model relates to the Solid State Laser technical field.
Background technology
Neodymium-doped, yttrogarnet series laser crystal have good laser and physicochemical properties, are the solid state laser gain media that is most widely used at present.Because the quantum efficiency of this crystalloid is little, when a large amount of heats that nonradiative transition produces are propagated, can produces thermal lensing effect in gain media, thereby reduce lasing efficiency and laser beam quality; Performance is more outstanding in the high average power solid laser device especially.
In order to remedy or to reduce this thermal effect, people such as R..Weber proposed the composite construction at the pure YAG crystal of Nd:YAG laser bar two ends thermal bonding in 1998; People such as D.Ehrentraut in 2002 have reported with improved czochralski method in pure YAG pipe growth inside Yb doped YAG (Journal of Crystal the 242nd phase of Growth, 2002 years the 375th page); People such as Xu Jun proposed resistance heating epitaxial growth composite Y AG/Nd:YAG/YAG in 2003, and pure YAG crystal is absorptive pumping light or oscillation light not, can effectively cool off gain media, reduced thermal effect and thermal lensing effect; Yet, adopt above-mentioned prior art composite laser material, significant disadvantages is arranged: the composite laser material that (1) forms by thermal bonding, owing to there is significantly boundary between pure crystal and doped crystal, optical loss is big; As long-time running, the bonding face place is yielding, can reduce the beam quality of laser output and laser on the contrary; Technology repeatability is lower, and life cycle of the product is long, cost is high; (2) composite crystal that adopts improvement czochralski method, resistance heating epitaxial growth method etc. to grow, crystal mass is poor, has defectives such as a large amount of bubbles and wrappage, and repeatability is low, does not obtain practical application so far in device.
The utility model content
The purpose of this utility model is: a kind of high combination property laser crystal is provided, and it has solved the heat dissipation problem of laser crystal in high-average power (more than the KW level) solid state laser well; Improve laser beam quality simultaneously, improved efficient; And simple in structure, cost of manufacture is low, the high combination property laser crystal of be fit to producing in batches.
The technical solution of the utility model is: a kind of high combination property laser crystal, comprise the rod-shaped laser crystal, rod-shaped laser crystal two ends periphery is provided with the overlay of high thermal conductivity heat radiation material, this overlay is 5～10mm from the axial length of end face, overlay thickness is 0.01～0.2mm, and uncoated part periphery is screw thread or equally distributed loop configuration on the rod-shaped laser crystal, wherein, screw thread or loop configuration spacing are 0.2～3.0mm, and the degree of depth is 0.05～0.3mm.
Rod-shaped laser crystal described in the utility model comprise Nd:YAG, (Nd, Ce): YAG, (Nd, Ce, Tb): YAG, (Cr, Tm, Ho): YAG, (Tm, Ho): any one matrix among YAG, Ho:YAG, Er:YAG, Yb:YAG, Nd:GGG, Yb:GGG, the Nd:YAP.
High thermal conductivity heat radiation material described in the utility model is gold, silver, copper or diamond.Also can adopt other high thermal conductivity heat radiation material.
The beneficial effects of the utility model are: the screw thread of laser crystal cylinder or annular micro-structural, not only overcome the turbulent flow in the water cooling, improved the uniformity of pumping, and increased the surface area of laser crystal, it is about 15% to improve laser output power, and has increased the heat radiation of cylinder; The heat radiation material of the high thermal conductivity of (5～10) mm at laser crystal two ends has improved the heat radiation of laser crystal greatly, improves beam quality.Through test, under equal conditions, adopt high combination property laser crystal will reach more than 20% to the improvement of hot property, realized high density uniform pumping not damaged.
Below in conjunction with the drawings and specific embodiments the utility model is further specified.
Description of drawings
Fig. 1 is the structural representation of the utility model embodiment 1;
Fig. 2 is the A place partial enlarged drawing of Fig. 1;
Fig. 3 is the structural representation of the utility model embodiment 2;
Fig. 4 is the B place partial enlarged drawing of Fig. 2;
Reference numeral: 1 is the rod-shaped laser crystal, and 2 is overlay, and 3 is helicitic texture, and 4 is loop configuration.
Embodiment
Embodiment 1
As Fig. 1, shown in Figure 2, a kind of high combination property laser crystal, comprise and contain Nd:YAG, (Nd, Ce): YAG, (Nd, Ce, Tb): YAG, (Cr, Tm, Ho): YAG, (Tm, Ho): YAG, Ho:YAG, Er:YAG, Yb:YAG, Nd:GGG, Yb:GGG, the rod-shaped laser crystal 1 of any one matrix among the Nd:YAP, rod-shaped laser crystal 1 two ends periphery is provided with the overlay 2 of high thermal conductivity heat radiation material, and the axial length L from end face of this overlay 2 is 5～10mm, and overlay 2 thickness H are 0.01～0.2mm, part periphery uncoated on the rod-shaped laser crystal is helicitic texture, wherein, flight pitch 1 is 0.2～3.0mm, and degree of depth h is 0.05～0.3mm.The high thermal conductivity heat radiation material of present embodiment adopts gold.
As Fig. 3, shown in Figure 4, a kind of high combination property laser crystal, comprise and contain Nd:YAG, (Nd, Ce): YAG, (Nd, Ce, Tb): YAG, (Cr, Tm, Ho): YAG, (Tm, Ho): YAG, Ho:YAG, Er:YAG, Yb:YAG, Nd:GGG, Yb:GGG, the rod-shaped laser crystal 1 of any one matrix among the Nd:YAP, rod-shaped laser crystal 1 two ends periphery is provided with the overlay 2 of high thermal conductivity heat radiation material, and the axial length L from end face of this overlay 2 is 5～10mm, and overlay 2 thickness H are 0.01～0.2mm, uncoated part periphery structure ringwise on the rod-shaped laser crystal, wherein, loop configuration spacing 1 is 0.2～3.0mm, and degree of depth h is 0.05～0.3mm.The high thermal conductivity heat radiation material of present embodiment adopts copper.
A kind of high combination property laser crystal, comprise and contain Nd:YAG, (Nd, Ce): YAG, (Nd, Ce, Tb): YAG, (Cr, Tm, Ho): YAG, (Tm, Ho): YAG, Ho:YAG, Er:YAG, Yb:YAG, Nd:GGG, Yb:GGG, the rod-shaped laser crystal 1 of any one matrix among the Nd:YAP, rod-shaped laser crystal 1 two ends periphery is provided with the overlay 2 of high thermal conductivity heat radiation material, the axial length L from end face of this overlay 2 is 10mm, and overlay 2 thickness H are 0.2mm, and part periphery uncoated on the rod-shaped laser crystal is helicitic texture, wherein, flight pitch 1 is 3.0mm, and degree of depth h is 0.3mm, and the high thermal conductivity heat radiation material of present embodiment adopts silver.Same Fig. 1 of high combination property laser crystal structure of present embodiment, shown in Figure 2.
Embodiment 4
A kind of high combination property laser crystal, comprise and contain NNd:YAG, (Nd, Ce): YAG, (Nd, Ce, Tb): YAG, (Cr, Tm, Ho): YAG, (Tm, Ho): YAG, Ho:YAG, Er:YAG, Yb:YAG, Nd:GGG, Yb:GGG, the rod-shaped laser crystal 1 of any one matrix among the Nd:YAP, rod-shaped laser crystal 1 two ends periphery is provided with the overlay 2 of high thermal conductivity heat radiation material, the axial length L from end face of this overlay 2 is 5mm, and overlay 2 thickness H are 0.01mm, uncoated part periphery structure ringwise on the rod-shaped laser crystal, wherein, loop configuration spacing 1 is 0.2mm, and degree of depth h is 0.05mm, and the high thermal conductivity heat radiation material of present embodiment adopts diamond.Same Fig. 3 of high combination property laser crystal structure of present embodiment, shown in Figure 4.
Need to prove: though the foregoing description has been described structure of the present utility model in detail; but the utility model is not limited to the foregoing description; the replacement structure that every those skilled in the art just can expect without creative work from the foregoing description all belongs to protection range of the present utility model.
Claims (3)
1. high combination property laser crystal, comprise rod-shaped laser crystal (1), it is characterized in that: rod-shaped laser crystal (1) two ends periphery is provided with the overlay (2) of high thermal conductivity heat radiation material, this overlay (2) is 5～10mm from the axial length of end face, overlay (2) thickness is 0.01～0.2mm, uncoated part periphery is screw thread or equally distributed loop configuration on the rod-shaped laser crystal, wherein, screw thread or loop configuration spacing are 0.2～3.0mm, and the degree of depth is 0.05～0.3mm.
2. high combination property laser crystal according to claim 1, it is characterized in that: described rod-shaped laser crystal (1) comprises Nd:YAG, (Nd, Ce): YAG, (Nd, Ce, Tb): YAG, (Cr, Tm, Ho): YAG, (Tm, Ho): any one matrix among YAG, Ho:YAG, Er:YAG, Yb:YAG, Nd:GGG, Yb:GGG, the Nd:YAP.
3. high combination property laser crystal according to claim 1 and 2 is characterized in that: described high thermal conductivity heat radiation material is gold, silver, copper or diamond.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200630203U CN201194309Y (en) | 2008-04-17 | 2008-04-17 | Laser crystal of high comprehensive performance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200630203U CN201194309Y (en) | 2008-04-17 | 2008-04-17 | Laser crystal of high comprehensive performance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201194309Y true CN201194309Y (en) | 2009-02-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNU2008200630203U Expired - Lifetime CN201194309Y (en) | 2008-04-17 | 2008-04-17 | Laser crystal of high comprehensive performance |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101312285B (en) * | 2008-04-17 | 2011-01-26 | 成都东骏激光股份有限公司 | High combination property laser crystal and method for making same |
| CN102108553A (en) * | 2010-12-31 | 2011-06-29 | 湖南稀土金属材料研究院 | Laser crystal, growth device and method thereof and laser working element prepared from crystal |
| CN102362399A (en) * | 2009-03-23 | 2012-02-22 | 皇家飞利浦电子股份有限公司 | Optically pumped solid-state laser and lighting system comprising said solid-state laser |
| CN110799877A (en) * | 2017-04-24 | 2020-02-14 | 亮锐控股有限公司 | High brightness light conversion device |
| CN116269742A (en) * | 2023-05-23 | 2023-06-23 | 可孚医疗科技股份有限公司 | Depilatory instrument cold compress structure and manufacturing method |
-
2008
- 2008-04-17 CN CNU2008200630203U patent/CN201194309Y/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101312285B (en) * | 2008-04-17 | 2011-01-26 | 成都东骏激光股份有限公司 | High combination property laser crystal and method for making same |
| CN102362399A (en) * | 2009-03-23 | 2012-02-22 | 皇家飞利浦电子股份有限公司 | Optically pumped solid-state laser and lighting system comprising said solid-state laser |
| CN102362399B (en) * | 2009-03-23 | 2014-05-07 | 皇家飞利浦电子股份有限公司 | Optically pumped solid-state laser and lighting system comprising said solid-state laser |
| CN102108553A (en) * | 2010-12-31 | 2011-06-29 | 湖南稀土金属材料研究院 | Laser crystal, growth device and method thereof and laser working element prepared from crystal |
| CN110799877A (en) * | 2017-04-24 | 2020-02-14 | 亮锐控股有限公司 | High brightness light conversion device |
| CN110799877B (en) * | 2017-04-24 | 2022-07-08 | 亮锐控股有限公司 | High brightness light conversion device |
| CN116269742A (en) * | 2023-05-23 | 2023-06-23 | 可孚医疗科技股份有限公司 | Depilatory instrument cold compress structure and manufacturing method |
| CN116269742B (en) * | 2023-05-23 | 2023-09-08 | 可孚医疗科技股份有限公司 | Depilatory instrument cold compress structure and manufacturing method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20090211 Effective date of abandoning: 20080417 |