CN102946042A - Ray-gathered light gathering cavity for sunlight pump laser - Google Patents
Ray-gathered light gathering cavity for sunlight pump laser Download PDFInfo
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- CN102946042A CN102946042A CN2012103917278A CN201210391727A CN102946042A CN 102946042 A CN102946042 A CN 102946042A CN 2012103917278 A CN2012103917278 A CN 2012103917278A CN 201210391727 A CN201210391727 A CN 201210391727A CN 102946042 A CN102946042 A CN 102946042A
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Abstract
The invention discloses a ray-gathered light gathering cavity for a sunlight pump laser, and belongs to the technical field of solid lasers. The light gathering cavity is of a common conical cavity structure which can use an end pump and a side pump at the same time; a convex lens is added at the light inlet of the conical cavity to improve the effect of the end pump; and the reflecting surface of the conical cavity is made of a diffuse reflection material so as to improve the utilization rate of sunlight. Due to the design, sunlight can be further gathered and the output power of the laser is higher. The ray-gathered light gathering cavity is applicable to a sunlight pump laser system to serve as the light gathering cavity of the system.
Description
Technical field
The present invention relates to a kind of laser condenser, be specifically related to a kind of light for the sunlight pump laser and converge laser pump cavity.Belong to the solid state laser technical field.
Background technology
Existing laser pump cavity for the sunlight pump laser mainly contains the cone-shaped metal chamber, CPC etc., and its function all is that the sunlight that upper level converges is further converged.The pump mode that laser pump cavity is commonly used is end pumping and profile pump, and end pumping is very large on the power output impact.
For CPC, it is profile pump to the pumping of operation material, and therefore, the pumping effect of CPC is bad, and power output is not high; For the cone-shaped metal chamber, its pump mode is that end pumping adds profile pump, improved power output, but because its light inlet place settles is level crossing, sunlight can only parallelly enter in the chamber, and its reflecting surface mostly is the metal materials such as gold-plated, aluminium, be total reflection during work, so that sunlight is very inhomogeneous in the operation material distribution at center, chamber, so that the operation material various piece can not reach threshold value simultaneously, therefore sunlight can not be fully utilized, so the power output of laser is not high.
Therefore converge and the pumping effect for the light that improves laser pump cavity, study novel light and converge laser pump cavity, it is more even that sunlight is distributed at operation material, and operation material has more parts to reach threshold value, utilance is higher, finally makes the power output of laser higher.
Summary of the invention
In view of this, the invention provides a kind of light for the sunlight pump laser and converge laser pump cavity, the present invention uses cone-shaped cavity, by at light inlet convex lens being installed, and use diffuse-reflective material to realize converging of sunlight as the reflecting surface of cavity, thereby improve the sunlight utilance, make the power output of laser higher.
For achieving the above object, technical scheme of the present invention is:
A kind of light for the sunlight pump laser converges laser pump cavity, comprises cone-shaped cavity, and respectively there is the inside and outside discrepancy for cooling water of a mouth UNICOM cone-shaped cavity at the two ends of cone-shaped cavity, are fixed with the rod-shaped laser operation material on the cone-shaped cavity axis line inside.
This light converges laser pump cavity and also comprises convex lens, and convex lens are placed in cone-shaped cavity light inlet place;
Wherein the interior reflective surface of cone-shaped cavity adopts diffuse-reflective material.
Beneficial effect:
1, the present invention is conical cavity, has utilized simultaneously end pumping and profile pump, and by adding lens at light inlet, can further converge the incident sunlight, has improved the end pumping effect, has improved the power output of laser.
2, the present invention uses diffuse-reflective material to make the distribution of light on operation material more even as the reflecting surface of cone-shaped cavity, thereby makes the utilance of sunlight higher, and the power output of laser is higher.
Description of drawings
Fig. 1 is basic structure schematic diagram of the present invention.
Fig. 2 simulates respectively the gold-plated chamber of same size and the diffuse-reflective cavity light distribution situation along axis direction on operation material with Tracepro software.(a) being the light distribution of diffuse-reflective cavity, (b) is the light distribution in gold-plated chamber.Wherein the x axle of coordinate represents the position on the bar-shaped operation material, and wherein establishing bar-shaped operation material is the temperature that 0, y axle represents bar-shaped operation material near an end position of light inlet.
Embodiment
The invention provides a kind of light for the sunlight pump laser and converge laser pump cavity, this laser pump cavity uses cone-shaped cavity structure commonly used, cone-shaped cavity can utilize end pumping and profile pump simultaneously, the present invention increases convex lens at the light inlet place of cone-shaped cavity, has improved the end pumping effect; Cone-shaped cavity uses diffuse-reflective material as the reflecting surface of cavity, thereby improves the sunlight utilance.Above design of the present invention can realize further converging of sunlight, makes the power output of laser higher.The present invention is applicable to sunlight pump laser system, as the laser pump cavity of system.
Below in conjunction with the accompanying drawing embodiment that develops simultaneously, describe the present invention.
Present embodiment uses cone-shaped cavity, and its structure as shown in Figure 1.
A kind of light for the sunlight pump laser in the present embodiment converges laser pump cavity, comprises cone-shaped cavity (1), convex lens (2);
Cone-shaped cavity (1) comprises reflecting surface (5), working-laser material (6), delivery port (3), water inlet (4); The profile of cone-shaped cavity (1) is cuboid, and conical cavity is offered in cuboid inside, taper high in the length of cuboid, and the bottom surface of taper is the light inlet of cone-shaped cavity; Respectively there is the inside and outside discrepancy for cooling water of a mouth UNICOM cone-shaped cavity at the two ends of cone-shaped cavity, and wherein the mouth near the taper bottom surface is delivery port (3), and the mouth of close conial vertex is delivery port (4); Working-laser material (6) is bar-shaped material, be fixed on the axis of the taper that hollows out, bar-shaped working-laser material (6) runs through cone-shaped cavity, and the one end is near the cone-shaped cavity light inlet, the other end can lean out from the place, summit of taper, also can keep concordant with the bottom surface of cuboid profile;
The improvement that present embodiment is done above-mentioned cone-shaped cavity comprises:
Settle convex lens (2) at cone-shaped cavity (1) light inlet place;
Cone-shaped cavity (1) interior reflective surface (5) adopts diffuse-reflective material, and selected diffuse-reflective material is pottery in the present embodiment.
Sunlight enters by light inlet in the experimentation, and the convex lens of settling at the light inlet place can reach the effect that large sunlight is converged again, and solar energy is concentrated on the bar-shaped working-laser material more, have strengthened the sunlight of end pumping; The inner surface of cone-shaped cavity is diffuse-reflective material, is diffuse reflection so sunlight is incident to cone-shaped cavity reflection mode afterwards, so just so that the distribution of sunlight on operation material is more even, has more parts to reach threshold value and Emission Lasers.
Fig. 2 simulates respectively the gold-plated chamber of same size and diffuse-reflective cavity in the upper light distribution situation along axis direction of bar-shaped operation material (6) with Tracepro software, uses the temperature on the bar-shaped operation material (6) to represent light intensity among the figure.Can find out that the distribution of light intensity in diffuse-reflective cavity is more even than gold-plated chamber.Contrast draws under identical sunlight power by experiment, and the maximum laser power output that the gold-plated chamber of same size obtains is 10W, and the maximum laser power output that the present invention obtains is 18.5W.
In sum, more than be preferred embodiment of the present invention only, be not for limiting protection scope of the present invention.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (1)
1. a light that is used for the sunlight pump laser converges laser pump cavity, comprise cone-shaped cavity (1), respectively there is the inside and outside discrepancy for cooling water of a mouth UNICOM cone-shaped cavity at the two ends of cone-shaped cavity (1), be fixed with rod-shaped laser operation material (6) on the cone-shaped cavity axis line inside, it is characterized in that:
Described light converges laser pump cavity and also comprises convex lens (2), and convex lens (2) are placed in cone-shaped cavity (1) light inlet place;
The interior reflective surface (5) of described cone-shaped cavity (1) adopts diffuse-reflective material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103917278A CN102946042A (en) | 2012-10-16 | 2012-10-16 | Ray-gathered light gathering cavity for sunlight pump laser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103917278A CN102946042A (en) | 2012-10-16 | 2012-10-16 | Ray-gathered light gathering cavity for sunlight pump laser |
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| CN102946042A true CN102946042A (en) | 2013-02-27 |
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| CN2012103917278A Pending CN102946042A (en) | 2012-10-16 | 2012-10-16 | Ray-gathered light gathering cavity for sunlight pump laser |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103674914A (en) * | 2013-12-10 | 2014-03-26 | 河北先河环保科技股份有限公司 | Nitrogen oxide detector and small automatic nitrogen oxide monitoring device using detector |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101404377A (en) * | 2008-10-31 | 2009-04-08 | 福州高意通讯有限公司 | Optical fiber laser |
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2012
- 2012-10-16 CN CN2012103917278A patent/CN102946042A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101404377A (en) * | 2008-10-31 | 2009-04-08 | 福州高意通讯有限公司 | Optical fiber laser |
Non-Patent Citations (1)
| Title |
|---|
| 罗萍萍，等: "使用菲涅耳透镜的太阳光抽运Nd:YAG激光器", 《中国激光》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103674914A (en) * | 2013-12-10 | 2014-03-26 | 河北先河环保科技股份有限公司 | Nitrogen oxide detector and small automatic nitrogen oxide monitoring device using detector |
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Application publication date: 20130227 |