CN204203548U - Reflective ultra-short pulse laser power continuous regulator - Google Patents
Reflective ultra-short pulse laser power continuous regulator Download PDFInfo
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- CN204203548U CN204203548U CN201420765659.1U CN201420765659U CN204203548U CN 204203548 U CN204203548 U CN 204203548U CN 201420765659 U CN201420765659 U CN 201420765659U CN 204203548 U CN204203548 U CN 204203548U
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- short pulse
- pulse laser
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- laser power
- catoptron
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Abstract
Reflective ultra-short pulse laser power continuous regulator, relates to pulse laser and regulates field.The utility model be in order to solve existing method ultra-short pulse laser power is regulated time, the problem of the peak power of pulse can be reduced.Reflective ultra-short pulse laser power continuous regulator described in the utility model, the reflecting surface of catoptron and wedge-shaped mirrors is parallel to each other, and the hole of two variable orifices diaphragms is just right; Incident laser reflexes to wedge-shaped mirrors through catoptron, and the laser of the upper surface reflection of wedge-shaped mirrors is successively through two variable orifices diaphragms.The catoptron utilizing reflecting surface to be parallel to each other and wedge-shaped mirrors form total reflection structure, make the laser emitting direction of adjustment identical with incident direction, both the peak power that the broadening of pulse can not have been brought to cause reduces, also can not affect the direction of light beam, and the continuous adjustment of laser power between the 5%-80% of incident power can be realized.The utility model is applicable to regulate ultra-short pulse laser power.
Description
Technical field
The utility model relates to pulse laser and regulates field.
Background technology
When the power for continuous laser regulates, the metal film of different-thickness on attenuator or polaroid plated surface generally can be adopted to realize, but then can not adopt above-mentioned two class components for the continuous adjustment of ultra-short pulse laser power.Main cause has following two aspects:
High peak power will bring damage to element;
The dispersion that the element of transmission-type brings will stretched pulse, reduces the peak power of pulse.
Utility model content
The utility model be in order to solve utilize above-mentioned existing method to regulate ultra-short pulse laser power time, the problem of the peak power of pulse can be reduced, reflective ultra-short pulse laser power continuous regulator is now provided.
Reflective ultra-short pulse laser power continuous regulator, comprises following two kinds of structures:
The first structure comprises: catoptron, wedge-shaped mirrors and two variable orifices diaphragms;
The reflecting surface of catoptron and wedge-shaped mirrors is parallel to each other, and the hole of two variable orifices diaphragms is just right;
Incident laser reflexes to wedge-shaped mirrors through catoptron, and the laser of the upper surface reflection of wedge-shaped mirrors is successively through two variable orifices diaphragms.
The second structure comprises: catoptron, glass plate and two variable orifices diaphragms;
The reflecting surface of catoptron and glass plate is parallel to each other, and the hole of two variable orifices diaphragms is just right;
Incident laser reflexes to glass plate through catoptron, and the laser of the upper surface reflection of glass plate is successively through two variable orifices diaphragms.
The hole diameter of two variable orifices diaphragms in above-mentioned two kinds of structures is between 1mm to 4mm.
Distance between two variable orifices diaphragms in above-mentioned two kinds of structures is greater than 10cm.
Catoptron in above-mentioned two kinds of structures is silvered mirror.
Wedge-shaped mirrors in the first structure above-mentioned is k9 glass wedge-shaped mirrors.
Also comprise in the first structure above-mentioned: two universal stages; Catoptron and wedge-shaped mirrors are vertically fixed on two universal stages respectively.
Also comprise in the first structure above-mentioned: translation stage; Wedge-shaped mirrors and two variable orifices diaphragms all slide and are fixed on translation stage
In above-mentioned the second structure, glass plate is k9 glass plate
Also comprise in above-mentioned the second structure: two universal stages; Catoptron and glass plate are vertically fixed on two universal stages respectively.
Also comprise in above-mentioned the second structure: translation stage; Glass plate and two variable orifices diaphragms all slide and are fixed on translation stage.
Reflective ultra-short pulse laser power continuous regulator described in the utility model, the catoptron utilizing reflecting surface to be parallel to each other and wedge-shaped mirrors form total reflection structure, make the laser emitting direction of adjustment identical with incident direction, both the peak power that the broadening of pulse can not have been brought to cause reduces, also can not affect the direction of light beam, and the continuous adjustment of laser power between the 5%-80% of incident power can be realized.The utility model is applicable to regulate ultra-short pulse laser power.
Accompanying drawing explanation
Fig. 1 is the structural representation of the reflective ultra-short pulse laser power continuous regulator described in embodiment one;
Fig. 2 is the structural representation of the reflective ultra-short pulse laser power continuous regulator described in embodiment eight.
Embodiment
Embodiment one: illustrate present embodiment, the reflective ultra-short pulse laser power continuous regulator described in present embodiment with reference to Fig. 1, it comprises: catoptron 1, wedge-shaped mirrors 2 and two variable orifices diaphragms 3;
The reflecting surface of catoptron 1 and wedge-shaped mirrors 2 is parallel to each other, and the hole of two variable orifices diaphragms 3 is just right;
Incident laser reflexes to wedge-shaped mirrors 2 through catoptron 1, and the laser of the upper surface reflection of wedge-shaped mirrors 2 is successively through two variable orifices diaphragms 3.
Reflective ultra-short pulse laser power continuous regulator described in present embodiment, the catoptron 1 utilizing reflecting surface to be parallel to each other and wedge-shaped mirrors 2, ensure that the laser emitting direction of regulator is identical with incident direction.Wedge-shaped mirrors 2 receives the laser that catoptron 1 reflects, this laser beam splitter is reflected light and transmitted light by wedge-shaped mirrors 2 upper surface, the lower surface of wedge-shaped mirrors 2 by this transmitted light again beam splitting be reflected light and transmitted light, such use wedge-shaped mirrors 2 can make the reflected light on upper and lower surface spatially be separated, and then the interference that multiple-beam interference can be avoided to bring.The laser of the upper surface reflection of wedge-shaped mirrors 2, successively through two variable orifices diaphragms 3, determines the principle of straight line by 2, utilize diaphragm to ensure the collimation of light path.
When practical application, according to fresnel formula, intensity reflectance being changed significantly with incident angle of s polarized light, therefore utilizes wave plate or other polarizers to regulate and incides the polarization state of incident light of the present utility model for s polarization.Continuously change the incident angle of incident ray, then the incident angle consecutive variations of incident ray on wedge-shaped mirrors, intensity reflectance also consecutive variations thereupon, and then complete the continuous adjustment of power.
Embodiment two: present embodiment is described further the reflective ultra-short pulse laser power continuous regulator described in embodiment one, and in present embodiment, the hole diameter of described two variable orifices diaphragms 3 is between 1mm to 4mm.
Embodiment three: present embodiment is described further the reflective ultra-short pulse laser power continuous regulator described in embodiment one, and in present embodiment, the distance between described two variable orifices diaphragms 3 is greater than 10cm.
Embodiment four: present embodiment is described further the reflective ultra-short pulse laser power continuous regulator described in embodiment one, and in present embodiment, catoptron 1 is silvered mirror.
Embodiment five: present embodiment is described further the reflective ultra-short pulse laser power continuous regulator described in embodiment one, and in present embodiment, wedge-shaped mirrors 2 is k9 glass wedge-shaped mirrors.
Because the refractive index of material is larger, the range of adjustment of reflective ultra-short pulse laser power continuous regulator is larger.In present embodiment, adopt k9 glass wedge-shaped mirrors, the continuous adjustment of luminous power between 5%-80% can be realized to 800nm light beam.K9 glass wedge-shaped mirrors can bear the impact of high peak power simultaneously, reduces element damage rate.
Embodiment six: present embodiment is described further the reflective ultra-short pulse laser power continuous regulator described in embodiment one, two, three, four or five, and in present embodiment, it also comprises: two universal stages; Catoptron 1 and wedge-shaped mirrors 2 are vertically fixed on two universal stages respectively.
Present embodiment adds two universal stages, when practical application, catoptron 1 and wedge-shaped mirrors 2 is separately fixed on two universal stages, and ensure that the minute surface of two mirrors is vertical with universal stage table top, convenient operation person regulates the angle of two mirrors.By the adjustment of universal stage, catoptron 1 is parallel with the reflecting surface of wedge-shaped mirrors 2, ensures that light beam is identical with incident direction after both.
Embodiment seven: present embodiment is described further the reflective ultra-short pulse laser power continuous regulator described in embodiment one, two, three, four or five, and in present embodiment, it also comprises: translation stage; Wedge-shaped mirrors 2 and two variable orifices diaphragms 3 all slide and are fixed on translation stage.
Present embodiment adds translation stage, and wedge-shaped mirrors 2 and two variable orifices diaphragms 3 all slide and are fixed on translation stage, wedge-shaped mirrors 2 and two variable orifices diaphragms 3 all can be slided on translation stage is horizontal and vertical, be easier to the position that operator regulates each element.
Embodiment eight: illustrate present embodiment, the reflective ultra-short pulse laser power continuous regulator described in present embodiment with reference to Fig. 2, it comprises: catoptron 1, glass plate 4 and two variable orifices diaphragms 3;
The reflecting surface of catoptron 1 and glass plate 4 is parallel to each other, and the hole of two variable orifices diaphragms 3 is just right;
Incident laser reflexes to glass plate 4 through catoptron 1, and the laser of the upper surface reflection of glass plate 4 is successively through two variable orifices diaphragms 3.
Embodiment nine: present embodiment is described further the reflective ultra-short pulse laser power continuous regulator described in embodiment eight, and in present embodiment, the hole diameter of described two variable orifices diaphragms 3 is between 1mm to 4mm.
Embodiment ten: present embodiment is described further the reflective ultra-short pulse laser power continuous regulator described in embodiment eight, and in present embodiment, the distance between described two variable orifices diaphragms 3 is greater than 10cm.
Embodiment 11: present embodiment is described further the reflective ultra-short pulse laser power continuous regulator described in embodiment eight, and in present embodiment, catoptron 1 is silvered mirror.
Embodiment 12: present embodiment is described further the reflective ultra-short pulse laser power continuous regulator described in embodiment eight, and in present embodiment, glass plate 4 is k9 glass plate.
Embodiment 13: present embodiment is described further the reflective ultra-short pulse laser power continuous regulator described in embodiment eight, and in present embodiment, it also comprises: two universal stages; Catoptron 1 and glass plate 4 are vertically fixed on two universal stages respectively.
Embodiment 14: present embodiment is described further the reflective ultra-short pulse laser power continuous regulator described in embodiment eight, and in present embodiment, it also comprises: translation stage; Glass plate 4 and two variable orifices diaphragms 3 all slide and are fixed on translation stage.
Claims (10)
1. reflective ultra-short pulse laser power continuous regulator, it is characterized in that, it comprises: catoptron (1), wedge-shaped mirrors (2) and two variable orifices diaphragms (3);
The reflecting surface of catoptron (1) and wedge-shaped mirrors (2) is parallel to each other, and the hole of two variable orifices diaphragms (3) is just right;
Incident laser reflexes to wedge-shaped mirrors (2) through catoptron (1), and the laser of the upper surface reflection of wedge-shaped mirrors (2) is successively through two variable orifices diaphragms (3).
2. reflective ultra-short pulse laser power continuous regulator according to claim 1, is characterized in that, the hole diameter of described two variable orifices diaphragms (3) is between 1mm to 4mm.
3. reflective ultra-short pulse laser power continuous regulator according to claim 1, is characterized in that, the distance between described two variable orifices diaphragms (3) is greater than 10cm.
4. reflective ultra-short pulse laser power continuous regulator according to claim 1, it is characterized in that, catoptron (1) is silvered mirror.
5. reflective ultra-short pulse laser power continuous regulator according to claim 1, is characterized in that, wedge-shaped mirrors (2) is k9 glass wedge-shaped mirrors.
6. the reflective ultra-short pulse laser power continuous regulator according to claim 1,2,3,4 or 5, it is characterized in that, it also comprises: two universal stages; Catoptron (1) and wedge-shaped mirrors (2) are vertically fixed on two universal stages respectively.
7. reflective ultra-short pulse laser power continuous regulator according to claim 1, it is characterized in that, it also comprises: translation stage; Wedge-shaped mirrors (2) and two variable orifices diaphragms (3) are all slided and are fixed on translation stage.
8. reflective ultra-short pulse laser power continuous regulator, it is characterized in that, it comprises: catoptron (1), glass plate (4) and two variable orifices diaphragms (3);
The reflecting surface of catoptron (1) and glass plate (4) is parallel to each other, and the hole of two variable orifices diaphragms (3) is just right;
Incident laser reflexes to glass plate (4) through catoptron (1), and the laser of the upper surface reflection of glass plate (4) is successively through two variable orifices diaphragms (3).
9. reflective ultra-short pulse laser power continuous regulator according to claim 8, it is characterized in that, it also comprises: two universal stages; Catoptron (1) and glass plate (4) are vertically fixed on two universal stages respectively.
10. reflective ultra-short pulse laser power continuous regulator according to claim 8, it is characterized in that, it also comprises: translation stage; Glass plate (4) and two variable orifices diaphragms (3) are all slided and are fixed on translation stage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420765659.1U CN204203548U (en) | 2014-12-08 | 2014-12-08 | Reflective ultra-short pulse laser power continuous regulator |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420765659.1U CN204203548U (en) | 2014-12-08 | 2014-12-08 | Reflective ultra-short pulse laser power continuous regulator |
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|---|---|
| CN204203548U true CN204203548U (en) | 2015-03-11 |
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| CN201420765659.1U Expired - Fee Related CN204203548U (en) | 2014-12-08 | 2014-12-08 | Reflective ultra-short pulse laser power continuous regulator |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106274074A (en) * | 2016-07-21 | 2017-01-04 | 武汉锐科光纤激光技术股份有限公司 | A kind of light beam accurate-location device and localization method |
-
2014
- 2014-12-08 CN CN201420765659.1U patent/CN204203548U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106274074A (en) * | 2016-07-21 | 2017-01-04 | 武汉锐科光纤激光技术股份有限公司 | A kind of light beam accurate-location device and localization method |
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Legal Events
| Date | Code | Title | Description |
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| 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: 20150311 Termination date: 20151208 |
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| EXPY | Termination of patent right or utility model |