CN100456579C - End-pumped plates laser technique - Google Patents
End-pumped plates laser technique Download PDFInfo
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- CN100456579C CN100456579C CNB2007101189608A CN200710118960A CN100456579C CN 100456579 C CN100456579 C CN 100456579C CN B2007101189608 A CNB2007101189608 A CN B2007101189608A CN 200710118960 A CN200710118960 A CN 200710118960A CN 100456579 C CN100456579 C CN 100456579C
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- mirror
- gain media
- pump light
- laser
- lath
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Abstract
This invention relates to an end side pump batten laser technology characterizing that the output beams of a laser diode array are focused to enter into a batten gain medium after passing through a pump coupling system, in which, the focal point is out of the gain medium, namely, pump light enters into gain medium in a divergence way, and the thickness of the medium is no longer equal but changed steadily and two big faces are polished. Pump light is distributed uniformly in the batten after total inner reflection and combined with a stable/non-stable mixed cavity to get output laser of high power, high efficiency and high beam quality, which is suitable for lasers of high power output and thermo stable operation or high power amplifiers.
Description
Invention field
The present invention relates to a kind of end pumping slab laser device, belong to laser technology field.
Technical background
End face part pump bar gain media is a kind of important method that obtains high efficiency, high power, the output of high light beam quality laser in conjunction with stable/astable hybrid chamber.This device adopts two big face heat radiations; Oscillating laser straight-line pass gain media.This part end pumping mode, generally be pump light to be focused into sheet incide in the lath medium, form the heavy pumping district in lath medium central authorities like this, on the direction vertical with the pumping line, very big temperature gradient will be formed, under the certain situation of gain media size, the increase of I/O power there is bigger restriction.
Summary of the invention
The objective of the invention is at all solid state slab laser device, adopt a kind of novel battened construction, can make higher pump power be coupled into the lath medium, and on lath small size direction, pump light is more near evenly distributing, therefore thereby laser gain is also even relatively, reduces the temperature gradient in this direction, helps importing, the raising of power output.Simultaneously, can be in conjunction with stable/astable hybrid chamber, to obtain the laser output of high power, high efficiency, high light beam quality.
The objective of the invention is to be achieved through the following technical solutions: the present invention includes pump light, input mirror, lath gain media, outgoing mirror.The output beam of laser diode array focuses on and enters the lath gain media behind pumping coupling system, and focus is in the gain media outside, and promptly pump light enters gain media with the form of dispersing.
The thickness of lath gain media changes gradually along optical direction, two big faces be end face with two bigger mirror polish of outer area, utilize total internal reflection that pump light is distributed in the gain media uniformly.Two big faces contact with heat sink, pass through heat conducting and radiating.
Described input mirror is level crossing or spherical mirror or cylindrical mirror.
Described outgoing mirror is level crossing or spherical mirror or cylindrical mirror.
Advantage of the present invention is: the present invention is a kind of novel all solid state slab laser, pump light forms in lath more uniformly by total internal reflection and distributes, in conjunction with stable/astable hybrid chamber, to obtain the laser output of high power, high efficiency, high light beam quality.The present invention is particularly useful for laser and the heat steady operation laser or the high power amplifier of high power output.
Description of drawings
Fig. 1-part end pumping slab laser schematic diagram (lateral plan), wherein: 1-pump light, 2-input mirror, 3-lath gain media, 4-outgoing mirror;
Fig. 2-end pumping slab laser schematic diagram (lateral plan), wherein: the 1-pump light, the 2-input mirror (can be a level crossing, also can be spherical mirror, or cylindrical mirror), 3-lath gain media, 4-outgoing mirror (can be level crossing, also can be spherical mirror, or cylindrical mirror);
Fig. 3-steady resonator end surface pump bar laser schematic diagram (vertical view 1), wherein: the 1-pump light, the 2-input mirror (can be a level crossing, also can be spherical mirror, or cylindrical mirror), 3-lath gain media, 4-outgoing mirror (can be level crossing, also can be spherical mirror, or cylindrical mirror);
Fig. 4-steady chamber/just propping up unsteady cavity hybrid chamber laser diode array end pumping slab laser schematic diagram (vertical view 2), wherein: the 1-pump light, the 2-input mirror (can be spherical mirror, or cylindrical mirror), 3-lath gain media, 4-outgoing mirror (being cylindrical mirror);
A Fig. 5-steady chamber/negative unsteady cavity hybrid chamber laser diode array end pumping slab laser schematic diagram (vertical view 2), wherein: 1-pump light, 2-input mirror (spherical mirror), 3-lath gain media, 4-outgoing mirror (being spherical mirror).
Embodiment
The invention will be further described below in conjunction with drawings and Examples.
Embodiment
Steady resonator end surface pump bar laser schematic diagram is seen Fig. 2 and Fig. 3, and wherein Fig. 2 is an end view, Fig. 3 vertical view.The laser diode array output beam after the coupled system shaping focuses on, incides in the lath gain media, adopts steady cavity configuration.In Fig. 2 and Fig. 3,2 and 4 for forming two chamber mirrors of resonant cavity, and input mirror is a level crossing, and outgoing mirror also is a level crossing.
Fig. 2 and Fig. 4 are seen in steady chamber/just propping up unsteady cavity hybrid chamber laser diode array end pumping slab laser schematic diagram, and wherein Fig. 2 is an end view, Fig. 4 vertical view.After the coupled system shaping focuses on, incide in the lath gain media.Adopt steady chamber/just propping up unsteady cavity hybrid chamber structure, promptly in the logical optical cross-section of lath gain media, adopt stable cavity on the little direction of size, on big dimensional directions, adopt just fragmented axle confocal unstable resonator; In Fig. 2 and Fig. 4,2 and 4 for forming two chamber mirrors of resonant cavity, and input mirror is a spherical mirror, and outgoing mirror is the convex surface cylindrical mirror.
Steady chamber/negative unsteady cavity hybrid chamber laser diode array end pumping slab laser schematic diagram is seen Fig. 2 and Fig. 5, and wherein Fig. 2 is an end view, Fig. 5 vertical view.In Fig. 2 and Fig. 5,2 and 4 for forming two chamber mirrors of resonant cavity, all is spherical mirror.The laser diode array output beam after the coupled system shaping focuses on, incides in the lath gain media.Adopt steady chamber/negative unsteady cavity hybrid chamber structure, promptly in the logical optical cross-section of lath gain media, adopt stable cavity on the little direction of size, on big dimensional directions, adopt negative fragmented axle confocal unstable resonator; Input mirror and outgoing mirror are spherical mirrors.
Claims (3)
1. end pumping slab laser device, comprise pump light (1), input mirror (2), lath gain media (3), outgoing mirror (4), it is characterized in that: the output beam of laser diode array is behind pumping coupling system, focusing enters lath gain media (3), focus is in lath gain media (3) outside, and promptly pump light (1) enters lath gain media (3) with the form of dispersing; The thickness of lath gain media (3) changes gradually along optical direction, two big faces be end face with two bigger mirror polish of outer area, utilize total internal reflection that pump light (1) is distributed in the lath gain media (3) uniformly.
2. a kind of end pumping slab laser device as claimed in claim 1, it is characterized in that: input mirror (2) is a level crossing, or spherical mirror, or cylindrical mirror.
3. a kind of end pumping slab laser device as claimed in claim 1, it is characterized in that: outgoing mirror is a level crossing, or spherical mirror, or cylindrical mirror.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007101189608A CN100456579C (en) | 2007-06-15 | 2007-06-15 | End-pumped plates laser technique |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007101189608A CN100456579C (en) | 2007-06-15 | 2007-06-15 | End-pumped plates laser technique |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101068062A CN101068062A (en) | 2007-11-07 |
| CN100456579C true CN100456579C (en) | 2009-01-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2007101189608A Expired - Fee Related CN100456579C (en) | 2007-06-15 | 2007-06-15 | End-pumped plates laser technique |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103701018A (en) * | 2013-12-13 | 2014-04-02 | 南京大学 | Partial end surface pumping mixing chamber slab optical parametric oscillator |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103210555A (en) * | 2010-08-10 | 2013-07-17 | 丹特雷有限公司 | Laser arrangement and system, and a medical laser treatment system thereof |
| CN109709997B (en) * | 2017-10-25 | 2023-02-28 | 佛山市顺德区美的电热电器制造有限公司 | Control method and device of cooking equipment and computer readable medium |
| CN108365510B (en) * | 2018-04-23 | 2020-08-11 | 中国科学院光电研究院 | Side-pumped solid laser |
| DE102018003813A1 (en) * | 2018-05-13 | 2019-11-14 | Edgewave Gmbh | Optical amplifier arrangements |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5159605A (en) * | 1990-01-19 | 1992-10-27 | Mitsubishi Denki Kabushiki Kaisha | Semiconductor-laser-pumped, solid-state laser |
| US6014391A (en) * | 1997-12-19 | 2000-01-11 | Raytheon Company | Thermally improved slab laser pump cavity apparatus with integral concentrator and method of making same |
| CN1783601A (en) * | 2004-12-01 | 2006-06-07 | 郑州大学 | Internal cavity multiple frequency laser of laser diode pump |
-
2007
- 2007-06-15 CN CNB2007101189608A patent/CN100456579C/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5159605A (en) * | 1990-01-19 | 1992-10-27 | Mitsubishi Denki Kabushiki Kaisha | Semiconductor-laser-pumped, solid-state laser |
| US6014391A (en) * | 1997-12-19 | 2000-01-11 | Raytheon Company | Thermally improved slab laser pump cavity apparatus with integral concentrator and method of making same |
| CN1783601A (en) * | 2004-12-01 | 2006-06-07 | 郑州大学 | Internal cavity multiple frequency laser of laser diode pump |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103701018A (en) * | 2013-12-13 | 2014-04-02 | 南京大学 | Partial end surface pumping mixing chamber slab optical parametric oscillator |
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| CN101068062A (en) | 2007-11-07 |
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Granted publication date: 20090128 Termination date: 20120615 |