CN1665082A - Optical pumping system of disc type laser device - Google Patents
Optical pumping system of disc type laser device Download PDFInfo
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- CN1665082A CN1665082A CN 200510016604 CN200510016604A CN1665082A CN 1665082 A CN1665082 A CN 1665082A CN 200510016604 CN200510016604 CN 200510016604 CN 200510016604 A CN200510016604 A CN 200510016604A CN 1665082 A CN1665082 A CN 1665082A
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- concave mirror
- laser
- laser crystal
- mirror
- optical fiber
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Abstract
The invention relates to a light pumping system for all-solid laser, particularly a light pumping system for disc type laser, comprising heat sink, laser crystal, optical fiber, plane reflector, a first concave reflector, a second concave reflector, and a third concave reflector, and adopting a structure that the plane reflector is between the optical fiber and the first concave reflector, to make the LD and laser cavity on the same side of the laser crystal, thus reducing the packaged size of the laser; the invention fixes the plane reflector on the heat sink to reduce the inclined incident angle of the pumped light beam, thus the pumped light can be fully absorbed, and the invention solves the problem of pumping efficiency and largely reduces the bulk of the laser, beneficial to the all curing of the product and ensuring the cooling requirement of the laser crystal.
Description
Technical field
The present invention relates to the optical pumping system of the optical pumping system of all solid laser, particularly a kind of disc type laser device.
Background technology
In disc type laser device, because laser crystal thickness is tens between hundreds of the micron, pump light incident laser crystal and reflection are passed through in the laser crystal process for twice, absorb insufficiently, and this just requires pump light repeatedly to pass through laser crystal.Relevant disc type laser device optical pumping system is at document (1.progress towards high-power, high-brightness neodymium-basedthin-disk lasers, Alan J.Kemp, Gareth J.Valentine, David Burns, progress in quantum electronics, 2,004 11 001 P1～40; 2 utilize disk laser to carry out microfabrication, Song Yunduo, ray machine electrical information, 2,004 5 P4～5; 3 opticscommunications, 237 (2004) P405～409 A novel blue light generation byfrequency doubling of a diode-pumped Nd:YAG thin disk laser YupengKong etc.optics communications, 2,004 237 P405～409) existing described in.
The pumping system that document 3 adopts comprises: heat sink 1, laser crystal 2, optical fiber 3, plane mirror 4, concave mirror 5, concave mirror 6, concave mirror 7; As shown in Figure 1, settle optical fiber 3, concave mirror 5, laser crystal 2, concave mirror 6, plane mirror 4, concave mirror 7 successively in the direction of propagation of light beam, the outgoing beam of optical fiber 3, through concave mirror 5, focus on the laser crystal 2, emergent light on the laser crystal 2 focuses on the laser crystal 2 through concave mirror 6 after concave mirror 7 and plane mirror 4 reflections more once more, reaches the purpose of four turnover laser crystals.On laser crystal, again by concave mirror 6, level crossing 4 reflects employing optical fiber emergent light through the concave mirror reflect focalization in the background technology, at last, focus on the laser crystal through concave mirror once more, when big, pump beam will focus on the laser crystal with bigger incidence angle when heat sink.
Summary of the invention
Background technology adopts water-cooling pattern, make that overall volume is big after the individual laser package, complex structure, the excessive astigmatism that causes of the oblique firing angle of pump beam, make the pump spot distortion, cause problems such as pumping efficiency reduction, in order to solve the problem of above-mentioned background technology, the purpose of this invention is to provide a kind of package dimension compactness, pump light absorbs sufficient disc type laser device optical pumping system.
In order to realize purpose of the present invention, the present invention adopts heat sink, laser crystal, optical fiber, plane mirror, first concave mirror, second concave mirror, the 3rd concave mirror, the direction of propagation at light beam is settled optical fiber successively, plane mirror, first concave mirror, laser crystal, second concave mirror, the 3rd concave mirror, laser crystal be close to heat sink on, the working face of optical fiber exit end and plane mirror is staggered relatively, the working face of the working face of plane mirror and first concave mirror is staggered relatively, the focus of first concave mirror is positioned on the laser crystal, second concave mirror, the focus of the 3rd concave mirror all is positioned on the laser crystal, and the working face of second concave mirror and the 3rd concave mirror is staggered relatively.
The present invention is from the light beam directive plane mirror of optical fiber outgoing, reflex to first concave mirror through plane mirror, focus on the laser crystal then, light beam directive second concave mirror by the laser crystal outgoing, after reflexing on the 3rd concave mirror, focus on once more on the laser crystal, finish the pumping to disc type laser device, pumping process residue light beam does not enter light path of the present invention.
Advantage of the present invention:, can make pump light source and laser cavity be positioned at the same side of laser crystal of the present invention, thereby reduce the package dimension of laser because the present invention adopts the structure of plane mirror between the optical fiber and first concave mirror; The present invention with plane mirror be fixed on heat sink on, the oblique firing angle of pump beam is reduced, pump light then can fully absorb, for this reason, the invention solves background technology adopts first concave mirror to make the excessive astigmatism that causes of the oblique firing angle of pump beam, the pump spot distortion causes that pumping efficiency reduces problem, thereby make the present invention can select the large-scale semiconductor refrigerator for use, avoid using water-cooled, then the volume of laser significantly reduces, help the full curing of product, guaranteed the heat radiation requirement of laser crystal simultaneously.
Description of drawings
Fig. 1 is the pumping system of background technology document 3
Fig. 2 is an optical texture schematic diagram of the present invention, also is Figure of abstract.
Embodiment
The present invention will be elaborated with reference to accompanying drawing in conjunction with the embodiments, so that purpose of the present invention, feature, advantage are carried out more deep understanding.
The pumping system that the present invention adopts as shown in Figure 2, it comprises: heat sink 1, laser crystal 2, optical fiber 3, plane mirror 4, first concave mirror 5, second concave mirror 6, the 3rd concave mirror 7.
Heat sink 1 can adopt =16mm oxygen-free copper; Laser crystal 2 can adopt 10*10*0.2mm
3Nd:GaVO
4Optical fiber 3 can adopt LIMO 8cm NA=0.22 optical fiber; Plane mirror 4 can adopt 808HR, =4mm level crossing; First concave mirror 5, second concave mirror 6, the 3rd concave mirror 7 all can adopt the concave mirror of plating 808HR, =4mm, R=25mm.The emergent light of optical fiber 3 is through level crossing 4 reflections, focus on the laser crystal through concave mirror 5 again, emergent light on the laser crystal focuses on the laser crystal 2 after concave mirror 6 and concave mirror 7 reflections once more, reaches the purpose of four turnover laser crystals.
Claims (1)
1. the optical pumping system of a disc type laser device, comprise heat sink (1), laser crystal (2), optical fiber (3), plane mirror (4), first concave mirror (5), second concave mirror (6), the 3rd concave mirror (7), it is characterized in that: settle optical fiber (3) successively in the direction of propagation of light beam, plane mirror (4), first concave mirror (5), laser crystal (2), second concave mirror (6), the 3rd concave mirror (7), laser crystal (2) is close on heat sink (1), the working face of optical fiber (3) exit end and plane mirror (4) is staggered relatively, the working face of the working face of plane mirror (4) and first concave mirror (5) is staggered relatively, the focus of first concave mirror (5) is positioned on the laser crystal (2), second concave mirror (6), the focus of the 3rd concave mirror (7) all is positioned on the laser crystal (2), second concave mirror (6) is staggered relatively with the working face of the 3rd concave mirror (7), light beam directive plane mirror (4) from optical fiber (3) outgoing, reflex to first concave mirror (5) through plane mirror, focus on then on the laser crystal (2), light beam directive second concave mirror (6) by laser crystal (2) outgoing, after reflexing on the 3rd concave mirror (7) 7 again, focus on once more on the laser crystal (2), finish pumping disc type laser device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510016604 CN1665082A (en) | 2005-03-04 | 2005-03-04 | Optical pumping system of disc type laser device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510016604 CN1665082A (en) | 2005-03-04 | 2005-03-04 | Optical pumping system of disc type laser device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1665082A true CN1665082A (en) | 2005-09-07 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200510016604 Pending CN1665082A (en) | 2005-03-04 | 2005-03-04 | Optical pumping system of disc type laser device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1665082A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011130897A1 (en) * | 2010-04-19 | 2011-10-27 | 华中科技大学 | Disc-shaped solid laser |
| CN107317215A (en) * | 2016-04-26 | 2017-11-03 | 通快激光有限责任公司 | Pumping optical assembly, disc type laser device and the method for being consequently for pumping laser active medium |
-
2005
- 2005-03-04 CN CN 200510016604 patent/CN1665082A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011130897A1 (en) * | 2010-04-19 | 2011-10-27 | 华中科技大学 | Disc-shaped solid laser |
| RU2517963C1 (en) * | 2010-04-19 | 2014-06-10 | Хуачжун Юниверсити Оф Сайенс Энд Текнолоджи | Disc-shaped solid laser |
| CN107317215A (en) * | 2016-04-26 | 2017-11-03 | 通快激光有限责任公司 | Pumping optical assembly, disc type laser device and the method for being consequently for pumping laser active medium |
| CN107317215B (en) * | 2016-04-26 | 2021-02-02 | 通快激光有限责任公司 | Pump light assembly, disk laser and method for pumping a laser-active medium using said pump light assembly |
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| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |