CN1306325A - Transversely wind-cooled bidoped crystal laser - Google Patents
Transversely wind-cooled bidoped crystal laser Download PDFInfo
- Publication number
- CN1306325A CN1306325A CN 01107163 CN01107163A CN1306325A CN 1306325 A CN1306325 A CN 1306325A CN 01107163 CN01107163 CN 01107163 CN 01107163 A CN01107163 A CN 01107163A CN 1306325 A CN1306325 A CN 1306325A
- Authority
- CN
- China
- Prior art keywords
- laser
- crystal
- bidoped
- cooled
- cavity
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Landscapes
- Lasers (AREA)
Abstract
A double dopping laser of transverse wind cooling includes a laser, output mirrors setting front and back of the seat, a resonant cavity of total reflection mirror, a light focussing cavity setting on the resonant cavity, a xenon lamp in the light focussing cavity setting on the seat supporting frame with two ends out of the light focussing cavity, a laser crystal setting on the seat supporting frame at the bottom of the xenon lamp, polarizing sheet setting on the seat between the total reflection mirror and laser crystal. The present invention features having a wind inlet seam matching with the diameter and the length of the laser crystal at the side of light focussing cavity and a transverse channel connecting the blower and wind inlet seam with its two ends on the seat. The laser crystal is made of a double yttrium aluminium garnet laser crystal dopping with neodymium and cerium.
Description
What the present invention relates to is a kind of laser, particularly be a kind of transversely wind-cooled bidoped crystal laser that is used for the air-to-air laser ranging machine.
The xenon flash lamp pumping solid state laser has a large amount of thermal lossess, must cool off working-laser material, xenon lamp.The existing type of cooling has conduction cooling and liquid cools.Because laser-conversion efficiency is low, hear rate is big, so cooling power is also big.For the complete machine of repetition rate, the conduction cooldown rate can not satisfy the cooling requirement, and liquid cools causes the cooling structure complexity, faces as sealing, the low-temperature working cooling fluid is solidified and problem such as laser pump cavity pollution.
In view of above reason, the objective of the invention is for a kind of compact conformation is provided, cooling effect is good, transformation efficiency height, the transversely wind-cooled bidoped crystal laser of minimizing heat loss.
The object of the present invention is achieved like this:
Transversely wind-cooled bidoped crystal laser of the present invention comprises support, there is the support of being positioned to go forward, after outgoing mirror, the resonant cavity of total reflective mirror, place the laser pump cavity between resonant cavity, there are two ends to stretch out laser pump cavity in the laser pump cavity and are contained in xenon lamp on the frame support, be positioned at the laser crystal on the frame support of being contained in of xenon lamp bottom, polarizer is contained in and is positioned on the support between total reflective mirror and laser crystal, it is characterized in that the air intake slit that is complementary with laser crystal diameter and length is arranged in the laser pump cavity side, the interconnection that has two ends to be communicated with blower fan and air intake slit respectively on the support, laser crystal adopts the Yttrium aluminium garnet laser crystal of neodymium-doped and cerium, adopting horizontal air channel to reach is provided with the air intake slit and makes laser pump cavity become special-shaped laser pump cavity in the laser pump cavity side, carry out large-area laterally mandatory air-cooled to laser crystal and xenon lamp from the side, and by the powerful characteristic test of wind, reduce windage, improve air quantity, improve the air outlet uniformity, determine best operating point, laser crystal adopts threshold values low, the anti-ultraviolet radiation ability is strong, two doped yttrium aluminium garnet crystals that repetition rate is stable, i.e. (Nd, Ce): the YAG crystal is as working-laser material, improve the transformation efficiency of laser, reduce heat loss.
Outgoing mirror adopts level crossing in the above-mentioned resonant cavity, and total reflective mirror adopts concave mirror, forms the thermally-stabilised resonant cavity of plano-concave.
The lithium columbate crystal as Q switched element that is positioned between polarizer and total reflective mirror is arranged on the above-mentioned support, and the compression laser pulse width obtains the laser output of high-peak power.
There is the transition decompression tube that is communicated with interconnection and blower fan at above-mentioned air inlet place, horizontal air channel, determines the best operating point of blower fan.
Above-mentioned laser pump cavity slit width and length are 3～3.5mm * 50～75mm, and laser crystal can be selected the crystal of φ 5 * 80mm for use.
Above-mentioned laser pump cavity slit width and length are 3mm * 58mm.
Referring to Fig. 1～Fig. 4, power supply provides energy for the xenon lamp body, and flash of light converges to two mixing on the laser crystal through laser pump cavity, produces the laser of transferring Q through lithium niobate.Extraneous power supply makes the blower fan high speed rotating, and cold wind slit from the laser pump cavity side behind transitional cylinder, horizontal air channel enters laser pump cavity, two doped yttrium aluminium garnet laser crystals of cooling and xenon lamp.Meanwhile, be added with high pressure (as 3KV) on the lithium columbate crystal, triggering forms laser generation after moving back the life of cutting down output between resonant cavity total reflective mirror and outgoing mirror, output giant pulse laser.
Laser of the present invention adopts two mix (Nd, Ce): the YAG crystal, the thermally-stabilised resonant cavity of plano-concave, the abnormity laser pump cavity, lithium columbate crystal is transferred Q, finally obtains repetition rate, the electric-optically Q-switched laser output of energy, optical axis stable, and its environmental adaptability is strong, compact conformation, cooling effect is good, has improved the laser conversion ratio greatly, reduces heat loss.After tested, optical maser wavelength is 1.06 μ m, and lithium niobate electric-optically Q-switched laser peak power reaches 10MW, repetition rate 12.5Hz, scattered laser beam 3 ± 0.5mrad, laser axis is to drift≤0.2mrad, cooling power 12.6W, environmental adaptation temperature-43 ℃～+ 55 ℃, reliability (MTBF) 1250 hours.Laser application of the present invention is in the air-to-air laser ranging machine, and the economic benefit of complete machine has reached 2,130 ten thousand yuan (RMB).
Describe embodiments of the invention in detail below in conjunction with accompanying drawing:
Fig. 1 is a structural representation of the present invention.
Fig. 2 is an optical system diagram of the present invention.
Fig. 3 is air intake slit location figure on the laser pump cavity of the present invention.
Fig. 4 is the right view of Fig. 3.
Referring to Fig. 1～Fig. 4, blower fan 2 is equipped with in support 1 bottom, and the transition decompression tube 3 that is communicated with blower fan is with filtration decompression tube 3 horizontal air channels 4 that are communicated with.The forward and backward flat output mirror 6 that has respectively on the frame of being contained in of the thermally-stabilised resonant cavity 5 of the plano-concave of upper part of the frame contains the assembly 8 that is all-trans of spill total reflective mirror 7.The side that is positioned at the special-shaped laser pump cavity 9 of resonant cavity has and the logical powerful air intake slit 10 that communicates of transverse air-intake, and its width is that 3mm, its length are 58mm.Two ends of the xenon lamp 11 in the laser pump cavity stretch out laser pump cavity and are contained on the xenon lamp support 12 on the support.The diameter of two doped yttrium aluminium garnet laser crystals 13 of neodymium-doped and cerium is 5mm, and length is 80mm, is contained on the V-type groove of the bearing 14 that is positioned under the xenon lamp.The fixedly compressing tablet 15 of laser pump cavity is arranged on support.The polarizer 16 that is contained on the support is arranged between xenon lamp and total reflective mirror.The lithium columbate crystal 17 that is contained on the support is arranged between polarizer and total reflective mirror.
Claims (6)
1, transversely wind-cooled bidoped crystal laser, comprise support, there is the support of being positioned to go forward, after outgoing mirror, the resonant cavity of total reflective mirror, place the laser pump cavity between resonant cavity, there are two ends to stretch out laser pump cavity in the laser pump cavity and are contained in xenon lamp on the frame support, be positioned at the laser crystal on the frame support of being contained in of xenon lamp bottom, polarizer is contained in and is positioned on the support between total reflective mirror and laser crystal, it is characterized in that the air intake slit that is complementary with laser crystal diameter and length is arranged in the laser pump cavity side, the interconnection that has two ends to be communicated with blower fan and air intake slit respectively on the support, laser crystal adopts the Yttrium aluminium garnet laser crystal of neodymium-doped and cerium.
2, transversely wind-cooled bidoped crystal laser as claimed in claim 1 is characterized in that outgoing mirror adopts level crossing in the resonant cavity, and total reflective mirror adopts concave mirror, forms the thermally-stabilised resonant cavity of plano-concave.
3, transversely wind-cooled bidoped crystal laser as claimed in claim 1 or 2 is characterized in that having the lithium columbate crystal as Q switched element between polarizer and total reflective mirror of being positioned at that is contained on the support, and the compression laser pulse width obtains the laser output of high-peak power.
4, transversely wind-cooled bidoped crystal laser as claimed in claim 1 or 2 is characterized in that there is the transition decompression tube that is communicated with interconnection and blower fan at air inlet place, horizontal air channel, determines the best operating point of blower fan.
5, transversely wind-cooled bidoped crystal laser as claimed in claim 1 or 2 is characterized in that laser pump cavity slit width and length are 3～3.5mm * 50～75mm.
6, transversely wind-cooled bidoped crystal laser as claimed in claim 5 is characterized in that laser pump cavity slit width and length are 3mm * 58mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01107163 CN1306325A (en) | 2001-02-23 | 2001-02-23 | Transversely wind-cooled bidoped crystal laser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01107163 CN1306325A (en) | 2001-02-23 | 2001-02-23 | Transversely wind-cooled bidoped crystal laser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1306325A true CN1306325A (en) | 2001-08-01 |
Family
ID=4656113
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01107163 Pending CN1306325A (en) | 2001-02-23 | 2001-02-23 | Transversely wind-cooled bidoped crystal laser |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1306325A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104316887A (en) * | 2014-11-10 | 2015-01-28 | 中国人民解放军海军工程大学 | Performance test method and device for laser xenon lamp |
| CN106785851A (en) * | 2017-02-08 | 2017-05-31 | 北京宏强富瑞技术有限公司 | For the main power amplifier device of all solid state ultrafast laser |
| CN106848819A (en) * | 2017-02-08 | 2017-06-13 | 北京宏强富瑞技术有限公司 | The main power amplifier device of all solid state ultrafast laser |
-
2001
- 2001-02-23 CN CN 01107163 patent/CN1306325A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104316887A (en) * | 2014-11-10 | 2015-01-28 | 中国人民解放军海军工程大学 | Performance test method and device for laser xenon lamp |
| CN104316887B (en) * | 2014-11-10 | 2017-02-15 | 中国人民解放军海军工程大学 | Performance test method and device for laser xenon lamp |
| CN106785851A (en) * | 2017-02-08 | 2017-05-31 | 北京宏强富瑞技术有限公司 | For the main power amplifier device of all solid state ultrafast laser |
| CN106848819A (en) * | 2017-02-08 | 2017-06-13 | 北京宏强富瑞技术有限公司 | The main power amplifier device of all solid state ultrafast laser |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108306168B (en) | A kind of holmium laser | |
| CN109687266A (en) | A kind of 2.79 microns of erbium lasers of high-peak power | |
| CN1306325A (en) | Transversely wind-cooled bidoped crystal laser | |
| CN1564389A (en) | Laser LED pump solid laser | |
| CN201466460U (en) | Thin disk all-solid-state laser | |
| CN201332212Y (en) | Novel two-way holmium laser | |
| CN100461555C (en) | Quasi-continuous two-bar series inner cavity frequency multiflier high power green laser of 200 vatts grade | |
| CN101950919A (en) | Full solid serial pump laser | |
| CN201853935U (en) | Compact multi-pulse electrooptic Q-switched solid laser | |
| CN102801102A (en) | 3.9 mu m mid infrared laser | |
| CN206099037U (en) | Rotatory gain medium -'s of semiconductor laser end pump mode -locking laser | |
| CN211879768U (en) | Dual-wavelength pumping ultraviolet laser generating device | |
| CN1897370A (en) | 2 mu m bonded monoblock and non-planar longitudinal-mode laser | |
| CN1885643A (en) | Semiconductor laser pumping prism beam-expanded solid batten laser | |
| CN2938489Y (en) | Pusewidth modutatable laser | |
| CN2598214Y (en) | Solid strip laser of laser diode inclination pumping | |
| CN201576886U (en) | Radiating device of semiconductor laser | |
| CN2674720Y (en) | End pumping regulating Q solid laser | |
| CN2665999Y (en) | W-class air cooling green laser | |
| CN201478675U (en) | Three-path holmium laser | |
| CN2195807Y (en) | Dye laser for complex copper steam laser pump | |
| CN205901061U (en) | Lamp pump laser instrument | |
| CN2620397Y (en) | Single side pumping all solidified Yb:YAG block laser | |
| CN1269275C (en) | LD end surface pumping total solid-state intracavity doubling watt level continuous blue laser | |
| CN1988297A (en) | Solid plate strip laser of prism beam expanding technology and semiconductor laser pump |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |