CN204517149U - Pulse single longitudinal mode q-spoiled laser - Google Patents
Pulse single longitudinal mode q-spoiled laser Download PDFInfo
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- CN204517149U CN204517149U CN201520271318.3U CN201520271318U CN204517149U CN 204517149 U CN204517149 U CN 204517149U CN 201520271318 U CN201520271318 U CN 201520271318U CN 204517149 U CN204517149 U CN 204517149U
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- laser
- longitudinal mode
- single longitudinal
- pulse
- spoiled
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Abstract
The utility model relates to a kind of pulse single longitudinal mode q-spoiled laser, comprise pumping source (1), laser crystal (2), plano-concave total reflective mirror (3), the film polarizer (4), level crossing (5) and beam splitter (6), the laser that described pumping source (1) sends arrives plano-concave total reflective mirror (3) respectively by laser crystal (2) and arrives level crossing (5) by the film polarizer (4), arrives beam splitter (6) after level crossing (5).The pulse single longitudinal mode q-spoiled laser that the utility model provides uses Cr
4+: YAG crystal is as passive Q-switch, and obtaining pulse duration is 913ns, and stable pulse, the single longitudinal mode Q impulse of single pulse energy 11218mJ, peak power 0113MW export.This laser structure is compact, adjustment is simple, stable performance, is applicable to engineer applied.
Description
Technical field
The utility model relates to a kind of laser, particularly relates to a kind of pulse single longitudinal mode q-spoiled laser, belongs to laser equipment field.
Background technology
Single longitudinal mode pulse laser is good with its monochromaticjty, the unmodulated feature of time domain Chang Zuowei pulse seed source in high-energy amplification system.Realize single longitudinal mode running and can adopt Dispersion Method, F-P Method of Etalon, compound cell method, the combined method of cell method of going in ring and said method.Single longitudinal mode laser structure is general more complicated and power output (energy) is less.Can adopt Q-regulating method to improve pure-tone pulse peak power, the device volume needed for actively Q-switched is large, forms complicated; Passive Q-switch structure is simple, easy to use, and therefore when not having critical timing requirements to output pulse, can pay the utmost attention to and realize single longitudinal mode running by passive Q-adjusted method, the passive Q-adjusted scheme of domestic existing ring cavity structure realizes the report of single longitudinal mode running.
Utility model content
In order to overcome the deficiencies in the prior art, resolving the problem of prior art, making up the deficiency of existing existing product in the market.
The utility model provides a kind of pulse single longitudinal mode q-spoiled laser, pumping source, laser crystal, plano-concave total reflective mirror, the film polarizer, level crossing and beam splitter, the laser that described pumping source sends arrives plano-concave total reflective mirror respectively by laser crystal and arrives level crossing by the film polarizer, after level crossing, arrive beam splitter.
Preferably, above-mentioned laser also comprises energy meter and high-speed light fulgurite.
Preferably, laser is divided into two-way by above-mentioned beam splitter, and a road arrives energy meter, and another road arrives high-speed light fulgurite.
Preferably, above-mentioned laser crystal is Cr
4+: YAG crystal.
Preferably, the distance between above-mentioned laser crystal and plano-concave total reflective mirror is 14cm.
Preferably, the distance between above-mentioned laser crystal and level crossing is 10cm.
The pulse single longitudinal mode q-spoiled laser that the utility model provides uses Cr
4+: YAG crystal is as passive Q-switch, and obtaining pulse duration is 913ns, and stable pulse, the single longitudinal mode Q impulse of single pulse energy 11218mJ, peak power 0113MW export.This laser structure is compact, adjustment is simple, stable performance, is applicable to engineer applied.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation.
Reference numeral: 1-pumping source; 2-laser crystal; 3-plano-concave total reflective mirror; The 4-film polarizer; 5-level crossing; 6-beam splitter; 7-energy meter; 8-high-speed light fulgurite.
Embodiment
Understand for the ease of those of ordinary skill in the art and implement the utility model, below in conjunction with the drawings and the specific embodiments, the utility model being described in further detail.
The pulse single longitudinal mode q-spoiled laser that the utility model provides, as shown in Figure 1, adds passive Q-adjusted switch Cr in flat-concave cavity
4+: YAG crystal (thickness 215mm) and a film polarizer TFP.The advantage of flat-concave cavity is adopted to have two: the adjustment off resonance permission in chamber is larger than average chamber, and pattern is good, stable output; Utilize the iris effect of crystal bar itself to control transverse mode, just need not can realize fundamental transverse mode output by additional aperture in chamber.Film polarizer as the P direction polarizer, and is placed in the side near outgoing mirror.If Cr
4+: YAG crystal can realize Brewster angle and place, then do not need other polarizer parts additional just can realize P direction linear polarization, and this provides thinking for simplifying laser structure further later.In order to obtain round number of times large as far as possible, by Cr
4+: YAG crystal is placed in the side of the total reflective mirror that beamwidth is comparatively large, power density is lower.Pumping module is by annular LD array, and Nd:YLF rod and temperature control system composition, under different draw power, can provide 10 ~ 20 times of one way small signal gains.LD array operation frequency 1Hz, peak power output 215kW, Nd:YLF thermal conductivity is less than Nd:YAG, but due to its natural birefringence more obvious than thermally induced birefringence, therefore Depolarization is less.Experiment uses diameter 3mm, logical light length 10mm, the Nd:YLF rod of two ends not plated film, excellent left side and the distance exported between flat level crossing M1 (transmitance is at 1053nm place) they are 10cm, and the spacing of the film polarizer (TFP) and M1 is 4cm; Distance between rod right side and plano-concave total reflective mirror M2 (be 99.9% at 1053nm place reflectivity) is 14cm, Cr
4+: the spacing of YAG crystal and M2 is 4cm; Resonant cavity is always about 24cm.Output optical pulse is divided into two bundles through beam splitter BS (at 1053nm place T=45%), a branch ofly directly enter energy meter, another light beam enters high-speed light fulgurite (bandwidth 8GHz), by high speed digital oscilloscope recording impulse waveform (bandwidth 3GHz).
Cr is used in LD laser diode-side-pumped flat-concave cavity Nd:YLF laser
4+: YAG crystal is as passive Q-switch, and obtaining pulse duration is 913ns, and stable pulse, the single longitudinal mode Q impulse of single pulse energy 11218mJ, peak power 0113MW export.This laser structure is compact, adjustment is simple, stable performance, is applicable to engineer applied.
The embodiment of the above is better embodiment of the present utility model; not limit concrete practical range of the present utility model with this; scope of the present utility model comprises and is not limited to this embodiment, and the equivalence change that all shapes according to the utility model, structure are done is all in protection range of the present utility model.
Claims (6)
1. a pulse single longitudinal mode q-spoiled laser, it is characterized in that: described laser comprises pumping source (1), laser crystal (2), plano-concave total reflective mirror (3), the film polarizer (4), level crossing (5) and beam splitter (6), the laser that described pumping source (1) sends arrives plano-concave total reflective mirror (3) respectively by laser crystal (2) and arrives level crossing (5) by the film polarizer (4), arrives beam splitter (6) after level crossing (5).
2. pulse single longitudinal mode q-spoiled laser according to claim 1, is characterized in that: described laser also comprises energy meter (7) and high-speed light fulgurite (8).
3. pulse single longitudinal mode q-spoiled laser according to claim 2, is characterized in that: laser is divided into two-way by described beam splitter (6), and a road arrives energy meter (7), and another road arrives high-speed light fulgurite (8).
4. pulse single longitudinal mode q-spoiled laser according to claim 1, is characterized in that: described laser crystal (2) is Cr
4+: YAG crystal.
5. pulse single longitudinal mode q-spoiled laser according to claim 1, is characterized in that: the distance between described laser crystal (2) and plano-concave total reflective mirror (3) is 14cm.
6. pulse single longitudinal mode q-spoiled laser according to claim 5, is characterized in that: the distance between described laser crystal (2) and level crossing (5) is 10cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520271318.3U CN204517149U (en) | 2015-04-27 | 2015-04-27 | Pulse single longitudinal mode q-spoiled laser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520271318.3U CN204517149U (en) | 2015-04-27 | 2015-04-27 | Pulse single longitudinal mode q-spoiled laser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204517149U true CN204517149U (en) | 2015-07-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520271318.3U Expired - Fee Related CN204517149U (en) | 2015-04-27 | 2015-04-27 | Pulse single longitudinal mode q-spoiled laser |
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| CN (1) | CN204517149U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108767639A (en) * | 2018-05-23 | 2018-11-06 | 吉林省科英激光股份有限公司 | A kind of laser of exportable single longitudinal mode laser beam and its go out light control method |
-
2015
- 2015-04-27 CN CN201520271318.3U patent/CN204517149U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108767639A (en) * | 2018-05-23 | 2018-11-06 | 吉林省科英激光股份有限公司 | A kind of laser of exportable single longitudinal mode laser beam and its go out light control method |
| CN108767639B (en) * | 2018-05-23 | 2020-01-07 | 吉林省科英激光股份有限公司 | Laser capable of outputting single longitudinal mode laser beam and light emitting control method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20150729 Termination date: 20160427 |