CN203339468U - Multipath lamp pump laser coherent synthesis device based on pyramid prism - Google Patents
Multipath lamp pump laser coherent synthesis device based on pyramid prism Download PDFInfo
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- CN203339468U CN203339468U CN2013204478600U CN201320447860U CN203339468U CN 203339468 U CN203339468 U CN 203339468U CN 2013204478600 U CN2013204478600 U CN 2013204478600U CN 201320447860 U CN201320447860 U CN 201320447860U CN 203339468 U CN203339468 U CN 203339468U
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Abstract
The utility model discloses a multipath lamp pump laser coherent synthesis device based on a pyramid prism. The device comprises a pumping system, a resonant cavity totally reflecting mirror, an output mirror, a first path laser and a second path laser, wherein the first path laser and the second path laser are arranged between the resonant cavity totally reflecting mirror and the output mirror. The first path laser comprises a first laser medium, a first path mutual injection mirror group spectroscope and a first path mutual injection mirror group totally reflecting mirror. The second path laser comprises a second laser medium, a second path mutual injection mirror group spectroscope and a second path mutual injection mirror group totally reflecting mirror. A mutual injection optical path which is formed between the first path mutual injection mirror group totally reflecting mirror and the second path mutual injection mirror group totally reflecting mirror respectively vertically intersects with the optical path of the first laser medium and the optical path of the second laser medium. The first path mutual injection mirror group spectroscope and the second path mutual injection mirror group spectroscope are respectively arranged at the intersections. The device provided by the utility model has the advantages of compact size, high combination efficiency, low cost, strong scalability and good scaling amplification ability.
Description
Technical field
The utility model belongs to laser technology field, and particularly a kind of Multi-path lamp pump laser coherence synthesizing device based on prism of corner cube, be applicable to laser processing.
Background technology
High power, high light beam quality and high reliability laser have important application in fields such as scientific research, industrial processes and military weapons.Although current high-power chemical laser, thermal capacitance solid state laser etc. have been realized the high-power output of tens kW magnitudes, but these laser systems are bulky, involve great expense, technical difficulty is larger, and reliability, stability and combination property still need further raising.
By a plurality of lasers, carrying out light beam synthetic is the effective way of the high-power laser light source of the beam quality that obtains.On the one hand, improve the power of output beam when guaranteeing single laser beam quality, realized the raising of brightness; On the other hand, the structure of division of labor formula has effectively been disperseed thermal effect, has effectively overcome the decline problem of the output beam mean flow rate that " thermal effect " cause.Based on a plurality of laser beams, synthetic high energy laser system has solved brightness and two difficult problems of heat management simultaneously, is the important directions of high energy laser system development.
The synthetic Incoherent beam combining and relevant synthetic that is divided into of the light beam of a plurality of lasers, Incoherent beam combining comprises that again simple physical stack and the spectrum of a plurality of laser output intensities is synthetic.The synthetic general structure of spectrum is to utilize chromatic dispersion structure that several lasers of identical wavelength are synthesized to beam of laser output.In the situation that do not consider space and cost, Incoherent beam combining can greatly improve laser output power, and simple to operate, but be subject to external environment (as temperature mechanical oscillation etc.) and the impact of parameter fluctuation own larger, it is indefinite that phase difference between each laser rises and falls, therefore coherence and the beam quality of synthetic light beam will descend, poor stability.Relevant synthesizing is the laser beam phase locking that utilizes certain technology that each operation wavelength is identical, makes these laser beams, in far field, coherent superposition occur.After relevant synthetic, the laser brightness of output becomes the growth square doubly of synthetic way.This scheme has advantages of that than Incoherent beam combining more high power, high light beam quality, high conversion efficiency, compact conformation and cost are few, so become the forefront problem of current high energy laser system research field.
U.S. Northrop Grumman company has adopted a master oscillator to drive the power amplifier of a plurality of parallel connections, carry out the relevant synthetic design philosophy of multiple aperture plate solid laser, thereby alleviated the burden of amplifier element, only by the number that increases amplifier, can improve power output, and in March, 2009, realize that seven roads are relevant synthetic, power output reaches 105.5KW.In September, 2008, directed energy weapon research institute of USN, adopt 6 road 5.5KW fiber lasers to close bundle, realizes the laser weapon demonstration and verification.2011, the National University of Defense technology realized that 9 road full-optical-fiber lasers are relevant synthetic, and power output reaches 1.56kW.
Realize the relevant synthetic relevant synthetic and passive relevant synthesis mode of active mainly contained based on the MOPA structure.Initiatively phase-locked scheme need to be carried out phase detection and compensation to every sub-laser, and its structure is too accurate and complicated, and system is huge especially.Passive relevant synthetic schemes mainly contains " self-Fourier transform cavity configuration ", " self-imaging resonator structure ", " filtering ring cavity structure " etc.Within 2008, Corcoran utilizes the self-Fourier transform chamber to realize that 7 road high-power coherents are synthetic, in the situation that gross power is 70W, has obtained the phase-locked Laser output of 6W.Utilize the self-Fourier transform chamber to carry out the relevant synthetic of laser array, although system bulk is less, the alignment between laser beam and manufacture difficulty of processing are large, and combined coefficient is generally lower.2008, the Wang Wei of Shanghai ray machine institute of the Chinese Academy of Sciences etc. utilized self-imaging resonator to realize the coherent beam combination experiment of 2 Wei4Lu, has obtained the stable relevant output of 26W.But, because space filtering is introduced energy loss, in self-imaging resonator, the efficiency of unit light beam can reduce along with increasing of laser number.The filtering annular chamber is a kind of novel exocoel synthetic schemes just proposed in recent years.The Zhou Jun of Shanghai ray machine institute of the Chinese Academy of Sciences in 2010 etc. utilize the filtering annular chamber to realize the passive coherent beam combination experiment of 2 dimension 4 road Yb dosed optical fiber laser.Yet experiment and theory show, the phase control efficiency of filtering annular chamber will descend along with the increase of laser power and increasing of number.
The applicant, in the process of pyramid chamber solid state laser that studies for a long period of time, finds that the seamed edge of three reflectings surface of pyramid and picture thereof are divided into symmetrical 6 laser beams that separate on space by laser beam, wherein in twos the light beam of conjugation spatially with the time on all fully relevant.These output beams are concentrated at the far field energy height, the angle of divergence is little, coherence distance is long, and (as laser ranging) ratio is used the ranging of conventional laser obviously to improve in some applications, and theoretical and experiment all proves that it has good coherent laser composite character.So, proposed first the mutual injection phase-locking concept based on pyramid at home and abroad, and successively be applied to the relevant synthetic synthetic with being concerned with of solid state laser of fiber laser.Utilize simple and practical prism of corner cube to realize the phase place locking of many laser mediums in the mode of mutual injection phase-locking, make frequency, the phase place of a plurality of laser signals be consistent as far as possible, thereby realize the relevant synthetic fibre-optical Laser output of high power, high light beam quality.
Yet optical-fiber laser is realizing that the relevant synthetic output facet of continuous laser has advantage, but has the higher drawback of cost, is difficult to promote in the industrial processes field.
The utility model content
The purpose of this utility model is the problems referred to above that exist for prior art, and a kind of Multi-path lamp pump laser coherence synthesizing device based on prism of corner cube is provided.
A kind of Multi-path lamp pump laser coherence synthesizing device based on prism of corner cube, comprise pumping system, also comprise resonant cavity total reflective mirror and outgoing mirror, also comprise the first via laser and No. second laser that are arranged between resonant cavity total reflective mirror and outgoing mirror, first via laser comprises that the first laser medium, the first via are injected mirror component light microscopic mutually and the first via is injected mirror group total reflective mirror mutually; No. second laser comprises that mirror component light microscopic is injected on the second laser medium, the second tunnel mutually and mirror group total reflective mirror is injected on the second tunnel mutually,
The light path at the light path at the first laser medium place, the second laser medium place is all parallel with the lamp in pumping system,
The first via is injected mutually mirror group total reflective mirror and the second tunnel and is injected mutually between mirror group total reflective mirror the mutual injection light path formed and intersect vertically with the light path at the first laser medium place and the light path at the second laser medium place respectively,
The first via is injected mutually mirror component light microscopic and is positioned at mutual injection light path with the intersection point place of the first laser medium place light path and becomes miter angle with the first laser medium place light path; The second tunnel is injected mutually mirror component light microscopic and is positioned at mutual injection light path with the intersection point place of the second laser medium place light path and becomes miter angle with the second laser medium place light path.
First via laser as above and No. second laser are 3.
The first via as above is injected mutually mirror component light microscopic and is arranged between the first laser medium and outgoing mirror or is arranged between the first laser medium resonant cavity total reflective mirror.
The resonant cavity total reflective mirror is prism of corner cube as mentioned above.
Pumping system can be krypton lamp pumping or xenon flash lamp pumping as mentioned above.
The utility model compared with prior art, has following effect:
1, volume compact is small and exquisite, close the bundle efficiency high;
2, cost is lower;
3, extensibility is strong, has and calibrates preferably amplifying power.
The accompanying drawing explanation
Fig. 1 is the prism of corner cube structural representation;
Fig. 2 is prism of corner cube and is divided into six part schematic diagrames by three crest lines and picture thereof;
Fig. 3 is the schematic perspective view in the utility model 7 lamp 6 rod situations;
Fig. 4 is pumping system in the utility model 7 lamp 6 rod situations and the laser medium situation schematic diagram of arranging;
Fig. 5 is that two light paths adjacent in the utility model realize the principle schematic of injecting mutually.
Wherein: 1, resonant cavity total reflective mirror; 2, pumping system; 3, laser medium; 4, inject mutually the mirror group; 5, outgoing mirror;
1-1, the firstth district; 1-2, Second Region; 1-3,3rd district; 1-4,4th district; 1-5,5th district; 1-6,6th district;
3-1, the first laser medium; 3-2, the second laser medium;
4-1, the first via are injected mirror component light microscopic mutually; Mirror component light microscopic is injected on 4-2, the second tunnel mutually; 4-3, the first via are injected mirror group total reflective mirror mutually; Mirror group total reflective mirror is injected on 4-4, the second tunnel mutually.
Embodiment
Below in conjunction with specific embodiment, the utility model is described in further detail, but the utility model is not limited to these embodiment.
A kind of Multi-path lamp pump laser coherence synthesizing device based on prism of corner cube, comprise pumping system 2, also comprise resonant cavity total reflective mirror 1 and outgoing mirror 5, also comprise the first via laser and No. second laser that are arranged between resonant cavity total reflective mirror 1 and outgoing mirror 5, first via laser comprises that the first laser medium 3-1, the first via are injected mirror component light microscopic 4-1 mutually and the first via is injected mirror group total reflective mirror 4-3 mutually; No. second laser comprises that mirror component light microscopic 4-2 is injected on the second laser medium 3-2, the second tunnel mutually and mirror group total reflective mirror 4-4 is injected on the second tunnel mutually,
The light path at the light path at the first laser medium 3-1 place, the second laser medium 3-2 place is all parallel with the lamp in pumping system 2,
The first via is injected mutually mirror group total reflective mirror 4-3 and the second tunnel and is injected mutually the mutual injection light path formed between mirror group total reflective mirror 4-4 and intersect vertically with the light path at the first laser medium 3-1 place and the light path at the second laser medium 3-2 place respectively,
The first via is injected mutually mirror component light microscopic 4-1 and is positioned at mutual injection light path with the intersection point place of the first laser medium 3-1 place light path and becomes miter angle with the first laser medium 3-1 place light path; The second tunnel is injected mutually mirror component light microscopic 4-2 and is positioned at mutual injection light path with the intersection point place of the second laser medium 3-2 place light path and becomes miter angle with the second laser medium 3-2 place light path.
First via laser and No. second laser are 3.
The first via is injected mutually mirror component light microscopic 4-1 and is arranged between the first laser medium 3-1 and outgoing mirror 5 or is arranged between the first laser medium 3-1 resonant cavity total reflective mirror 1.
Resonant cavity total reflective mirror 1 is prism of corner cube.
Principle of the present utility model is:
The utility model utilizes common prism of corner cube as relevant synthin, utilizes mutual injecting principle to realize relevant synthetic.Prism of corner cube is divided into six parts by three ribs and picture thereof, as shown in Figure 1 and 2, wherein two symmetrical parts have the conjugation effect, and the first district 1-1 He tetra-district 1-4, Second Region 1-2 He five district 1-5, tri-district 1-3 He six district 1-6 form the zone of three pairs of conjugation.Prism of corner cube and outgoing mirror form laserresonator, and as shown in Figure 3, the multi-path laser medium lays respectively between six zones of outgoing mirror and prism of corner cube, form the Multi-path lamp pump laser.The laser that is positioned at prism of corner cube conjugation zone is realized injecting mutually by the rear reflection characteristic of prism of corner cube, the laser that is positioned at the prism of corner cube adjacent area is realized the mutual injection (as shown in Figure 4) of energy by the spectroscope group, the conjugation district is symmetrical district, adjacent region is next door district, left and right, thereby the mutual injection phase-locking that realizes the Multi-path lamp pump laser is exported between the laser of ，Ge road and is synchronously realized the synchronous of Laser output by pumping.
In above-mentioned steps, multiple path laser can be in prism of corner cube symmetrical region two-way, four Lu Huo six road Solid State Lasers; The laser crystal structure can be pole or lath etc.; The laser material can be chosen as required; The position of spectroscope group can be also can be between laser medium and prism of corner cube between laser medium and outgoing mirror.The structure of laser medium, material and quantity are hard-core, can be pole, lath or other structures, and material can be Nd:YAG or Nd:YVO4 or other laser materials.The first via is injected mirror component light microscopic 4-1, the second tunnel mutually, and to inject mutually mirror component light microscopic 4-2 can be the spectroscope that 45 ° of semi-transparent semi-reflecting lens or Transflective are other ratios, can be also polarization splitting prism; The transmitance of 5 pairs of output light of outgoing mirror can be different value, the eyeglass that its form can have any shape or rete;
Shown in Fig. 1, prism of corner cube is divided into six parts by three crest lines and picture thereof.As shown in Figure 3, comprise prism of corner cube, seven road krypton lamp pumpings, six road solid laser mediums, three groups are injected mirror group, outgoing mirror mutually.Six road solid laser mediums lay respectively between prism of corner cube symmetrical six zones and outgoing mirror, symmetrical two-way laser medium central axis relative angle cone prism summit conjugation.Krypton lamp pumping Nd:YAG medium produces 1064nm laser, in the resonant cavity of prism of corner cube and outgoing mirror formation, vibrates.Utilize the retroreflection of pyramid to realize being positioned at the mutual injection of the close energy of lasers independent of each other of frequency of symmetric position, it is influenced each other, the frequency of oscillation of each laser is drawn mutually, the light beam that makes to vibrate has identical vibration and injection process, thereby obtain the simultaneous resonance output of symmetrical two-way laser, realize again the mutual injection of adjacent two-way laser by the mutual injection coupling mirror group between prism of corner cube and outgoing mirror, thereby realize the mutual injection phase-locking of six road laser, export by outgoing mirror.
As shown in Figure 5, in the utility model, two adjacent light paths realize the relevant principle schematic of injecting, and first via laser comprises that the first laser medium 3-1, the first via are injected mirror component light microscopic 4-1 mutually and the first via is injected mirror group total reflective mirror 4-3 mutually; No. second laser comprises that mirror component light microscopic 4-2 is injected on the second laser medium 3-2, the second tunnel mutually and mirror group total reflective mirror 4-4 is injected on the second tunnel mutually, and the first via is injected mutually mirror component light microscopic 4-1, the second tunnel and injected mutually mirror component light microscopic 4-2, the first via and inject mutually mirror group total reflective mirror 4-3, the second tunnel and inject mutually mirror group total reflective mirror 4-4 and form and inject mutually the mirror group.Vibration light beam in first via laser injects mirror component light microscopic 4-1 mutually through the first via, a part is reflected onto the second tunnel and injects mutually mirror component light microscopic 4-2 and reflex to No. second laser, another part directly sees through the first via and injects mutually mirror component light microscopic 4-1, through outgoing mirror 5 part outputs; Due to upper and lower two-way laser and Amici prism full symmetric, in like manner the vibration light beam in No. second laser also is injected in first via laser, thereby realizes that adjacent two-way laser injects coupling mutually.The first via is injected mutually mirror group total reflective mirror 4-3 and the second tunnel and is injected mutually the laser that mirror group total reflective mirror 4-4 will reflect outside chamber and again be reflected back light path, avoids energy loss, improves and injects effect.Concrete light path as shown in Figure 5, has realized the efficient injection phase-locking mutually of adjacent two-way laser by mutual injection mirror group.
Specific embodiment described herein is only to the explanation for example of the utility model spirit.The utility model person of ordinary skill in the field can make various modifications or supplements or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present utility model or surmount the defined scope of appended claims.
Claims (5)
1. the Multi-path lamp pump laser coherence synthesizing device based on prism of corner cube, comprise pumping system (2), it is characterized in that, also comprise resonant cavity total reflective mirror (1) and outgoing mirror (5), also comprise the first via laser and No. second laser that are arranged between resonant cavity total reflective mirror (1) and outgoing mirror (5), first via laser comprises that the first laser medium (3-1), the first via are injected mirror component light microscopic (4-1) mutually and the first via is injected mirror group total reflective mirror (4-3) mutually; No. second laser comprises that mirror component light microscopic (4-2) is injected on the second laser medium (3-2), the second tunnel mutually and mirror group total reflective mirror (4-4) is injected on the second tunnel mutually,
The light path at the light path at the first laser medium (3-1) place, the second laser medium (3-2) place is all parallel with the lamp in pumping system (2),
The first via is injected mutually mirror group total reflective mirror (4-3) and the second tunnel and is injected mutually the mutual injection light path formed between mirror group total reflective mirror (4-4) and intersect vertically with the light path at the first laser medium (3-1) place and the light path at the second laser medium (3-2) place respectively,
The first via is injected mutually mirror component light microscopic (4-1) and is positioned at mutual injection light path with the intersection point place of the first laser medium (3-1) place light path and becomes miter angle with the first laser medium (3-1) place light path; The second tunnel is injected mutually mirror component light microscopic (4-2) and is positioned at mutual injection light path with the intersection point place of the second laser medium (3-2) place light path and becomes miter angle with the second laser medium (3-2) place light path.
2. a kind of Multi-path lamp pump laser coherence synthesizing device based on prism of corner cube according to claim 1, is characterized in that, described first via laser and No. second laser are 3.
3. a kind of Multi-path lamp pump laser coherence synthesizing device based on prism of corner cube according to claim 1, it is characterized in that, the described first via is injected mutually mirror component light microscopic (4-1) and is arranged between the first laser medium (3-1) and outgoing mirror (5) or is arranged between the first laser medium (3-1) resonant cavity total reflective mirror (1).
4. a kind of Multi-path lamp pump laser coherence synthesizing device based on prism of corner cube according to claim 1, is characterized in that, described resonant cavity total reflective mirror (1) is prism of corner cube.
5. a kind of Multi-path lamp pump laser coherence synthesizing device based on prism of corner cube according to claim 1, is characterized in that, described pumping system (2) can be krypton lamp pumping or xenon flash lamp pumping.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107248693A (en) * | 2017-06-08 | 2017-10-13 | 中国人民解放军武汉军械士官学校 | A kind of adaptive drive device based on prism of corner cube coherent combining laser device |
| CN110026685A (en) * | 2019-05-24 | 2019-07-19 | 长春理工大学 | A kind of multi-path laser interference lithography system and method for polarization state in the same direction |
| CN111258079A (en) * | 2020-02-18 | 2020-06-09 | 中国科学院光电技术研究所 | Precise phase adjusting mechanism of laser retroreflector array and detection and adjustment method thereof |
| CN112490838A (en) * | 2020-11-30 | 2021-03-12 | 北京超快光子科技有限公司 | Regenerative amplification resonant cavity and laser system using same |
| CN113054525A (en) * | 2021-03-15 | 2021-06-29 | 中国工程物理研究院流体物理研究所 | Infrared laser coherent synthesis device and synthesis method |
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2013
- 2013-07-25 CN CN2013204478600U patent/CN203339468U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107248693A (en) * | 2017-06-08 | 2017-10-13 | 中国人民解放军武汉军械士官学校 | A kind of adaptive drive device based on prism of corner cube coherent combining laser device |
| CN107248693B (en) * | 2017-06-08 | 2020-10-16 | 中国人民解放军武汉军械士官学校 | Self-adaptive driving device based on pyramid prism coherent synthesis laser |
| CN110026685A (en) * | 2019-05-24 | 2019-07-19 | 长春理工大学 | A kind of multi-path laser interference lithography system and method for polarization state in the same direction |
| CN111258079A (en) * | 2020-02-18 | 2020-06-09 | 中国科学院光电技术研究所 | Precise phase adjusting mechanism of laser retroreflector array and detection and adjustment method thereof |
| CN112490838A (en) * | 2020-11-30 | 2021-03-12 | 北京超快光子科技有限公司 | Regenerative amplification resonant cavity and laser system using same |
| CN112490838B (en) * | 2020-11-30 | 2022-03-15 | 北京超快光子科技有限公司 | Regenerative amplification resonant cavity and laser system using same |
| CN113054525A (en) * | 2021-03-15 | 2021-06-29 | 中国工程物理研究院流体物理研究所 | Infrared laser coherent synthesis device and synthesis method |
| CN113054525B (en) * | 2021-03-15 | 2022-04-01 | 中国工程物理研究院流体物理研究所 | Infrared laser coherent synthesis device and synthesis method |
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Denomination of utility model: Multipath lamp pump laser coherent synthesis device based on pyramid prism Effective date of registration: 20150716 Granted publication date: 20131211 Pledgee: Wuhan rural commercial bank Limited by Share Ltd Optics Valley branch Pledgor: Wuhan Meiman Technology Co., Ltd. Registration number: 2015990000565 |
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