CN102545001A - Regenerative laser amplifier - Google Patents
Regenerative laser amplifier Download PDFInfo
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- CN102545001A CN102545001A CN2011102450381A CN201110245038A CN102545001A CN 102545001 A CN102545001 A CN 102545001A CN 2011102450381 A CN2011102450381 A CN 2011102450381A CN 201110245038 A CN201110245038 A CN 201110245038A CN 102545001 A CN102545001 A CN 102545001A
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- 230000001172 regenerating effect Effects 0.000 title claims abstract description 40
- 230000010287 polarization Effects 0.000 claims abstract description 158
- 230000000694 effects Effects 0.000 claims abstract description 16
- 239000013078 crystal Substances 0.000 claims description 16
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims description 13
- 229910052708 sodium Inorganic materials 0.000 claims description 13
- 239000011734 sodium Substances 0.000 claims description 13
- 230000028161 membrane depolarization Effects 0.000 abstract 2
- 230000003287 optical effect Effects 0.000 description 18
- 230000003321 amplification Effects 0.000 description 6
- 238000003199 nucleic acid amplification method Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 4
- 230000008030 elimination Effects 0.000 description 3
- 238000003379 elimination reaction Methods 0.000 description 3
- 239000012141 concentrate Substances 0.000 description 2
- 238000005388 cross polarization Methods 0.000 description 2
- 230000010355 oscillation Effects 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 230000002085 persistent effect Effects 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000035882 stress Effects 0.000 description 1
- 230000008646 thermal stress Effects 0.000 description 1
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Abstract
A regenerative laser amplifier can remove heat depolarization effect and is provided with a resonant cavity formed by two all-trans mirrors. An amplifier is arranged in the resonant cavity and arranged on a light path between the two all-trans mirrors. Two rotation devices are further arranged in the resonant cavity and respectively placed on two sides of the amplifier and in the light path between the two all-trans mirrors, and each rotation device can enable polarization direction of laser lighting to the inside of the rotation device to generate 45-degree deflection. The regenerative laser amplifier can enable polarization state of laser entering and leaving the regenerative laser amplifier not to be changed, remove the heat depolarization effect of working media in the laser amplifier, and improve laser quality.
Description
Technical field
The present invention relates to regenerative laser amplifier, particularly a kind of regenerative laser amplifier of eliminating hot fevering sodium effect.
Background technology
In the laser operation process; The pumping energy major part all changes into and dissipates the heat in the laser crystal; Reasons such as the inhomogeneous and hot transmission of pumping have caused the inhomogeneous of crystals Temperature Distribution; Form thermal stress, cause the skewness of crystal refractive index, make isotropic laser medium become anisotropy.Laser will distort before the laser wave during through anisotropic index medium, and linearly polarized light will produce hot fevering sodium effect after inciding the laser medium of stress birfringence.Hot fevering sodium effect greatly influences the quality of laser.
Therefore, how to eliminate hot fevering sodium effect or heat is moved back inclined to one side phenomenon carry out the difficult problem that necessary compensation just becomes the laser development.
Summary of the invention
The technical problem that the present invention solves provides a kind of regenerative laser amplifier of eliminating hot fevering sodium effect.
A kind of regenerative laser amplifier; It can eliminate hot fevering sodium effect, and said regenerative laser amplifier has a resonant cavity, and said resonant cavity is made up of two total reflective mirrors; Be provided with an amplifier in the said resonant cavity, in the light path of said amplifier between said two total reflective mirrors.Further be provided with two polarization apparatuss in the said resonant cavity; Said two polarization apparatuss are arranged at respectively in the both sides and the light path between said two total reflective mirrors of said amplifier, and each said polarization apparatus all can make the polarization direction that is incident to the laser in it produce 45 degree deflections.
Compared to prior art; The amplifier both sides of regenerative laser amplifier provided by the invention in resonant cavity are provided with a polarization apparatus respectively, utilize said polarization apparatus to make the polarization direction of incident laser produce 45 degree deflections, cooperate the total reflective mirror that constitutes resonant cavity again; Adjustment is revised in polarization direction to laser; Keep polarization direction consistent after laser incident and the ejaculation, and then can eliminate the hot fevering sodium effect of working media in the laser amplifier effectively, improve the work quality of corresponding laser.
Description of drawings
Fig. 1 is the structural representation of the regenerative laser amplifier that provides of first embodiment of the invention.
Fig. 2 be regenerative laser amplifier shown in Figure 1 in the course of the work, the sketch map that laser polarization state changes.
Fig. 3 is the structural representation of the regenerative laser amplifier that provides of second embodiment of the invention.
Fig. 4 be regenerative laser amplifier shown in Figure 3 in the course of the work, the sketch map that laser polarization state changes.
Embodiment
To combine accompanying drawing and embodiment that the present invention is described further below.
See also Fig. 1; A kind of regenerative laser amplifier 100 that first embodiment of the invention provides; It can eliminate hot fevering sodium effect; Said regenerative laser amplifier 100 comprises first polarising beam splitter (Polarizing Beaming Splitter, PBS) 11, half-wave plate 12, first polarization apparatus 13, second polarising beam splitter 14, electrooptic crystal 15, quarter-wave plate 16, first total reflective mirror 17, second polarization apparatus 18, amplifier 19, the 3rd polarization apparatus 110, second total reflective mirror 111.
Said first polarising beam splitter 11, said half-wave plate 12, said first polarization apparatus 13, said second polarising beam splitter 14, said electrooptic crystal 15, said quarter-wave plate 16 and said first total reflective mirror 17 are provided with along first direction order successively.Said second total reflective mirror 111 is arranged at the second direction vertical with said first direction, and relative with said second polarising beam splitter 14.Said second polarization apparatus 18, said amplifier 19 and said the 3rd polarization apparatus 110 are set in sequence between said second polarising beam splitter 14 and said second total reflective mirror 111 along said second direction successively.Said second polarising beam splitter 14, said electrooptic crystal 15 and said quarter-wave plate 16 are all in the light path between said first total reflective mirror 17 and said second total reflective mirror 111.Said second polarization apparatus 18 and said the 3rd polarization apparatus 110 are arranged at respectively in the both sides and the light path between said first total reflective mirror 17 and said second total reflective mirror 111 of said amplifier 19.
In the present embodiment, said first direction and said second direction are rectilinear direction.
Said first total reflective mirror 17 and said second total reflective mirror 111 all are used to make the laser generation total reflection of incident, to reduce the energy loss in the laser light path.First total reflective mirror 17 and second total reflective mirror 111 constitute the optical resonator of regenerative laser amplifier 100; Be used to provide bulk of optical feedback; The stimulated radiation photon is is repeatedly come and gone to form relevant persistent oscillation within it; And direction and the frequency that comes and goes the vibration light beam in the optical resonator limited, to guarantee to export laser with certain directionality and monochromaticjty.After second polarising beam splitter 14 beam split of optical resonator emitting laser in optical resonator, successively through first polarization apparatus 13, half-wave plate 12, and finally by penetrating after 11 beam split of first polarising beam splitter.
Said quarter-wave plate 16, said electrooptic crystal 15, said second polarising beam splitter 14, said second polarization apparatus 18, said amplifier 19 and said second polarization apparatus 110 all are arranged in the optical resonator.
Said first polarization apparatus 13, said second polarization apparatus 18 and said the 3rd polarization apparatus 110 are Faraday polarization apparatus, are used for the polarization direction of the polarised light that passes through by clockwise or 45 degree of deflection counterclockwise.
Said electrooptic crystal 15 is used to regulate the Q value.
Said amplifier 19 is a laser multipass amplifier, is used to improve the power or the energy of laser beam, to obtain the laser beam of better quality.
Preferably; Second polarization apparatus 18 in the said regenerative laser amplifier 100 and the 3rd polarization apparatus 110 are Faraday polarization apparatus in the same way; That is, second polarization apparatus 18 in the present embodiment and the 3rd polarization apparatus 110 are clockwise Faraday polarization apparatus or are counterclockwise Faraday polarization apparatus.
The hot fevering sodium effect operation principle of the elimination of regenerative laser amplifier 100 is described below:
Please consult Fig. 2 in the lump, Fig. 2 be said regenerative laser amplifier 100 in the course of the work, the sketch map that laser polarization state changes.It is that example is specifically introduced that present embodiment is counterclockwise Faraday polarization apparatus with second polarization apparatus 18 and the 3rd polarization apparatus 110.
Incident laser gets into first polarising beam splitter 11 from direction a shown in Figure 1, pass through half-wave plate 12, first polarization apparatus 13 then successively after, get into second polarising beam splitter 14, promptly get into feedback and amplification that optical resonator carries out laser; After the repeatedly total reflection through first total reflective mirror 17 and second total reflective mirror 111; The direction that laser is opposite with direction a from second polarising beam splitter, 14 edges penetrates; And successively through first polarization apparatus 13, half-wave plate 12, afterwards at first polarising beam splitter 11 along direction b outgoing.
The process of wherein eliminating hot fevering sodium effect mainly concentrates in the optical resonator, particularly, and in optical resonator; As shown in Figure 2; Laser with polarization direction 1 gets into second polarization apparatus 18, and behind second polarization apparatus 18, the polarization direction of laser is rotated counterclockwise 45 degree to the polarization direction 2; And get into amplifiers 19 with polarization direction 2 and carry out power amplification; Laser after amplifier 19 amplifies gets into the 3rd polarization apparatus 110, and behind the 3rd polarization apparatus 110, the polarization direction of laser is rotated counterclockwise 45 degree once more to the polarization direction 3; Laser gets into the 3rd polarization apparatus 110 after by the reflection of second total reflective mirror 111 once more then, and behind the 3rd polarization apparatus 110, the polarization direction of laser is rotated counterclockwise 45 degree for the third time to the polarization direction 4; Laser keeps polarization direction 4 to get into amplifier 19 for the second time then, and through after getting into amplifier 19 for the second time and carrying out power amplification, the polarization direction of laser is rotated counterclockwise 45 degree for the 4th time to the polarization direction 5.
Can be found out that by Fig. 2 polarization direction 5 is consistent polarization direction with polarization direction 1, laser has promptly kept original polarization direction thus.
It is understandable that; The polarization direction 2 of directive the 3rd polarization apparatus 110 of laser alignment and the polarization direction quadrature of the second time from 110 outgoing of the 3rd polarization apparatus; Thus; The laser of cross-polarization radially compensates the heat that working media in the laser amplifier produces with tangential polarisation component through exchange and moves back partially, and then the polarization state of the laser of entering and outgoing regenerative laser amplifier 100 is remained unchanged, and eliminates in the laser amplifier heat of working media effectively and moves back inclined to one side phenomenon.
It is understandable that; When second polarization apparatus 18 and the 3rd polarization apparatus 110 are clockwise Faraday polarization apparatus; The heat that can obtain working media in the said regenerative laser amplifier 100 elimination laser amplifiers is equally moved back the effect of inclined to one side phenomenon; At this moment, the polarization direction of laser will change according to the clockwise direction opposite with variation shown in Figure 2, and concrete principle repeats no more at this.
See also Fig. 3; It is a kind of regenerative laser amplifier 200 that second embodiment of the invention provides; Its basic structure is identical with the basic structure of the regenerative laser amplifier 100 that first embodiment of the invention provides; Comprise first polarising beam splitter 21, half-wave plate 22, first polarization apparatus 23, second polarising beam splitter 24, electrooptic crystal 25, quarter-wave plate 26, first total reflective mirror 27, second polarization apparatus 28, amplifier 29, the 3rd polarization apparatus 210, second total reflective mirror 211.
Said first polarising beam splitter 21, said half-wave plate 22, said first polarization apparatus 23, said second polarising beam splitter 24, said electrooptic crystal 25, said quarter-wave plate 26 and said first total reflective mirror 27 are provided with along first direction order successively.Said second total reflective mirror 211 is arranged at the second direction vertical with said first direction, and relative with said second polarising beam splitter 24.Said second polarization apparatus 28, said amplifier 29 and said the 3rd polarization apparatus 210 are set in sequence between said second polarising beam splitter 24 and said second total reflective mirror 211 along said second direction successively.
Said second polarising beam splitter 24, said electrooptic crystal 25 and said quarter-wave plate 26 are all in the light path between said first total reflective mirror 27 and said second total reflective mirror 211.Said second polarization apparatus 28 and said the 3rd polarization apparatus 210 are arranged at respectively in the both sides and the light path between said first total reflective mirror 27 and said second total reflective mirror 211 of said amplifier 29.
In the present embodiment, said first direction and said second direction are rectilinear direction.
Said first total reflective mirror 27 and said second total reflective mirror 211 all are used to make the laser generation total reflection of incident, to reduce the energy loss in the laser light path.First total reflective mirror 27 and second total reflective mirror 211 constitute the optical resonator of regenerative laser amplifier 200; Be used to provide bulk of optical feedback; The stimulated radiation photon is is repeatedly come and gone to form relevant persistent oscillation within it; And direction and the frequency that comes and goes the vibration light beam in the optical resonator limited, to guarantee to export laser with certain directionality and monochromaticjty.After second polarising beam splitter 24 beam split of optical resonator emitting laser in optical resonator, successively through first polarization apparatus 23, half-wave plate 22, and finally by penetrating after 21 beam split of first polarising beam splitter.
Said quarter-wave plate 26, said electrooptic crystal 25, said second polarising beam splitter 24, said second polarization apparatus 28, said amplifier 29 and said second polarization apparatus 210 all are arranged in the optical resonator.
Said first polarization apparatus 23, said second polarization apparatus 28 and said the 3rd polarization apparatus 210 are Faraday polarization apparatus, are used for the polarization polarization state of light of passing through according to clockwise or 45 degree of deflection counterclockwise.
Said electrooptic crystal 25 is used to regulate the Q value.
Said amplifier 29 is a laser multipass amplifier, is used to improve the power or the energy of laser beam, to obtain the laser beam of better quality.
Preferably; Second polarization apparatus 28 in the said regenerative laser amplifier 200 and the 3rd polarization apparatus 210 are reverse Faraday polarization apparatus; That is, second polarization apparatus 28 in the present embodiment is clockwise Faraday polarization apparatus, and the 3rd polarization apparatus 210 is counterclockwise Faraday polarization apparatus; Perhaps second polarization apparatus 28 is counterclockwise Faraday polarization apparatus, and the 3rd polarization apparatus 210 is clockwise Faraday polarization apparatus.
The hot fevering sodium effect operation principle of the elimination of regenerative laser amplifier 200 is described below:
Please consult Fig. 4 simultaneously, Fig. 4 be said regenerative laser amplifier 200 in the course of the work, the sketch map that laser polarization state changes.Be counterclockwise Faraday polarization apparatus with second polarization apparatus 28 in the present embodiment, the 3rd polarization apparatus 210 is that example is specifically introduced for clockwise Faraday polarization apparatus.
Incident laser gets into first polarising beam splitter 21 from direction a shown in Figure 3, pass through half-wave plate 22, first polarization apparatus 23 then successively after, get into second polarising beam splitter 24, promptly get into feedback and amplification that optical resonator carries out laser; Through after the repeatedly total reflection of first total reflective mirror 27 and second total reflective mirror 211; The direction that laser is opposite with direction a from second polarising beam splitter, 24 edges penetrates; And successively through first polarization apparatus 23, half-wave plate 22, afterwards at first polarising beam splitter 21 along direction b outgoing.
The process of wherein eliminating hot fevering sodium effect mainly concentrates in the optical resonator, particularly, and in optical resonator; As shown in Figure 4; Laser with polarization direction 1 gets into second polarization apparatus 28, and behind second polarization apparatus 28, the polarization direction of laser is rotated counterclockwise 45 degree to the polarization direction 2; And get into amplifiers 29 with polarization direction 2 and carry out power amplification; Laser after amplifying through amplifier 29 gets into the 3rd polarization apparatus 210, behind the 3rd polarization apparatus 210, the polarization direction of laser turn clockwise 45 degree to the polarization direction 3 (overlapping) with polarization direction 1; Laser gets into the 3rd polarization apparatus 210 after by the reflection of second total reflective mirror 211 once more then, and behind the 3rd polarization apparatus 210, the polarization direction of laser turns clockwise 45 degree once more to the polarization direction 4; Laser keeps polarization direction 4 to get into amplifier 29 for the second time then; After process amplifier 29 carries out power amplification; Laser gets into second polarization apparatus 2, and behind second polarization apparatus 2, the polarization direction of laser is rotated counterclockwise 45 once more and spends to the polarization direction 5 (overlapping with polarization direction 1).
Can be found out that by Fig. 4 polarization direction 5 is consistent polarization direction with polarization direction 1, laser has promptly kept former polarization direction thus.
It is understandable that; The polarization direction 2 of directive the 3rd polarization apparatus 210 of laser alignment and the polarization direction quadrature of the second time from 210 outgoing of the 3rd polarization apparatus; Thus; The laser of cross-polarization radially compensates the heat that working media in the laser amplifier produces with tangential polarisation component through exchange and moves back partially, and then the polarization state of the laser of entering and outgoing regenerative laser amplifier 200 is remained unchanged, and eliminates in the laser amplifier heat of working media effectively and moves back inclined to one side phenomenon.
It is understandable that; When second polarization apparatus 28 is clockwise Faraday polarization apparatus; When the 3rd polarization apparatus 210 is counterclockwise Faraday polarization apparatus; Its operation principle is similar with regenerative laser amplifier 200 operation principles of second execution mode, and the polarization direction of laser will change according to the Changing Pattern opposite with variation shown in Figure 4, repeats no more at this.
In the above-described embodiments, only the present invention has been carried out exemplary description, but those skilled in the art can carry out various modifications to the present invention after reading present patent application under the situation that does not break away from the spirit and scope of the present invention.
Claims (7)
1. regenerative laser amplifier; It can eliminate hot fevering sodium effect; Said regenerative laser amplifier has a resonant cavity, and said resonant cavity is made up of two total reflective mirrors, is provided with an amplifier in the said resonant cavity; In the light path of said amplifier between said two total reflective mirrors; It is characterized in that: further be provided with two polarization apparatuss in the said resonant cavity, said two polarization apparatuss are arranged at respectively in the both sides and the light path between said two total reflective mirrors of said amplifier, and each said polarization apparatus all can make the polarization direction that is incident to the laser in it produce 45 degree deflections.
2. regenerative laser amplifier as claimed in claim 1; It is characterized in that; Said regenerative laser amplifier further comprises one first polarising beam splitter, a half-wave plate, first polarization apparatus, second polarising beam splitter, an electrooptic crystal and a quarter-wave plate, and said two total reflective mirrors comprise one first total reflective mirror and one second total reflective mirror; Said first polarising beam splitter, said half-wave plate, said first polarization apparatus, said second polarising beam splitter, said electrooptic crystal, said quarter-wave plate and said first total reflective mirror are provided with along first direction order successively, and said second polarising beam splitter, said electrooptic crystal and said quarter-wave plate are all in the light path between said first total reflective mirror and said second total reflective mirror; Said second total reflective mirror is arranged at the second direction vertical with said first direction, and relative with said second polarising beam splitter; The polarization apparatus of said amplifier and both sides thereof is set in sequence between said second polarising beam splitter and said second total reflective mirror along said second direction successively.
3. regenerative laser amplifier as claimed in claim 1 is characterized in that, said two polarization apparatuss are Faraday polarization apparatus.
4. regenerative laser amplifier as claimed in claim 1 is characterized in that, said two polarization apparatuss are counterclockwise polarization apparatus, perhaps are clockwise optically-active device, and perhaps one of them is that clockwise optically-active device, another polarization apparatus are counterclockwise polarization apparatus.
5. regenerative laser amplifier as claimed in claim 2 is characterized in that, said first polarization apparatus is a Faraday polarization apparatus, can make the polarization direction that is incident to the laser in it produce 45 degree deflections.
6. regenerative laser amplifier as claimed in claim 2 is characterized in that, said first direction and said second direction are rectilinear direction.
7. regenerative laser amplifier as claimed in claim 1 is characterized in that, said amplifier is a laser multipass amplifier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110245038.1A CN102545001B (en) | 2011-08-25 | 2011-08-25 | Regenerative laser amplifier |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110245038.1A CN102545001B (en) | 2011-08-25 | 2011-08-25 | Regenerative laser amplifier |
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| Publication Number | Publication Date |
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| CN102545001A true CN102545001A (en) | 2012-07-04 |
| CN102545001B CN102545001B (en) | 2014-03-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201110245038.1A Expired - Fee Related CN102545001B (en) | 2011-08-25 | 2011-08-25 | Regenerative laser amplifier |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106384932A (en) * | 2016-11-29 | 2017-02-08 | 中国工程物理研究院激光聚变研究中心 | Multi-pass laser amplifier based on wavefront distortion correction and usage method thereof |
| CN106451054A (en) * | 2016-11-29 | 2017-02-22 | 中国工程物理研究院激光聚变研究中心 | Thermal depolarization complete compensation device in multi-pass laser amplifier and use method of device |
| CN108306169A (en) * | 2018-01-02 | 2018-07-20 | 中国科学院上海光学精密机械研究所 | Wide band high-gain generating magnifier based on polarization encoder technology |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3918007A (en) * | 1974-03-25 | 1975-11-04 | Rca Corp | Fabry-perot polarization laser beam modulator |
| US6384966B1 (en) * | 1999-11-03 | 2002-05-07 | Time-Bandwidth Products Ag | Multiple pass optical amplifier with thermal birefringence compensation |
| CN201435523Y (en) * | 2009-03-19 | 2010-03-31 | 北京理工大学 | Side-pumping and conduction cooling rectangular sheet laser |
| CN201541050U (en) * | 2009-12-16 | 2010-08-04 | 温州市嘉泰激光科技有限公司 | Double-output end-face pump whole solid state laser |
-
2011
- 2011-08-25 CN CN201110245038.1A patent/CN102545001B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3918007A (en) * | 1974-03-25 | 1975-11-04 | Rca Corp | Fabry-perot polarization laser beam modulator |
| US6384966B1 (en) * | 1999-11-03 | 2002-05-07 | Time-Bandwidth Products Ag | Multiple pass optical amplifier with thermal birefringence compensation |
| CN201435523Y (en) * | 2009-03-19 | 2010-03-31 | 北京理工大学 | Side-pumping and conduction cooling rectangular sheet laser |
| CN201541050U (en) * | 2009-12-16 | 2010-08-04 | 温州市嘉泰激光科技有限公司 | Double-output end-face pump whole solid state laser |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106384932A (en) * | 2016-11-29 | 2017-02-08 | 中国工程物理研究院激光聚变研究中心 | Multi-pass laser amplifier based on wavefront distortion correction and usage method thereof |
| CN106451054A (en) * | 2016-11-29 | 2017-02-22 | 中国工程物理研究院激光聚变研究中心 | Thermal depolarization complete compensation device in multi-pass laser amplifier and use method of device |
| CN106451054B (en) * | 2016-11-29 | 2023-07-21 | 中国工程物理研究院激光聚变研究中心 | Thermal depolarization complete compensation device of multi-pass laser amplifier and application method thereof |
| CN106384932B (en) * | 2016-11-29 | 2023-08-11 | 中国工程物理研究院激光聚变研究中心 | Multi-pass laser amplifier based on wavefront distortion correction and application method thereof |
| CN108306169A (en) * | 2018-01-02 | 2018-07-20 | 中国科学院上海光学精密机械研究所 | Wide band high-gain generating magnifier based on polarization encoder technology |
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| CN102545001B (en) | 2014-03-12 |
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