CN110190492A - Laser amplifier - Google Patents
Laser amplifier Download PDFInfo
- Publication number
- CN110190492A CN110190492A CN201910290190.8A CN201910290190A CN110190492A CN 110190492 A CN110190492 A CN 110190492A CN 201910290190 A CN201910290190 A CN 201910290190A CN 110190492 A CN110190492 A CN 110190492A
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- Prior art keywords
- gain media
- signal light
- reflecting mirror
- lens
- laser
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- 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.)
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/05—Construction or shape of optical resonators; Accommodation of active medium therein; Shape of active medium
- H01S3/06—Construction or shape of active medium
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/05—Construction or shape of optical resonators; Accommodation of active medium therein; Shape of active medium
- H01S3/08—Construction or shape of optical resonators or components thereof
- H01S3/08059—Constructional details of the reflector, e.g. shape
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/05—Construction or shape of optical resonators; Accommodation of active medium therein; Shape of active medium
- H01S3/08—Construction or shape of optical resonators or components thereof
- H01S3/08072—Thermal lensing or thermally induced birefringence; Compensation thereof
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/05—Construction or shape of optical resonators; Accommodation of active medium therein; Shape of active medium
- H01S3/08—Construction or shape of optical resonators or components thereof
- H01S3/081—Construction or shape of optical resonators or components thereof comprising three or more reflectors
- H01S3/0813—Configuration of resonator
- H01S3/0815—Configuration of resonator having 3 reflectors, e.g. V-shaped resonators
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/10—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating
- H01S3/10061—Polarization control
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/14—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range characterised by the material used as the active medium
- H01S3/16—Solid materials
- H01S3/163—Solid materials characterised by a crystal matrix
- H01S3/164—Solid materials characterised by a crystal matrix garnet
- H01S3/1643—YAG
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- Optics & Photonics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Lasers (AREA)
Abstract
The invention discloses a kind of laser amplifiers, the laser amplifier includes: the matching lens and gain media set gradually along direction of laser propagation, the distance between equivalent lens of thermal lensing effect of the matching lens and the gain media is target range, and the target range is the sum of focal length and focal length of the equivalent lens of the matching lens；Wherein, the matching lens are used for transmission signal light；It is described to state gain media, for amplifying by the signal light on the matching lens entrance to the gain media.The laser amplifier of the embodiment of the present invention can compensate for the thermal lensing effect of gain media, avoids the signal light of amplification and the gain regions mismatch of gain media, improves amplified beam quality and energy extraction efficiency.
Description
Technical field
The present invention relates to field of laser device technology more particularly to a kind of laser amplifiers.
Background technique
Great-power solid laser is in necks such as material processing, particle acceleration, the generation of strong X-ray and laser inertial confinement fusions
Domain has very extensive application.But the factors such as optical component damage threshold are limited to, directly from mode locking oscillator and tune Q vibration
The ability for swinging the pulse laser obtained in device is limited.Currently in order to improving pulse energy obtains great-power solid laser,
The mode for generalling use laser amplifier carries out oscillator pulses for several times or tens of time amplifications, to obtain 103~107Energy again
Flow gain.
During amplifying pulse laser by laser amplifier, need to be situated between to the gain in laser amplifier
Matter is pumped, but under the action of high power pump light, gain media can generate serious thermal lensing effect, thermal lens effect
The laser beam propagation of amplifier can should be had an impact, lead to the signal light of amplification and the gain regions mismatch of gain media,
Influence amplified beam quality and energy extraction efficiency.
Summary of the invention
The embodiment of the present invention provides a kind of laser amplifier, to solve gain media under the action of high power pump light
Thermal lensing effect is generated, leads to the signal light of amplification and the gain regions mismatch of gain media, influences amplified beam quality
And the problem of energy extraction efficiency.
In order to solve the above-mentioned technical problem, the present invention is implemented as follows:
A kind of laser amplifier is provided, which includes: that the matching that sets gradually along direction of laser propagation is saturating
The distance between the equivalent lens of thermal lensing effect of mirror and gain media, the matching lens and the gain media is target
Distance, the target range are the sum of focal length and focal length of the equivalent lens of the matching lens；
Wherein, the matching lens, for penetrating signal light；
The gain media, for amplifying by the signal light on the matching lens entrance to the gain media.
In embodiments of the present invention, matching the distance between lens and the equivalent lens of thermal lensing effect of gain media are
The sum of focal length and the focal length of equivalent lens of lens are matched, so that signal light is by being still close flat after matching lens and gain media
Row light, compensates for the thermal lensing effect of gain media, so that the signal light of amplification and the gain regions mismatch of gain media are avoided,
Improve amplified beam quality and energy extraction efficiency.
Detailed description of the invention
The drawings described herein are used to provide a further understanding of the present invention, constitutes a part of the invention, this hair
Bright illustrative embodiments and their description are used to explain the present invention, and are not constituted improper limitations of the present invention.In the accompanying drawings:
Fig. 1 is the structural schematic diagram of laser amplifier according to an embodiment of the invention.
Fig. 2 is the structural schematic diagram of laser amplifier according to another embodiment of the invention.
Fig. 3 is the structural schematic diagram of the laser amplifier of still another embodiment in accordance with the present invention.
Fig. 4 is the structural schematic diagram of laser amplifier according to an embodiment of the invention.
Fig. 5 is the structural schematic diagram of the optical isolation device of still another embodiment in accordance with the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are some of the embodiments of the present invention, instead of all the embodiments.Based on this hair
Embodiment in bright, every other implementation obtained by those of ordinary skill in the art without making creative efforts
Example, shall fall within the protection scope of the present invention.
Fig. 1 is the structural schematic diagram of laser amplifier according to an embodiment of the invention.As illustrated in FIG. 1, laser
Amplifier 10 includes: the matching lens 11 and gain media 12 set gradually along direction of laser propagation, matches lens 11 and gain
The distance between equivalent lens of thermal lensing effect of medium be target range, target range be matching lens focal length with it is equivalent
The sum of focal length of lens；Wherein, lens 11 are matched, transmission signal light is used for；Gain media 12, for amplifying through overmatching lens
The signal light being incident on gain media 12.
It is understood that matching lens 11 are convex lens.The equivalent lens of the thermal lensing effect of gain media 11 can also
To be known as " thermal lens ", the focal length of equivalent lens can change with the change of the pump power of injection, can pass through theoretical mould
Quasi- or experiment measurement mode obtains the focal length of the equivalent lens of the thermal lensing effect of gain media 11, and the embodiment of the present invention is to this
It is not construed as limiting.
For example, as shown in Figure 1, it is assumed that the focal length of matching lens 11 is f, and the focal length of equivalent lens is fT,
Matching the distance between lens 11 and equivalent lens is L, then L=f+fT。
And, it is assumed that the beam diameter for being incident on the signal light on matching lens 11 is D1, is incident on gain media 12
Signal light beam diameter be D2, then it is available:Thus, it is possible to pass through the matching lens of selection different focal length
11, the beam diameter for the signal light being incident on gain media 12 is flexibly controlled, to realize the good of signal light and gain regions
Good matching, and then obtain higher energy extraction efficiency and preferable beam quality.
Optionally, as an example, as illustrated in FIG. 2, laser amplifier 10 shown in FIG. 1 further includes the first reflection
Mirror 13 and optical isolation device 14, the first reflecting mirror 13 are arranged along direction of laser propagation, and are located at after gain media 12, optical isolation
Device 14 is arranged along direction of laser propagation, and is located at before matching lens 11；First reflecting mirror 13 is used for transmittance gain medium 12
Pump light, and reflect pass through the amplified signal light of gain media；Optical isolation device 14 exports amplified letter for being isolated
Number light.Thereby, it is possible to realize the coaxial MOPA system of signal light.
Optionally, as another example, as illustrated in FIG. 3, laser amplifier 10 further includes the first polarization analyzer
15, quarter-wave plate 16 and the second reflecting mirror 17；First polarization analyzer 15 and quarter-wave plate 16 are along laser propagation side
To setting, the first polarization analyzer 15 is located at after optical isolation device 14 and is located at before quarter-wave plate 16, the second reflection
The reflecting surface of mirror 17 is parallel to direction of laser propagation；First polarization analyzer 15, for being transmitted through the letter of optical isolation device 14
Number light, by gain media 12, amplified signal light reflexes to the second reflecting mirror 17 twice, and the second reflecting mirror 17 is reflected back
Signal light reflex to quarter-wave plate；Second reflecting mirror 17 passes through gain for reflect the first polarization analyzer 15
Amplified signal light is transmitted back to the first polarization analyzer 15 to medium 12 twice.It is possible thereby to realize that the coaxial quadruple pass of signal light is put
Greatly.
The first polarization analyzer in Fig. 3 is polarizing film or beam splitter PBS.But the embodiment of the present invention is not limited to this, the
One polarization analyzer can be the optical device of any polarization state for being able to detect light.
Specifically, it is assumed that the signal light by optical isolation device 14 is horizontal polarization light, and signal light is by the first polarization
It is circularly polarized light after analyzer 15 and quarter-wave plate 16, signal light is incident to gain media through overmatching lens 11 later
On 12, it is incident to the first reflecting mirror 13 after realizing primary amplification, again passes by gain media 12 after the return of the first reflecting mirror 13
It amplifies, amplified signal light exports after overmatching lens 11 to quarter-wave plate 16, becomes vertical polarization at this time
Light, orthogonal polarized light are incident to the first polarization analyzer 15, reflex to the second reflecting mirror 17 through the first polarization analyzer 15, later
Orthogonal polarized light backtracking to the first polarization analyzer 15, first is polarized analyzer 15 for vertical polarization by the second reflecting mirror 17
Light reflexes to quarter-wave plate 16, is incident on gain media 12 through overmatching lens 11 later, realizes that third time is amplified, the
Amplified signal light is incident to the first reflecting mirror 13 three times, realizes the by gain media 12 after the reflection of the first reflecting mirror 13
Four amplifications, the 4th amplified signal light are exported via matching lens 11 to quarter-wave plate 16, through quarter-wave
Become horizontal polarization light after piece 16, is incident to optical isolation device 14, optical isolation device 14 by the first polarization analyzer 15 later
Realize the output of the signal light by four amplifications.
Optionally, as further example, as illustrated in FIG. 4, the normal direction and laser propagation of the first reflecting mirror 11
Angle between mode is target angle, and target angle is greater than with the product of target range is incident on the signal light matched on lens
Beam diameter, laser amplifier 10 further includes triangular prism 18 and third reflecting mirror 19, triangular prism 18 and third reflecting mirror
19 deviate direction of laser propagation setting；Wherein, triangular prism 18, for the amplified signal light twice of gain media 12 will to be passed through
Third reflecting mirror 19 is reflexed to, and the signal light that third reflecting mirror 19 returns is reflexed into matching lens 11；Third reflecting mirror 19
Triangular prism 18 is reflected back in amplified signal light original road twice by gain media 12 for reflect triangular prism 18.By
This, may be implemented the off-axis quadruple pass amplification of signal light.
Specifically, it is assumed that the signal light by optical isolation device 14 is horizontal polarization light, and the signal light of horizontal polarization passes through
Overmatching lens 11 are incident on gain media 12, the first reflecting mirror 13 are incident to after realizing primary amplification, through the first reflecting mirror
13 return after again pass by gain media 12 and amplify, it is assumed that the normal of the first reflecting mirror and the angle of optical propagation direction are Δ
θ, then the angle being incident between the signal light of the first reflecting mirror 13 and the signal light by the reflection of the first reflecting mirror is 2 Δ θ, and
L* Δ θ > D1, thus, it is possible to the signal light for reflecting the first reflecting mirror of mirror 13 and the signal light point for being incident to the first reflecting mirror 13
It leaves and.By gain media 12, amplified signal light is exported after overmatching lens 11 to triangular prism 18, through three again
Angle prism 18 reflexes to third reflecting mirror 19, and third reflecting mirror 19 is by signal light backtracking to triangular prism 18, triangle later
Signal light is reflexed to matching lens 11 by prism 18 again, so that the signal light of horizontal polarization is incident to increasing through overmatching lens 11
On beneficial medium 12, realize that third time is amplified, the amplified signal light of third time is incident to the first reflecting mirror 13, through the first reflecting mirror
The 4th amplification is realized by gain media 12 after 13 reflections, and the 4th time amplified signal edge is incident to gain media 12 for the first time
When the opposite direction in direction exported by matching lens 11 to optical isolation device 14, optical isolation device 14 is realized by four amplifications
The output of signal light.
On the basis of above-mentioned all embodiments, as illustrated in FIG. 5, optical isolation device 14 includes along direction of laser propagation
The second polarization analyzer 141, Faraday polarization apparatus 142 and the half wave plate 143 set gradually.Faraday polarization apparatus 142
It is constant that combination with half wave plate 143 makes the polarised light of normal propagation by the combination retrodeviate polarization state, and makes reversed anti-
The polarised light being emitted back towards retrodeviates polarization state by the combination and is rotated by 90 °.
As an example, the second polarization analyzer 141 is polarizing film or PBS, but the embodiment of the present invention is not limited to this,
Second polarization analyzer can be the optical device of any polarization state for being able to detect light.
For example, it is assumed that the light for being incident on the second polarization analyzer 141 is horizontal polarization light, horizontal polarization light passes through faraday
It is still horizontal polarization light after polarization apparatus 142 and half wave plate 143, horizontal polarization light is incident on matching lens 11 later
On, it is incident on after overmatching lens 11 on gain media 12, is transmitted to the first reflection after gain media 12 once amplification
On mirror 13, through 13 reflected back into gain medium 12 of the first reflecting mirror, matching lens 11 are transmitted to after gain media amplifies again, it
It is changed into orthogonal polarized light after half wave plate 143 and Faraday polarization apparatus 142 afterwards, orthogonal polarized light is incident on second
After polarizing analyzer 141, by the second polarization reflection output of analyzer 141.
Gain media in the above embodiment of the present invention is Nd:YAG, Nd:YVO4One of with Yb:YAG.In the present invention
The pump mode for stating the gain media in embodiment is one of end pumping and profile pump.
But it is understood that above-mentioned gain media or pump mode are only to illustrate, not to the embodiment of the present invention
Range constitute limit.Gain media in the embodiment of the present invention can also be other gain medias outside above-mentioned gain media,
Pump mode can be other pump modes outside the mode of said pump Pu.
Finally, it should be noted that, the above description is only an embodiment of the present invention, is not intended to restrict the invention.
To those skilled in the art, the invention may be variously modified and varied.It is all within the spirit and principles of the present invention
Any modification, equivalent replacement, improvement and so on should be included within scope of the presently claimed invention.
Claims (10)
1. a kind of laser amplifier characterized by comprising
The matching lens and gain media set gradually along direction of laser propagation, the heat of the matching lens and the gain media
The distance between equivalent lens of lens effect is target range, and the target range is the matching focal length of lens and described
The sum of focal length of equivalent lens；
Wherein, the matching lens are used for transmission signal light；
The gain media, for amplifying by the signal light on the matching lens entrance to the gain media.
2. laser amplifier according to claim 1, which is characterized in that the laser amplifier further includes the first reflecting mirror
With optical isolation device, first reflecting mirror along direction of laser propagation be arranged, and be located at the gain media after, the light every
It is arranged from device along direction of laser propagation, and is located at before the matching lens；
First reflecting mirror for transmiting the pump light for pumping the gain media, and is reflected and is put by the gain media
Signal light after big；
The optical isolation device exports amplified signal light for being isolated.
3. laser amplifier according to claim 2, which is characterized in that the laser amplifier further includes the inspection of the first polarization
Inclined device, quarter-wave plate and the second reflecting mirror；
Wherein, the first polarization analyzer and the quarter-wave plate are arranged along direction of laser propagation, first polarization
Analyzer is located at after the optical isolation device and is located at before the quarter-wave plate, the reflecting surface of second reflecting mirror
It is parallel to direction of laser propagation；
The first polarization analyzer will pass through the gain media for being transmitted through the signal light of the optical isolation device
Amplified signal light reflexes to second reflecting mirror twice, and the signal light that second reflecting mirror is reflected back is reflexed to
The quarter-wave plate；
Second reflecting mirror, it is amplified twice by the gain media for reflecting the first polarization analyzer
Signal light original road is reflected back the first polarization analyzer.
4. laser amplifier according to claim 3, which is characterized in that the first polarization analyzer is polarizing film or beam splitting
Mirror PBS.
5. laser amplifier according to claim 2, which is characterized in that the normal direction and laser of first reflecting mirror
Angle between the direction of propagation is target angle, and the product of the target angle and the target range, which is greater than, is incident on described
Beam diameter with the signal light on lens, the laser amplifier further include triangular prism and third reflecting mirror, the triangle
Prism and the third reflecting mirror deviate direction of laser propagation setting；
Wherein, the triangular prism, for that will pass through the gain media, amplified signal light will reflex to the third twice
Reflecting mirror, and the signal light returned from the third reflecting mirror is reflexed into the matching lens；
The third reflecting mirror, for by the triangular prism reflect by the gain media amplified signal light twice
Former road is reflected back the triangular prism.
6. the laser amplifier according to any one of claim 2 to 5, which is characterized in that the optical isolation device includes
The second polarization analyzer, Faraday polarization apparatus and the half wave plate set gradually along direction of laser propagation.
7. laser amplifier according to claim 6, which is characterized in that the Faraday polarization apparatus and the half
The combination of wave plate retrodeviate the polarised light of forward-propagating by the combination polarization state is constant, and the polarised light for making back reflection return
Polarization state is retrodeviated by the combination to be rotated by 90 °.
8. laser amplifier according to claim 6, which is characterized in that the second polarization analyzer is polarizing film or divides
Beam mirror PBS.
9. laser amplifier according to any one of claim 1 to 4, which is characterized in that the gain media is Nd:
YAG、Nd:YVO4One of with Yb:YAG.
10. laser amplifier according to any one of claim 1 to 4, which is characterized in that the pumping of the gain media
Mode is one of end pumping and profile pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910290190.8A CN110190492B (en) | 2019-04-11 | 2019-04-11 | Laser amplifier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910290190.8A CN110190492B (en) | 2019-04-11 | 2019-04-11 | Laser amplifier |
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| Publication Number | Publication Date |
|---|---|
| CN110190492A true CN110190492A (en) | 2019-08-30 |
| CN110190492B CN110190492B (en) | 2021-04-13 |
Family
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| CN201910290190.8A Active CN110190492B (en) | 2019-04-11 | 2019-04-11 | Laser amplifier |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112285938A (en) * | 2020-11-10 | 2021-01-29 | 北京工业大学 | Device and method for generating singular hollow beams |
| CN113193469A (en) * | 2021-04-28 | 2021-07-30 | 北京盛镭科技有限公司 | Laser amplifier |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2569375Y (en) * | 2002-08-08 | 2003-08-27 | 上海市激光技术研究所 | New thermal stable chamber |
| US20060146906A1 (en) * | 2004-02-18 | 2006-07-06 | Cymer, Inc. | LLP EUV drive laser |
| CN2901639Y (en) * | 2006-03-23 | 2007-05-16 | 北京工业大学 | Laser pulse four-way amplifier |
| CN102621704A (en) * | 2012-03-22 | 2012-08-01 | 北京国科世纪激光技术有限公司 | Four-pass laser amplifying device |
| CN105140773A (en) * | 2014-05-30 | 2015-12-09 | 李激光公司 | External diffusion amplifier |
| CN106898941A (en) * | 2017-03-14 | 2017-06-27 | 中国科学院上海光学精密机械研究所 | Polarised light multi-pass amplifier based on splicing crystal |
-
2019
- 2019-04-11 CN CN201910290190.8A patent/CN110190492B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2569375Y (en) * | 2002-08-08 | 2003-08-27 | 上海市激光技术研究所 | New thermal stable chamber |
| US20060146906A1 (en) * | 2004-02-18 | 2006-07-06 | Cymer, Inc. | LLP EUV drive laser |
| CN2901639Y (en) * | 2006-03-23 | 2007-05-16 | 北京工业大学 | Laser pulse four-way amplifier |
| CN102621704A (en) * | 2012-03-22 | 2012-08-01 | 北京国科世纪激光技术有限公司 | Four-pass laser amplifying device |
| CN105140773A (en) * | 2014-05-30 | 2015-12-09 | 李激光公司 | External diffusion amplifier |
| CN106898941A (en) * | 2017-03-14 | 2017-06-27 | 中国科学院上海光学精密机械研究所 | Polarised light multi-pass amplifier based on splicing crystal |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112285938A (en) * | 2020-11-10 | 2021-01-29 | 北京工业大学 | Device and method for generating singular hollow beams |
| CN112285938B (en) * | 2020-11-10 | 2023-01-31 | 北京工业大学 | Device and method for generating singular hollow beams |
| CN113193469A (en) * | 2021-04-28 | 2021-07-30 | 北京盛镭科技有限公司 | Laser amplifier |
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| CN110190492B (en) | 2021-04-13 |
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