CN106898941A - Polarised light multi-pass amplifier based on splicing crystal - Google Patents
Polarised light multi-pass amplifier based on splicing crystal Download PDFInfo
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- CN106898941A CN106898941A CN201710151448.7A CN201710151448A CN106898941A CN 106898941 A CN106898941 A CN 106898941A CN 201710151448 A CN201710151448 A CN 201710151448A CN 106898941 A CN106898941 A CN 106898941A
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- splicing
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- 239000013078 crystal Substances 0.000 title claims abstract description 109
- NCGICGYLBXGBGN-UHFFFAOYSA-N 3-morpholin-4-yl-1-oxa-3-azonia-2-azanidacyclopent-3-en-5-imine;hydrochloride Chemical compound Cl.[N-]1OC(=N)C=[N+]1N1CCOCC1 NCGICGYLBXGBGN-UHFFFAOYSA-N 0.000 claims 1
- 238000010304 firing Methods 0.000 claims 1
- 230000010287 polarization Effects 0.000 abstract description 39
- 238000003199 nucleic acid amplification method Methods 0.000 abstract description 16
- 230000003321 amplification Effects 0.000 abstract description 15
- 238000005086 pumping Methods 0.000 abstract description 5
- 238000000034 method Methods 0.000 abstract description 4
- 230000005540 biological transmission Effects 0.000 abstract 1
- 230000011514 reflex Effects 0.000 description 8
- 230000003287 optical effect Effects 0.000 description 7
- 239000000126 substance Substances 0.000 description 4
- 230000010355 oscillation Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 230000003595 spectral effect Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- -1 for example Substances 0.000 description 1
- 230000001965 increasing effect Effects 0.000 description 1
- 230000003071 parasitic effect Effects 0.000 description 1
- 230000001172 regenerating effect Effects 0.000 description 1
- 229910052594 sapphire Inorganic materials 0.000 description 1
- 239000010980 sapphire Substances 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
Classifications
-
- 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
- H01S3/10007—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating in optical amplifiers
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/35—Non-linear optics
- G02F1/39—Non-linear optics for parametric generation or amplification of light, infrared or ultraviolet waves
-
- 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
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Nonlinear Science (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- General Physics & Mathematics (AREA)
Abstract
A kind of polarised light multi-pass amplifier based on splicing crystal, is made up of polarizer, Faraday rotator, the first total reflective mirror, the second total reflective mirror, the 3rd total reflective mirror, the 4th total reflective mirror, splicing crystal, the 5th total reflective mirror, the one 1/2 wave plate, the 2nd 1/2 wave plate.The light beam of multi-pass amplifier of the present invention light beam polarization angle in transmission and amplification process is 45 °, therefore splicing crystal is spliced using the crystal that C axles are 45 °, and using the difference of linearly polarized light polarization state, realize that traditional four-way amplifies using two logical structure for amplifying, reduce incident angle α during seed light beam entrance crystal, area of the final seam for reducing splicing crystal on spot projection face, improves amplification efficiency.Two 1/2 wave plates are all placed in pumping light path, on the state of seed light beam without influence, so that cost-effective, it is ensured that the reliability of amplifier.
Description
Technical field
The present invention relates to laser amplifier, particularly a kind of polarised light multi-pass amplifier based on splicing crystal.
Background technology
Requirement of chirped pulse amplification (Chirped-Pulse-Amplification, the abbreviation CPA) system to energy is more next
It is higher so that crystal (Ti∶Sapphire laser) bore does bigger and bigger, and bigbore crystal growth cycles are long and expensive.Secondly, seed
When pulse is amplified through crystal, produced unwanted oscillation (Parasitic Lasing, abbreviation PL) dramatically disappears in crystal
The energy storage of crystal has been consumed, the optical quality and amplification efficiency for amplifying output pulse has been had a strong impact on, and with crystal bore
Increase, unwanted oscillation is more prone to.Crystal splicing can effectively suppress the generation of unwanted oscillation, while can be formed
The larger crystal of bore, solves the problems of above-mentioned well.
In optical field, multi-pass amplifier refers to that light beam is turned back using total reflective mirror, and the light beam after turning back is not respectively with
With angle is by same gain substance and carries out energy amplification, the number of times typically turned back be less than 10 times.At present, tradition is led to more
Amplifier is all to be built (to can be generally divided into two kinds, one kind is by constantly expansion by gain substance and polylith total reflective mirror
It is another or diminution incident angle realizes multi-pass amplifier, when amplification medium is to light beam polarization state no requirement (NR), it is possible to use rotation
Turning the polarization state of light beam carries out multi-pass amplifier, and light beam is that circular polarization state or part are logical secondary for circular polarization in amplification medium
State), and total reflective mirror number required for the process is more, the same side be used between two total reflective mirrors (center) turned back away from
From bigger, the angle [alpha] of incident gain substance is bigger.Assuming that the distance between two total reflective mirrors (center) are h, total reflective mirror to crystal
Distance be l, then have following relational expression,
When gain substance is for splicing crystal, light beam is reflexed into splicing crystal with incidence angles degree using total reflective mirror,
Due to splicing the presence of crystal seam, area of the seam on emergent light spot perspective plane is caused to increase with the increase of incident angle
Greatly, as Figure 1-1, it is traditional four-way amplifier structure in Fig. 1-1, in figure：1 is a logical amplification, and 2 is that two-way is amplified, and 3 are
Three-pass amplifier, 4 amplify for four-way.It is 8mm to splice crystal thickness in the multi-pass amplifier, and gaping of joints is 3.5mm, by can in figure
To see that a logical light beam entrance crystal angle [alpha] of amplifying is 5.46 °, after amplifying through two-way, through three-pass amplifier light beam entrance crystal angle
Degree α is 9.05 °, is amplified by four-way；It can be seen that the distance between two total reflective mirrors (center) of homonymy are bigger, light beam is incident brilliant
Body angle [alpha] is bigger.As shown in Figure 1-2, figure (a) is emergent light spot projection after crystal is spliced in beam orthogonal incidence, figure (b) and figure
C () is respectively the logical emergent light spot with after three-pass amplifier of four-way amplifier one shown in Fig. 1-1 and projects.Due to four-way amplifier position
In horizontal optical platform, therefore the interword gap of emergent light spot horizontal direction ten is substantially unchanged, but when light beam is through a logical and threeway
During amplification, (do not examined because the incident splicing crystal of light beam has the angle [alpha] and splicing crystal that can not ignore special construction in itself
Consider other human factors), it will cause a logical interword gap of emergent light spot vertical direction ten with after three-pass amplifier to be changed into respectively
4.87mm and 5.74mm, so big gap can cause the loss of amplified energy, influence subsequent optical path, be not easy to practical application.
Amplifier is generally amplified using s or p polarization states, and optical element is typically also to be designed according to polarization state, so putting
Big device light extraction will return to s or p polarization states, be easy to subsequently use.Seed light beam is by being changed into 45 ° partially after Faraday rotator
Shake the linearly polarized light at angle, therefore when simultaneously seed light beam and pump beam are incident on splicing crystal, it is necessary to ensure that seed light beam
The C axles of polarization state, the polarization state of pump beam and splicing crystal be consistent, i.e. the polarization shape of incident beam polarised light
State will be consistent with crystal C axles, if polarization state and C axles have certain angle, spectral modulation will be produced (to refer to text
[1] Xiaoming Lu etc. are offered, " Birefringent plate design for broadband spectral shaping
in a Ti:sapphire regenerative amplifier”).If crystal C axles are according to general amplifier application method, i.e. s
Or p polarization states are consistent, it is necessary to seed light beam polarization state is adjusted to crystal demand with wave plate, and broadband waveplate is because of bandwidth
Wider, technological requirement is higher, should not obtain the high-quality product of requirement.
The content of the invention
In order to solve above-mentioned problem of the prior art, there is provided a kind of polarised light multi-pass amplifier based on splicing crystal.Should
Amplifier utilizes the polarization state difference of linearly polarized light, and two logical structure for amplifying realize that traditional four-ways amplify, and reduction seed light beam enters
Incident angle α during crystal is penetrated, area of the final seam for reducing splicing crystal on spot projection face improves amplification efficiency.Two
Individual 1/2 wave plate is all placed in pumping light path, on the state of seed light beam without influence, so that cost-effective, it is ensured that amplifier
Reliability.
It is as follows that the present invention solves technical scheme：
1st, a kind of based on the polarised light multi-pass amplifier for splicing crystal, its feature is：By polarizer, Faraday optically-actives
Device, the first total reflective mirror, the second total reflective mirror, the 3rd total reflective mirror, the 4th total reflective mirror, splicing crystal, the 5th total reflective mirror, the one 1/2 ripple
Piece, the 2nd 1/2 wave plate are constituted, and described splicing crystal is spliced using the crystal that C axles are 45 °, and its position relationship is such as
Under：Along seed light beam incident direction be successively described polarizer, Faraday rotator, the first total reflective mirror, the second total reflective mirror,
Splicing crystal, the 4th total reflective mirror, the 3rd total reflective mirror, splicing crystal and the 5th total reflective mirror, described polarizer, the first total reflective mirror with
Beam direction is in 45 °, and the 5th total reflective mirror and beam direction are in 90 °, remaining total reflective mirror and beam direction adjustable angle, along the first pump
Pu light beam incident direction is successively the one 1/2 described wave plate, splicing crystal, is successively institute along the second pump beam incident direction
The 2nd 1/2 wave plate, the splicing crystal stated, the incident angle α of the incident splicing crystal of described seed light beam meet following relational expression：
In formula, D is emergent light spot diameter, and d is the thickness for splicing crystal, and d ' is the joint gap of splicing crystal, and n is splicing
The refractive index of crystal.
The course of work of polarised light multi-pass amplifier of the present invention based on splicing crystal is as follows：
Seed light beam is incident on polarizer, be changed into after polarizer linearly polarized light (herein using p-type polarizer as a example by,
Therefore produce the p polarization states of direction of vibration and incident direction level), Faraday rotator is then incident to, light beam polarization angle turns
Cross 45 °；Light beam reflexes to the second total reflective mirror through the first total reflective mirror, then reflexes to splicing crystal by the second total reflective mirror, logical through first
To the 4th total reflective mirror, light beam reflexes to the 3rd total reflective mirror through the 4th total reflective mirror, is reflexed to by the 3rd total reflective mirror for outgoing after amplification
Splicing crystal, to the 5th total reflective mirror, light beam is incident to splicing crystal through the 5th total reflective mirror, through the 3rd for outgoing after the second logical amplification
It is logical to amplify outgoing to the 3rd total reflective mirror, after reflex to splicing crystal through the 3rd total reflective mirror and the 4th total reflective mirror successively, through four-way
Outgoing reflexes to Faraday rotator, emergent light through the second total reflective mirror and the first total reflective mirror successively to the second total reflective mirror after amplification
The beam angle of polarization turns over 45 ° (therefore light beam polarization angle corotation crosses 90 °, and light beam is changed into s polarization states) in the same direction again, and light beam enters
Polarizer is incident upon, only allows p light to pass through due to polarizer, therefore light beam (s light) reflects light path by polarizer.Wherein two beam pumpings
Light beam (linearly polarized light) respectively becomes the linearly polarized light that the angle of polarization is 45 ° and is incident to spelling through the one 1/2 wave plate and the 2nd 1/2 wave plate
Connect crystal.
Generally it is considered that area S ' and total emergent light spot area S of the seam of splicing crystal on emergent light spot perspective plane
Between when there is following relation, light beam can be continuing with, i.e.,
Assuming that a diameter of D of emergent light spot, emergent light spot cross vertical direction gap is a, and horizontal direction gap is a ', splicing
Crystal thickness is d, and the seam for splicing crystal is d ', and crystal refractive index is n, because emergent light spot cross horizontal direction gap is basic
It is unchanged, so a ' ≈ d ', therefore just like lower aprons relation,
Therefore incident angle α need to meet following relation,
The advantage of solution technology of the present invention is as follows：
1. polarised light multi-pass amplifier of the present invention based on splicing crystal can realize that traditional four-way amplifies, same by reducing
The distance between side total reflective mirror (center) reduces the incident angle α of the incident splicing crystal of light beam, and the final splicing seam that reduces is in hot spot
Area on perspective plane.
2. light beam polarization state is 45 ° of lines of the angle of polarization in polarised light multi-pass amplifier of the present invention based on splicing crystal
Polarised light, it is ensured that the amplification efficiency of system, while because of mismatch of the crystal C axles with seed light polarization spectrum will not be produced to adjust
System.
3. 1/2 wave plate bandwidth in pumping light path is placed in polarised light multi-pass amplifier of the present invention based on splicing crystal
2 magnitudes smaller than seed light beam, it is easy to obtain, reliability is high.Simultaneously because 1/2 wave plate is not in seed light path, seed light beam
Without 1/2 wave plate, on the state of seed light beam without influence, therefore to main optical path without directly affecting, it is ensured that the reliability of amplifier
Property.
Brief description of the drawings
Fig. 1-1 is incident angle disparity map
Fig. 1-2 is spot projection figure
Fig. 2 is polarised light multi-pass amplifier structural representation of the present invention based on splicing crystal
Fig. 3 is present invention splicing crystal (2x2) structural representation
Specific embodiment
Fig. 2 is first referred to, Fig. 2 is polarised light multi-pass amplifier structural representation of the present invention based on splicing crystal, in figure
Pump beam only uses two-way, it is also possible to multichannel, only for reference.As seen from the figure, polarised light of the present invention based on splicing crystal leads to more
Amplifier, is all-trans by polarizer 1, Faraday rotator 2, the first total reflective mirror 3, the second total reflective mirror 4, the 3rd total reflective mirror the 5, the 4th
Mirror 6, splicing crystal 7, the 5th total reflective mirror 8, the one 1/2 wave plate 9, the 2nd 1/2 wave plate 10 are constituted, and described splicing crystal 7 is to make
It is spliced with the crystal that C axles are 45 °, its position relationship is as follows：It is successively described inclined along the incident direction of seed light beam 11
Shake piece 1, Faraday rotator 2, the first total reflective mirror 3, the second total reflective mirror 4, splicing crystal 7, the 4th total reflective mirror 6, the 3rd total reflective mirror
5th, the total reflective mirror 8 of crystal 7 and the 5th is spliced, described polarizer 1, the first total reflective mirror 3 and beam direction are in 45 °, the 5th total reflective mirror 8
It it is in 90 ° with beam direction, remaining total reflective mirror and beam direction adjustable angle are successively institutes along the incident direction of the first pump beam 12
The one 1/2 wave plate 9 stated, splicing crystal 7, along the incident direction of the second pump beam 13 be successively the 2nd 1/2 described wave plate 10,
Splicing crystal 7, the incident angle α of the incident splicing crystal 7 of described seed light beam 11 meets following relational expression：
In formula, D is emergent light spot diameter, and d is the thickness for splicing crystal, and d ' is the joint gap of splicing crystal, and n is splicing
The refractive index of crystal.
The course of work of polarised light multi-pass amplifier of the present invention based on splicing crystal is as follows：
Seed light beam is incident first, and polarizer 1, the center of the total reflective mirror 3 of Faraday rotator 2 and first need to be ensured same
On straight line, be placed on these three element centrals on same straight line by the method collimated using aperture, and enables light beam
Pass through Faraday rotator 2 completely.Seed light beam 11 is incident on polarizer 1, and linearly polarized light is changed into after polarizer 1 (herein
As a example by using p-type polarizer, therefore produce the p polarization states of direction of vibration and incident direction level), then it is incident to Faraday
Polarization apparatus 2, light beam polarization angle turns over 45 °；Light beam reflexes to the second total reflective mirror 4 through the first total reflective mirror 3, then by the second total reflective mirror 4
Splicing crystal 7 is reflexed to, outgoing is to the 4th total reflective mirror 6 after the first logical amplification, and it is complete that light beam reflexes to the 3rd through the 4th total reflective mirror 6
Anti- mirror 5, splicing crystal 7 is reflexed to by the 3rd total reflective mirror 5, through second it is logical amplify after outgoing to the 5th total reflective mirror 8, light beam is through the
Five total reflective mirrors 8 be incident to splicing crystal 7, through three-pass amplifier outgoing to the 3rd total reflective mirror 5, after successively through the He of the 3rd total reflective mirror 5
4th total reflective mirror 6 reflex to splicing crystal 7, through four-way amplify after outgoing to the second total reflective mirror 4, successively through the second total reflective mirror 4
Faraday rotator 2 is reflexed to the first total reflective mirror 3, the outgoing beam angle of polarization turns over 45 ° of (event light beams in the same direction again
Angle of polarization corotation crosses 90 °, and light beam is changed into s polarization states), light beam is incident to polarizer 1, and due to polarizer, 1 allows p light to lead to
Cross, therefore light beam (s light) reflects light path by polarizer 1.Wherein two beam pump beams 12,13 (linearly polarized light) are respectively through the 1st
2 wave plates 9 and the 2nd 1/2 wave plate 10 can become the linearly polarized light that the angle of polarization is 45 ° and be incident to splicing crystal 7.Because the present invention is more
It is that 45 ° of linearly polarized lights of the angle of polarization amplify that the seed light beam polarization state of logical amplifier is used, therefore also to ensure pump beam
Polarization state is that 45 ° of incident increasings of the linearly polarized light of the angle of polarization splice crystal 7；The polarization of pump beam is determined first with analyzer
Angle, and determine the angle theta between pump beam and seed light beam polarization state, then make the optical axis and pump beam of 1/2 wave plate
Linearly polarized light into θ/2 angle, when can so ensure seed light beam and splicing crystal 7 incident by the pump beam of 1/2 wave plate
Polarization state is consistent.
Using splicing crystal 7, each piece of C direction of principal axis of crystal need to be measured, crystal C axles be spliced by 45° angle, according to Fig. 3
Shown structure is placed.Splicing crystal (2x2) structure a, left side is front view, and the right side is left view, and Fig. 3 is 4 pieces of splicing crystal structures
(2x2), will one block of rod-like crystal be divided into four pieces, it is only for reference, also crystal structure can be spliced using more polylith.
Experiment shows, the present invention can realize tradition four-way structure for amplifying, by reducing between homonymy total reflective mirror (center)
Distance reduces incident angle α during seed light beam incidence splicing crystal, for example, crystal thickness is 8mm, crystal splicing seam is
3.5mm, the distance of total reflective mirror to crystal is 1500mm, and the distance between two total reflective mirrors (center) are 200mm, and incident angle α is
3.8 °, α angles needed for meeting experiment finally reduce area of the seam of splicing crystal on spot projection face.Two 1/2 wave plates
It is placed in pumping light path, neither influences seed light beam, and can be cost-effective, it is ensured that the reliability of amplifier.
Claims (1)
1. a kind of based on the polarised light multi-pass amplifier for splicing crystal, it is characterised in that：By polarizer (1), Faraday rotator
(2), the first total reflective mirror (3), the second total reflective mirror (4), the 3rd total reflective mirror (5), the 4th total reflective mirror (6), splicing crystal (7), the 5th
Total reflective mirror (8), the one 1/2 wave plate (9), the 2nd 1/2 wave plate (10) are constituted, and described splicing crystal (7) is to use C axles for 45 °
Crystal be spliced, its position relationship is as follows：Along seed light beam (11) incident direction be successively described polarizer (1),
It is Faraday rotator (2), the first total reflective mirror (3), the second total reflective mirror (4), splicing crystal (7), the 4th total reflective mirror (6), the 3rd complete
Anti- mirror (5), splicing crystal (7) and the 5th total reflective mirror (8), described polarizer (1), the first total reflective mirror (3) are in beam direction
45 °, the 5th total reflective mirror (8) and beam direction are in 90 °, remaining total reflective mirror and beam direction adjustable angle, along the first pump beam
(12) incident direction is successively the one 1/2 described wave plate (9), splicing crystal (7), along the second pump beam (13) incident direction
It is successively the 2nd 1/2 described wave plate (10), splicing crystal (7), described seed light beam (11) is incident to splice entering for crystal (7)
Firing angle α meets following relational expression：
In formula, D is emergent light spot diameter, and d is the thickness for splicing crystal, and d ' is the joint gap of splicing crystal, and n is splicing crystal
Refractive index.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710151448.7A CN106898941B (en) | 2017-03-14 | 2017-03-14 | Polarised light multi-pass amplifier based on splicing crystal |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710151448.7A CN106898941B (en) | 2017-03-14 | 2017-03-14 | Polarised light multi-pass amplifier based on splicing crystal |
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| Publication Number | Publication Date |
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| CN106898941A true CN106898941A (en) | 2017-06-27 |
| CN106898941B CN106898941B (en) | 2019-04-19 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110190492A (en) * | 2019-04-11 | 2019-08-30 | 北京盛镭科技有限公司 | Laser amplifier |
| CN111948871A (en) * | 2020-08-18 | 2020-11-17 | 中国工程物理研究院激光聚变研究中心 | Multi-pass amplification system shared by pump light and signal light |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1834765A (en) * | 2006-03-23 | 2006-09-20 | 北京工业大学 | Super-short laser pulse four-way amplifier |
| CN203150896U (en) * | 2012-12-29 | 2013-08-21 | 深圳大学 | Multi-channel amplification system of ultra-short pulse laser |
| US8995052B1 (en) * | 2013-09-09 | 2015-03-31 | Coherent Kaiserslautern GmbH | Multi-stage MOPA with first-pulse suppression |
| CN105552707A (en) * | 2016-01-29 | 2016-05-04 | 中国科学院上海光学精密机械研究所 | Reflex multi-time amplification device based on spliced laser crystals |
-
2017
- 2017-03-14 CN CN201710151448.7A patent/CN106898941B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1834765A (en) * | 2006-03-23 | 2006-09-20 | 北京工业大学 | Super-short laser pulse four-way amplifier |
| CN203150896U (en) * | 2012-12-29 | 2013-08-21 | 深圳大学 | Multi-channel amplification system of ultra-short pulse laser |
| US8995052B1 (en) * | 2013-09-09 | 2015-03-31 | Coherent Kaiserslautern GmbH | Multi-stage MOPA with first-pulse suppression |
| CN105552707A (en) * | 2016-01-29 | 2016-05-04 | 中国科学院上海光学精密机械研究所 | Reflex multi-time amplification device based on spliced laser crystals |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110190492A (en) * | 2019-04-11 | 2019-08-30 | 北京盛镭科技有限公司 | Laser amplifier |
| CN111948871A (en) * | 2020-08-18 | 2020-11-17 | 中国工程物理研究院激光聚变研究中心 | Multi-pass amplification system shared by pump light and signal light |
| CN111948871B (en) * | 2020-08-18 | 2022-01-28 | 中国工程物理研究院激光聚变研究中心 | Multi-pass amplification system shared by pump light and signal light |
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| Publication number | Publication date |
|---|---|
| CN106898941B (en) | 2019-04-19 |
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