CN106125448A - A kind of method and apparatus of high efficiency ultrashort light pulse broadening - Google Patents
A kind of method and apparatus of high efficiency ultrashort light pulse broadening Download PDFInfo
- Publication number
- CN106125448A CN106125448A CN201610748504.0A CN201610748504A CN106125448A CN 106125448 A CN106125448 A CN 106125448A CN 201610748504 A CN201610748504 A CN 201610748504A CN 106125448 A CN106125448 A CN 106125448A
- Authority
- CN
- China
- Prior art keywords
- pulse
- broadening
- light
- linear
- optical signals
- Prior art date
- 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.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 20
- 230000003287 optical effect Effects 0.000 claims abstract description 28
- 239000006185 dispersion Substances 0.000 claims abstract description 20
- 230000003321 amplification Effects 0.000 claims abstract description 14
- 238000003199 nucleic acid amplification method Methods 0.000 claims abstract description 14
- 230000009022 nonlinear effect Effects 0.000 claims abstract description 9
- 239000013307 optical fiber Substances 0.000 claims description 21
- 238000012545 processing Methods 0.000 claims description 3
- 238000005516 engineering process Methods 0.000 abstract description 5
- 239000000835 fiber Substances 0.000 description 9
- 230000003595 spectral effect Effects 0.000 description 9
- 230000006835 compression Effects 0.000 description 7
- 238000007906 compression Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 5
- 238000013461 design Methods 0.000 description 3
- 238000001228 spectrum Methods 0.000 description 3
- 238000013459 approach Methods 0.000 description 2
- 210000001367 artery Anatomy 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 210000003462 vein Anatomy 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000010287 polarization Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
Classifications
-
- 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
-
- 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
Abstract
The present invention relates to laser technology field, particularly to the method and apparatus of a kind of high efficiency ultrashort light pulse broadening.Light-pulse generator that this device includes being sequentially connected with, amplifying device, non-linear broadening device；Light-pulse generator, for providing the output of pulsed optical signals；Amplifying device, for being amplified the pulsed optical signals of light-pulse generator output, amplification is adjustable；Non-linear broadening device, it is provided that dispersion and nonlinear effect, for the pulsed optical signals of amplifying device output is carried out non-linear broadening, and carries out compressible nanosecond pulse output to the pulsed optical signals after broadening.The method and apparatus of the high efficiency ultrashort light pulse broadening that the present invention provides, by improving the power of pulsed light, utilize dispersion and nonlinear effect, add the broadening speed of pulse, it is capable of the femtosecond pulse stretching to nanosecond several nanoseconds even tens, it is possible to the large-scale output improving CPA system.
Description
Technical field
The present invention relates to laser technology field, particularly to the method and apparatus of a kind of high efficiency ultrashort light pulse broadening.
Background technology
How to improve energy and the power of laser, since laser is invented, be just constantly subjected to the extensive concern of people.By
Mean power in the output of femtosecond pulse agitator is generally a few milliwatt to hundreds of milliwatt, and single pulse energy is about tens skins
Joule is to several joules of receiving, it is therefore desirable to the energy amplifying femtosecond pulse meets the requirement of reality.Femtosecond pulse is not
Being same as even picosecond pulse laser of general nanosecond, its pulse width is the shortest, if directly amplified, peak power can be the highest,
Reach to a certain degree will cause series of problems: produce various nonlinear effect, make the beam quality of laser pulse decline；Cross
High laser pulse peaks power can destroy the optical component in amplifier, gain media；Produce gain saturaition, reduce
Laser pulse obtains the efficiency of energy from gain media.The appearance of chirped pulse amplification (being called for short CPA) changes this
Present situation, the amplification for femtosecond laser power is laid a good foundation.
In laser chip pulse amplification system, first pass around one from the femtosecond pulse of agitator output and be provided that bigger
The pulse stretcher of dispersion, by femtosecond pulse broadening 103-105Times, reach psec even nanosecond order, formed with strongly warbling
Long pulse.At this moment, the peak power of laser pulse is substantially reduced, is then introduced into laser amplifier, from laser amplifier
After the energy that medium extraction is enough, then the pulse shortener being provided that dispersion measure contrary with pulse stretcher through, will put
The pulse width magnitude that stretched pulse compression and back after great is original.Therefore chirp pulse amplification system is typically by vibrating
Device, stretcher, amplifier, compressor four part forms.
Stretcher is one of device the most key in CPA system, diffraction grating to, chirped fiber grating, body grating all
It it is common stretcher.Grating is to being a kind of element that can produce big chromatic dispersion quantity, and it is placed by two pieces of parallel gratings and forms
's.Along with the size increasing grating pair and the distance of broadening amount are also increasing, and large-area diffraction grating is either from making
Technique or mounting process all suffer from huge challenge, and loss is big.The feature of chirped fiber grating is that volume is little, it is low to be lost,
Nonlinear effect is little and to technical advantages such as polarization insensitives, but chirped fiber grating or a kind of band filter, it is difficult to
The pulse stretching in broadband is provided；And the dispersion measure that it is provided is at most by pulse stretching to 1ns.Body grating and chirped fiber grating
Similar, restricted in bandwidth, the dispersion measure that it is provided is at most by pulse stretching to about 500ps.
Along with a new generation's femtosecond laser develops towards the direction of super high power so that in tradition CPA system, broadening technology faces
Stern challenge.
Summary of the invention
(1) to solve the technical problem that
The method and apparatus that it is an object of the invention to provide a kind of high efficiency ultrashort light pulse broadening, to overcome existing skill
In art there is certain limitation in the broadening to light pulse, it is impossible to meets the defect that femtosecond laser develops towards super high power.
(2) technical scheme
In order to solve the problems referred to above, one aspect of the present invention provides the device of a kind of high efficiency ultrashort light pulse broadening, its bag
Include: the light-pulse generator that is sequentially connected with, amplifying device, non-linear broadening device；
Described light-pulse generator, for providing the output of pulsed optical signals；
Described amplifying device, for being amplified the pulsed optical signals of light-pulse generator output, described amplification is adjustable；
Described non-linear broadening device, it is provided that dispersion and nonlinear effect, for the pulse exporting described amplifying device
Optical signal carries out non-linear broadening, and the light pulse after broadening carries out compressible nanosecond pulse output.
Preferably, the pulsewidth of the pulsed optical signals that described light-pulse generator provides is femtosecond or picosecond magnitude.
Preferably, described non-linear broadening device uses optical fiber.
Preferably, GVD (Group Velocity Dispersion, GVD) the parameter β of described optical fiber2> 0, long
Degree L >=LD, L >=LNL, wherein LDFor dispersion length, LNLFor non-linear length.
On the other hand, the present invention provides a kind of method of high efficiency ultrashort light pulse broadening, including:
Step 1, provide a pulsed optical signals；
Step 2, pulsed optical signals is amplified process, described amplification is adjustable；
Step 3, by non-linear broadening device, the pulsed optical signals after processing and amplifying being carried out non-linear broadening, output can
The nanosecond light pulse of compression.
Preferably, the pulsewidth of described pulsed optical signals is femtosecond or picosecond magnitude.
Preferably, described non-linear broadening device uses optical fiber.
Preferably, the GVD parameter β of described optical fiber2> 0, length L >=LD, L >=LNL, wherein LDFor dispersion length, LNLFor non-
Lineal measure.
(3) beneficial effect
The present invention provides the method and apparatus of a kind of high efficiency ultrashort light pulse broadening, by improving the power of pulsed light,
Utilize dispersion and nonlinear effect, add the broadening speed of pulse, it is possible to realize femtosecond to nanosecond several nanoseconds even tens
Pulse stretching, the pulse after broadening can be compressed to the theoretical limit width of farthest time to approach bandwidth product, it is possible to big
The output of the raising CPA system of scale.
Accompanying drawing explanation
Fig. 1 is that pulse of the present invention and spectrum are with non-linear broadening fiber lengths changing trend diagram；
Fig. 2 is the structural representation of high efficiency ultrashort light pulse broadening device of the present invention；
Fig. 3 is the broadband light spectrogram that the embodiment of the present invention 1 produces；
Fig. 4 is the nanosecond pulse figure that the embodiment of the present invention 1 produces；
Fig. 5 is that the nanosecond pulse that produces of the embodiment of the present invention 1 is by the femtosecond pulse figure after compressing；
Fig. 6 is the pulse width after the non-linear broadening of the embodiment of the present invention 1 and spectral width and amplifying device output
Graph of a relation；
Fig. 7 is the embodiment of the present invention 1 through the pulse of non-linear broadening by the pulsewidth after compressing and amplifying device output work
Rate graph of a relation；
Fig. 8 is the pulse width after the non-linear broadening of the embodiment of the present invention 2 and spectral width and amplifying device output
Graph of a relation；
Fig. 9 is pulse width produced by three embodiments and amplifying device output relation comparison diagram；
Figure 10 is spectral width produced by three embodiments and amplifying device output relation comparison diagram；
Figure 11 is the method flow diagram of embodiment of the present invention high efficiency ultrashort light pulse broadening.
Detailed description of the invention
Below in conjunction with the accompanying drawings and embodiment, the detailed description of the invention of the present invention is described in further detail.Hereinafter implement
Example is used for illustrating the present invention, but is not limited to the scope of the present invention.
As in figure 2 it is shown, the present invention provides a kind of high efficiency ultrashort light pulse broadening apparatus structure schematic diagram.
Light-pulse generator 1 that this device includes being sequentially connected with, amplifying device 2, non-linear broadening device 3.Wherein, light-pulse generator
1, for providing the output of pulsed optical signals；Amplifying device 2, for the pulsed optical signals of light-pulse generator output is amplified,
Amplification is adjustable；Non-linear broadening device 3, it is provided that dispersion and nonlinear effect, for the arteries and veins exporting described amplifying device
Pulsed light signal carries out non-linear broadening, and the pulsed optical signals after broadening carries out compressible nanosecond pulse output.
Wherein, the pulsewidth of the pulsed optical signals that the light-pulse generator in the present embodiment provides is femtosecond or picosecond magnitude.
Non-linear broadening device 3 in the present embodiment uses optical fiber, arranges the GVD parameter β of described optical fiber2> 0, length L >=
LD, L >=LNL, wherein LDFor dispersion length, LNLFor non-linear length.Wherein:
In formula, β2: optical fiber GVD；T0: pulse width；γ: nonlinear fiber coefficient；P0: peak value of pulse merit
Rate.
In the present embodiment, the light pulse after amplification enters non-linear broadening device 3, non-linear broadening fiber lengths L >=LD,
L≥LNL, SPM (Self-phase Modulation, Self-phase modulation) and GVD is jointly to transmission in non-linear broadening optical fiber
Pulse is worked, and pulse power is the biggest, and SPM effect is the strongest.
It will be seen from figure 1 that pulse width prolongs fiber lengths Linear expansion, and spectrum is after entering non-linear broadening optical fiber
Just rapid broadening, then keeps width to be basically unchanged.
SPM causes video stretching, GVD make pulse stretching and make it almost become square wave by shaping, and pulse is at it simultaneously
Warbling of approximately linear is produced on whole width.SPM Main Function is the speed changing the pulse stretching only sensed by GVD,
Accelerate the broadening of pulse.It addition, the pulse chirp linearity after broadening is up to more than 95%, therefore the pulse after broadening can quilt
Compression, and the theoretical limit width of at utmost time to approach bandwidth product.
As shown in figure 11, the present invention also provides for a kind of method of high efficiency ultrashort light pulse broadening, including:
Step 1, provide a pulsed optical signals；
Step 2, pulsed optical signals is amplified process, described amplification is adjustable；
Step 3, by non-linear broadening device, the pulsed optical signals after processing and amplifying being carried out non-linear broadening, output can
The nanosecond light pulse of compression.
Wherein, the pulsewidth of pulsed optical signals is femtosecond or picosecond magnitude.The most non-linear broadening device is optical fiber.Institute is set
State the GVD parameter β of optical fiber2> 0, length L >=LD, L >=LNL, wherein LDFor dispersion length, LNLFor non-linear length.Wherein:
In formula, β2:: optical fiber GVD；T0: pulse width；γ: nonlinear fiber coefficient；P0: peak value of pulse merit
Rate.
The invention has the beneficial effects as follows: by improving the power of pulsed light, utilize nonlinear effect, add the exhibition of pulse
Wide speed, it is possible to realizing the femtosecond pulse stretching to nanosecond several nanoseconds even tens, the pulse after broadening can be compressed to close
The theoretical limit width of time-bandwidth product.Ultra-short pulse-width expansion technical costs provided by the present invention is low, and volume is little, than traditional exhibition
The broadening amount of wide method has the improvement of the order of magnitude, therefore, it is possible to improve the output of CPA system on a large scale.
Embodiment 1
The light-pulse generator that light-pulse generator 1 in the present embodiment uses pulsewidth to be 300fs, amplifies through amplifying device 2, non-thread
Property broadening device 3 uses optical fiber, and its design parameter is: length L=2km, dispersion β2=191ps2/km, nonlinear coefficient γ=
6.63(1/kw*m).After non-linear broadening optical fiber, the spectral shape of output such as Fig. 3, halfwidth is 33nm；Pulse shape such as figure
Shown in 4, halfwidth 10ns, the linearity of warbling is up to 99%；Femtosecond pulse halfwidth 58fs (such as Fig. 5) after compression.
It addition, learn according to experiment, the amplification of amplifying device 2 is different, the pulse width of non-linear broadening device 3 output
Degree and spectral width are the most different, power relation such as Fig. 6 institute of pulse width after broadening and spectral width and amplifying device 2 output
Showing, as seen from the figure, the power of amplifying device 2 output is the biggest, and pulse and the spectrum of the output of non-linear broadening device are the widest.Figure
7 are amplified to the pulse of different capacity for amplifying device 2, are shaped again the pulse halfwidth after compression after non-linear broadening device
Distribution；As seen from the figure, pulse is all compressible to femtosecond, and along with the increase of amplifying device 2 output, the arteries and veins after compression
Rush more and more narrow.
Embodiment 2
The light-pulse generator that light-pulse generator 1 in the present embodiment uses pulsewidth to be 300fs, defeated after amplifying device 2 amplifies
Going out different capacity, the design parameter of non-linear broadening optical fiber is: length L=2km, GVD β2=28ps2/km, non-thread
Property coefficient γ=4.81 (1/kw*m).Pulse width after non-linear broadening device 3 broadening and spectral width and amplifying device 2
As shown in Figure 8, as seen from the figure, amplifying device output is the biggest, and pulse and spectral width are the widest for the power relation of output.
Embodiment 3
Light-pulse generator 1 pulsewidth in the present embodiment is the light-pulse generator of 300fs, exports not after amplifying device 2 amplifies
Same power, the design parameter of non-linear broadening device use optical fiber is: length L=2km, GVD β2=56ps2/km,
Nonlinear coefficient γ=4.81 (1/kw*m).
The light pulse in three embodiments pulse width after non-linear broadening device broadening and amplifying device 2 output
Power relation contrasts as shown in Figure 9；Spectral width contrasts as shown in Figure 10 with the power relation of amplifying device 2 output.By control
Make the pulse power after amplifying and select dispersion and the nonlinear factor of optical fiber in non-linear broadening device, difference can be obtained
The pulse of width；Pulse after broadening is all compressible to femtosecond magnitude.
The above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For Yuan, on the premise of without departing from the technology of the present invention principle, it is also possible to make some improvement and replacement, these improve and replace
Also should be regarded as protection scope of the present invention.
Claims (8)
1. the device of a high efficiency ultrashort light pulse broadening, it is characterised in that including: the light-pulse generator that is sequentially connected with, amplification
Device, non-linear broadening device；
Described light-pulse generator, for providing the output of pulsed optical signals；
Described amplifying device, for being amplified the pulsed optical signals of light-pulse generator output, described amplification is adjustable；
Described non-linear broadening device, it is provided that dispersion and nonlinear effect, for the pulsed light letter exporting described amplifying device
Number carry out non-linear broadening, and the light pulse after broadening is carried out compressible nanosecond pulse output.
2. device as claimed in claim 1, it is characterised in that the pulsewidth of the pulsed optical signals that described light-pulse generator provides is for flying
Second or picosecond magnitude.
3. device as claimed in claim 1, it is characterised in that described non-linear broadening device uses optical fiber.
4. device as claimed in claim 3, it is characterised in that the GVD parameter β of described optical fiber2> 0, length L >=LD,
L≥LNL, wherein LDFor dispersion length, LNLFor non-linear length.
5. the method for a high efficiency ultrashort light pulse broadening, it is characterised in that including:
Step 1, provide a pulsed optical signals；
Step 2, pulsed optical signals is amplified process, described amplification is adjustable；
Step 3, by non-linear broadening device, the pulsed optical signals after processing and amplifying is carried out non-linear broadening, export compressible
Nanosecond light pulse.
6. method as claimed in claim 5, it is characterised in that the pulsewidth of described pulsed optical signals is femtosecond or picosecond magnitude.
7. method as claimed in claim 5, it is characterised in that described non-linear broadening device uses optical fiber.
8. method as claimed in claim 7, it is characterised in that the GVD parameter β of described optical fiber2> 0, length L >=LD,
L≥LNL, wherein LDFor dispersion length, LNLFor non-linear length.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610748504.0A CN106125448A (en) | 2016-08-29 | 2016-08-29 | A kind of method and apparatus of high efficiency ultrashort light pulse broadening |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610748504.0A CN106125448A (en) | 2016-08-29 | 2016-08-29 | A kind of method and apparatus of high efficiency ultrashort light pulse broadening |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106125448A true CN106125448A (en) | 2016-11-16 |
Family
ID=57272835
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610748504.0A Pending CN106125448A (en) | 2016-08-29 | 2016-08-29 | A kind of method and apparatus of high efficiency ultrashort light pulse broadening |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106125448A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110544868A (en) * | 2019-08-29 | 2019-12-06 | 武汉虹拓新技术有限责任公司 | chirped square wave pulse amplification laser system |
| CN110783807A (en) * | 2019-09-27 | 2020-02-11 | 北京大学 | Repetition frequency chirped pulse amplification laser time domain light splitting system and light splitting method thereof |
| CN112152066A (en) * | 2020-09-16 | 2020-12-29 | 飞秒激光研究中心（广州）有限公司 | Laser pulse energy amplification device and method and femtosecond laser |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1266298A (en) * | 2000-03-30 | 2000-09-13 | 中国科学院上海光学精密机械研究所 | Multiple optical pulse generator for femtosecond terawatt-level laser device |
| US20020024986A1 (en) * | 2000-07-14 | 2002-02-28 | Takashi Arisawa | Systems for generating short-pulse laser light |
| JP2005148512A (en) * | 2003-11-18 | 2005-06-09 | Japan Science & Technology Agency | Method for generating optical pulse and method for compressing optical pulse, optical pulse generator and optical pulse compressor |
| CN103022877A (en) * | 2012-11-28 | 2013-04-03 | 广东汉唐量子光电科技有限公司 | Novel method for realizing spectral combination amplification based on frequency division multiplexing technology |
| US20150131143A1 (en) * | 2013-11-14 | 2015-05-14 | Coherent, Inc. | Tunable femtosecond laser-pulse source including a super-continuum generator |
-
2016
- 2016-08-29 CN CN201610748504.0A patent/CN106125448A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1266298A (en) * | 2000-03-30 | 2000-09-13 | 中国科学院上海光学精密机械研究所 | Multiple optical pulse generator for femtosecond terawatt-level laser device |
| US20020024986A1 (en) * | 2000-07-14 | 2002-02-28 | Takashi Arisawa | Systems for generating short-pulse laser light |
| JP2005148512A (en) * | 2003-11-18 | 2005-06-09 | Japan Science & Technology Agency | Method for generating optical pulse and method for compressing optical pulse, optical pulse generator and optical pulse compressor |
| CN103022877A (en) * | 2012-11-28 | 2013-04-03 | 广东汉唐量子光电科技有限公司 | Novel method for realizing spectral combination amplification based on frequency division multiplexing technology |
| US20150131143A1 (en) * | 2013-11-14 | 2015-05-14 | Coherent, Inc. | Tunable femtosecond laser-pulse source including a super-continuum generator |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110544868A (en) * | 2019-08-29 | 2019-12-06 | 武汉虹拓新技术有限责任公司 | chirped square wave pulse amplification laser system |
| CN110544868B (en) * | 2019-08-29 | 2021-03-23 | 武汉虹拓新技术有限责任公司 | Chirped square wave pulse amplification laser system |
| CN110783807A (en) * | 2019-09-27 | 2020-02-11 | 北京大学 | Repetition frequency chirped pulse amplification laser time domain light splitting system and light splitting method thereof |
| CN110783807B (en) * | 2019-09-27 | 2020-09-08 | 北京大学 | Repetition frequency chirped pulse amplification laser time domain light splitting system and light splitting method thereof |
| CN112152066A (en) * | 2020-09-16 | 2020-12-29 | 飞秒激光研究中心（广州）有限公司 | Laser pulse energy amplification device and method and femtosecond laser |
| WO2022057709A1 (en) * | 2020-09-16 | 2022-03-24 | 飞秒激光研究中心（广州）有限公司 | Laser pulse energy amplification apparatus and method, and femtosecond laser |
| US11955762B2 (en) | 2020-09-16 | 2024-04-09 | Femtosecond Research Center Co., Ltd. | Laser pulse energy amplification device and method, and femtosecond laser |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Halbout et al. | 12‐fs ultrashort optical pulse compression at a high repetition rate | |
| CN104391416B (en) | Mid-infrared chirped pulse amplifying device | |
| CN103560391B (en) | The high magnification separation pulse strenching method of multi-stage cascade polarization beam splitting | |
| CN103872568B (en) | Eliminate the chirped pulse chirped amplification system of high-order dispersion | |
| CN100392925C (en) | Multi-pulse superimposing amplifier and femtosecond laser parameter chirped-pulse amplification laser | |
| CN202487963U (en) | Super-continuum optical fiber laser | |
| CN106125448A (en) | A kind of method and apparatus of high efficiency ultrashort light pulse broadening | |
| CN103296569A (en) | Super-continuum spectrum light source based on dual-band seed source Er-Yb co-doped optical fiber amplifier | |
| CN110137786A (en) | A kind of full optical fiber laser system and method generating orphan's burst mode | |
| CN101652710B (en) | Optical pulse shaper, optical pulse light source, super continuum light generator and super continuum light generating method | |
| CN102244355A (en) | Pulse-width-tunable gain-switch type picosecond pulse seed source | |
| KR20150136487A (en) | Apparatus and method for generating ultrashort laser pulses | |
| CN102005689A (en) | All-fiber structural laser system capable of generating high-energy wave-free split rectangular pulse | |
| US20190115711A1 (en) | Pulse compression in chirped pulse laser systems | |
| CN106207737A (en) | A kind of laser shaping pulse acquisition device and acquisition methods | |
| CN100431228C (en) | A high rate multi-stage pulse compression method based on nonlinear cascade process | |
| CN102244352B (en) | Method for amplifying short pulse laser | |
| JP7450298B2 (en) | Laser pulse energy amplification device, method and femtosecond laser equipment | |
| CN104011589A (en) | Method and device for optical parametric amplification of pulses with frequency drift | |
| CN106159644A (en) | A kind of method and apparatus producing high energy pulse bag | |
| CN102013627B (en) | Linearly polarized chirped ultrashort laser pulse production technique and compensation technique | |
| Guo et al. | Chirped pulse Raman amplification in Ba (NO3) 2 crystals | |
| CN102891425B (en) | Ultrahigh peak power fiber amplification system for wide spectrum nanosecond pulsed light | |
| CN103928837B (en) | Multi-pass amplifying system for high-power laser separation chirp pulses | |
| CN206115113U (en) | Laser pulse repetition rate expander with filter effect |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20180601 Address after: 266000 Tokyo Road, bonded port area, Qingdao, Shandong Province, No. 52 Applicant after: Qingdao self trade Laser Technology Co., Ltd. Address before: 433074 999 new high road, East Lake Development Zone, Wuhan, Hubei Applicant before: Wuhan Rulight New Technology Co., Ltd. |
|
| TA01 | Transfer of patent application right | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20161116 |
|
| RJ01 | Rejection of invention patent application after publication |