CN109599741A - A kind of high repetition frequency ultrashort pulse string generation device and its control method - Google Patents
A kind of high repetition frequency ultrashort pulse string generation device and its control method Download PDFInfo
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- CN109599741A CN109599741A CN201910083018.5A CN201910083018A CN109599741A CN 109599741 A CN109599741 A CN 109599741A CN 201910083018 A CN201910083018 A CN 201910083018A CN 109599741 A CN109599741 A CN 109599741A
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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
- H01S3/08—Construction or shape of optical resonators or components thereof
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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
- H01S3/08—Construction or shape of optical resonators or components thereof
- H01S3/08059—Constructional details of the reflector, e.g. shape
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- H—ELECTRICITY
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- 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
- H01S3/0816—Configuration of resonator having 4 reflectors, e.g. Z-shaped resonators
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- H—ELECTRICITY
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- 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
- H01S3/083—Ring lasers
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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
- H01S3/08—Construction or shape of optical resonators or components thereof
- H01S3/086—One or more reflectors having variable properties or positions for initial adjustment of the resonator
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- H—ELECTRICITY
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- 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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- 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
- H01S3/106—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating by controlling devices placed within the cavity
- H01S3/107—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating by controlling devices placed within the cavity using electro-optic devices, e.g. exhibiting Pockels or Kerr effect
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Abstract
The invention discloses a kind of high repetition frequency ultrashort pulse string generation device and its control methods.The present invention uses linear resonant cavity or ring resonator, one of reflecting mirror is fractional transmission partially reflecting mirror, as outgoing mirror, an output pulse can be exported whenever pulse laser to outgoing mirror, form output pulse string, by controlling the high pressure duration of Pockers cell, the quantity of the output pulse string met the requirements；Pass through gain of the energy supply device to laser pulse in control resonant cavity, the energy of the output pulse string met the requirements；The output pulse string of high repetition frequency is the double structure train of pulse of the subpulse string in the pulse envelope of low-repetition-frequency comprising high repetition frequency, the repetition rate of pulse envelope is determined that the repetition rate of the subpulse string in each pulse envelope is determined by the length of ring resonator by repetition rate transformation system.
Description
Technical field
The present invention relates to femtosecond laser technologies, and in particular to a kind of high repetition frequency ultrashort pulse string generation device and
Its control method.
Background technique
Laser pulse mean power is the product of single pulse energy and repetition rate.In view of fuel factor, laser pulse is flat
Equal power can not be improved infinitely.When laser exports high energy, repetition rate is necessarily sacrificed, high repetition frequency is obtained and then be difficult
Obtain high-energy.Current laser technology, the exportable tens of MHz magnitude laser of oscillator, but energy is put usually in ten nJ magnitudes
The big available higher-energy of device, but repetition rate up to hundred KHz magnitudes.Due to the bottleneck of fuel factor, it is difficult to obtain simultaneously
MHz repetition, the laser pulse of tens uJ.However in practical applications, it is often necessary to which repetition rate is MHz magnitude, energy tens
The ultrashort laser pulse of uJ is badly in need of developing the such laser pulse of new technology acquisition.
Summary of the invention
For the above problems of the prior art, the invention proposes a kind of high repetition frequency ultrashort pulse strings
Generation device and its control method.
An object of the present invention is to provide a kind of high repetition frequency ultrashort pulse string generation devices.
High repetition frequency ultrashort pulse string generation device is using linear resonant cavity or uses ring resonator.
Using linear resonant cavity, high repetition frequency ultrashort pulse string generation device of the invention includes: millijoule laser
Pulse amplification system, repetition rate transformation system, linear resonant cavity, polarizer, Pockers cell, quarter-wave plate and energy are mended
To device；Wherein, linear resonant cavity is made of end mirror and outgoing mirror, and end mirror is high reflective mirror, and outgoing mirror is that fractional transmission part is anti-
Penetrate mirror；Quarter-wave plate, Pockers cell, polarizer and energy is sequentially placed from end mirror to outgoing mirror in linear resonant cavity to mend
To device；Millijoule laser impulse amplification system output low frequency rate laser pulse, repeated frequency conversion system modulate laser pulse
Repetition rate；First polarised light of repeated frequency conversion system output is reflected into linear resonant cavity by polarizer, this
When, Pockers cell does not apply any voltage, and the state of Pockers cell is full-wave plate, and the first polarised light becomes after quarter-wave plate
For circularly polarized light, laser pulse again passes by quarter-wave plate and Pockers cell after end mirror reflects, and circularly polarized light becomes
The polarization state of two polarised lights, the first polarised light and the second polarised light is linear polarization, and polarization direction is vertical；It is passed through through polarizer
When crossing energy supply device, energy is amplified, then is transferred to outgoing mirror, fraction of laser light pulse is exported by outgoing mirror, this
When for output pulse string first output pulse, fraction of laser light pulse reflects through outgoing mirror, again pass by energy supply device,
Laser pulse is amplified, and includes that outgoing mirror bring is lost in compensation linear resonant cavity；When laser pulse rests on Pockers cell
When between outgoing mirror, applies quarter-wave voltage to Pockers cell, change the state of Pockers cell, at this time Pockers cell shape
State is quarter-wave plate, so that the polarization state of laser pulse be made always second to polarize between Pockers cell and outgoing mirror；Swash
Light pulse is maintained at linear resonant cavity interior resonance during applying quarter-wave voltage to Pockers cell, every saturating by outgoing mirror
An output pulse can be exported by penetrating, and form output pulse string；Laser pulse process is divided between output pulse through outgoing mirror
The time of linear resonant cavity one back and forth, interval time t1=2L1/ c, L1Long for the chamber of linear resonant cavity, c is the light velocity；Work as line
Property resonant cavity in laser pulse also voluntarily decaying does not terminate, and when no longer needing to export pulse, select laser pulse to rest on general
It when between kerr cell and outgoing mirror, decorporates quarter-wave voltage to Pockers cell, the second polarised light passes through Pockers cell twice
Become the first polarised light, laser pulse goes out linear resonant cavity through polarizer back reflection, at this time the output pulse string of high repetition frequency
Terminate；Alternatively, Pockers cell keeps quarter-wave voltage to decorporate at this time general until laser pulse, which is voluntarily decayed, to be terminated
The quarter-wave voltage of kerr cell, outgoing mirror stop the output pulse string of output high repetition frequency, in this case, polarization
Device does not export laser；The output pulse string of high repetition frequency is the son in the pulse envelope of low-repetition-frequency comprising high repetition frequency
The repetition rate of the double structure train of pulse of train of pulse, pulse envelope is determined by repetition rate transformation system, in each pulse envelope
The repetition rate of subpulse string determined by the length of linear resonant cavity.
The end mirror of linear resonant cavity is high reflective mirror, and reflectivity is greater than 99%；Outgoing mirror is fractional transmission partially reflecting mirror, instead
Rate is penetrated less than 98%, is greater than 70%.
Using ring resonator, high repetition frequency ultrashort pulse string generation device of the invention includes: millijoule laser
Pulse amplification system, repetition rate transformation system, ring resonator, input polarization device, output polarizer, Pockers cell, half-wave
Piece and energy supply device；Wherein, ring resonator is made of first to fourth reflecting mirror, wherein first, third and fourth is anti-
Penetrating mirror is hysteroscope using high reflective mirror, and the second reflecting mirror is that outgoing mirror uses fractional transmission partially reflecting mirror；It is intracavitary in annular resonance
It is sequentially placed output polarizer, half-wave plate, Pockers cell and input polarization device from the first reflecting mirror to the second reflecting mirror, in third
Energy supply device is placed between reflecting mirror and the 4th reflecting mirror；Millijoule laser impulse amplification system output low frequency rate laser arteries and veins
Punching, the repetition rate of repeated frequency conversion system modulation laser pulse；First polarization of repeated frequency conversion system output
Light is reflected into ring resonator by input polarization device, at this point, Pockers cell does not apply any voltage, the state of Pockers cell
For full-wave plate, the first polarised light becomes the second polarised light after half-wave plate, and the polarization state of the first polarised light and the second polarised light is equal
For linear polarization, and polarization direction is vertical, and the second polarization laser pulse is after exporting polarizer transmission, through first and the 4th reflecting mirror
When after reflection by energy supply device, energy is amplified, is transmitted to second instead after again passing by the reflection of third reflecting mirror
Mirror output is penetrated, is at this time first output pulse of output pulse string, fraction of laser light pulse is reflected through the second reflecting mirror to be returned；When
Laser pulse is to apply half-wave voltage when resting in Pockers cell to Pockers cell, change the state of Pockers cell, general at this time
Kerr cell state is half-wave plate, to make the polarization state of laser pulse by output polarizer and when input polarization device always the
Two polarizations；Laser pulse is maintained at ring resonator interior resonance during applying half-wave voltage to Pockers cell, every to pass through second
Reflecting mirror transmission can export an output pulse, form output pulse string；It is divided between output pulse through the second reflecting mirror
Laser pulse passes through the time of ring resonator one back and forth, interval time t2=L2/ c, L2Long, the c for the chamber of ring resonator
For the light velocity；When also voluntarily decaying does not terminate the intracavitary laser pulse of annular resonance, and no longer needs to export pulse, laser arteries and veins is selected
Punching is when resting between Pockers cell and the second reflecting mirror, decorporates half-wave voltage to Pockers cell, and the second polarised light passes through general gram
That box and half-wave plate become the first polarised light, and laser pulse goes out ring resonator through exporting polarizer back reflection, high repetition at this time
The output pulse string of frequency terminates；Alternatively, Pockers cell keeps half-wave voltage, until pulse, which voluntarily decays, to be terminated, at this time
It decorporates the half-wave voltage of Pockers cell, the 4th reflecting mirror stops the output pulse string of output high repetition frequency, in this case,
Output polarizer does not export laser；The output pulse string of high repetition frequency is to repeat in the pulse envelope of low-repetition-frequency comprising high
The repetition rate of the double structure train of pulse of the subpulse string of frequency, pulse envelope determines by repetition rate transformation system, each arteries and veins
The repetition rate of the subpulse string rushed in envelope is determined by the length of ring resonator.
First polarised light and the second polarised light are linear polarization, and polarization direction is vertical, i.e. the first polarised light is vertical inclined
Shake light, then the second polarised light is horizontal polarization light；First polarised light is horizontal polarization light, then the second polarised light is vertical polarization
Light.First polarization and the second polarization are the polarization state of linear polarization, and polarization direction is vertical, i.e., the first polarization is vertical polarization,
Then the second polarization is horizontal polarization；First polarization is horizontal polarization, then the second polarization is vertical polarization.
First, third and fourth reflecting mirror of ring resonator is hysteroscope, and using high reflective mirror, reflectivity is greater than 99%；The
Two-mirror is outgoing mirror, and using fractional transmission partially reflecting mirror, reflectivity is greater than 70% less than 98%.
Millijoule laser impulse amplification system is that repetition rate is less than 100Khz, energy < 10mJ laser amplifier system.
Repetition rate transformation system uses Pockers cell, the repetition rate of pulse envelope is modulated, to make pulse envelope
Repetition rate is adjustable in 100KHz~1Hz.
Polarizer is to reflect the first polarization laser, is transmitted to the second polarization laser；Using vertical based on birefringence
Body formula polarizer, or the sheet-like polarizing plate based on polarization plated film.
Pockers cell is full-wave plate state when decorporating voltage, and Pockers cell is used in half-wave plate state after applying half-wave voltage
In ring resonator, Pockers cell is in that quarter-wave plate state is used for linear resonant cavity after applying quarter-wave voltage, from
And change the polarization of incident laser pulse, laser pulse is stayed in resonant cavity in conjunction with polarizer.By controlling Pockers cell
The high pressure duration, the quantity of the output pulse string met the requirements.
Energy supply device includes gain crystal and pumping source, and pumping source pumps gain crystal, and gain crystal is located at resonance
In chamber, the laser pulse to recycle in resonant cavity provides gain amplification；Pass through control linear resonant cavity or ring resonator
Gain, the energy of the output pulse string met the requirements.
It is another object of the present invention to provide a kind of controls of high repetition frequency ultrashort pulse string generation device
Method.
The control method of high repetition frequency ultrashort pulse string generation device of the invention, using linear resonant cavity, packet
Include following steps:
1) millijoule laser impulse amplification system output low frequency rate laser pulse, repeated frequency conversion system modulate laser arteries and veins
The repetition rate of punching；
2) the first polarised light of repeated frequency conversion system output is reflected into linear resonant cavity by polarizer, this
When, Pockers cell does not apply any voltage, and the state of Pockers cell is full-wave plate, and the first polarised light becomes after quarter-wave plate
For circularly polarized light, laser pulse again passes by quarter-wave plate and Pockers cell after end mirror reflects, and circularly polarized light becomes
The polarization state of two polarised lights, the first polarised light and the second polarised light is linear polarization, and polarization direction is vertical；It is passed through through polarizer
When crossing energy supply device, energy is amplified, then is transferred to outgoing mirror, fraction of laser light pulse is exported by outgoing mirror, this
When for output pulse string first output pulse, fraction of laser light pulse reflects through outgoing mirror, again pass by energy supply device,
Laser pulse is amplified, and includes that outgoing mirror bring is lost in compensation linear resonant cavity；
3) when laser pulse rests between Pockers cell and outgoing mirror, apply quarter-wave electricity to Pockers cell
Pressure, changes the state of Pockers cell, and Pockers cell state is quarter-wave plate at this time, so that the polarization state of laser pulse be made to exist
It always second is polarized between Pockers cell and outgoing mirror；
4) laser pulse is maintained at linear resonant cavity interior resonance during applying quarter-wave voltage to Pockers cell, often
An output pulse can be exported by output mirror transmission, form output pulse string；It is divided between output pulse through outgoing mirror
Laser pulse passes through the time of linear resonant cavity one back and forth, interval time t1=2L1/ c, L1It is long for the chamber of linear resonant cavity,
C is the light velocity；
5) when also voluntarily decaying does not terminate the intracavitary laser pulse of linear resonance, and no longer needs to export pulse, selection swashs
When light pulse is rested between Pockers cell and outgoing mirror, decorporate quarter-wave voltage to Pockers cell, the second polarised light two
Secondary to become the first polarised light by Pockers cell, laser pulse goes out linear resonant cavity through polarizer back reflection, high at this time to repeat frequency
The output pulse string of rate terminates；Alternatively, Pockers cell keep quarter-wave voltage, until laser pulse voluntarily decay terminate be
Only, it decorporates at this time the quarter-wave voltage of Pockers cell, outgoing mirror stops the output pulse string of output high repetition frequency, at this
In the case of kind, polarizer does not export laser；The output pulse string of high repetition frequency be low-repetition-frequency pulse envelope in include
The repetition rate of the double structure train of pulse of the subpulse string of high repetition frequency, pulse envelope determines by repetition rate transformation system,
The repetition rate of subpulse string in each pulse envelope is determined by the length of linear resonant cavity.
The control method of high repetition frequency ultrashort pulse string generation device of the invention, using ring resonator, packet
Include following steps:
1) millijoule laser impulse amplification system output low frequency rate laser pulse, repeated frequency conversion system modulate laser arteries and veins
The repetition rate of punching；
2) the first polarised light of repeated frequency conversion system output is reflected into ring resonator by input polarization device,
At this point, Pockers cell does not apply any voltage, the state of Pockers cell is full-wave plate, and the first polarised light becomes the after half-wave plate
The polarization state of two polarised lights, the first polarised light and the second polarised light is linear polarization, and polarization direction is vertical, the second polarization laser
Pulse after exporting polarizer transmission, through first and the 4th reflecting mirror reflection after by energy supply device when, to energy carry out
Amplification is transmitted to the output of the second reflecting mirror after again passing by the reflection of third reflecting mirror, and first for output pulse string is defeated at this time
Pulse out, fraction of laser light pulse is reflected through the second reflecting mirror to be returned；
3) when laser pulse is to rest in Pockers cell, apply half-wave voltage to Pockers cell, change Pockers cell
State, Pockers cell state is half-wave plate at this time, to make the polarization state of laser pulse by output polarizer and input
It always second is polarized when polarizer；
4) laser pulse is maintained at ring resonator interior resonance during applying half-wave voltage to Pockers cell, every to pass through the
Two-mirror transmission can export an output pulse, form output pulse string；The interval of output pulse through the second reflecting mirror
Pass through the time of ring resonator one back and forth, interval time t for laser pulse2=L2/ c, L2For the chamber of ring resonator
Long, c is the light velocity；
5) when also voluntarily decaying does not terminate the intracavitary laser pulse of annular resonance, and no longer needs to export pulse, selection swashs
It when light pulse is rested between Pockers cell and the second reflecting mirror, decorporates half-wave voltage to Pockers cell, the second polarised light passes through
Pockers cell and half-wave plate become the first polarised light, and laser pulse goes out ring resonator through exporting polarizer back reflection, high at this time
The output pulse string of repetition rate terminates；Alternatively, Pockers cell keeps half-wave voltage, until pulse, which voluntarily decays, to be terminated,
It decorporates the half-wave voltage of Pockers cell, the 4th reflecting mirror stops the output pulse string of output high repetition frequency, in this case,
Output polarizer does not export laser；The output pulse string of high repetition frequency is to repeat in the pulse envelope of low-repetition-frequency comprising high
The repetition rate of the double structure train of pulse of the subpulse string of frequency, pulse envelope determines by repetition rate transformation system, each arteries and veins
The repetition rate of the subpulse string rushed in envelope is determined by the length of ring resonator.
Wherein, by controlling the high pressure duration of Pockers cell, the quantity of the output pulse string met the requirements.
By gain of the energy supply device to laser pulse in control linear resonant cavity or ring resonator, met
It is required that output pulse string energy.
Advantages of the present invention:
The present invention uses linear resonant cavity or ring resonator, and one of reflecting mirror is the reflection of fractional transmission part
Mirror can export an output pulse as outgoing mirror whenever pulse laser to outgoing mirror, form output pulse string, pass through
Control the high pressure duration of Pockers cell, the quantity of the output pulse string met the requirements；Pass through energy in control resonant cavity
Measure gain of the device for supplying to laser pulse, the energy of the output pulse string met the requirements；The output arteries and veins of high repetition frequency
Punching string is the double structure train of pulse of the subpulse string in the pulse envelope of low-repetition-frequency comprising high repetition frequency, pulse envelope
Repetition rate is determined that the repetition rate of the subpulse string in each pulse envelope is by ring resonator by repetition rate transformation system
Length determine.
Detailed description of the invention
Fig. 1 is that high repetition frequency ultrashort pulse string generation device of the invention is illustrated using the optical path of linear resonant cavity
Figure；
Fig. 2 is the internal schema point of high repetition frequency ultrashort pulse string generation device of the invention using linear resonant cavity
Figure；
Fig. 3 is the schematic diagram that high repetition frequency ultrashort pulse string generation device of the invention uses ring resonator
Fig. 4 is the internal schema point of high repetition frequency ultrashort pulse string generation device of the invention using ring resonator
Figure.
Specific embodiment
With reference to the accompanying drawing, by specific embodiment, the present invention is further explained.
Embodiment one
As shown in Figure 1, the present embodiment uses linear resonant cavity, high repetition frequency ultrashort pulse string generation device packet
It includes: millijoule laser impulse amplification system, repetition rate transformation system, linear resonant cavity, polarizer, Pockers cell, a quarter
Wave plate and energy supply device；Wherein, energy supply device includes gain crystal 24 and pumping source 26, and pumping source 26 is connected to increasing
Beneficial crystal 24；Linear resonant cavity is made of opposite end mirror 21 and outgoing mirror 27, and end mirror 21 is high reflective mirror, and outgoing mirror 27 is part
Reflective portion diaphotoscope；Quarter-wave plate 28, Pu Keer are sequentially placed from end mirror 21 to outgoing mirror 27 in linear resonant cavity
Box 22, polarizer 23 and gain crystal 24；The laser pulse of millijoule laser impulse amplification system output low frequency rate low energy, through weight
The repetition rate of complex frequency transformation system modulation laser pulse；The orthogonal polarized light of repeated frequency conversion system output is by inclined
Vibration device 23 is reflected into linear resonant cavity, at this point, Pockers cell 22 does not apply any voltage, the state of Pockers cell 22 is all-wave
Piece, orthogonal polarized light becomes circularly polarized light after quarter-wave plate 28, and laser pulse again passes by four after the reflection of end mirror 21
/ mono- wave plate 28 and Pockers cell 22, circularly polarized light become the second polarised light, when through polarizer 23 by gain crystal 24,
Energy is amplified, then is transferred to outgoing mirror 27, it is at this time output pulse string that fraction of laser light pulse is exported by outgoing mirror 27
First output pulse, fraction of laser light pulse by outgoing mirror 27 reflect, again pass by gain crystal 24, laser pulse is put
It greatly, include that 27 bring of outgoing mirror is lost in compensation linear resonant cavity；When laser pulse rests on Pockers cell 22 and outgoing mirror
When between 27, change the state of Pockers cell 22, applies quarter-wave voltage to Pockers cell 22, make laser pulse at general gram
It always second is polarized between that box 22 and outgoing mirror 27；Laser pulse is during applying quarter-wave voltage to Pockers cell 22
It is maintained at linear resonant cavity interior resonance, it is every to export an output pulse by the transmission of outgoing mirror 27, form output pulse string；
Laser pulse is divided between output pulse through outgoing mirror 27 by the time of linear resonant cavity one back and forth, interval time t1
=2L1/ c, L1Long for the chamber of linear resonant cavity, c is the light velocity；Not decaying voluntarily also when the intracavitary laser pulse of linear resonance does not terminate, and
When no longer needing to export pulse, when laser pulse being selected to rest between Pockers cell 22 and outgoing mirror 27, Pockers cell 22 is given
It decorporates quarter-wave voltage, the second polarised light passes through Pockers cell 22 twice becomes orthogonal polarized light, and laser pulse is through polarizing
23 back reflection of device goes out linear resonant cavity, and the output pulse string of high repetition frequency terminates at this time；Alternatively, the four of Pockers cell 22/
One wave voltage is kept for the longer time, and until pulse, which voluntarily decays, to be terminated, outgoing mirror 27 terminates output pulse string, this feelings
Under condition, polarizer 23 does not export laser；
As shown in Fig. 2, the output pulse string of high repetition frequency is to repeat frequency comprising high in the pulse envelope of low-repetition-frequency
The repetition rate of the double structure train of pulse of the subpulse string of rate, pulse envelope determines by repetition rate transformation system, double structure arteries and veins
Punching string be repetition for the pulse envelope less than hundred KHz；The repetition rate of subpulse string in each pulse envelope is by linear resonance
The length of chamber determines have the pulse spacing less than 1 μ s inside each envelope, repetition rate is greater than 1MHz, and pulse number is controllable, energy
Amount is greater than the subpulse string of 10 μ J.By controlling the high pressure duration of Pockers cell, the output pulse string met the requirements
Quantity.By gain of the energy supply device to laser pulse in control linear resonant cavity, the output arteries and veins met the requirements
Rush the energy of string.
Embodiment two
As shown in figure 3, the present embodiment uses ring resonator, high repetition frequency ultrashort pulse string generation device packet
It includes: millijoule laser impulse amplification system, repetition rate transformation system, ring resonator, input polarization device 36, output polarizer
38, Pockers cell 22, half-wave plate 37 and energy supply device；Wherein, energy supply device includes gain crystal 24 and pumping source
26, pumping source 26 is connected to gain crystal 24；Ring resonator is made of first to fourth reflecting mirror 31~34, wherein first,
Third and fourth reflecting mirror 31,33 and 34 is that hysteroscope uses high reflective mirror, and the second reflecting mirror 32 is that outgoing mirror uses fractional transmission portion
Divide reflecting mirror；Annular resonance it is intracavitary from the first reflecting mirror to the second reflecting mirror be sequentially placed output polarizer 38, half-wave plate 37,
Pockers cell 22 and input polarization device 36 place gain crystal 24 between third reflecting mirror and the 4th reflecting mirror；Millijoule laser
The laser pulse of pulse amplification system output low frequency rate low energy, the repetition frequency of repeated frequency conversion system modulation laser pulse
Rate；The orthogonal polarized light of repeated frequency conversion system output is reflected into ring resonator by input polarization device 36, at this point,
Pockers cell 22 does not apply any voltage, and the state of Pockers cell 22 is full-wave plate, and orthogonal polarized light becomes after half-wave plate 37
Second polarised light, laser pulse through output polarizer 38 transmit after, through first and the 4th reflecting mirror 31 and 34 reflect after through increasing
When beneficial crystal 24, energy is amplified, again passes by and is transmitted to the output of the second reflecting mirror 32 after third reflecting mirror 33 reflects, this
When for output pulse string first output pulse, fraction of laser light pulse by the second reflecting mirror reflection return；Work as laser pulse
When resting between the second reflecting mirror and Pockers cell 22, change the state of Pockers cell 22, applies half-wave to Pockers cell 22
Voltage polarizes laser pulse always second between Pockers cell 22 and the second reflecting mirror 32；Laser pulse is to Pu Keer
Box 22 is maintained at ring resonator interior resonance during applying half-wave voltage, every to export one by the transmission of the second reflecting mirror 32
Pulse is exported, output pulse string is formed；Laser pulse is divided between output pulse through the second reflecting mirror 32 by annular resonance
The time of one, chamber back and forth, interval time t2=L2/ c, L2Long for the chamber of ring resonator, c is the light velocity；Work as ring resonator
Also voluntarily decaying does not terminate interior laser pulse, and when no longer needing to export pulse, laser pulse is selected to rest on Pockers cell 22
And second between reflecting mirror when, decorporate half-wave voltage to Pockers cell 22, the second polarised light passes through Pockers cell 22 and half-wave plate
37 become orthogonal polarized light, and laser pulse goes out ring resonator through exporting 38 back reflection of polarizer, and high repetition frequency is defeated at this time
Train of pulse terminates out；Alternatively, the half-wave voltage of Pockers cell 22 is kept for longer time, until pulse voluntarily decay terminate be
Only, the 4th reflecting mirror 34 terminates output pulse string, and in this case, output polarizer 38 does not export laser；High repetition frequency
Output pulse string be low-repetition-frequency pulse envelope in comprising high repetition frequency subpulse string double structure train of pulse, arteries and veins
The repetition rate for rushing envelope is determined that the repetition rate of the subpulse string in each pulse envelope is by ring by repetition rate transformation system
The length of shape resonant cavity determines.
As shown in figure 4, the output pulse string of high repetition frequency is to repeat frequency comprising high in the pulse envelope of low-repetition-frequency
The repetition rate of the double structure train of pulse of the subpulse string of rate, pulse envelope determines by repetition rate transformation system, double structure arteries and veins
Punching string be repetition for the pulse envelope less than hundred KHz；The repetition rate of subpulse string in each pulse envelope is by annular resonance
The length of chamber determines have the pulse spacing less than 1 μ s inside each envelope, repetition rate is greater than 1MHz, and pulse number is controllable, energy
Amount is greater than the subpulse string of 10 μ J.By controlling the high pressure duration of Pockers cell, the output pulse string met the requirements
Quantity.By gain of the energy supply device to laser pulse in control ring resonator, the output arteries and veins met the requirements
Rush the energy of string
It is finally noted that the purpose for publicizing and implementing example is to help to further understand the present invention, but this field
Technical staff be understood that without departing from the spirit and scope of the invention and the appended claims, it is various replacement and repair
It is all possible for changing.Therefore, the present invention should not be limited to embodiment disclosure of that, and the scope of protection of present invention is to weigh
Subject to the range that sharp claim defines.
Claims (10)
1. a kind of high repetition frequency ultrashort pulse string generation device, which is characterized in that use linear resonant cavity, the laser
Train of pulse generation device includes: millijoule laser impulse amplification system, repetition rate transformation system, linear resonant cavity, polarizer, general
Kerr cell, quarter-wave plate and energy supply device；Wherein, the linear resonant cavity is made of end mirror and outgoing mirror, end mirror
For high reflective mirror, outgoing mirror is fractional transmission partially reflecting mirror；Four points are sequentially placed from end mirror to outgoing mirror in linear resonant cavity
One of wave plate, Pockers cell, polarizer and energy supply device；Millijoule laser impulse amplification system output low frequency rate laser arteries and veins
Punching, the repetition rate of repeated frequency conversion system modulation laser pulse；First polarization of repeated frequency conversion system output
Light is reflected into linear resonant cavity by polarizer, at this point, Pockers cell does not apply any voltage, the state of Pockers cell is complete
Wave plate, the first polarised light becomes circularly polarized light after quarter-wave plate, and laser pulse again passes by four points after end mirror reflects
One of wave plate and Pockers cell, circularly polarized light become the second polarised light, the polarization state of the first polarised light and the second polarised light is
Linear polarization, and polarization direction is vertical；When passing through energy supply device through polarizer, energy is amplified, then is transferred to defeated
Appearance, fraction of laser light pulse are exported by outgoing mirror, are at this time first output pulse of output pulse string, fraction of laser light pulse
It is reflected through outgoing mirror, again passes by energy supply device, laser pulse is amplified, and includes outgoing mirror band in compensation linear resonant cavity
The loss come；When laser pulse rests between Pockers cell and outgoing mirror, apply quarter-wave voltage to Pockers cell,
Change the state of Pockers cell, Pockers cell state is quarter-wave plate at this time, to make the polarization state of laser pulse general
It always second is polarized between kerr cell and outgoing mirror；Laser pulse is kept during applying quarter-wave voltage to Pockers cell
It is every to export an output pulse by output mirror transmission in linear resonant cavity interior resonance, form output pulse string；Through exporting
Laser pulse is divided between the output pulse of mirror by the time of linear resonant cavity one back and forth, interval time t1=2L1/ c,
L1Long for the chamber of linear resonant cavity, c is the light velocity；Not decaying voluntarily also when the intracavitary laser pulse of linear resonance does not terminate, and no longer needs
It when exporting pulse, selects laser pulse when resting between Pockers cell and outgoing mirror, decorporates a quarter to Pockers cell
Wave voltage, the second polarised light passes through Pockers cell twice becomes the first polarised light, and laser pulse is linear out through polarizer back reflection
Resonant cavity, the output pulse string of high repetition frequency terminates at this time；Alternatively, Pockers cell keeps quarter-wave voltage, until swashing
Until light pulse voluntarily decays and terminates, the quarter-wave voltage for Pockers cell of decorporating at this time, outgoing mirror stops that output is high to be repeated
The output pulse string of frequency, in this case, polarizer does not export laser；The output pulse string of high repetition frequency is low repetition
The double structure train of pulse of subpulse string in the pulse envelope of frequency comprising high repetition frequency, the repetition rate of pulse envelope is by weight
Complex frequency transformation system determines that the repetition rate of the subpulse string in each pulse envelope is determined by the length of linear resonant cavity.
2. laser pulse train generation device as described in claim 1, which is characterized in that the end mirror of the linear resonant cavity it is anti-
Rate is penetrated greater than 99%；The reflectivity of outgoing mirror is greater than 70% less than 98%.
3. a kind of high repetition frequency ultrashort pulse string generation device, which is characterized in that use ring resonator, the laser
Train of pulse generation device includes: millijoule laser impulse amplification system, repetition rate transformation system, ring resonator, input polarization
Device, output polarizer, Pockers cell, half-wave plate and energy supply device；Wherein, the ring resonator is anti-by first to fourth
Mirror composition is penetrated, wherein the first, third and fourth reflecting mirror is that hysteroscope uses high reflective mirror, the second reflecting mirror is that outgoing mirror uses part
Transmissive portion reflecting mirror；Polarizer, half-wave are exported in intracavitary be sequentially placed from the first reflecting mirror to the second reflecting mirror of annular resonance
Piece, Pockers cell and input polarization device place energy supply device between third reflecting mirror and the 4th reflecting mirror；Millijoule laser
Pulse amplification system output low frequency rate laser pulse, the repetition rate of repeated frequency conversion system modulation laser pulse；Through weight
First polarised light of complex frequency transformation system output is reflected into ring resonator by input polarization device, at this point, Pockers cell
Not applying any voltage, the state of Pockers cell is full-wave plate, and the first polarised light becomes the second polarised light after half-wave plate, first
The polarization state of polarised light and the second polarised light is linear polarization, and polarization direction is vertical, and the second polarization laser pulse is inclined through exporting
Shake device transmission after, through first and the 4th reflecting mirror reflection after by energy supply device when, energy is amplified, is again passed by
It is transmitted to the output of the second reflecting mirror after the reflection of third reflecting mirror, is at this time first output pulse of output pulse string, part is swashed
Light pulse is reflected through the second reflecting mirror to be returned；When laser pulse is to rest in Pockers cell, apply half-wave to Pockers cell
Voltage changes the state of Pockers cell, and Pockers cell state is half-wave plate at this time, so that the polarization state of laser pulse be made to pass through
It always second is polarized when exporting polarizer and input polarization device；Laser pulse is kept during applying half-wave voltage to Pockers cell
It is every to export an output pulse by the transmission of the second reflecting mirror in ring resonator interior resonance, form output pulse string；Through
Laser pulse is divided between the output pulse of second reflecting mirror by the time of ring resonator one back and forth, interval time t2
=L2/ c, L2Long for the chamber of ring resonator, c is the light velocity；Not decaying voluntarily also when the intracavitary laser pulse of annular resonance does not terminate, and
When no longer needing to export pulse, when laser pulse being selected to rest between Pockers cell and the second reflecting mirror, moved back to Pockers cell
Half-wave voltage is gone, the second polarised light becomes the first polarised light by Pockers cell and half-wave plate, and laser pulse is through exporting polarizer
Back reflection goes out ring resonator, and the output pulse string of high repetition frequency terminates at this time；Alternatively, Pockers cell keeps half-wave voltage,
Until pulse, which voluntarily decays, to be terminated, the half-wave voltage for Pockers cell of decorporating at this time, the 4th reflecting mirror stops the high repetition of output
The output pulse string of frequency, in this case, output polarizer do not export laser；The output pulse string of high repetition frequency is low
The double structure train of pulse of subpulse string in the pulse envelope of repetition rate comprising high repetition frequency, the repetition rate of pulse envelope
It is determined by repetition rate transformation system, the repetition rate of the subpulse string in each pulse envelope is determined by the length of ring resonator
It is fixed.
4. laser pulse train generation device as claimed in claim 3, which is characterized in that first, the of the ring resonator
The reflectivity of three and the 4th reflecting mirror is greater than 99%；The reflectivity of second reflecting mirror is greater than 70% less than 98%.
5. laser pulse train generation device as claimed in claim 1 or 3, which is characterized in that the millijoule laser pulse amplification
System is that repetition rate is less than 100Khz, energy < 10mJ laser amplifier system.
6. laser pulse train generation device as claimed in claim 1 or 3, which is characterized in that the repetition rate transformation system
Using Pockers cell, the repetition rate of pulse envelope is modulated, to make the repetition rate of pulse envelope can in 100KHz~1Hz
It adjusts.
7. laser pulse train generation device as claimed in claim 1 or 3, which is characterized in that the polarizer is inclined to first
Shake laser reflection, transmits to the second polarization laser；Using the three-dimensional polarizer based on birefringence, or based on polarization
The sheet-like polarizing plate of plated film.
8. laser pulse train generation device as claimed in claim 1 or 3, which is characterized in that the energy supply device includes
Gain crystal and pumping source, pumping source pump gain crystal, and gain crystal is located in resonant cavity, swash for what is recycled in resonant cavity
Light pulse provides gain amplification；By the gain of control linear resonant cavity or ring resonator, the output arteries and veins met the requirements
Rush the energy of string.
9. a kind of control method of high repetition frequency ultrashort pulse string generation device as described in claim 1, feature
Be, using linear resonant cavity, the control method the following steps are included:
1) millijoule laser impulse amplification system output low frequency rate laser pulse, repeated frequency conversion system modulation laser pulse
Repetition rate；
2) the first polarised light of repeated frequency conversion system output is reflected into linear resonant cavity by polarizer, at this point, general
Kerr cell does not apply any voltage, and the state of Pockers cell is full-wave plate, and the first polarised light becomes round after quarter-wave plate
Polarised light, laser pulse again pass by quarter-wave plate and Pockers cell after end mirror reflects, and circularly polarized light becomes second partially
Shake light, and the polarization state of the first polarised light and the second polarised light is linear polarization, and polarization direction is vertical；Pass through energy through polarizer
Measure device for supplying when, energy is amplified, then be transferred to outgoing mirror, fraction of laser light pulse by outgoing mirror output, at this time for
First output pulse of output pulse string, fraction of laser light pulse are reflected through outgoing mirror, again pass by energy supply device, laser
Pulse is amplified, and includes that outgoing mirror bring is lost in compensation linear resonant cavity；
3) when laser pulse rests between Pockers cell and outgoing mirror, apply quarter-wave voltage to Pockers cell, change
Become the state of Pockers cell, Pockers cell state is quarter-wave plate at this time, to make the polarization state of laser pulse at general gram
It always second is polarized between that box and outgoing mirror；
4) laser pulse is maintained at linear resonant cavity interior resonance, every process during applying quarter-wave voltage to Pockers cell
Output mirror transmission can export an output pulse, form output pulse string；Laser is divided between output pulse through outgoing mirror
The time of linear resonant cavity one back and forth, interval time t are passed through in pulse1=2L1/ c, L1Long for the chamber of linear resonant cavity, c is
The light velocity；
5) when also voluntarily decaying does not terminate the intracavitary laser pulse of linear resonance, and no longer needs to export pulse, laser arteries and veins is selected
Punching is when resting between Pockers cell and outgoing mirror, decorporates quarter-wave voltage to Pockers cell, and the second polarised light passes through twice
Crossing Pockers cell becomes the first polarised light, laser pulse goes out linear resonant cavity through polarizer back reflection, at this time high repetition frequency
Output pulse string terminates；Alternatively, Pockers cell keeps quarter-wave voltage, until laser pulse, which is voluntarily decayed, to be terminated,
It decorporates at this time the quarter-wave voltage of Pockers cell, outgoing mirror stops the output pulse string of output high repetition frequency, this
In the case of, polarizer does not export laser；The output pulse string of high repetition frequency is in the pulse envelope of low-repetition-frequency comprising height
The repetition rate of the double structure train of pulse of the subpulse string of repetition rate, pulse envelope determines by repetition rate transformation system, often
The repetition rate of subpulse string in a pulse envelope is determined by the length of linear resonant cavity.
10. a kind of control method of high repetition frequency ultrashort pulse string generation device as claimed in claim 3, feature
Be, using ring resonator, the control method the following steps are included:
1) millijoule laser impulse amplification system output low frequency rate laser pulse, repeated frequency conversion system modulation laser pulse
Repetition rate；
2) the first polarised light of repeated frequency conversion system output is reflected into ring resonator by input polarization device, this
When, Pockers cell does not apply any voltage, and the state of Pockers cell is full-wave plate, and the first polarised light becomes second after half-wave plate
The polarization state of polarised light, the first polarised light and the second polarised light is linear polarization, and polarization direction is vertical, the second polarization laser arteries and veins
Punching after export polarizer transmission, through first and the 4th reflecting mirror reflect after by energy supply device when, energy is put
Greatly, it is transmitted to the output of the second reflecting mirror after again passing by the reflection of third reflecting mirror, is at this time first output of output pulse string
Pulse, fraction of laser light pulse is reflected through the second reflecting mirror to be returned；
3) when laser pulse is to rest in Pockers cell, apply half-wave voltage to Pockers cell, change the shape of Pockers cell
State, Pockers cell state is half-wave plate at this time, to make the polarization state of laser pulse by output polarizer and input polarization
It always second is polarized when device；
4) laser pulse is maintained at ring resonator interior resonance during applying half-wave voltage to Pockers cell, every anti-by second
An output pulse can be exported by penetrating mirror transmission, form output pulse string；It is divided between output pulse through the second reflecting mirror sharp
The time of ring resonator one back and forth, interval time t are passed through in light pulse2=L2/ c, L2Long for the chamber of ring resonator, c is
The light velocity；
5) when also voluntarily decaying does not terminate the intracavitary laser pulse of annular resonance, and no longer needs to export pulse, laser arteries and veins is selected
Punching is when resting between Pockers cell and the second reflecting mirror, decorporates half-wave voltage to Pockers cell, and the second polarised light passes through general gram
That box and half-wave plate become the first polarised light, and laser pulse goes out ring resonator through exporting polarizer back reflection, high repetition at this time
The output pulse string of frequency terminates；Alternatively, Pockers cell keeps half-wave voltage to decorporate until pulse, which voluntarily decays, to be terminated
The half-wave voltage of Pockers cell, the 4th reflecting mirror stop the output pulse string of output high repetition frequency, in this case, output
Polarizer does not export laser；The output pulse string of high repetition frequency is in the pulse envelope of low-repetition-frequency comprising high repetition frequency
Subpulse string double structure train of pulse, the repetition rate of pulse envelope determines by repetition rate transformation system, each pulse packet
The repetition rate of subpulse string in network is determined by the length of ring resonator.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110097994A (en) * | 2019-05-13 | 2019-08-06 | 浙江大学 | A kind of system and method for repeating to capture microballoon based on pulse laser |
| CN111864517A (en) * | 2020-07-29 | 2020-10-30 | 中国科学院长春光学精密机械与物理研究所 | Laser pulse waveform purification method and system |
| CN112968343A (en) * | 2021-02-02 | 2021-06-15 | 中国科学院上海光学精密机械研究所 | High-efficiency intracavity laser harmonic conversion device based on regenerative amplifier |
| CN115016133A (en) * | 2022-06-02 | 2022-09-06 | 北京理工大学 | Novel carrier modulation pulse generation device and method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100246616A1 (en) * | 2008-10-16 | 2010-09-30 | Coherent, Inc. | Cavity-dumped pulsed solid-state laser with variable pulse-duration |
| US20100272137A1 (en) * | 2009-04-28 | 2010-10-28 | Daniel Kopf | Laser amplifier system and laser amplifier method |
| WO2014041441A1 (en) * | 2012-09-17 | 2014-03-20 | Uab Mgf Sviesos Konversija | Regenerative optical amplifier for short pulsed lasers, a laser source and a laser workstation |
| CN106253043A (en) * | 2016-08-31 | 2016-12-21 | 中国科学院半导体研究所 | A kind of temporal envelope pattern adjustable burst pulse laser regenerative amplifier |
| CN106531607A (en) * | 2015-09-14 | 2017-03-22 | 布鲁克道尔顿有限公司 | Blanking out of pulses in pulsed lasers for ldi mass spectrometers |
-
2019
- 2019-01-25 CN CN201910083018.5A patent/CN109599741B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100246616A1 (en) * | 2008-10-16 | 2010-09-30 | Coherent, Inc. | Cavity-dumped pulsed solid-state laser with variable pulse-duration |
| US20100272137A1 (en) * | 2009-04-28 | 2010-10-28 | Daniel Kopf | Laser amplifier system and laser amplifier method |
| WO2014041441A1 (en) * | 2012-09-17 | 2014-03-20 | Uab Mgf Sviesos Konversija | Regenerative optical amplifier for short pulsed lasers, a laser source and a laser workstation |
| CN106531607A (en) * | 2015-09-14 | 2017-03-22 | 布鲁克道尔顿有限公司 | Blanking out of pulses in pulsed lasers for ldi mass spectrometers |
| CN106253043A (en) * | 2016-08-31 | 2016-12-21 | 中国科学院半导体研究所 | A kind of temporal envelope pattern adjustable burst pulse laser regenerative amplifier |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110097994A (en) * | 2019-05-13 | 2019-08-06 | 浙江大学 | A kind of system and method for repeating to capture microballoon based on pulse laser |
| CN110097994B (en) * | 2019-05-13 | 2020-08-14 | 浙江大学 | System and method for repeatedly capturing microspheres based on pulse laser |
| CN111864517A (en) * | 2020-07-29 | 2020-10-30 | 中国科学院长春光学精密机械与物理研究所 | Laser pulse waveform purification method and system |
| CN111864517B (en) * | 2020-07-29 | 2023-04-18 | 中国科学院长春光学精密机械与物理研究所 | Laser pulse waveform purification method and system |
| CN112968343A (en) * | 2021-02-02 | 2021-06-15 | 中国科学院上海光学精密机械研究所 | High-efficiency intracavity laser harmonic conversion device based on regenerative amplifier |
| CN115016133A (en) * | 2022-06-02 | 2022-09-06 | 北京理工大学 | Novel carrier modulation pulse generation device and method |
| CN115016133B (en) * | 2022-06-02 | 2023-03-14 | 北京理工大学 | Novel carrier modulation pulse generation device and method |
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Effective date of registration: 20220309 Address after: 201114 unit B2, floor 1, building 35, No. 1188, LIANHANG Road, Minhang District, Shanghai Patentee after: Shanghai ytterbium radium Femtosecond Laser Technology Co.,Ltd. Address before: Room 1506, unit 2, floor 12, building 2, yard 9, West Street, Huilongguan town, Changping District, Beijing 102208 Patentee before: BEIJING WAVE QUANTA TECHNOLOGY Co.,Ltd. |