CN206850211U - One kind is based on 1 micron of all -fiber ultrashort pulse laser caused by dispersive wave - Google Patents
One kind is based on 1 micron of all -fiber ultrashort pulse laser caused by dispersive wave Download PDFInfo
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Abstract
The utility model discloses one kind to be based on 1 micron of all -fiber ultrashort pulse laser caused by dispersive wave, belongs to laser technology, optical fiber optics and non-linear optical field.1 micron of all -fiber ultrashort pulse laser includes successively on optical path direction：Pumping and relevant apparatus, 1.5 micron optical fiber mode-locked lasers, 1.5 micron waveband fibre optic isolaters, optical-fiber bundling device, gain fibre, nonlinear optical fiber, 1 micron waveband fibre optic isolater.Wherein 1.5 micron optical fiber mode-locked lasers can use linear cavity configuration or ring cavity structure；1.5 mum lasers progress frequency conversion can be produced into the output of 1 micron waveband wideband, ultra-short pulses laser using the nonlinear effect in nonlinear optical fiber.Device design is simple, compact-sized, cost-effective, can be applied in the fields such as biomedicine, environmental monitoring, scientific research.
Description
Technical field
The utility model discloses based on 1 micron of all -fiber ultrashort pulse laser caused by dispersive wave, belong to laser skill
Art, optical fiber optics and non-linear optical field.
Background technology
Optical fiber laser has the advantages that small volume, in light weight, compact-sized, high conversion efficiency, output beam quality are good,
Fast development has been obtained in recent years.Ultrashort pulse fiber laser with its excellent beam quality, unrivaled heat dissipation characteristics,
Efficient electro-optical efficiency, compact apparatus structure, stable laser activity and relatively low maintenance operation expense and progressively
Increasing user's favor is obtained in fields such as material processing, laser medicine, industry manufacture, national defense and military and scientific researches
With the market share, and further turn into each research institution's research and development focus.
In the research of current 1 micron of all -fiber ultrashort pulse laser, psec or the method for femtosecond ultrashort pulse are obtained
Predominantly passive mode-locking technology, typically a saturable absorber is placed in laser cavity, inhaled using its quick saturable
The automodulation that characteristic triggers light wave is received, so as to produce pulse output.It can be wherein divided into entirely again just according to the different of intra-cavity dispersion amount
Dispersion dissipative solitons locked mode and Dispersion-Managed Soliton locked mode.
In Totally positive dispersion dissipative solitons mode-locking technique the most frequently used at present, all elements and optical fiber are at 1 micron in resonator
Wave band is that positive dispersion provides dissipation mechanism to obtain stable locked mode output, this side, it is necessary to add spectral filter in intracavitary
Method can only produce picopulse, it is necessary to the transit chamber external space compression could obtain femtosecond laser export, be unfavorable for all-fiber and set
Meter.And the Dispersion-Managed Soliton mode-locking technique that negative dispersion optical fiber is introduced in intracavitary can directly obtain femtosecond laser output, but mesh
Preceding optical fibre device (such as chirped fiber grating, band gap-photonic crystal fiber, the high-order mode that negative dispersion can be provided in 1 micron waveband
Optical fiber etc.) import, expensive is relied on substantially, the reduction of all -fiber ultrashort pulse laser production cost is limited, is unfavorable for
Industrialized development.
With the development of nonlinear fiber technology, 1 micron wave can be produced by frequency transformation using 1.5 microns of femtosecond lasers
Section femtosecond laser output.1.5 micron waveband laser have developed more ripe, the various optical fiber species of this wave band as communication laser
It is complete, can domesticize and price is relatively cheap, 1.5 microns of passive mode-locking resonators can directly export femto-second laser pulse, then
The dispersion wave source of 1 micron waveband can be obtained by producing super continuum light spectrum using nonlinear optical fiber after being amplified, and can directly obtain 1
The femtosecond laser output of micron waveband.The method designs for all-fiber, without space component, compact-sized, cost is low, need not
Import, make product possess more preferable promotion prospect, enhance its industrial competition.
Utility model content
In order to solve to be difficult to direct optical fiber output femtosecond arteries and veins in 1 micron waveband passive mode-locking ultrashort pulse all-fiber laser device
The problems such as punching exports, compressibility is complicated, cost is high, the utility model is based on dispersive wave generation technology, passive using 1.5 microns
Mode locked fiber laser pumped nonlinear optical fiber produces 1 micron of ultra-short pulse laser output, and the design of its all-fiber is without extra
Modulation device and space compression device, substantially reduce system complexity, realize that highly integrated stable ultra-short pulse laser is defeated
Go out.
To achieve the above object, the utility model adopts the following technical scheme that.
One kind is based on 1 micron of all -fiber ultrashort pulse laser caused by dispersive wave, and the laser includes 1.5 microns of light
Fine mode-locked laser, 1.5 micron optical fiber amplifiers, nonlinear optical fiber, laser output device and other servicing units composition.Wherein
1.5 micron optical fiber mode-locked lasers include pumping source, optical-fiber bundling device or wavelength division multiplexer, gain fibre, laserresonator and
Saturable absorber.1.5 micron optical fiber amplifiers include pumping source, optical-fiber bundling device or wavelength division multiplexer, gain fibre.It is non-thread
Property optical fiber includes nonlinear optical fiber；Laser output device includes fibre optic isolater or fiber optic splitter；Other servicing units include
Spectral filter, optical fiber circulator, Polarization Controller.
Pump light caused by pumping source passes through optical-fiber bundling device or wavelength division multiplexer in 1.5 micron optical fiber mode-locked lasers
It is coupled into resonator, produces continuous laser first in the presence of gain fibre, then by saturable absorption element
Effect produces pulse laser, and caused pulse laser carries out vibration amplification in resonator afterwards, real by laser output device
Existing 1.5 microns of ultra-short pulse lasers output.This laser is imported by wavelength division multiplexer work(is further carried out in fiber amplifier
Rate amplification improves mean power and peak power, realizes 1.5 microns of ultra-short pulse laser outputs of high power, is then conducted into non-
Frequency transformation is carried out in linear optical fiber and directly obtains 1 micron of ultra-short pulse laser.And exported by laser output device.
One kind is based on 1 micron of all -fiber ultrashort pulse laser caused by dispersive wave, it is characterised in that 1.5 micron optical fibers
Mode-locked laser 1 connects the input of 1.5 micron optical fiber isolator 2；The output end of fibre optic isolater 2 connects the signal of wavelength division multiplexer 4
End, pumping source 3 connect the pumping end of wavelength division multiplexer 4；The common port of wavelength division multiplexer 4 connection gain fibre 5 carries out power amplification；Increase
The beneficial other end connected nonlinearity optical fiber 6 of optical fiber 5；The output end of nonlinear optical fiber 6 connects 1 micron optical fiber isolator input；1 micron
Fibre optic isolater input carries out laser output.
1.5 described micron optical fiber mode-locked lasers can be divided into the optical fiber laser of Linear-Cavity or ring cavity structure.
1.5 microns of Linear-Cavity mode locked fiber lasers, it is characterised in that the pump of pumping source 111 and wavelength division multiplexer 112
Pu end connects；The common port of wavelength division multiplexer 112 is connected with gain fibre 113；The other end of gain fibre 113 is inhaled with saturable
Acceptor 114 connects；The laser that saturable absorber 114 reflects reaches wavelength-division after gain fibre and wavelength division multiplexer common port
Mux signal end is connected with reflection-type optical fiber Bragg grating 115；The other end of reflection-type optical fiber Bragg grating 115 and 1.5
Micron optical fiber isolator 116, which is connected, carries out laser output.
1.5 micron ring die cavity mode locked fiber lasers, it is characterised in that the pump of pumping source 111 and wavelength division multiplexer 112
Pu end connects；The common port of wavelength division multiplexer 112 is connected with gain fibre 113；The gain fibre other end and fiber optic splitter 117
Common port is connected, and the beam splitting end 1 of fiber optic splitter is used as laser output mouth；The beam splitting end 2 of fiber optic splitter and fiber annular
The port A of device 119 is connected；Light out returns to circulator port B by circulator port B after saturable absorber 114 reflects, and arrives
Up to circulator port C；Circulator port C is connected with spectral filter 121；The other end of spectral filter 121 and wavelength division multiplexer
112 signal ends are connected to form ring resonator.
Reflection-type optical fiber Bragg grating 115 can also be by being all-trans in 1.5 microns of Linear-Cavity mode locked fiber lasers
Mirror 118 replaces forming resonator, while addition fiber optic splitter 117 and fibre optic isolater 116 are defeated as laser in resonator
Go out device.
Optical fiber circulator 119, saturable absorber 114 are replaceable in the 1.5 micron ring die cavity mode locked fiber laser
Locked mode is carried out for a pair of Polarization Controllers 120,122 and polarization sensitive isolator 116.
Reflection-type optical fiber Bragg grating is that one kind makes fiber core by certain method in the linear cavity resonator structure
Refractive index axial cyclic modulation occurs and is formed diffraction grating, its reflectivity R and reflection wavelength can customize on demand, its
In 0<R<1.
The pumping source is semiconductor laser, solid state laser, gas laser, optical fiber laser or raman laser
Device, the scope for exporting the centre wavelength of pump light are：700nm-1000nm.
The gain fibre is the optical fiber or photonic crystal fiber mixed with rare earth element, wherein the rare earth element adulterated is ytterbium
(Yb), the one or more in neodymium (Nd), erbium (Er), thulium (Tm), holmium (Ho), samarium (Sm), bismuth (Bi).
Described nonlinear optical fiber is to mix one kind in heavy metal ion oxidation glass optical fiber or optical crystal optical fiber.
The saturable absorber is semiconductor saturable absorbing mirror, graphene, graphene oxide, CNT, topology
One or more in insulator.
The pump mode is the single-ended pumping of fibre core, fibre core both-end pumping, the single-ended pumping of covering or covering both-end pumping.
The optical-fiber bundling device is one kind in polarized light beam combining device or non-polarized light bundling device.The optical-fiber bundling device is also
Wavelength division multiplexer can be changed into；
The splitting ratio of described fiber optic splitter is between 0 to 1.
Described wave filter be melting cone fiber wave filter, Fabry-Perot wave filters, multilayer thin-film-filter, Mach-
Once moral interference filter, body grating wave filter, array waveguide grating wave filter (AWG), fiber grating filter, acousto-optic tunable
One kind in wave filter.
Compared with prior art, the utility model has the advantages that.
1st, the utility model carries out frequency transformation in nonlinear optical fiber using 1.5 micron optical fiber lasers and can directly produced
1 micron waveband ultra-short pulse laser exports.
2nd, the utility model need not use 1 micron waveband dispersion managed fiber, be all commercialized using 1.5 micron wavebands
Optical fiber, optical fiber A wide selection of colours and designs, cost are low, are easy to industrialization.
3rd, the utility model can directly produce 1 micron of ultra-short pulse laser output using all optical fibre structure design, it is not necessary to
Extraneous extra-pulse compressor reducer, design are simple, compact-sized.
Brief description of the drawings
Fig. 1 is that embodiment 1 is based on 1 micron of all -fiber ultrashort pulse laser general principle figure caused by dispersive wave.
Fig. 2 is the structure chart when resonator of embodiment 2 is linear structure.
Fig. 3 is the structure chart when resonator of embodiment 3 is linear structure.
Fig. 4 is the structure chart when resonator of embodiment 4 is loop configuration.
Fig. 5 is the structure chart when resonator of embodiment 5 is loop configuration.
In figure：1st, 1.5 micron mode-locked optical fiber laser, 2, fibre optic isolater, 3, pumping source, 4, wavelength division multiplexer, 5, increase
Beneficial optical fiber, 6, nonlinear optical fiber, 7, fibre optic isolater, 111, pumping source, 112, wavelength division multiplexer, 113, gain fibre, 114,
Saturable absorber, 115, reflectivity Fiber Bragg Grating FBG, 116, fibre optic isolater, 117, beam splitter, 118, total reflection
Mirror, 119, optical fiber circulator, the 120, first Polarization Controller, 121, spectral filter, the 122, second Polarization Controller.
Embodiment
The utility model is described in further detail below in conjunction with diagram 1-5, but is not limited only to following several examples.
Embodiment 1
One kind is as shown in Figure 1 based on 1 micron of all -fiber ultrashort pulse laser caused by dispersive wave.1.5 microns of locks in figure
Mode fiber laser 1 is designed for all optical fibre structure, and 1.5 microns of ultrashort arteries and veins are obtained using Linear-Cavity or annular chamber passive mode-locking technology
Impulse light output；Then 1.5 micron optical fiber isolators 2 of connection, it is to prevent light echo reflection, improve stable output power that it, which is acted on,
Property, the signal end of light connects wavelength division multiplexer 4 will be exported, it is 976nm's that the pumping end of wavelength division multiplexer 4, which can connect centre wavelength,
Semiconductor laser diode pumping source 3, the common port of wavelength division multiplexer 4 connect single covering Er-doped fiber 5 that one section of 1m grows and carried out
Power amplification；Er-doped fiber output end directly with the welding of nonlinear optical fiber 6, carries out frequency conversion using nonlinear effect and produces 1
Micron waveband ultra-short pulse laser exports, and then connecting 1 micron optical fiber isolator 7 prevents that light echo reflection, raising power output are steady
It is qualitative.
Embodiment 2
Structure chart when resonator is linear structure is as shown in Figure 2.Pumping source 111 can be selected centre wavelength and be in figure
976nm semiconductor laser diode；It is connected with the pumping end of wavelength division multiplexer 112, pump light is provided for laser；Ripple
The common port of division multiplexer 112 is connected to laser with Er-doped fiber 113 and provides gain；Saturable absorber 114 is to produce lock
The Primary Component of mould pulse, semiconductor saturable absorbing mirror, graphene, graphene oxide, CNT or topology can be selected absolutely
Edge body；The signal end of wavelength division multiplexer 112 is connected with reflection-type optical fiber Bragg grating 115, and it is fixed to play while as hysteroscope
The effect of adopted resonator wavelength；Then 1.5 micron optical fiber isolators 116 of connection prevent light echo reflection, improve stable output power
Property.
Embodiment 3
Structure chart when resonator is linear structure is as shown in Figure 3.Pumping source 111 can be selected centre wavelength and be in figure
976nm semiconductor laser diode；It is connected with the pumping end of wavelength division multiplexer 112, pump light is provided for laser；Ripple
The common port of division multiplexer 112 is connected to laser with Er-doped fiber 113 and provides gain；Saturable absorber 114 is to produce lock
The Primary Component of mould pulse, semiconductor saturable absorbing mirror, graphene, graphene oxide, CNT or topology can be selected absolutely
Edge body；The signal end of wavelength division multiplexer 112 is connected with the common port of fiber optic splitter 117, as intracavitary output device, optical fiber point
Play a part of defining resonator wavelength while with band logical total reflective mirror 118 being connected as hysteroscope in the beam splitting end 1 of beam device 117；Optical fiber
The beam splitting end 2 of beam splitter 117 is connected with 1.5 micron optical fiber isolators 116, and playing prevents light echo reflection, improves stable output power
The effect of property.
Embodiment 4
Structure chart when resonator is loop configuration is as shown in Figure 4.Pumping source 111 can be selected centre wavelength and be in figure
976nm semiconductor laser diode；It is connected with the pumping end of wavelength division multiplexer 112, pump light is provided for laser；Ripple
The common port of division multiplexer 112 is connected to laser with Er-doped fiber 113 and provides gain；Er-doped fiber and fiber optic splitter 117
Common port is connected, and the beam splitting end 1 of fiber optic splitter is used as laser output mouth, beam splitting end 2 and the port A of optical fiber circulator 119
It is connected, circulator port B is returned to after saturable absorber 114 reflects by the light that circulator port B comes out, reaches circulator end
Mouthful C, saturable absorber 114 are the Primary Components for producing mode locking pulse, can be selected semiconductor saturable absorbing mirror, graphene,
Graphene oxide, CNT or topological insulator；Circulator port C connections spectral filter 121, which plays, defines resonator ripple
Long effect；Output light is connected to form ring resonator with the signal end of wavelength division multiplexer 112.
Embodiment 5
Structure chart when resonator is loop configuration is as shown in Figure 5.Pumping source 111 can be selected centre wavelength and be in figure
976nm semiconductor laser diode；It is connected with the pumping end of wavelength division multiplexer 112, pump light is provided for laser；Ripple
The common port of division multiplexer 112 is connected to laser with Er-doped fiber 113 and provides gain；Er-doped fiber and fiber optic splitter 117
Common port is connected, and the beam splitting end 1 of fiber optic splitter is used as laser output mouth, beam splitting end 2 and a pair of Polarization Controllers 120,
122 are connected, and polarization sensitive isolator 116 is added between two Polarization Controllers, and two Polarization Controllers are isolated with Polarization-Sensitive
Device plays a part of saturable absorber jointly, for producing mode locking pulse output.Output light enters in spectral filter 121
Carry out wavelength selection, stable output wavelength.The output end of spectral filter 121 is connected to form annular humorous with wavelength division multiplexer signal end
Shake chamber.
Claims (10)
1. one kind is based on 1 micron of all -fiber ultrashort pulse laser caused by dispersive wave, it is characterised in that：The laser includes
1.5 micron optical fiber mode-locked lasers, 1.5 micron optical fiber amplifiers, nonlinear optical fiber, laser output device；Wherein 1.5 microns of light
Fine mode-locked laser includes pumping source, optical-fiber bundling device or wavelength division multiplexer, gain fibre, laserresonator and saturable absorption
Body；1.5 micron optical fiber amplifiers include pumping source, optical-fiber bundling device or wavelength division multiplexer, gain fibre；Laser output device bag
Include fibre optic isolater or fiber optic splitter；
Pump light caused by pumping source is coupled by optical-fiber bundling device or wavelength division multiplexer in 1.5 micron optical fiber mode-locked lasers
Into in resonator, continuous laser is produced first in the presence of gain fibre, then acted on by saturable absorption element
Pulse laser is produced, caused pulse laser carries out vibration amplification in resonator afterwards, and 1.5 are realized by laser output device
Micron ultra-short pulse laser output；This laser is imported by wavelength division multiplexer power amplification is further carried out in fiber amplifier
Mean power and peak power are improved, 1.5 microns of ultra-short pulse laser outputs of more power is realized, is then conducted into non-linear
Frequency transformation is carried out in optical fiber and directly obtains 1 micron of ultra-short pulse laser；And exported by laser output device.
2. one kind according to claim 1 is based on 1 micron of all -fiber ultrashort pulse laser, its feature caused by dispersive wave
Be, the gain fibre is the optical fiber or photonic crystal fiber mixed with rare earth element, wherein the rare earth element adulterated be ytterbium,
One or more in neodymium, erbium, thulium, holmium, samarium, bismuth；Described nonlinear optical fiber be mix heavy metal ion oxidation glass optical fiber or
One kind in optical crystal optical fiber；The saturable absorber be semiconductor saturable absorbing mirror, graphene, graphene oxide,
One or more in CNT, topological insulator.
3. one kind according to claim 1 is based on 1 micron of all -fiber ultrashort pulse laser, its feature caused by dispersive wave
It is, the pump mode is the single-ended pumping of fibre core, fibre core both-end pumping, the single-ended pumping of covering or covering both-end pumping；It is described
Optical-fiber bundling device is one kind in polarized light beam combining device or non-polarized light bundling device；The splitting ratio of described fiber optic splitter is 0
To between 1.
4. one kind according to claim 1 is based on 1 micron of all -fiber ultrashort pulse laser, its feature caused by dispersive wave
It is, the pumping source is semiconductor laser, solid state laser, gas laser, optical fiber laser or Ramar laser, defeated
The scope for going out the centre wavelength of pump light is：700nm-2000nm.
5. one kind is based on 1 micron of all -fiber ultrashort pulse laser caused by dispersive wave, it is characterised in that 1.5 micron optical fibers are locked
Mode laser (1) connects 1.5 micron optical fiber isolator (2) inputs；Fibre optic isolater (2) output end connects wavelength division multiplexer
(4) signal end, pumping source (3) connection wavelength division multiplexer (4) pumping end；Wavelength division multiplexer (4) common port connection gain fibre (5)
One end carry out power amplification；Gain fibre (5) other end connected nonlinearity optical fiber (6)；The connection 1 of nonlinear optical fiber output end is micro-
Rice fibre optic isolater input；1 micron optical fiber isolator input carries out laser output.
6. one kind according to claim 5 is based on 1 micron of all -fiber ultrashort pulse laser, its feature caused by dispersive wave
It is, the pumping source is semiconductor laser, solid state laser, gas laser, optical fiber laser or Ramar laser, defeated
The scope for going out the centre wavelength of pump light is：700nm-2000nm.
7. one kind according to claim 5 is based on 1 micron of all -fiber ultrashort pulse laser, its feature caused by dispersive wave
It is, reflection-type optical fiber Bragg grating is made up of humorous total reflective mirror replacement in 1.5 microns of Linear-Cavity mode locked fiber lasers
Shake chamber, while adds fiber optic splitter and fibre optic isolater as laser output device in resonator.
8. one kind according to claim 7 is based on 1 micron of all -fiber ultrashort pulse laser, its feature caused by dispersive wave
It is, reflection-type optical fiber Bragg grating is a kind of the refractive index of fiber core to occur by certain method in cavity resonator structure
The diffraction grating that axial cyclic is modulated and formed, its reflectivity R and reflection wavelength can customize on demand, wherein 0<R<1.
9. one kind is based on 1 micron of all -fiber ultrashort pulse laser caused by dispersive wave, it is characterised in that 1.5 micron optical fibers are locked
Mode laser is divided into the optical fiber laser of Linear-Cavity or ring cavity structure；
The pumping end connection of 1.5 microns of Linear-Cavity mode locked fiber lasers, pumping source and wavelength division multiplexer；The public affairs of wavelength division multiplexer
End is connected with one end of gain fibre altogether；The gain fibre other end is connected with saturable absorber；Saturable absorber reflection
Laser reaches wavelength division multiplexer signal end and reflection-type optical fiber Prague light after gain fibre and wavelength division multiplexer common port
One end of grid is connected；The reflection-type optical fiber Bragg grating other end is connected with 1.5 micron optical fiber isolators carries out laser output；
The pumping end connection of 1.5 micron ring die cavity mode locked fiber lasers, pumping source and wavelength division multiplexer；The public affairs of wavelength division multiplexer
End is connected with one end of gain fibre altogether；The gain fibre other end is connected with fiber optic splitter common port, and the one of fiber optic splitter
Individual beam splitting end is as laser output mouth；Another beam splitting end of fiber optic splitter is connected with the port A of optical fiber circulator；Light is by ring
Shape device port B out returns to circulator port B after saturable absorber reflects, and reaches circulator port C；Circulator port C
It is connected with one end of spectral filter；The spectral filter other end is connected to form annular resonance with the signal end of wavelength division multiplexer 112
Chamber.
10. one kind according to claim 9 is based on 1 micron of all -fiber ultrashort pulse laser caused by dispersive wave, it is special
Sign is that optical fiber circulator, saturable absorber replace with a pair of polarizations in the 1.5 micron ring die cavity mode locked fiber laser
Controller and polarization sensitive isolator carry out locked mode.
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| CN108649415A (en) * | 2018-05-16 | 2018-10-12 | 深圳大学 | A kind of thulium doped optical fiber laser amplifier |
| CN109361146A (en) * | 2018-12-24 | 2019-02-19 | 光越科技(深圳)有限公司 | The ultrashort pulse fiber laser seed source system adjusted based on singlechip feedbsck |
| CN109510057A (en) * | 2018-12-14 | 2019-03-22 | 山西大学 | The production method of 1 mu m waveband high-peak power ps pulsed laser and ns pulsed laser |
| CN109510055A (en) * | 2018-11-13 | 2019-03-22 | 徐州诺派激光技术有限公司 | The clock and its working method of optical fiber structure |
| CN110445000A (en) * | 2019-06-30 | 2019-11-12 | 天津大学 | 1000-1100nm tunable wave length fs-laser system |
| CN114421271A (en) * | 2022-03-30 | 2022-04-29 | 北京大学长三角光电科学研究院 | All-fiber neodymium-doped fiber laser |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108649415A (en) * | 2018-05-16 | 2018-10-12 | 深圳大学 | A kind of thulium doped optical fiber laser amplifier |
| CN108649415B (en) * | 2018-05-16 | 2020-04-03 | 深圳大学 | Thulium-doped optical fiber laser amplifier |
| CN109510055A (en) * | 2018-11-13 | 2019-03-22 | 徐州诺派激光技术有限公司 | The clock and its working method of optical fiber structure |
| CN109510057A (en) * | 2018-12-14 | 2019-03-22 | 山西大学 | The production method of 1 mu m waveband high-peak power ps pulsed laser and ns pulsed laser |
| CN109361146A (en) * | 2018-12-24 | 2019-02-19 | 光越科技(深圳)有限公司 | The ultrashort pulse fiber laser seed source system adjusted based on singlechip feedbsck |
| CN110445000A (en) * | 2019-06-30 | 2019-11-12 | 天津大学 | 1000-1100nm tunable wave length fs-laser system |
| CN114421271A (en) * | 2022-03-30 | 2022-04-29 | 北京大学长三角光电科学研究院 | All-fiber neodymium-doped fiber laser |
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| GR01 | Patent grant |