CN107706731A - Saturable absorber based on two-dimentional antimony alkene material and preparation method thereof and Mode-locked laser device - Google Patents
Saturable absorber based on two-dimentional antimony alkene material and preparation method thereof and Mode-locked laser device Download PDFInfo
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- CN107706731A CN107706731A CN201710781321.3A CN201710781321A CN107706731A CN 107706731 A CN107706731 A CN 107706731A CN 201710781321 A CN201710781321 A CN 201710781321A CN 107706731 A CN107706731 A CN 107706731A
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- Prior art keywords
- saturable absorber
- dimensional material
- antimony alkene
- fiber
- antimony
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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
- H01S3/11—Mode locking; Q-switching; Other giant-pulse techniques, e.g. cavity dumping
- H01S3/1106—Mode locking
- H01S3/1112—Passive mode locking
- H01S3/1115—Passive mode locking using intracavity saturable absorbers
- H01S3/1118—Semiconductor saturable absorbers, e.g. semiconductor saturable absorber mirrors [SESAMs]; Solid-state saturable absorbers, e.g. carbon nanotube [CNT] based
Abstract
The invention provides a kind of saturable absorber based on antimony alkene two-dimensional material, the saturable absorber based on antimony alkene two-dimensional material includes fiber waveguide and is arranged on the antimony alkene two-dimensional material of light guide surface.Because antimony alkene two-dimensional material stability is preferable, antioxygenic property is excellent, and obtained saturable absorber stability is preferable, can be used for passive mode-locking for a long time.Present invention also offers a kind of preparation method of the saturable absorber based on antimony alkene two-dimensional material, including：The solution containing antimony alkene two-dimensional material is taken, solution is added dropwise to the surface of fiber waveguide, saturable absorber is made after drying.The preparation method can be prepared by the saturable absorber, method is simple to operation by the way that the solution containing antimony alkene two-dimensional material is added dropwise in light guide surface after drying.Present invention also offers a kind of Mode-locked laser device, the Mode-locked laser device stability is preferable, and operation wavelength is wider, can be worked with long-time stable, while can be used for passive Q-adjusted technology.
Description
Technical field
The present invention relates to field of lasers, and in particular to a kind of saturable absorber and its system based on two-dimentional antimony alkene material
Preparation Method and Mode-locked laser device.
Background technology
LASER Light Source has the advantages that high brightness, good directionality and monochromaticjty.In the application of reality, it is desirable to laser
There is greater concentration of energy in short time, but common continuous laser can not meet the requirement.Pulse laser can produce
The ultra-short pulse laser source that brightness is high, energy is big, therefore have in fields such as basic science, industrial processes and communications important
Using.
Producing the technology of pulse laser at present includes mode-locking technique and Q-regulating technique, and according to the mode of action, mode-locking technique is divided into
Active mode locking and passive mode-locking, Q-regulating technique are also classified into actively Q-switched technology and passive Q-adjusted technology.For at present, passive mode-locking skill
Art is the ultrashort pulse most effectual way of megahertz sub- above repetition rate below direct generation picosecond magnitude.Passive mode-locking technology
Key be to select reliable and stable saturable absorber.Saturable absorber material should possess that stability is good, and working range is big,
The features such as damage threshold is high.Current existing saturated absorbing body material includes semiconductor saturable absorbing mirror, and graphene with
Black phosphorus etc. is two-dimensional material of representative etc..But the semiconductor absorbing mirror that can satisfy has that working range is small, and the higher grade of cost of manufacture lacks
Point；The shortcomings that grapheme material and black phosphorus material, is that its stability is not good enough, easy oxidation deterioration, can not work long hours.
Therefore, it is necessary to provide a kind of stability more preferable saturable absorber.
The content of the invention
To solve the above problems, the invention provides a kind of saturable absorber and preparation method thereof and Mode-locked laser
Device, the saturable absorber stable performance, the Mode-locked laser device can be worked with long-time stable.
First aspect present invention provides a kind of saturable absorber based on antimony alkene two-dimensional material, described to be based on antimony alkene two
The saturable absorber of dimension material includes fiber waveguide and is arranged on the antimony alkene two-dimensional material of the light guide surface.
Wherein, when the fiber waveguide is micro-nano fiber, the antimony alkene two-dimensional material is coated on the table of the micro-nano fiber
Face.
Wherein, the antimony alkene two-dimensional material is along the coated length on optical propagation direction on the surface of the micro-nano fiber
100-300μm。
Wherein, when the fiber waveguide is clear glass, the antimony alkene two-dimensional material is arranged on the one of the clear glass
Side surface.
Wherein, the number of plies of the antimony alkene two-dimensional material is individual layer or 2-10 layers.
The saturable absorber based on antimony alkene two-dimensional material that first aspect present invention provides, due to the antimony alkene two
Tie up that stability of material is preferable, and antioxygenic property is excellent, it is preferable to obtain saturable absorber stability, and it is passive to be used for for a long time
Locked mode.
Second aspect of the present invention provides a kind of preparation method of the saturable absorber based on antimony alkene two-dimensional material, including
Following steps：
The solution containing antimony alkene two-dimensional material is taken, the solution is added dropwise to the surface of the fiber waveguide, is made after drying
The saturable absorber；The saturable absorber includes fiber waveguide and is arranged on the antimony alkene two dimension of the light guide surface
Material.
Wherein, after the solution being added dropwise to the surface of the fiber waveguide, it is 980nm that wavelength is passed through in the fiber waveguide
LASER Light Source or amplified spontaneous emission source that centre wavelength is 1550nm, promote the antimony alkene two-dimensional material to deposit to described
In fiber waveguide, after irradiating 1-2 hours, the saturable absorber is made.
The preparation method for the saturable absorber that second aspect of the present invention provides, the preparation method pass through in the light wave
Lead surface and the solution containing antimony alkene two-dimensional material is added dropwise, can be prepared by saturable absorber after drying, method is simple to operation.
Third aspect present invention provides a kind of Mode-locked laser device, including the saturable as described in above-mentioned first aspect
Absorber.
Wherein, the Mode-locked laser device is full-optical-fiber laser or all solid state laser.
Wherein, the full-optical-fiber laser include along optical propagation direction pass sequentially through single-mode fiber connection pumping source, the
One Polarization Controller, the saturable absorber, fiber coupler, the second Polarization Controller, the unrelated isolator of polarization, gain light
Fine and wavelength division multiplexer；Or
The full-optical-fiber laser includes the pumping source, described that polarization-maintaining fiber connection is passed sequentially through along optical propagation direction
Saturable absorber, fiber coupler, polarization unrelated isolator, gain fibre and wavelength division multiplexer；
The all solid state laser include set gradually along optical propagation direction pumping source, input mirror, condenser lens, gain
Medium, the saturable absorber and outgoing mirror.
The Mode-locked laser device that third aspect present invention provides, stability is preferable, and operation wavelength is wider, can be for a long time
Steady operation, while can be used for passive Q-adjusted technology.
To sum up, beneficial effect of the present invention includes the following aspects：
1st, the saturable absorber based on antimony alkene two-dimensional material provided by the invention, due to the antimony alkene two-dimensional material
Stability is preferable, and antioxygenic property is excellent, and it is preferable to obtain saturable absorber stability, can be used for passive mode-locking for a long time；
2nd, the preparation method of saturable absorber provided by the invention, the preparation method in light guide surface by being added dropwise
Solution containing antimony alkene two-dimensional material, saturable absorber is can be prepared by after drying, method is simple to operation；
3rd, Mode-locked laser device provided by the invention, stability is preferable, and operation wavelength is wider, can be with long-time stable work
Make, while can be used for passive Q-adjusted technology.
Brief description of the drawings
Fig. 1 is the preparation process schematic diagram for the saturable absorber that an embodiment of the present invention provides；
Fig. 2 is the structural representation for the full-optical-fiber laser that an embodiment of the present invention provides；
Fig. 3 is the structural representation for all solid state laser that an embodiment of the present invention provides；
Fig. 4 is the mode locking pulse light source result figure that embodiment 1 provides, wherein, figure a is light source light spectrogram；Figure b is pulse sequence
Row figure；Figure c is pulse width measuring figure；It is pulse stability and snr measurement figure to scheme d；
Fig. 5 is the pulse stability design sketch for the Mode-locked laser device that the present embodiment 1 provides.
Embodiment
As described below is the preferred embodiment of the present invention, it is noted that for those skilled in the art
For, under the premise without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications are also considered as
Protection scope of the present invention.
Embodiment of the present invention first aspect provides a kind of saturable absorber based on antimony alkene two-dimensional material, the base
Include fiber waveguide in the saturable absorber of antimony alkene two-dimensional material and be arranged on the antimony alkene two-dimensional material of the light guide surface.
In embodiment of the present invention, the number of plies of the antimony alkene two-dimensional material is individual layer or 2-10 layers.Antimony alkene two-dimensional material is made
For a kind of two-dimensional material, also possess the nonlinear optical properties of correlation, prior feature is that stability is good, and be particularly suitable for use in work
It is saturable absorber materials application in ultrafast laser field.
In embodiment of the present invention, the fiber waveguide is micro-nano fiber.Still optionally further, the micro-nano fiber is by common
Single-mode fiber (SMF-28E) draw cone be prepared into.A diameter of industry conventional selection of micro-nano fiber, does not do particular determination herein.
Alternatively, when the fiber waveguide is micro-nano fiber, the antimony alkene two-dimensional material is coated on the micro-nano fiber surface.It is optional
Ground, the antimony alkene two-dimensional material are 100-300 μm along the coated length on optical propagation direction on the surface of the micro-nano fiber.Enter
Alternatively, coated length is 200 μm to one step.
In embodiment of the present invention, the fiber waveguide is clear glass, when the fiber waveguide is clear glass, the antimony
Alkene two-dimensional material is arranged on a side surface of the clear glass.Alternatively, the antimony alkene two-dimensional material is attached to described transparent
One side surface of glass.
First aspect present invention provides a kind of saturable absorber based on antimony alkene two-dimensional material, including fiber waveguide and
It is arranged on the antimony alkene two-dimensional material of the light guide surface.Wherein, the antimony alkene two-dimensional material stability is preferable, antioxygenic property
It is excellent, passive mode-locking can be used for for a long time.
Embodiment of the present invention second aspect provides a kind of preparation of the saturable absorber based on antimony alkene two-dimensional material
Method, comprise the following steps：
The solution containing antimony alkene two-dimensional material is taken, the solution is added dropwise to the surface of the fiber waveguide, is made after drying
The saturable absorber；The saturable absorber includes fiber waveguide and is arranged on the antimony alkene two dimension of the light guide surface
Material.
Alternatively, the solution containing antimony alkene two-dimensional material is made in accordance with the following methods：
Block antimony is taken, the block antimony is ground in the environment of vacuum and obtains antimony powder, the antimony powder is scattered in a solvent
Mixed solution is obtained, the mixed solution is subjected to ultrasound, the supersonic frequency is 20-40kHz, and the ultrasonic time is 20-
40h, the temperature in ultrasonic procedure are not higher than 30 degree, the mixed solution after ultrasound are centrifuged, takes supernatant, that is, obtain described in
Solution containing antimony alkene two-dimensional material.
Still optionally further, the supersonic frequency is 40kHz, ultrasonic time 30h, and the temperature in ultrasonic procedure is room
Temperature.
Alternatively, the centrifugal speed is 1000-1200r/min, and the centrifugation time is 10-30min.It is further optional
Ground, the centrifugal speed are 1200r/min, and the centrifugation time is 20min.
In embodiment of the present invention, after the solution to be added dropwise to the surface of the fiber waveguide, lead in the fiber waveguide
Enter the LASER Light Source that wavelength is 980nm or the amplified spontaneous emission source (ASE light sources) that centre wavelength is 1550nm, promote described
Antimony alkene two-dimensional material is deposited in the fiber waveguide, and after irradiating 1-2 hours, the saturable absorber is made.As shown in figure 1,
Alternatively, when the fiber waveguide is micro-nano fiber 1, after the solution 2 to be added dropwise to the surface of the micro-nano fiber 1, micro-
The LASER Light Source that wavelength is 980nm or the amplified spontaneous emission source that centre wavelength is 1550nm are passed through in nano fiber 1, promotes institute
State antimony alkene two-dimensional material to deposit in the fiber waveguide, after irradiating 1-2 hours, the saturable absorber is made.Alternatively, when
When the fiber waveguide is micro-nano fiber, the micro-nano fiber can be adhered on slide 3 to avoid the folding of micro-nano fiber 1
It is disconnected.In Fig. 1, arrow represents optical propagation direction.
Alternatively, after the solution being added dropwise to the surface of the fiber waveguide, can also be entered by way of natural air drying
Row drying, the saturable absorber is made.
Alternatively, when the fiber waveguide is micro-nano fiber, the solution is added dropwise to the surface of the micro-nano fiber, made
The antimony alkene two-dimensional material is coated on the surface of the micro-nano fiber.
Alternatively, when the fiber waveguide is clear glass, the solution is added dropwise on a surface of the clear glass,
The antimony alkene two-dimensional material is set to be attached to the surface of the clear glass.
Embodiment of the present invention second aspect provides a kind of preparation of the saturable absorber based on antimony alkene two-dimensional material
Method, the preparation method can be prepared by saturable absorption by the way that the solution containing antimony alkene two-dimensional material is added dropwise in light guide surface
Body, method are simple to operation.
The embodiment of the present invention third aspect provides a kind of Mode-locked laser device, including as described in above-mentioned first aspect
Saturable absorber.
Alternatively, the Mode-locked laser device is full-optical-fiber laser or all solid state laser.
In first embodiment of the invention, as shown in Fig. 2 the full-optical-fiber laser includes setting successively along optical propagation direction
Pumping source 101, the first Polarization Controller 102, the saturable absorber 103, the polarization of fiber coupler 104, second put are controlled
Device 105 processed, polarization unrelated isolator 106, gain fibre 107 and wavelength division multiplexer 108.Wherein, the full-optical-fiber laser
Pumping source 101 is the laser diode light source that wavelength is 980nm, and peak power is 500 milliwatts.Gain fibre 107 includes er-doped
Optical fiber, gain media of the Er-doped fiber as laser, length are 0.7 meter, and GVD is -10.55ps/nm/km.Polarize nothing
It is uncorrelated to polarize to close isolator 106, for ensureing laser one-way transmission in loop configuration.The laser of fiber coupler 104 is defeated
Go out than the export ratio from 10%.Alternatively, the full-optical-fiber laser includes two Polarization Controllers, for adjusting single mode
The birefringence of optical fiber.Connected between each device by common SMF28e optical fiber, the total length of the ring laser of formation
About 18.5 meters, the dispersion of SMF28e optical fiber is -18ps/nm/km.The operation wavelength of laser is located at 1550 nms, tool
Body numerical value is 1557.68 nanometers.The oscillation threshold of laser is 30 milliwatts, and the threshold value of pulse laser is 150 milliwatts.Laser exports
Measured by spectrometer and oscillograph.The measurement of pulse width utilizes autocorrelation function analyzer (FR-103XL).Alternatively, it is described to satisfy
By micro-nano fiber and it is coated on the antimony alkene two-dimensional material on the micro-nano fiber surface with absorber and forms.Due to saturated absorbing body
In strong the evanescent wave effect and power density on micro-nano fiber surface strengthen and cause light and be coated on the two-dimentional material of light guide surface
Strong nonlinear interaction occurs for material, generates saturated absorption.
In second embodiment of the invention, the full-optical-fiber laser includes passing sequentially through polarization holding along optical propagation direction
The pumping source of optical fiber connection, the saturable absorber, fiber coupler, polarization unrelated isolator, gain fibre and wavelength-division are answered
Use device.In the embodiment, the full-optical-fiber laser is without using Polarization Controller, and optical fiber used is all by general single mode fiber
It is changed to polarization-maintaining fiber.Concrete structure on each element can be found in the full-optical-fiber laser of first embodiment.
In third embodiment of the invention, all solid state laser includes the pump light set gradually along optical propagation direction
Source, input mirror, condenser lens, gain media, the saturable absorber and outgoing mirror.
From figure 3, it can be seen that all solid state laser includes pump light source 401, input mirror 402, condenser lens 403, increasing
Beneficial medium 404, saturable absorber 405 and outgoing mirror 406.The pump light that pump light source 401 exports is entered by condenser lens 403
Enter to gain media 404, gain media 404 and encouraged by pump light, excitation signal light.It is complete to flashlight to input mirror 402
Instead, and to pump light full impregnated.Outgoing mirror 406 is that part passes through to flashlight.Input the resonance of mirror and outgoing mirror composition laser
Chamber, saturable absorber produce saturable absorption, laser is produced ultrashort pulse.Alternatively, saturable absorber 405
It is made up of clear glass and the antimony alkene two-dimensional material being attached on clear glass.Alternatively, gain media Yb3+:ScBO3、Nd:
YAG ceramics, Yb:CYA、Cr:ZnSe、Yb:LuYAG、Tm:CaYAlO4、Er:Y2O3Ceramics, Tm:YAG ceramics etc., specifically,
When selecting different gain medias, the operating wave of pump light source, input mirror, condenser lens, saturable absorber, outgoing mirror etc.
The operation wavelength of a length of corresponding gain media.Alternatively pump light source, input mirror, condenser lens and outgoing mirror are that industry is routinely selected
Select, the present invention does not do particular determination.
The Mode-locked laser device that third aspect present invention provides, stability is preferable, and operation wavelength is wider, can be for a long time
Steady operation, while can be used for passive Q-adjusted technology.
Embodiment 1：
A kind of preparation method of the saturable absorber based on antimony alkene two-dimensional material, comprises the following steps：
Block antimony is taken, block antimony is ground in the environment of vacuum and obtains antimony powder, antimony powder is disperseed to be mixed in a solvent
Solution, mixed solution being subjected to ultrasound, supersonic frequency 40kHz, ultrasonic time 30h, the temperature in ultrasonic procedure is room temperature,
Mixed solution after ultrasound is centrifuged, supernatant is taken, centrifugal speed 1200r/min, centrifugation time 20min, that is, is contained
There is the solution of antimony alkene two-dimensional material；
According to shown in accompanying drawing 1, the solution containing antimony alkene two-dimensional material is dripped on the micro-nano fiber prepared in advance, uses ripple
A length of 980 nanometers of light source is irradiated 1h to optical fiber, promotes antimony alkene material to deposit on micro-nano fiber, obtains being based on antimony alkene two
Tie up the saturable absorber of material.
Micro-nano fiber material is connected in optical fiber laser annular chamber, optical fiber laser structure as shown in Figure 2, optical fiber
Laser is used as gain media using Er-doped fiber, and for isolator for ensureing laser one-way transmission in loop configuration, laser is defeated
Go out than the export ratio from 10%.When pump light source is increased to more than 150 milliwatts, it can be locked by adjusting Polarization Controller
Mould pulse laser, as shown in Figure 4, Fig. 4 is mode locking pulse light source result figure to the pulse laser property that recorded, wherein, figure a is
Light source light spectrogram；Figure b is pulse sequence diagram；Figure c is pulse width measuring figure；It is pulse stability and snr measurement to scheme d
Figure.Spectrum 3dB width is can be seen that as 4.84 nanometers from figure a.As can be seen that pulse recurrence frequency is from figure b
10.27MHz；As can be seen that pulse width is about 552 femtoseconds from figure c；As can be seen that to measure pulse signal to noise ratio big from figure d
In 50dB.Fig. 5 is the pulse stability design sketch of mode locking pulse optical fiber laser.Per measuring every other hour once, 8 are measured altogether
Hour.As a result prove that spectrum has almost no change, pulse stability is fine.
To sum up, mode locking pulse optical fiber laser pulse recurrence frequency 10MHz provided in an embodiment of the present invention or so, pulse is wide
Degree is about 550 femtoseconds, and pulse signal to noise ratio has good stability up to 50dB, pulse.
Embodiment 2：
A kind of preparation method of the saturable absorber based on antimony alkene two-dimensional material, comprises the following steps：
Block antimony is taken, block antimony is ground in the environment of vacuum and obtains antimony powder, antimony powder is disperseed to be mixed in a solvent
Solution, mixed solution being subjected to ultrasound, supersonic frequency 20kHz, ultrasonic time 20h, the temperature in ultrasonic procedure is room temperature,
Mixed solution after ultrasound is centrifuged, supernatant is taken, centrifugal speed 1000r/min, centrifugation time 10min, that is, is contained
There is the solution of antimony alkene two-dimensional material；
Solution containing antimony alkene two-dimensional material is dripped on the micro-nano fiber prepared in advance, is 1550nm with centre wavelength
Amplified spontaneous emission source 2h is irradiated to optical fiber, promote antimony alkene material to deposit on micro-nano fiber, obtain being based on antimony alkene
The saturable absorber of two-dimensional material.
Embodiment 3：
A kind of preparation method of the saturable absorber based on antimony alkene two-dimensional material, comprises the following steps：
Block antimony is taken, block antimony is ground in the environment of vacuum and obtains antimony powder, antimony powder is disperseed to be mixed in a solvent
Solution, mixed solution being subjected to ultrasound, supersonic frequency 30kHz, ultrasonic time 40h, the temperature in ultrasonic procedure is room temperature,
Mixed solution after ultrasound is centrifuged, supernatant is taken, centrifugal speed 1100r/min, centrifugation time 30min, that is, is contained
There is the solution of antimony alkene two-dimensional material；
Solution containing antimony alkene two-dimensional material is dripped on the micro-nano fiber prepared in advance, is 1550nm with centre wavelength
Amplified spontaneous emission source 2h is irradiated to optical fiber, promote antimony alkene material to deposit on micro-nano fiber, obtain being based on antimony alkene
The saturable absorber of two-dimensional material.
Embodiment described above only expresses the several embodiments of the present invention, and its description is more specific and detailed, but simultaneously
Therefore the limitation to the scope of the claims of the present invention can not be interpreted as.It should be pointed out that for one of ordinary skill in the art
For, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to the guarantor of the present invention
Protect scope.Therefore, the protection domain of patent of the present invention should be determined by the appended claims.
Claims (10)
- A kind of 1. saturable absorber based on antimony alkene two-dimensional material, it is characterised in that it is described based on antimony alkene two-dimensional material can Saturated absorbing body includes fiber waveguide and is arranged on the antimony alkene two-dimensional material of the light guide surface.
- 2. the saturable absorber as claimed in claim 1 based on antimony alkene two-dimensional material, it is characterised in that when the fiber waveguide For micro-nano fiber when, the antimony alkene two-dimensional material is coated on the surface of the micro-nano fiber.
- 3. the saturable absorber as claimed in claim 2 based on antimony alkene two-dimensional material, it is characterised in that the antimony alkene two dimension Material is 100-300 μm along the coated length on optical propagation direction on the surface of the micro-nano fiber.
- 4. the saturable absorber as claimed in claim 1 based on antimony alkene two-dimensional material, it is characterised in that when the fiber waveguide For clear glass when, the antimony alkene two-dimensional material is arranged on a side surface of the clear glass.
- 5. the saturable absorber as claimed in claim 1 based on antimony alkene two-dimensional material, it is characterised in that the antimony alkene two dimension The number of plies of material is individual layer or 2-10 layers.
- 6. a kind of preparation method of the saturable absorber based on antimony alkene two-dimensional material, it is characterised in that comprise the following steps：The solution containing antimony alkene two-dimensional material is taken, the solution is added dropwise to the surface of the fiber waveguide, is made described after drying Saturable absorber；The saturable absorber includes fiber waveguide and is arranged on the antimony alkene two dimension material of the light guide surface Material.
- 7. the preparation method of the saturable absorber as claimed in claim 6 based on antimony alkene two-dimensional material, it is characterised in that will After the solution is added dropwise to the surface of the fiber waveguide, be passed through in the fiber waveguide wavelength be 980nm LASER Light Source or in The a length of 1550nm of cardiac wave amplified spontaneous emission source, promote the antimony alkene two-dimensional material to deposit in the fiber waveguide, irradiate After 1-2 hours, the saturable absorber is made.
- 8. a kind of Mode-locked laser device, it is characterised in that including the saturable absorption as described in claim any one of 1-5 Body.
- 9. Mode-locked laser device as claimed in claim 8, it is characterised in that the Mode-locked laser device swashs for all -fiber Light device or all solid state laser.
- 10. Mode-locked laser device as claimed in claim 9, it is characterised in that the full-optical-fiber laser includes passing along light Broadcast direction pass sequentially through single-mode fiber connection pumping source, the first Polarization Controller, the saturable absorber, fiber coupling Device, the second Polarization Controller, polarization unrelated isolator, gain fibre and wavelength division multiplexer；OrThe full-optical-fiber laser includes passing sequentially through the pumping source of polarization-maintaining fiber connection along optical propagation direction, described satisfied With absorber, fiber coupler, polarization unrelated isolator, gain fibre and wavelength division multiplexer；The all solid state laser include set gradually along optical propagation direction pumping source, input mirror, condenser lens, gain be situated between Matter, the saturable absorber and outgoing mirror.
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| CN109825021A (en) * | 2018-12-27 | 2019-05-31 | 张晗 | A kind of thin polymer film of the alkene containing tellurium and its preparation method and application |
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| CN111653930A (en) * | 2020-04-26 | 2020-09-11 | 深圳瀚光科技有限公司 | Saturable absorber based on boron-alkene two-dimensional material, preparation method thereof and mode-locked pulse laser |
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| CN110589787A (en) * | 2019-10-22 | 2019-12-20 | 中国人民解放军国防科技大学 | Nickel-phosphorus-sulfur two-dimensional material and synthesis and application thereof |
| CN111653930A (en) * | 2020-04-26 | 2020-09-11 | 深圳瀚光科技有限公司 | Saturable absorber based on boron-alkene two-dimensional material, preparation method thereof and mode-locked pulse laser |
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