CN107039879B - The method of passive mode-locking vector soliton fiber laser and output vector orphan - Google Patents
The method of passive mode-locking vector soliton fiber laser and output vector orphan Download PDFInfo
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- CN107039879B CN107039879B CN201710291388.9A CN201710291388A CN107039879B CN 107039879 B CN107039879 B CN 107039879B CN 201710291388 A CN201710291388 A CN 201710291388A CN 107039879 B CN107039879 B CN 107039879B
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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
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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
- H01S3/06—Construction or shape of active medium
- H01S3/063—Waveguide lasers, i.e. whereby the dimensions of the waveguide are of the order of the light wavelength
- H01S3/067—Fibre lasers
Abstract
The method of passive mode-locking vector soliton fiber laser and output vector orphan, the pumping source of laser connects optical fibre wavelength division multiplexer reflection end, optical fibre wavelength division multiplexer common end connects Er-doped fiber input terminal, Er-doped fiber output end connects fiber coupler input terminal, fiber coupler the first output end a connection the second Polarization Controller input terminal, second Polarization Controller output end connects polarization beam apparatus input terminal, the b connection of fiber coupler second output terminal polarizes related saturable absorber input terminal, it polarizes related saturable absorber output end and connects the first Polarization Controller input terminal, the connection of first Polarization Controller output end polarizes unrelated isolator input terminal, polarize unrelated isolator output end connection optical fibre wavelength division multiplexer transmission end.Polarization locking vector orphan H polarized component and polarization locking vector orphan V polarized component and polarization spin locking vector orphan H polarized component and polarization spin locking vector orphan V polarized component are exported by laser.
Description
Technical field
The present invention relates to ultrafast pulsed laser technical fields, and in particular to a kind of based on polarizing related saturable absorber
Passive mode-locking vector soliton fiber laser and the method for using laser output vector orphan.
Background technique
In optical fiber laser, due to passive mode-locking vector soliton laser can provide high stability, high light beam quality,
The ultrashort vector soliton pulse of high-energy, is therefore widely used in scientific research, industry, national defence, environment, the energy, communication etc. and people
Closely bound up field of living, have powerful application value.
It is saturable absorber that the most important device of passive mode-locking vector orphan is generated in optical fiber laser.It is common at present
Saturable absorber include semiconductor saturable absorber, carbon nanotube, graphene, topological insulator, molybdenum disulfide etc. can
Saturated absorbing body.These materials are all that polarization is unrelated, and the generation of vector soliton pulse is to polarize unglazed saturable absorber
Under model.
Since the saturable absorber that existing passive mode-locking vector soliton fiber laser uses is the unrelated mould of polarization
Type, there is no the Polarization Dependent Loss problems for considering saturable absorber, and actual saturable absorber device often exists
Polarization Dependent Loss, these Polarization Dependent Loss will affect the stability and mode-lock status of vector soliton fiber laser.
In recent years the two-dimensional material black phosphorus occurred has anisotropic optical characteristics and polarizes related photoresponse, but utilizes
It polarizes the saturable absorber in relation to photoresponse and generates vector orphan in optical fiber laser and be used not yet.
Summary of the invention
It is provided a kind of based on the related saturable absorption of polarization the purpose of the present invention is overcoming above-mentioned the deficiencies in the prior art
The passive mode-locking vector soliton fiber laser of body and the method for using laser output vector orphan, which can be real
Now stable vector orphan output.
The technical scheme is that passive mode-locking vector soliton fiber laser, it uses the conduct of two-dimensional material black phosphorus
Related saturable absorber is polarized, there is anisotropic optical characteristics using two-dimensional material black phosphorus and polarizes related photoresponse
Related saturable absorption is polarized to generate, and realizes stable vector orphan output.
The passive mode-locking vector soliton fiber laser includes pumping source, optical fibre wavelength division multiplexer, Er-doped fiber, light
Fine coupler, the related saturable absorber of polarization, the first Polarization Controller, the unrelated isolator of polarization, the second Polarization Controller and
Polarization beam apparatus.
Pumping source connects the reflection end of optical fibre wavelength division multiplexer, the common end connection Er-doped fiber of optical fibre wavelength division multiplexer
Input terminal, the input terminal of the output end connection fiber coupler of Er-doped fiber, the output end of fiber coupler are divided into the first output
End and second output terminal, wherein the first output end light intensity accounts for the 10% of fiber coupler total light intensity, second output terminal light intensity accounts for optical fiber
The 90% of coupler total light intensity, the first output end of fiber coupler connect the input terminal of the second Polarization Controller, the second polarization control
The input terminal of the output end connection polarization beam apparatus of device processed, the second output terminal connection of fiber coupler polarize related saturable and inhale
The input terminal of acceptor polarizes the input terminal that the output end in relation to saturable absorber connects the first Polarization Controller, the first polarization
The output end connection of controller polarizes the input terminal of unrelated isolator, and the output end connection optical fiber wavelength division for polarizing unrelated isolator is multiple
With the transmission end of device.
The pumping source uses the semiconductor laser of Single-Mode Fiber Coupling, and wavelength is 1480 nm or 980 nm, when
When the wavelength of pumping source is 1480 nm, the operation wavelength of the optical fibre wavelength division multiplexer is 1480/1550 nm.Work as pumping
When the wavelength in source is 980 nm, the operation wavelength of the optical fibre wavelength division multiplexer is 980/1550 nm.
The Er-doped fiber is using the Er-doped fiber of 1~3 m long as laser gain medium, optical fibre wavelength-division multiplex
Device, fiber coupler, the first Polarization Controller and the unrelated isolator of polarization operation wavelength be 1550 nm.
The fiber coupler uses 90: 10 fiber coupler.
First Polarization Controller and the second Polarization Controller are all made of the rotary Polarization Controller of three pieces coil.
The polarization beam apparatus is optical-fiber-coupling type.
It is described to polarize related saturable absorber using transmission-type or reflection-type, polarize related saturable absorber X-direction
Saturable absorption parameter and the saturable absorption parameter of its Y-direction it is inconsistent.Optical fiber fast axle H, which corresponds to, polarizes related saturable
The X-direction of absorber, and optical fiber slow axis V corresponds to Y-direction of the polarization in relation to saturable absorber.
Method using passive mode-locking vector soliton fiber laser output vector orphan is as follows: passive mode-locking vector orphan
Optical fiber laser exports stable the first light pulse and the second light pulse, and the first light pulse is respectively to polarize locking vector orphan H
Polarized component or polarization spin locking vector orphan H polarized component, the second light pulse are respectively to polarize locking vector orphan V polarization
Component or polarization spin locking vector orphan V polarized component.
Passive mode-locking vector soliton fiber laser output polarization locking vector orphan H polarized component and polarization locking vector
Orphan V polarized component and polarization spin locking vector orphan H polarized component and polarization spin locking vector orphan V polarized component are
Polarization locking vector orphan or polarization two kinds of optical signals of spin locking vector orphan are exported to realize by fiber coupler, are adjusted
The angle θ of the power of pumping source and the first Polarization Controller can be realized the conversion of the two.The specific operation method is as follows for it:
A, the output of polarization locking vector orphan polarized component, adjusts the power of pumping source, pumping source power adjustment is arrived
120mW, the angle θ of the first Polarization Controller are 0, at this point, fiber coupler output polarization locking vector orphan optical signal, due to inclined
The related saturable absorption effect of the polarization to shake in relation to saturable absorber, the light of the first output end a output 10% of fiber coupler
Signal, optical signal pass through the second Polarization Controller and polarization beam apparatus, and it is orthogonal to export two polarization directions by polarization beam apparatus
Light pulse, two light pulses are respectively the first light pulse and the second light pulse, and the first light pulse is that polarization locking vector orphan H is inclined
Shake component, and the second light pulse is polarization locking vector orphan V polarized component.
The optical signal of the second output terminal b output 90% of fiber coupler, 90% optical signal is by polarizing related saturable
Absorber, the first Polarization Controller and the unrelated isolator of polarization enter optical fibre wavelength-division multiplex from the transmission end of optical fibre wavelength division multiplexer
Device.
B, the output of spin locking vector orphan's polarized component is polarized, the angle θ to π/4 of the first Polarization Controller is adjusted, this
When, fiber coupler output polarization spin locking vector orphan's optical signal, since polarization of the polarization in relation to saturable absorber has
Saturable absorption effect is closed, the optical signal of the first output end a output 10% of fiber coupler, optical signal is by the second polarization control
Device and polarization beam apparatus processed export the orthogonal light pulse in two polarization directions by polarization beam apparatus, and two light pulses are respectively the
One light pulse and the second light pulse, the first light pulse are polarization spin locking vector orphan H polarized component, and the second light pulse is inclined
Vibration spin locking vector orphan V polarized component.In the output pulse of 100 circle of output end record of laser, H and V two polarizations
There is periodic swinging in the peak value of pulse light intensity of component, but total light intensity keeps stablizing.
The optical signal of the second output terminal b output 90% of fiber coupler, 90% optical signal is by polarizing related saturable
Absorber, the first Polarization Controller and the unrelated isolator of polarization enter optical fibre wavelength-division multiplex from the transmission end of optical fibre wavelength division multiplexer
Device.
Compared with the prior art, the invention has the following features:
The problem of faint Polarization Dependent Loss is constantly present due to existing saturable absorber device, it is provided by the invention
Using passive mode-locking vector soliton fiber laser of the polarization in relation to saturable absorber, in the polarization for considering saturable absorber
It can be realized stable vector orphan's light pulse in the case where dependent loss, more meet practical application.
Detailed construction of the invention is further described below in conjunction with the drawings and specific embodiments.
Detailed description of the invention
Attached drawing 1 is shown to be provided by the invention based on vector soliton fiber laser structure of the polarization in relation to saturable absorber
It is intended to；
Attached drawing 2 is the normalization surface of intensity distribution of two polarized components of H and V of polarization locking vector orphan；
Attached drawing 3 is the phase distribution figure of two polarized components of H and V of polarization locking vector orphan；
Attached drawing 4 is the spectrogram of two polarized components of H and V of polarization locking vector orphan；
Attached drawing 5 is the Poincare sphere figure of 100 circle polarization locking vector orphans；
Attached drawing 6 is the surface of intensity distribution for polarizing the H polarized component of spin locking vector orphan；
Attached drawing 7 is the surface of intensity distribution for polarizing the V polarized component of spin locking vector orphan；
Attached drawing 8 is the total light intensity distribution map for polarizing spin locking vector orphan；
Attached drawing 9 is the Poincare sphere figure of 100 circle polarization spin locking vector orphans；
Attached drawing 10 is the surface of intensity distribution of the 100 circle polarization locking vector orphans after polarization beam apparatus；
Attached drawing 11 is peak power polarization evolution frequency of the 100 circle polarization locking vector orphans after polarization beam apparatus
Figure.
Specific embodiment
Embodiment one, passive mode-locking vector soliton fiber laser, it is related as polarizing using two-dimensional material black phosphorus
Saturable absorber has anisotropic optical characteristics using two-dimensional material black phosphorus and polarizes related photoresponse to realize surely
Fixed vector orphan output.
The passive mode-locking vector soliton fiber laser includes pumping source 1, optical fibre wavelength division multiplexer 2, Er-doped fiber
3, fiber coupler 4, the related saturable absorber 5 of polarization, the first Polarization Controller 6, the unrelated isolator 7, second of polarization polarize
Controller 8 and polarization beam apparatus 9.
Pumping source 1 connects the reflection end of optical fibre wavelength division multiplexer 2, and the common end of optical fibre wavelength division multiplexer 2 connects er-doped light
The input terminal of fibre 3, the input terminal of the output end connection fiber coupler 4 of Er-doped fiber 3, the output end of fiber coupler 4 are divided into
First output end a and second output terminal b, wherein the first output end a light intensity accounts for the 10% of 4 total light intensity of fiber coupler, the second output
End b light intensity accounts for the 90% of 4 total light intensity of fiber coupler, first the second Polarization Controller of output end a connection 8 of fiber coupler 4
Input terminal, the input terminal of the output end connection polarization beam apparatus 9 of the second Polarization Controller 8, the second output terminal of fiber coupler 4
B connection polarizes the input terminal in relation to saturable absorber 5, polarizes the first polarization of output end connection in relation to saturable absorber 5
The input terminal of controller 6, the output end connection of the first Polarization Controller 6 polarize the input terminal of unrelated isolator 7, polarize it is unrelated every
The transmission end of output end connection optical fibre wavelength division multiplexer 2 from device 7.
The pumping source 1 is using the semiconductor laser of Single-Mode Fiber Coupling, and wavelength is 1480 nm, when pumping source 1
When wavelength is 1480 nm, the operation wavelength of the optical fibre wavelength division multiplexer 2 is 1480/1550 nm.
The Er-doped fiber 3 is using the Er-doped fiber of 1~3 m long as laser gain medium, optical fibre wavelength-division multiplex
Device 2, fiber coupler 4, the first Polarization Controller 6 and the unrelated isolator 7 of polarization operation wavelength be 1550 nm.
The fiber coupler 4 uses 90: 10 fiber coupler.
It is described to polarize related saturable absorber 5 using transmission-type, polarize satisfying for related 5 X-direction of saturable absorber
It is inconsistent with absorption parameter and the saturable absorption parameter of its Y-direction.Optical fiber fast axle H, which corresponds to, polarizes related saturable absorber
X-direction, and optical fiber slow axis V correspond to polarization the Y-direction in relation to saturable absorber.
First Polarization Controller 6 and the second Polarization Controller 8 are all made of the rotary Polarization Controller of three pieces coil.
The polarization beam apparatus 9 is optical-fiber-coupling type.
Method using passive mode-locking vector soliton fiber laser output vector orphan is as follows: defeated by fiber coupler 4
Polarization locking vector orphan or polarization two kinds of light pulses of spin locking vector orphan, the first output end a of fiber coupler 4 are defeated out
10% optical signal passes through the second Polarization Controller 8 and polarization beam apparatus 9 out, and it is orthogonal to export two polarization directions by polarization beam apparatus 9
Light pulse, two light pulses are respectively the first light pulse 10 and the second light pulse 11, and the first light pulse 10 is polarization locking arrow
Orphan H polarized component or polarization spin locking vector orphan H polarized component are measured, the second light pulse 11 is polarization locking vector orphan
V polarized component or polarization spin locking vector orphan V polarized component.
The optical signal of the second output terminal b output 90% of fiber coupler 4,90% optical signal is by polarizing related saturable
Absorber 5, the first Polarization Controller 6 and the unrelated isolator 7 of polarization enter optical fiber wavelength division from the transmission end of optical fibre wavelength division multiplexer 2
Multiplexer 2.
Passive mode-locking vector soliton fiber laser output polarization locking vector orphan H polarized component and polarization locking vector
Orphan V polarized component and polarization spin locking vector orphan H polarized component and polarization spin locking vector orphan V polarized component are
Polarization locking vector orphan or polarization two kinds of optical signals of spin locking vector orphan are exported to realize by fiber coupler 4, are adjusted
The angle θ of the power of whole pumping source 1 and the first Polarization Controller 6 can be realized the conversion of the two.The specific operation method is as follows for it:
A, the output of polarization locking vector orphan polarized component, adjusts the power of pumping source 1, by 1 power adjustment of pumping source
To 120mW, the angle θ of the first Polarization Controller 6 is 0, at this point, the output polarization locking vector orphan optical signal of fiber coupler 4, by
In polarizing the related saturable absorption effect of the polarization in relation to saturable absorber 5, the first output end a of fiber coupler 4 is exported
10% optical signal, optical signal pass through the second Polarization Controller 8 and polarization beam apparatus 9, export two polarizations by polarization beam apparatus 9
The orthogonal light pulse in direction, two light pulses are respectively the first light pulse and the second light pulse, and the first light pulse is polarization locking
Vector orphan's H polarized component, the second light pulse are polarization locking vector orphan V polarized component.
The normalization light intensity of two polarized components of H and V of polarization locking vector orphan is as shown in Fig. 2, and H and V two are partially
The relative light intensity of vibration component is different, is normalized with total light intensity.
The phase of two polarized components of H and V of polarization locking vector orphan is as shown in Fig. 3, along entire pulse section, H
Phase difference with two polarized components of V is pi/2.
The spectrum of two polarized components of H and V of polarization locking vector orphan is as shown in Fig. 4.
The Poincare sphere figure of 100 circle polarization locking vector orphans is as shown in Fig. 5, as can be seen that 100 on Poincare sphere
The polarization state of circle pulse all concentrates on a bit of Poincare sphere, illustrates that the polarization state of these pulses is identical.
B, the output of spin locking vector orphan's polarized component is polarized, the angle θ to π/4 of the first Polarization Controller 6 is adjusted, this
When, fiber coupler defeated 4 goes out to polarize spin locking vector orphan's optical signal, since polarization of the polarization in relation to saturable absorber has
Saturable absorption effect is closed, the optical signal of the first output end a output 10% of fiber coupler 4, optical signal is by the second polarization control
Device 8 and polarization beam apparatus 9 processed export the orthogonal light pulse in two polarization directions by polarization beam apparatus 9, and two light pulses are respectively
First light pulse 10 and the second light pulse 11, the first light pulse 10 are polarization spin locking vector orphan H polarized component, the second light
Pulse 11 is polarization spin locking vector orphan V polarized component.Laser output end record 100 circle output pulses, H and
There is periodic swinging in the peak value of pulse light intensity of two polarized components of V, but total light intensity keeps stablizing.
The optical signal of the second output terminal b output 90% of fiber coupler 4,90% optical signal is by polarizing related saturable
Absorber 5, the first Polarization Controller 6 and the unrelated isolator 7 of polarization enter optical fiber wavelength division from the transmission end of optical fibre wavelength division multiplexer 2
Multiplexer 2.
The light intensity for polarizing the H polarized component of spin locking vector orphan is as shown in Fig. 6.
The light intensity for polarizing the V polarized component of spin locking vector orphan is as shown in Fig. 7.
The total light intensity for polarizing spin locking vector orphan is as shown in Fig. 8.
The Poincare sphere figure of 100 circle polarization spin locking vector orphans is as shown in Fig. 9, sees on Poincare sphere, this
The polarization state of a little pulses is scattered in an annular closed curve on Poincare sphere, and the polarization state presentation of pulse periodically becomes
Change.
100 circle pulses of output are passed through after polarization beam apparatus 9, change with obtaining peak value of pulse light intensity generating period,
The polarization evolution frequency (PEF) of its peak power be 0.11/Tc, wherein Tc be the one week time of light pulse cyclic resonance chamber, 100
Light intensity of the circle polarization locking vector orphan after polarization beam apparatus is as shown in Fig. 10,100 circle polarization locking vector orphan warps
Peak power polarization evolution frequency after crossing polarization beam apparatus is as shown in Fig. 11.
Embodiment two, the present embodiment use the technical solution of embodiment one, what is different from the first embodiment is that the pump
Using the semiconductor laser of Single-Mode Fiber Coupling, wavelength is 980 nm, the work of the optical fibre wavelength division multiplexer 2 in Pu source 1
Wavelength is 980/1550 nm.
Embodiment three, the present embodiment use the technical solution of embodiment one, what is different from the first embodiment is that the polarization
Related saturable absorber 5 uses reflection-type, polarizes saturable absorption parameter and its Y in relation to 5 X-direction of saturable absorber
The saturable absorption parameter in direction is inconsistent.Optical fiber fast axle H, which corresponds to, polarizes the X-direction in relation to saturable absorber, and optical fiber
Slow axis V corresponds to Y-direction of the polarization in relation to saturable absorber.
Example IV, the present embodiment use the technical solution of embodiment three, unlike embodiment three, the pump
Using the semiconductor laser of Single-Mode Fiber Coupling, wavelength is 980 nm, the work of the optical fibre wavelength division multiplexer 2 in Pu source 1
Wavelength is 980/1550 nm.
Claims (3)
1. the method for passive mode-locking vector soliton fiber laser output vector orphan, it is characterized in that: passive mode-locking vector orphan
Optical fiber laser exports stable the first light pulse and the second light pulse, and the first light pulse is respectively to polarize locking vector orphan H
Polarized component or polarization spin locking vector orphan H polarized component, the second light pulse are respectively to polarize locking vector orphan V polarization
Component or polarization spin locking vector orphan V polarized component；
Passive mode-locking vector soliton fiber laser output polarization locking vector orphan H polarized component and polarization locking vector orphan
V polarized component and polarization spin locking vector orphan H polarized component and polarization spin locking vector orphan V polarized component are to pass through
Fiber coupler output polarization locking vector orphan polarizes two kinds of optical signals of spin locking vector orphan to realize, adjusts pumping
The angle θ of the power in source and the first Polarization Controller can be realized the conversion of the two, and the specific operation method is as follows:
A, the output of polarization locking vector orphan polarized component, adjusts the power of pumping source, pumping source power adjustment is arrived
120mW, the angle θ of the first Polarization Controller are 0, at this point, fiber coupler output polarization locking vector orphan optical signal, due to inclined
The related saturable absorption effect of the polarization to shake in relation to saturable absorber, the light of the first output end a output 10% of fiber coupler
Signal, optical signal pass through the second Polarization Controller and polarization beam apparatus, and it is orthogonal to export two polarization directions by polarization beam apparatus
Light pulse, two light pulses are respectively the first light pulse and the second light pulse, and the first light pulse is that polarization locking vector orphan H is inclined
Shake component, and the second light pulse is polarization locking vector orphan V polarized component；
The optical signal of the second output terminal b output 90% of fiber coupler, 90% optical signal is by polarizing related saturable absorption
Body, the first Polarization Controller and the unrelated isolator of polarization enter optical fibre wavelength division multiplexer from the transmission end of optical fibre wavelength division multiplexer；
B, the output of spin locking vector orphan's polarized component is polarized, the angle θ to π/4 of the first Polarization Controller is adjusted, at this point, light
Fine coupler output polarization spin locking vector orphan's optical signal, can satisfy since polarization of the polarization in relation to saturable absorber is related
And absorption, the optical signal of the first output end a output 10% of fiber coupler, optical signal by the second Polarization Controller and
Polarization beam apparatus exports the orthogonal light pulse in two polarization directions by polarization beam apparatus, and two light pulses are respectively the first smooth arteries and veins
Punching and the second light pulse, the first light pulse are polarization spin locking vector orphan H polarized component, and the second light pulse is polarization rotation
Vector orphan V polarized component is locked, records the output pulse of 100 circles in the output end of laser, two polarized components of H and V
There is periodic swinging in peak value of pulse light intensity, but total light intensity keeps stablizing；
The optical signal of the second output terminal b output 90% of fiber coupler, 90% optical signal is by polarizing related saturable absorption
Body, the first Polarization Controller and the unrelated isolator of polarization enter optical fibre wavelength division multiplexer from the transmission end of optical fibre wavelength division multiplexer；
The passive mode-locking vector soliton fiber laser that the above method uses is using two-dimensional material black phosphorus as polarization in relation to that can satisfy
And absorber, there is anisotropic optical characteristics using two-dimensional material black phosphorus and polarize related photoresponse to generate polarization phase
Saturable absorption is closed, and realizes stable vector orphan output；
The passive mode-locking vector soliton fiber laser includes pumping source, optical fibre wavelength division multiplexer, Er-doped fiber, optical fiber coupling
Clutch, the related saturable absorber of polarization, the first Polarization Controller, the unrelated isolator of polarization, the second Polarization Controller and polarization
Beam splitter；
Pumping source connects the reflection end of optical fibre wavelength division multiplexer, the input of the common end connection Er-doped fiber of optical fibre wavelength division multiplexer
End, Er-doped fiber output end connection fiber coupler input terminal, the output end of fiber coupler be divided into the first output end and
Second output terminal, wherein the first output end light intensity accounts for the 10% of fiber coupler total light intensity, second output terminal light intensity accounts for fiber coupling
The 90% of device total light intensity, the first output end of fiber coupler connect the input terminal of the second Polarization Controller, the second Polarization Controller
Output end connection polarization beam apparatus input terminal, the second output terminal connection of fiber coupler polarizes related saturable absorber
Input terminal, polarize the input terminal that output end in relation to saturable absorber connects the first Polarization Controller, the first Polarization Control
The output end connection of device polarizes the input terminal of unrelated isolator, polarizes the output end connection optical fibre wavelength division multiplexer of unrelated isolator
Transmission end.
2. the method for passive mode-locking vector soliton fiber laser output vector orphan as described in claim 1, it is characterized in that:
The pumping source uses the semiconductor laser of Single-Mode Fiber Coupling, and wavelength is 1480 nm or 980 nm, when pumping source
When wavelength is 1480 nm, the operation wavelength of the optical fibre wavelength division multiplexer is 1480/1550 nm；When the wavelength of pumping source
When for 980 nm, the operation wavelength of the optical fibre wavelength division multiplexer is 980/1550 nm.
3. the method for passive mode-locking vector soliton fiber laser output vector orphan as claimed in claim 1 or 2, feature
Be: the Er-doped fiber is using the Er-doped fiber of 1~3 m long as laser gain medium, optical fibre wavelength division multiplexer, optical fiber
The operation wavelength of coupler, the first Polarization Controller and the unrelated isolator of polarization is 1550 nm；
The fiber coupler uses 90: 10 fiber coupler；
The related saturable absorber of the polarization uses transmission-type or reflection-type, and polarize related saturable absorber X-direction can
Saturated absorption parameter and the saturable absorption parameter of its Y-direction are inconsistent, and optical fiber fast axle H, which corresponds to, polarizes related saturable absorption
The X-direction of body, and optical fiber slow axis V corresponds to Y-direction of the polarization in relation to saturable absorber；
First Polarization Controller and the second Polarization Controller are all made of the rotary Polarization Controller of three pieces coil；
The polarization beam apparatus is optical-fiber-coupling type.
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| CN108963737B (en) * | 2018-08-18 | 2021-01-19 | 深圳华中科技大学研究院 | Multi-dimensional multiplexing soliton fiber laser |
| CN109066278B (en) * | 2018-08-22 | 2019-09-06 | 华中科技大学 | The two-way polymorphic soliton fiber laser of mode locking |
| CN108923234B (en) * | 2018-08-29 | 2024-03-08 | 中国人民解放军国防科技大学 | Supercontinuum generating device |
| CN110299666B (en) * | 2019-06-11 | 2020-11-10 | 上海交通大学 | Anthropomorphic method for automatic mode locking under various pulse states |
| CN111884034B (en) * | 2020-08-05 | 2022-05-13 | 武汉法涞智能科技有限公司 | Mode locking fiber laser with adjustable soliton quantity |
| CN112688154B (en) * | 2020-12-25 | 2021-10-26 | 太原理工大学 | Device and method for generating high-quality pulse train based on Peregrine soliton |
| CN114268008B (en) * | 2021-12-23 | 2023-10-17 | 中国地质大学（武汉） | Vector soliton laser |
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| CN104134926A (en) * | 2014-07-02 | 2014-11-05 | 上海大学 | Passive mode-locking Er-doped fiber laser based on gold nanoparticle saturable absorber |
| WO2016145525A1 (en) * | 2015-03-19 | 2016-09-22 | Institut National De La Recherche Scientifique | A method and a system for pulsed excitation of a nonlinear medium for photon pair generation |
| CN105140766A (en) * | 2015-09-16 | 2015-12-09 | 江苏师范大学 | Higher-order group-velocity locked vector soliton laser and generating method |
| CN106129791A (en) * | 2016-09-07 | 2016-11-16 | 电子科技大学 | The Gao Zhongying Harmonic mode-locked fiber laser injected based on outside continuous light |
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