CN209401972U - A kind of 2 μm of dissipative solitons resonance mode locked fiber laser - Google Patents
A kind of 2 μm of dissipative solitons resonance mode locked fiber laser Download PDFInfo
- Publication number
- CN209401972U CN209401972U CN201822119832.1U CN201822119832U CN209401972U CN 209401972 U CN209401972 U CN 209401972U CN 201822119832 U CN201822119832 U CN 201822119832U CN 209401972 U CN209401972 U CN 209401972U
- Authority
- CN
- China
- Prior art keywords
- fiber
- division multiplexer
- wavelength division
- wavelength
- laser
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Abstract
The utility model provides a kind of 2 μm of dissipative solitons resonance mode locked fiber laser, including pumping source and the optic fiber ring-shaped cavity connected by wavelength division multiplexer, thulium doped fiber, optoisolator, fiber coupler, filter and nonlinear fiber Perimeter Truss Reflector with single mode optical fiber；Wherein nonlinear fiber Perimeter Truss Reflector is that two output ports of a fiber coupler are compensated photonic crystal fiber by fluoride (ZBLAN) ultraflattened dispersion to be interconnected together.The beneficial effects of the utility model are: the utility model optical fiber laser uses all optical fibre structure, beam quality is high, condensed convenient for welding, easy to maintain；The optical fiber laser of the utility model can realize 2 μm of dissipative solitons resonant impulses of output by adjusting the characteristic of pump light and intracavitary different parameters.
Description
Technical field
The utility model relates to laser technology fields, more particularly to a kind of 2 μm of dissipative solitons resonance mode locked fiber laser.
Background technique
In recent years, due to the extensive use in spectroscopy, laser radar, material processing and other fields, 2 μm of lasers are received
Extensive concern.Since thulium doped fiber can be used as gain media people in this field to such as high power, mode locking, Q
Switch, tunable wave length, super various 2 μm of optical fiber lasers such as continuous have carried out comprehensive research.More specifically, due to mixing thulium
Optical fiber has biggish gain ranging, and in terms of the following high data rate and high capacity fiber optic communication, 2 mu m wavebands also have very
Big potentiality.
Due to ultra-short pulse source optic communication, optical sensing, nonlinear optics, industry and in terms of extensively answer
With passive mode-locking technology has excited the dense research interest of people as ultra-short pulse source.In general, we utilize
SESAM, NPR, NOLM, NALM obtain passive mode-locking pulse in optical fiber laser.Since passive mode-locking pulse possesses peak value
Power, so passive mode-locking fiber laser is considered as the strong platform for observing mode locking pulse nonlinear kinetics.Therefore, I
To by design laser cavity structure and selecting intracavitary parameter that research non-linear phenomena is gone to have very big interest.Currently,
In optical fiber laser, different Soliton dynamics and forming process have been observed, such as: traditional orphan, noise like orphan, arrow
Measure orphan, similarity pulse evolution, bound state orphan, dissipative solitons etc..However, above-mentioned various orphans have a common spy
Property, due to high non-linearity effect, with the raising of pulse energy multiple-pulse phenomenon can occur for these orphans.People are micro- by large mode field
Structure gain fibre is used as the solution for reducing high non-linearity effect in optical fiber laser, and is used to obtain high-energy arteries and veins
Punching.But single-mode field fiber is difficult directly to be welded together with conventional single mode fiber, this makes optical fiber laser not be all -fiber
Structure.In order to obtain higher pulse energy, the pulse mode-locked mechanism for being able to achieve no wavefront splitting undoubtedly has huge potentiality.Cause
This must without new orphan's operating mechanism of pulse separating phenomenon from high energy pulse and all -fiber Resonator design is realized
It must exploitation.
Recently, in order to obtain the pulse that high-energy is divided without pulse from optical fiber laser, by complicated gold
Parameter in Wuerzburg-landau equation frame is suitably chosen, and a kind of orphan of new concept for being called dissipative solitons resonance is produced.Consumption
The characteristics of dissipating orphan's covibration is no pulse division, when pulse width and energy increase with the increase of pumping,
The amplitude preservation of pulse is constant, this shows that in the pulse of dissipative solitons resonance zone be rectangle.With dissipative solitons resonance
Theoretically its pulse energy can be infinity for ultrashort pulse.Therefore it is able to achieve the modelocked fiber of dissipative solitons resonant impulse output
Laser has very big application and researching value.
Summary of the invention
In order to overcome the division of pulse caused by nonlinear effect to limit the pulse energy that optical fiber mode locked laser exports, this
Utility model provides a kind of 2 μm of dissipative solitons resonance mode locked fiber laser, it can be achieved that the consumption divided in 2 μm of output no pulses
Dissipate orphan's resonant impulse.Beam quality is high, couples convenient for welding, easy to maintain.
A kind of 2 μm of dissipative solitons resonance mode locked fiber laser, comprising: pumping source (1) and optic fiber ring-shaped cavity；
Pumping source (1) generates the pumping light pulse of 793nm wavelength by optical excitation；
Optic fiber ring-shaped cavity, comprising: the first wavelength division multiplexer (2), thulium doped fiber (3), the second wavelength division multiplexer (4), light every
From device (5), the first fiber coupler (6), nonlinear fiber Perimeter Truss Reflector and filter (9)；Wherein, nonlinear fiber annular
Reflecting mirror includes: the second fiber coupler (7) and fluoride ultraflattened dispersion compensation photonic crystal fiber (8), the second optical fiber coupling
The first output port (7c) and second output terminal mouth (7d) of clutch (7) compensate photonic crystal light by fluoride ultraflattened dispersion
Fine (8) connection；
The pumping source (1) is connect with the pump ports (2a) of the first wavelength division multiplexer (2), the first wavelength division multiplexer
(2) public port (2c) successively through thulium doped fiber (3), the second wavelength division multiplexer (4), optoisolator (5), be connected to the first light
The energy input port (6a) of fine coupler (6), it is non-thread that the energy output port (6b) of the first fiber coupler is connected to optical fiber
The input port (7a) of property Perimeter Truss Reflector, the reflector port (7b) of reflecting mirror are connected to the first wavelength-division multiplex through filter (9)
The signal port (2b) of device；It is connected between each component by single mode positive dispersion fiber (10), stable dissipative solitons resonant impulse
It is exported from 50% energy output port (6c) of the first fiber coupler (6)；
793nm wavelength pumping light pulse signal flow sequentially are as follows: the first wavelength division multiplexer (2), thulium doped fiber (3),
Second wavelength division multiplexer (4) is then flowed out from the output port (4d) of the second wavelength division multiplexer (4)；
The pumping light pulse of 793nm wavelength is in the light by generating 2 mum wavelengths when thulium doped fiber (3)；
The flow direction of the light pulse of 2 mum wavelengths is sequentially are as follows: thulium doped fiber (3), the second wavelength division multiplexer (4), optoisolator
(5), the first fiber coupler (6), properties in nonlinear optical loop mirror, filter (9), the first wavelength division multiplexer (2), then flow back to and mix
Thulium optical fiber (3).
Further, the pumping source (1) is the semiconductor laser of Single-Mode Fiber Coupling, wherein a length of 793nm of cardiac wave,
Pump absorption peak corresponding to thulium doped fiber (3).
Further, the operation wavelength of first wavelength division multiplexer (2) and the second wavelength division multiplexer (4) is respectively
The tail optical fiber type of 793nm and 2000nm, first wavelength division multiplexer (2) and the second wavelength division multiplexer (4) is single mode countenance
Astigmatism is fine.
Further, thulium doped fiber (3) length is 60cm.
Further, the fibre optic isolater uses central wavelength for the isolator unrelated with polarization of 2000nm, described
The tail optical fiber type of fibre optic isolater is single mode positive dispersion fiber.
Further, the optoisolator (5) uses central wavelength for the isolator unrelated with polarization of 2000nm, described
The tail optical fiber type of optoisolator is single mode positive dispersion fiber.
Further, first fiber coupler (6) uses 50:50 fiber coupler, the tail of the fiber coupler
Fine type is single mode positive dispersion fiber.
Further, second fiber coupler (7) uses 20:80 fiber coupler, the tail of the fiber coupler
Fine type is single mode positive dispersion fiber.
Further, fluoride ultraflattened dispersion compensation photonic crystal fiber (8) length is 3m, and fibre core and covering are equal
It is made, has in base material disposed in parallel more along shaft axis of optic fibre of base material ZrF4-BaF2-LaF3-AlF3-NaF
A airport；The circle area encompassed formed between the hole heart of innermost layer airport is fibre core, remaining base material and all
Airport constitutes covering.
Further, on the arbitrary cross section of fluoride ultraflattened dispersion compensation photonic crystal fiber (8), Duo Gekong
Stomata is in Multi-layers distributing along the axle center of optical fiber, and there is a round airport in axle center, remaining every layer airport is respectively formed positive six
Side shape；The distance between the hole heart of the adjacent airport of any two is P=1.5 μm, and the diameter a of axle center airport is 0.42 μ
M, the diameter d1 of innermost layer airport are 0.7 μm, and the diameter d in remaining air hole is 1 μm；The air of sub-wavelength dimensions at center
Under the action of hole and covering airport, it can greatly change the dispersion characteristics of optical fiber.
Further, the filter (9) is the bandpass filter that bandwidth is 9nm.
Technical solution provided by the utility model has the benefit that 1, the utility model optical fiber laser using complete
Optical fiber structure, beam quality is high, couples convenient for welding, easy to maintain；2. the utility model utilizes the light with big normal dispersion
Photonic crystal fiber constructs properties in nonlinear optical loop mirror and realizes that saturable absorption body function is used for mode locking, while introducing in laser cavity
Strong pulse peak power clamping effect improves pulse energy；3, the optical fiber laser of the utility model can be pumped by adjusting
The characteristic of light and intracavitary different parameters exports 2 μm of stable rectangular dissipative solitons resonant impulses to realize, pulse is with pumping
Power increase will not divide, and the energy of pulse is only limited by pump power.
Detailed description of the invention
Below in conjunction with accompanying drawings and embodiments, the utility model is described in further detail, in attached drawing:
Fig. 1 is a kind of structural schematic diagram of 2 μm of dissipative solitons resonance mode locked fiber laser in the utility model embodiment；
Fig. 2 is the structure of (ZBLAN) ultraflattened dispersion of fluoride in the utility model embodiment compensation photonic crystal fiber
Schematic diagram；
Fig. 3 is the dispersion of (ZBLAN) ultraflattened dispersion of fluoride in the utility model embodiment compensation photonic crystal fiber
In 2 mu m wavebands with wavelength change curve graph；
Fig. 4 be in the utility model embodiment under different gain saturation energies 2 μm of dissipative solitons resonance modelocked fiber
The dissipative solitons resonance pulse time-domain diagram of laser output；
Fig. 5 be in the utility model embodiment under different gain saturation energies 2 μm of dissipative solitons resonance modelocked fiber
The dissipative solitons resonant impulse spectrogram of laser output.
Specific embodiment
For a clearer understanding of the technical features, objectives and effects of the utility model, now control attached drawing is detailed
Illustrate specific embodiment of the present utility model.
The embodiments of the present invention provide a kind of 2 μm of dissipative solitons resonance mode locked fiber laser.
Referring to FIG. 1, Fig. 1 is a kind of 2 μm of dissipative solitons resonance mode locked fiber laser in the utility model embodiment
Flow chart specifically includes pumping source and optic fiber ring-shaped cavity；
Pumping source (1) generates the pumping light pulse of 793nm wavelength by optical excitation；
Optic fiber ring-shaped cavity, comprising: the first wavelength division multiplexer 2, thulium doped fiber 3, the second wavelength division multiplexer 4, optoisolator 5,
First fiber coupler 6, the second fiber coupler 7, nonlinear fiber Perimeter Truss Reflector and filter 9；Wherein, nonlinear fiber
Perimeter Truss Reflector includes: the second fiber coupler 7 and fluoride ultraflattened dispersion compensation photonic crystal fiber 8, the second optical fiber coupling
The the first output port 7c and second output terminal mouth 7d of clutch 7 compensate photonic crystal fiber 8 by fluoride ultraflattened dispersion and connect
It connects；
The public port 2c of the pump ports 2a connection pumping source 1 of first wavelength division multiplexer 2, the first wavelength division multiplexer 2 is logical
It crosses after thulium doped fiber 3 and connects the input port 4a of the second wavelength division multiplexer 4, the output port 4b connection of the second wavelength division multiplexer 4
The input port of fibre optic isolater 5, the output port of fibre optic isolater 5 connect the input port 6a of the first fiber coupler 6, the
The input port 7a of the second fiber coupler of output port 6b connection 7 of one fiber coupler 6, the of the second fiber coupler 7
One output port 7c and second output terminal mouth 7d compensates photonic crystal fiber 8 by fluoride (ZBLAN) ultraflattened dispersion and connects,
The output port of the input port of the reflector port 7b connection filter 9 of second fiber coupler 7, filter 9 is passing through single mode just
Dispersive optical fiber 10 connects the signal port 2b of the first wavelength division multiplexer 2；
It is connected between each component by single mode positive dispersion fiber, stable dissipative solitons resonant impulse is from the first fiber coupling
50% energy output port 6c of device 6 is exported；
Wherein, the pumping source 1 is the semiconductor laser of Single-Mode Fiber Coupling, and wherein a length of 793nm of cardiac wave, corresponds to
The pump absorption peak of thulium doped fiber 3.
The operation wavelength of first wavelength division multiplexer and the second wavelength division multiplexer is 793nm and 2000nm respectively, described
The tail optical fiber type of first wavelength division multiplexer and the second wavelength division multiplexer is single mode positive dispersion fiber.
The thulium doped fiber length is 60cm.
The fibre optic isolater uses central wavelength for the isolator unrelated with polarization of 2000nm, the fibre optic isolater
Tail optical fiber type be single mode positive dispersion fiber.
First fiber coupler 6 uses 50:50 fiber coupler, and the tail optical fiber type of the fiber coupler is single mode
Positive dispersion fiber.Second fiber coupler 7 uses 50:50 fiber coupler, and the tail optical fiber type of the fiber coupler is
Single mode positive dispersion fiber.
Fluoride ultraflattened dispersion compensation 8 length of photonic crystal fiber is 3m, and fibre core and covering are by base material
ZrF4-BaF2-LaF3-AlF3-NaF is made, and has in base material along shaft axis of optic fibre multiple airports disposed in parallel；Most
The circle area encompassed formed between the hole heart in inner air hole is fibre core, remaining base material and all airports constitute packet
Layer；On the arbitrary cross section of optical fiber, above-mentioned multiple airports are in Multi-layers distributing along the axle center of optical fiber, and there is a circle in axle center
Airport, remaining every layer airport are respectively formed regular hexagon；The distance between the hole heart of the adjacent airport of any two is P
=1.5 μm, the diameter a of axle center airport is 0.42 μm, and the diameter d1 of innermost layer airport is 0.7 μm, remaining air hole
Diameter d is 1 μm；The airport of sub-wavelength dimensions and under the action of covering airport at center, can greatly change optical fiber
Dispersion characteristics.
The filter 9 is the bandpass filter that bandwidth is 9nm.
A kind of connection relationship of each section of 2 μm of dissipative solitons resonance mode locked fiber laser is also by the flow direction of following signals
It is limited:
The signal flow of the pumping light pulse of 793nm wavelength is sequentially are as follows: the first wavelength division multiplexer 2, thulium doped fiber 3, second
Then wavelength division multiplexer 4 is flowed out from the output port 4d of the second wavelength division multiplexer 4；
The pumping light pulse of 793nm wavelength is in the light by generating 2 mum wavelengths when thulium doped fiber 3；
The signal flow of the light of 2 mum wavelengths is successively are as follows: thulium doped fiber 3, the second wavelength division multiplexer 4, optoisolator 5, output
Coupler 6, properties in nonlinear optical loop mirror, filter 9, the first wavelength division multiplexer 2, then flow back to thulium doped fiber 3.
In order to accelerate the convergence calculated, develop since initial 10ps is without chirped pulse, which has without chirped pulse
There is 100aJ pulse energy, pulse peak power of the 10ps without chirped pulse is 9.4 μ W；Initial 10ps is without chirped pulse
The central wavelength of pulse frequency spectrum is 2 μm.
Pumping source 1 is the semiconductor laser of Single-Mode Fiber Coupling, wherein a length of 793nm of cardiac wave, corresponds to thulium doped fiber
Pump absorption peak；First wavelength division multiplexer 2 enters the laser coupled of 793nm in thulium doped fiber 3, the pump light of 793nm wavelength
Pulse generates the laser of 2 mum wavelengths when by thulium doped fiber 3, and the pumping light pulse of 793nm wavelength is from the second wavelength division multiplexer 4
Second output terminal mouth 4d outflow；The effect of optoisolator is to guarantee laser along the unidirectional of direction shown in arrow in optoisolator
Transmission, and the laser of reverse transfer is isolated, the splitting ratio of the first fiber coupler 6 is 50:50, the work of the first fiber coupler 6
With being the laser for exporting the transmission of optoisolator 5 and coming, 50% 2 μm of laser are from energy output port 6c output, other the 2 of 50% μm
Laser then continues to be propagated fiber annular is intracavitary, constantly to the last obtains 2 μm of stable dissipation in intracavitary vibrated
Orphan's resonant impulse is exported from the energy output port 6c of the first fiber coupler 6；Second fiber coupler splitting ratio is 20:
80,20% 2 μm of laser compensate photonic crystal light clockwise through fluoride ultraflattened dispersion in non-linear Perimeter Truss Reflector
Fibre 8,80% 2 μm of laser compensate photonic crystal light by fluoride ultraflattened dispersion counterclockwise in non-linear Perimeter Truss Reflector
Fibre 8 is exported from the reflector port (7b) of reflecting mirror, and non-linear Perimeter Truss Reflector here functions as the effect of mode locking.
In operating process, thulium doped fiber 3 can provide biggish gain as gain media, when the first fiber coupler 6
Resonance interacvity gain be greater than loss when, can by oscillation constantly light pulse is amplified, with electrode compensation.Fluoride
(ZBLAN) effect of ultraflattened dispersion compensation photonic crystal fiber 8 is the dispersion adjusted in resonant cavity.
Referring to FIG. 2, fluoride (ZBLAN) ultraflattened dispersion compensation 8 length of photonic crystal fiber is 3m, it can be achieved that dispersion
It is being maintained in 1.75 μm to 2.35 μ m wavelength ranges between -72.4psnm-1km-1 to -73.15psnm-1km-1.Tool
It is the fibre core made of base material ZrF4-BaF2-LaF3-AlF3-NaF and covering, has in base material along light
Fine axis multiple airports disposed in parallel；On the arbitrary cross section of optical fiber: above-mentioned multiple airports along optical fiber axle center
At Multi-layers distributing, there is a round airport in axle center, remaining every layer airport is respectively formed regular hexagon.Any two adjacent vacant
The distance between hole heart of stomata is P=1.5 μm, and the diameter a of axle center airport is 0.42 μm, the diameter of innermost layer airport
D1 is 0.7 μm, and the diameter d in remaining air hole is 1 μm.The circle area encompassed formed between the hole heart of innermost layer airport
For fibre core, remaining base material and all airports constitute covering.The airport of sub-wavelength dimensions and covering airport at center
Under the action of, it can greatly change the dispersion characteristics of optical fiber.It please refers to Fig. 3 with wavelength change curve graph in 2 mu m wavebands.
Single mode positive dispersion fiber 10, thulium doped fiber 3, the fluoride (ZBLAN) of the utility model embodiment use are super flat
The length of dispersion compensating photonic crystal fibers 8 is respectively: 1 meter, 0.7 meter, 3 meters.Single mode positive dispersion fiber 10, thulium doped fiber 3 with
And nonlinear factor corresponding to fluoride (ZBLAN) ultraflattened dispersion compensation photonic crystal fiber 8 is respectively: 1W-1km-1、3W-1km-1And 7.6W-1km-1.2 μm of laser is entered in non-linear Perimeter Truss Reflector by the second fiber coupler is divided into function
The different two-beam of rate, respectively along propagation clockwise and counterclockwise.
Communication process of the light pulse in thulium doped fiber 3 is stated with following golden hereby landau equations:
Wherein, A indicates that the slow change amplitude of light pulse envelope, z indicate the propagation distance of pulse in optical fiber, β2Indicate second order color
Coefficient is dissipated, γ indicates nonlinear factor, T2Indicate relaxation time, T2=1/ Δ ω, wherein Δ ω is the gain band of thulium doped fiber
Width, the π c Δ of Δ ω=2 λ/λ2, c is the light velocity in vacuum, and Δ λ is the big overall with wavelength bandwidth of half-shadow, and λ is central wavelength, and α is light
Fibre loss, g0It is the saturated absorption coefficient of gain fibre.
The variation of gain saturation energy is equivalent to change pump power, in different gain saturation energy EsatLower 2 μm of dissipation
The dissipative solitons resonance pulse time-domain diagram of orphan's resonance mode locked fiber laser output is referring to FIG. 4, when being continuously increased gain
When saturation energy, pulse width increases, while amplitude preservation is constant, and pulse top becomes more and more flat, introducing from phase
Mudulation effect is smaller and smaller, this is the characteristic feature of dissipative solitons resonance.
The dissipative solitons resonance of 2 μm of dissipative solitons resonance mode locked fiber laser output under different gain saturation energies
Pulsed light spectrogram is referring to FIG. 5, when being continuously increased gain saturation energy EsatWhen, most of energy concentrate near central wavelength,
The bandwidth of dissipative solitons resonance spectrum is more and more narrow.
The mode locked fiber laser the beneficial effects of the utility model are: 2 μm of dissipative solitons provided by the utility model resonate
Using all optical fibre structure, beam quality is high, couples convenient for welding, easy to maintain；And laser uses 3 meters or longer fiber optic loop
The saturable absorption mechanism of shape mirror realizes that mode locking, longer annular mirror introduce strong pulse peak power in laser cavity and clamp down on
Effect；Optical fiber laser can export 2 μm of stable sides by adjusting the characteristic of pump light and intracavitary different parameters to realize
Shape dissipative solitons resonant impulse, pulse will not be divided with pump power increase, and the energy of pulse is only limited by pump power
System.
The above is only the preferred embodiment of the present invention, is not intended to limit the utility model, all practical at this
Within novel spirit and principle, any modification, equivalent replacement, improvement and so on should be included in the guarantor of the utility model
Within the scope of shield.
Claims (10)
- The mode locked fiber laser 1. a kind of 2 μm of dissipative solitons resonate, it is characterised in that: include: pumping source (1) and fiber annular Chamber；Pumping source (1) generates the pumping light pulse of 793nm wavelength by optical excitation；Optic fiber ring-shaped cavity, comprising: the first wavelength division multiplexer (2), thulium doped fiber (3), the second wavelength division multiplexer (4), optoisolator (5), the first fiber coupler (6), nonlinear fiber Perimeter Truss Reflector and filter (9)；Wherein, nonlinear fiber annular reflection Mirror includes: the second fiber coupler (7) and fluoride ultraflattened dispersion compensation photonic crystal fiber (8), the second fiber coupler (7) the first output port (7c) and second output terminal mouth (7d) compensates photonic crystal fiber by fluoride ultraflattened dispersion (8) it connects；The pumping source (1) is connect with the pump ports (2a) of the first wavelength division multiplexer (2), the first wavelength division multiplexer (2) Public port (2c) successively through thulium doped fiber (3), the second wavelength division multiplexer (4), optoisolator (5), be connected to the first optical fiber coupling The energy output port (6b) of the energy input port (6a) of clutch (6), the first fiber coupler is connected to nonlinear fiber ring The reflector port (7b) of the input port (7a) of shape reflecting mirror, reflecting mirror is connected to the first wavelength division multiplexer through filter (9) Signal port (2b)；Between each component by single mode positive dispersion fiber (10) connect, 2 μm of stable dissipative solitons resonant impulses from 50% energy output port (6c) of the first fiber coupler (6) exports；The signal flow of the pumping light pulse of 793nm wavelength is sequentially are as follows: the first wavelength division multiplexer (2), thulium doped fiber (3), second Wavelength division multiplexer (4) is then flowed out from the output port (4d) of the second wavelength division multiplexer (4)；The pumping light pulse of 793nm wavelength is in the light by generating 2 mum wavelengths when thulium doped fiber (3)；The flow direction of the light pulse of 2 mum wavelengths is sequentially are as follows: thulium doped fiber (3), the second wavelength division multiplexer (4), optoisolator (5), One fiber coupler (6), properties in nonlinear optical loop mirror, filter (9), the first wavelength division multiplexer (2), then flow back to thulium doped fiber (3)。
- The mode locked fiber laser 2. a kind of 2 μm of dissipative solitons as described in claim 1 resonate, it is characterised in that: the pumping Source (1) is the semiconductor laser of Single-Mode Fiber Coupling, wherein a length of 793nm of cardiac wave, and the pumping for corresponding to thulium doped fiber (3) is inhaled Receive peak.
- The mode locked fiber laser 3. a kind of 2 μm of dissipative solitons as described in claim 1 resonate, it is characterised in that: described first The operation wavelength of wavelength division multiplexer (2) and the second wavelength division multiplexer (4) is 793nm and 2000nm respectively, and first wavelength-division is multiple Tail optical fiber type with device (2) and the second wavelength division multiplexer (4) is single mode positive dispersion fiber.
- The mode locked fiber laser 4. a kind of 2 μm of dissipative solitons as described in claim 1 resonate, it is characterised in that: described to mix thulium Optical fiber (3) length is 60cm.
- The mode locked fiber lasers 5. 2 μm of dissipative solitons as described in claim 1 a kind of resonate, it is characterised in that: the light every Use central wavelength for the isolator unrelated with polarization of 2000nm from device (5), the tail optical fiber type of the optoisolator is single mode Positive dispersion fiber.
- The mode locked fiber laser 6. a kind of 2 μm of dissipative solitons as described in claim 1 resonate, it is characterised in that: described first Fiber coupler (6) uses 50:50 fiber coupler, and the tail optical fiber type of the fiber coupler is single mode positive dispersion fiber.
- The mode locked fiber laser 7. a kind of 2 μm of dissipative solitons as described in claim 1 resonate, it is characterised in that: described second Fiber coupler (7) uses 20:80 fiber coupler, and the tail optical fiber type of the fiber coupler is single mode positive dispersion fiber.
- The mode locked fiber laser 8. a kind of 2 μm of dissipative solitons as described in claim 1 resonate, it is characterised in that: the fluorination It is 3m, fibre core and covering by base material ZrF4-BaF2-LaF3- that object ultraflattened dispersion, which compensates photonic crystal fiber (8) length, AlF3-NaF is made, and has in base material along shaft axis of optic fibre multiple airports disposed in parallel；The hole of innermost layer airport The circle area encompassed formed between the heart is fibre core, remaining base material and all airports constitute covering.
- The mode locked fiber laser 9. a kind of 2 μm of dissipative solitons as claimed in claim 8 resonate, it is characterised in that: the fluorination Object ultraflattened dispersion compensates on the arbitrary cross section of photonic crystal fiber (8), and multiple airports are in multilayer along the axle center of optical fiber There is a round airport in distribution, axle center, remaining every layer airport is respectively formed regular hexagon；The adjacent airport of any two The distance between hole heart is P=1.5 μm, and the diameter a of axle center airport is 0.42 μm, and the diameter d1 of innermost layer airport is 0.7 μm, the diameter d in remaining air hole is 1 μm；The airport of sub-wavelength dimensions and under the action of covering airport at center, can Greatly to change the dispersion characteristics of optical fiber.
- The mode locked fiber laser 10. a kind of 2 μm of dissipative solitons as described in claim 1 resonate, it is characterised in that: the filtering Device (9) is the bandpass filter that bandwidth is 9nm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822119832.1U CN209401972U (en) | 2018-12-14 | 2018-12-14 | A kind of 2 μm of dissipative solitons resonance mode locked fiber laser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822119832.1U CN209401972U (en) | 2018-12-14 | 2018-12-14 | A kind of 2 μm of dissipative solitons resonance mode locked fiber laser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209401972U true CN209401972U (en) | 2019-09-17 |
Family
ID=67895146
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822119832.1U Expired - Fee Related CN209401972U (en) | 2018-12-14 | 2018-12-14 | A kind of 2 μm of dissipative solitons resonance mode locked fiber laser |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209401972U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110649452A (en) * | 2019-09-27 | 2020-01-03 | 北京航空航天大学 | High-power wavelength-adjustable all-fiber nanosecond pulse laser and system |
-
2018
- 2018-12-14 CN CN201822119832.1U patent/CN209401972U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110649452A (en) * | 2019-09-27 | 2020-01-03 | 北京航空航天大学 | High-power wavelength-adjustable all-fiber nanosecond pulse laser and system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4635263A (en) | Soliton laser | |
| CN107069410B (en) | A kind of multipurpose bidirectional passive mode-locking full optical fiber laser system | |
| CN108512020B (en) | Incoherent super-continuum spectrum light source with controllable spectrum and tunable output power | |
| CN206850211U (en) | One kind is based on 1 micron of all -fiber ultrashort pulse laser caused by dispersive wave | |
| CN105470791B (en) | Space structure optical fiber laser based on two-dimension nano materials mode locking | |
| CN108390248A (en) | A kind of dual wavelength and tunable wave length passive mode-locking fiber laser | |
| CN107302179B (en) | A kind of sub- hundred femtosecond ultra-short pulse generation devices of compact-sized all -fiber | |
| CN108767637A (en) | THz high repetition frequency high power femto second optical fiber lasers based on dispersive wave | |
| CN106099631A (en) | A kind of all-fiber dissipative solitons resonance mode-locked laser | |
| CN109361140A (en) | A kind of 2 μm of dissipative solitons resonance mode locked fiber laser | |
| CN101881919A (en) | Optical fiber chirped pulse amplifier for ultra-short laser pulse output | |
| CN209401972U (en) | A kind of 2 μm of dissipative solitons resonance mode locked fiber laser | |
| CN103972776B (en) | Laser diode-pumped kerr lens mode locking Yb:(YLa)2o3all solid state femto-second laser | |
| CN107732639A (en) | A kind of adjustable mode locked fiber laser and pulse laser production method | |
| WO2023179747A1 (en) | Ultra-short resonant cavity high repetition frequency fiber laser with adjustable repetition frequency | |
| CN207530301U (en) | Active Mode-locked Fiber Laser based on Group-velocity Matching photonic crystal fiber | |
| CN108923234B (en) | Supercontinuum generating device | |
| CN103872558B (en) | All-fiber double-wavelength mid-infrared laser | |
| CN108110599B (en) | Optical soliton generating device with wave band of 2 mu m | |
| CN206558873U (en) | A kind of ultra wide band random fiber laser based on multi wavelength pumping | |
| CN110165538A (en) | A kind of generation system of high energy dissipation orphan resonance rectangle pulse | |
| CN107800034A (en) | A kind of dissipative solitons mode locked fiber laser using optical fiber integrated device | |
| CN113937605A (en) | Multi-parameter tunable femtosecond pulse laser | |
| Lauterio-Cruz et al. | Numerical study of supercontinuum generation using noise-like pulses in standard fibre | |
| CN109326946B (en) | Dark pulse excitation assembly and dark pulse fiber laser based on black phosphorus |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190917 Termination date: 20211214 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |