CN106207722A - Dissipative solitons based on dispersion compensating fiber and orphan's dual laser - Google Patents
Dissipative solitons based on dispersion compensating fiber and orphan's dual laser Download PDFInfo
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- CN106207722A CN106207722A CN201610724855.8A CN201610724855A CN106207722A CN 106207722 A CN106207722 A CN 106207722A CN 201610724855 A CN201610724855 A CN 201610724855A CN 106207722 A CN106207722 A CN 106207722A
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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
- H01S3/06708—Constructional details of the fibre, e.g. compositions, cross-section, shape or tapering
- H01S3/06725—Fibre characterized by a specific dispersion, e.g. for pulse shaping in soliton lasers or for dispersion compensating [DCF]
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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
- H01S3/06791—Fibre ring lasers
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/09—Processes or apparatus for excitation, e.g. pumping
- H01S3/091—Processes or apparatus for excitation, e.g. pumping using optical pumping
- H01S3/094—Processes or apparatus for excitation, e.g. pumping using optical pumping by coherent light
- H01S3/094042—Processes or apparatus for excitation, e.g. pumping using optical pumping by coherent light of a fibre laser
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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
- H01S3/09—Processes or apparatus for excitation, e.g. pumping
- H01S3/091—Processes or apparatus for excitation, e.g. pumping using optical pumping
- H01S3/094—Processes or apparatus for excitation, e.g. pumping using optical pumping by coherent light
- H01S3/0941—Processes or apparatus for excitation, e.g. pumping using optical pumping by coherent light of a laser diode
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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
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- Optical Modulation, Optical Deflection, Nonlinear Optics, Optical Demodulation, Optical Logic Elements (AREA)
Abstract
The invention discloses a kind of dissipative solitons based on dispersion compensating fiber and orphan's dual laser, including laser diode, bundling device, gain fibre, coupling elements, the unrelated isolator of polarization, polarization maintaining optical fibre, CNT, also include dispersion compensating fiber, the polarizer, the first Polarization Controller and the second Polarization Controller；The unrelated isolator of bundling device, gain fibre, coupling elements, polarization, dispersion compensating fiber, polarization maintaining optical fibre, CNT, the first Polarization Controller, the polarizer and described second Polarization Controller are linked in sequence by optical fiber and constitute full optical fiber ring-type chamber, and laser diode is connected the pump light source as laser instrument with bundling device.The present invention is capable of 2 mu m waveband tradition orphans and the output of dissipative solitons dual-wavelength laser, and structure is simpler, and cost is lower, it is possible to realize twin wavelength laser output patten transformation simply, easily.
Description
Technical field
The present invention relates to a kind of dual laser, belong to optical fiber laser field, a kind of base
Dissipative solitons and orphan's dual laser in dispersion compensating fiber.
Background technology
Ultra-short pulse laser is at fiber optic communication, biotechnology, medical treatment, laser spectroscopy, hyperfine processing, time resolution light
The fields such as spectroscopy have a wide range of applications.Mode-locking technique is a kind of common method obtaining ultrashort light pulse.Therefore, output is flown
The research of the mode locked fiber laser of pulse per second (PPS) becomes a focus of laser technology field research in recent years.In general, root
According to the difference of locked mode mode, mode locked fiber laser can be divided into two big classes: a class is Active Mode-locked Fiber Laser, its chamber
Inside must be inserted into microwave signal drive intensity modulator or phase-modulator, it is provided that Modulation and Amplitude Modulation necessary to active mode locking or
Phase-modulation.Another kind of is passive mode-locking fiber laser, and this kind of optical fiber laser uses the structure of all optical fiber cavity, intracavity
Except gain media, it is not required to manipulator and other active device.Passive mode-locking fiber laser has obtained fast in recent years
Hail exhibition, have a wide range of applications in terms of psec and femtosecond magnitude light source.
Passive mode-locking is the very important approach obtaining ultrashort pulse, and its ultimate principle is to utilize intracavity non-thread
The light transmission rate of the property device dependency to input pulse light intensity so that pulse is constantly narrowed when cavity circulation.Compare
In active mode locking, the simple in construction of passive mode-locking fiber laser, compact, it is possible to the ultrashort pulse of output femtosecond magnitude, it is not required to
Wanting extra modulation device i.e. can realize locked mode, and mode locking pulse pulsewidth is narrower, pulse energy is higher, is to obtain light at present
The ideal platform of soliton pulse.Additionally, the soliton pulse of passive mode-locking fiber laser output has the feature of some uniquenesses, than
Such as phenomenons such as spectral sidebands, pumping sluggishness, the output of pulse energy quantization, multiple-pulse and passive harmonic mode lockings.At present, utilize very
The mode-locking technique of real saturable absorber and based on nonlinear optical annular mirror (NOLM), non-linear amplification annular mirror (NALM) and
The artificial saturable absorber locked mode of nonlinear polarization rotation effect (Nonlinear polarization rotation, NPR)
Technology is two ways the most frequently used in passive mode-locking fiber laser.
In optical fiber laser, laser pulse is different at the Forming Mechanism of different dispersion areas.It is anti-in intracavity net dispersion
In the optical fiber laser of often dispersion, the interaction between the nonlinear effect of optical fiber and Semi-classical theory will produce traditional
Soliton pulse.And when optical fiber laser intracavity net dispersion is timing, normal dispersion effect and nonlinear effect, interacvity gain and damage
The comprehensive function of consumption can produce dissipative solitons pulse.Dissipative solitons has bigger in high energy pulse and high power laser light technology
Using value, the single pulse energy of dissipative solitons does not divides up to decades of times even hundreds times and the preservation pulse of tradition orphan,
It it is one of the developing direction of high power pulsed laser.Particularly, it is possible to produce tradition orphan and the double wave of dissipative solitons simultaneously
Long optical fibers laser instrument has bigger Practical significance, i.e. can produce tradition soliton pulse and can also produce and have higher-energy
Dissipative solitons pulse.In mechanism of laser is studied, dissipative solitons also has the highest learning value.In order to set up dissipative solitons pulse
The environment produced, can use the net dispersion in rare-earth doped optical fibre or Chirp Bragg light gate control management laser cavity.But this
A little management methods have shortcoming, longer fiber resonance cavity can limit the raising of repetition rate, and Chirp Bragg grating can cause
The increase of laser cavity internal loss.The method building dissipative solitons and orphan's dual wavelength mode locked fiber laser at present is mainly in chamber
Being inserted into one section of chirped fiber grating, the effect of Chirp Bragg grating is to provide normal dispersion, clean in counter balance pocket for intracavity
Dispersion values makes the net dispersion at 1550nm and 1562nm be respectively anomalous dispersion and normal dispersion, so that at two wavelength
Pulse present tradition orphan and the feature of dissipative solitons respectively, it is achieved 1550nm tradition orphan and 1562nm dissipative solitons are double
Wavelength exports.This programme proposes one and realizes 2 mu m waveband dissipative solitons and tradition orphan's dual wavelength based on dispersion compensating fiber
The mode-locked laser device of output.The wavelength of dissipative solitons and tradition orphan is respectively 1952nm and 1980nm, dissipative solitons
Pulse width is 0.64ps, and spectral width is 8nm, and the pulse width of tradition orphan is 0.89ps, and spectral width is 6nm.And
In this programme, double tradition orphans, tradition orphan/dissipative solitons and three kinds of states of double dissipative solitons can convenient be changed.
It is a kind of 1.5 μm dissipative solitons based on Chirp Bragg grating and the dress of orphan's dual laser shown in Fig. 1
Put figure.Include the Er-doped fiber of one section of 18m length, two Polarization Controllers, four port circulators, two quasiconductors can be satisfied
With absorbing mirror and the Chirp Bragg grating of a 1nm@1550nm bandwidth.Laser system utilizes laser two pole of a 980nm
Pipe is as pumping source, and utilizes a wave division multiplex coupler that together with laserresonator end, pumping source is coupled into resonator cavity
Head end.Laser, by after wavelength division multiplexer, enters Er-doped fiber and is amplified, enter back into bonder, and by bonder
20% port is as laser output mouth.After bonder, access a Polarization Controller control laser polarization state, be afterwards
One four port circulator.Four port circulators have two effects, and one is to prevent laser reverse transfer as isolator, and two is to make
Semiconductor saturable absorbing mirror, fiber resonance cavity and Chirp Bragg grating is connected for interface unit.Chirp Bragg grating it
Rear connection has another Polarization Controller and saturable absorber device.Other parts in installation drawing are standard single-mode fiber
As Laser Transmission passage.The dispersion of Er-doped fiber and single-mode fiber is respectively-16 and 17ps/nm/km.Chirped fiber grating
Dispersion is 1.7ps/nm/km.The modulation depth of semiconductor saturable absorber SESAM1 and SESAM2 is respectively 30% and 9%,
Recovery time is 2ps.Laser has two different lengths and the light path of dispersion at intracavity, can be existed by regulation Polarization Controller simultaneously
Laser instrument produces 1550nm tradition orphan and 1562nm dissipative solitons.Produced tradition soliton spectrum width is 0.28nm,
Pulse width is 15.1ps, and the spectral width of dissipative solitons is 9.5nm, and pulse width is 0.55ps.
From this installation drawing, can be seen that it has the disadvantage in that
1, this technical scheme structure is complicated, utilizes four port circulators to be connected to a Chirp Bragg grating and two and half
Conductor saturable absorber.Tradition orphan and dissipative solitons forming process are the most more checked and are difficult to tune；
2, this technical scheme has used two semiconductor saturable absorber devices, and four port circulator and the Zhou used
Sing Bragg grating costly, so laser instrument is relatively costly；
3, this technical scheme utilizes Chirp Bragg grating as Dispersion managed device, and its loss is higher, limits laser
The lifting of device power；
4, turning between double tradition orphan, tradition orphan/dissipative solitons and three kinds of output modes of double dissipative solitons can not be realized
Change.
Summary of the invention
The present invention solves technical problem present in background technology, it is provided that a kind of brand new based on dispersion compensation light
Fine dissipative solitons and orphan's dual laser, this dual laser can produce 2 mu m waveband dissipative solitons and orphan is double
Wavelength exports, and has dissipative solitons/tradition orphan, double dissipative solitons and double tradition three kinds of twin wavelength laser output patterns of orphan, from
And solve conventional laser instrument and cannot export dissipative solitons and orphan's dual wavelength and the single technology of output mode is asked at 2 mu m wavebands
Topic.
For solving above-mentioned technical problem, the present invention by the following technical solutions:
Dissipative solitons based on dispersion compensating fiber and orphan's dual laser, including laser diode, bundling device, increasing
Benefit optical fiber, coupling elements, the unrelated isolator of polarization, polarization maintaining optical fibre, CNT, also include dispersion compensating fiber, be polarized
Device, the first Polarization Controller and the second Polarization Controller；Described bundling device, gain fibre, coupling elements, polarization unrelated every
From device, dispersion compensating fiber, polarization maintaining optical fibre, CNT, the first Polarization Controller, the polarizer and described second Polarization Controller
Being linked in sequence by optical fiber and constitute full optical fiber ring-type chamber, described laser diode is connected the pump light as laser instrument with bundling device
Source, by the regulation to intracavity net dispersion of the described dispersion compensating fiber, it is achieved 2 mu m waveband dissipative solitons and tradition orphan's dual wavelength
Laser exports.
Preferably, described polarization maintaining optical fibre uses panda type or butterfly structure optical fiber, described polarization maintaining optical fibre, the first polarization control
Device processed, the polarizer and described second Polarization Controller collectively form filtration module.
Preferably, described polarization maintaining optical fibre uses micro-nano fiber, Sagnac wave filter, lyot wave filter and cascaded optical fiber to warble
Grating.
Preferably, described CNT as saturable absorber and described filtration module with the use of producing double wave long pulse
Impulse light.
Preferably, described CNT uses Graphene, black phosphorus, topological insulator and other saturable absorption material system
Become.
Preferably, described dispersion compensating fiber plays the effect of regulation intracavity net dispersion, by optimizing dispersion compensating fiber
Length can make full optical fiber ring-type intracavity net dispersion value be essentially 0 in the certain wave strong point of 2 mu m wavebands, for dissipative solitons and tradition
The generation of orphan's dual-wavelength laser builds appropraite condition.
Preferably, described coupling elements is polarization beam apparatus, its two ends respectively with described gain fibre and polarization nothing
Pass isolator is connected；Described coupling elements and bundling device are used in conjunction with constituting the ring shape resonator of optical fiber laser.
Preferably, described first Polarization Controller and the second Polarization Controller can change the middle cardiac wave of intracavity dual-wavelength laser
Long, can change between dissipative solitons/tradition orphan, double dissipative solitons and double tradition three kinds of dual-wavelength laser output modes of orphan.
Compared with prior art, the invention has the beneficial effects as follows:
1, the present invention is capable of 2 mu m waveband tradition orphans and the output of dissipative solitons dual-wavelength laser, it is not necessary to four ports
Circulator and Chirp Bragg grating, structure is simpler, and cost is lower, and improves energy conversion efficiency.
2, in the present invention, the repetition rate of double-wavelength pulse is more consistent.
3, in the present invention, dual wavelength is tunable, can realize dissipative solitons/tradition orphan, double dissipation orphan by regulation
Son and double tradition three kinds of twin wavelength laser output patterns of orphan, thus realize twin wavelength laser output patten transformation simply, easily.
Accompanying drawing explanation
With detailed description of the invention, the present invention is described in further detail below in conjunction with the accompanying drawings.
Fig. 1 show in background of invention, 1.5 μm dissipative solitons based on chirped fiber grating and orphan's dual wavelength
The structural representation of the installation drawing of laser instrument；
Fig. 2 is the structural representation of the present invention；
Fig. 3 is dissipative solitons and tradition orphan's twin wavelength laser output spectrogram；
Labelling in figure is expressed as: 1, laser diode；2, bundling device；3, gain fibre；4, coupling elements；
5, output optical fibre；6, unrelated isolator is polarized；7, dispersion compensating fiber；8, polarization maintaining optical fibre；9, CNT；10, the first polarization
Controller；11, the polarizer；12, the second Polarization Controller.
Detailed description of the invention
The present invention is further illustrated below in conjunction with the accompanying drawings.Embodiments of the present invention include but not limited to following reality
Execute example.
As shown in Figure 2 and Figure 3, dissipative solitons based on dispersion compensating fiber and orphan's dual laser, including laser two
Pole pipe 1, bundling device 2, gain fibre 3, coupling elements 4, polarize unrelated isolator 6, polarization maintaining optical fibre 8, CNT 9, also
Including dispersion compensating fiber 7, the polarizer the 11, first Polarization Controller 10 and the second Polarization Controller 12；Described bundling device 2, increasing
Benefit optical fiber 3, coupling elements 4, polarize unrelated isolator 6, dispersion compensating fiber 7, polarization maintaining optical fibre 8, CNT 9, first
Polarization Controller 10, the polarizer 11 and described second Polarization Controller 12 are linked in sequence by optical fiber and constitute full optical fiber ring-type chamber, institute
State laser diode 1 and be connected the pump light source as laser instrument with bundling device 2, by described dispersion compensating fiber to intracavity solid color
The regulation dissipated, it is achieved 2 mu m waveband dissipative solitons and tradition orphan's dual-wavelength laser output.
Described polarization maintaining optical fibre 8 uses panda type or butterfly structure optical fiber, described polarization maintaining optical fibre the 8, first Polarization Controller
10, the polarizer 11 and described second Polarization Controller 12 collectively form filtration module.
Described polarization maintaining optical fibre 8 uses micro-nano fiber, Sagnac wave filter, lyot wave filter and cascaded optical fiber chirp grating.
Described CNT 9 swashs with the use of producing double-wavelength pulse with described filtration module as saturable absorber
Light.
Described CNT 9 uses Graphene, black phosphorus, topological insulator and other saturable absorption material to make.
Described dispersion compensating fiber 7 plays the effect of regulation intracavity net dispersion, can by optimizing dispersion compensating fiber 7 length
Full optical fiber ring-type intracavity net dispersion value is made to be essentially 0 in the certain wave strong point of 2 mu m wavebands, double for dissipative solitons and tradition orphan
The generation of wavelength laser builds appropraite condition.
Described coupling elements 4 is polarization beam apparatus, its two ends respectively with described gain fibre 3 and polarize unrelated isolation
Device 6 is connected；Described coupling elements 4 and bundling device 2 are used in conjunction with constituting the ring shape resonator of optical fiber laser.
Described first Polarization Controller 10 and the second Polarization Controller 12 can change the centre wavelength of intracavity dual-wavelength laser,
Can change between dissipative solitons/tradition orphan, double dissipative solitons and double tradition three kinds of dual-wavelength laser output modes of orphan.
The present embodiment laser diode 1 uses 793nm laser diode, and the pump light that 793nm laser diode produces leads to
Crossing bundling device 2 and enter the gain fibre 3 of a length of 7m, gain fibre 3 can be produced by energy level transition after absorbing 793nm pump light
The laser of 2 mu m wavebands, the 2 μm laser produced are divided into two parts by coupling elements 4, and a part is by output optical fibre 5 conduct
Output of laser, another part continues to transmit in laser cavity by polarizing unrelated isolator 6, and 2 μm laser pass sequentially through a length of
The dispersion compensating fiber 7 of 10m, the polarization maintaining optical fibre 8 of a length of 0.6m and CNT 9, form lock by CNT 9 effect
Mould pulse, carries out Polarization Control finally by the first Polarization Controller 10, the polarizer 11 and the second Polarization Controller 12, produces partially
The controllable polarization laser of polarization state.
The effect of bundling device 2 is the pump light produced by laser diode 1 and the laser coupled after intracavity transmits a week
Entering in gain fibre 3, bundling device 2 can use (2+1) × 1 bundling device；The effect of gain fibre 3 is to produce 2 mu m waveband lasers to carry
For level structure, this gain fibre 3 can be thulium doped fiber；The effect polarizing unrelated isolator 6 is to prevent laser reverse transfer；
Dispersion compensating fiber 7 effect is to provide suitable normal dispersion with balance full optical fiber ring-type chamber intracavity net dispersion, by optimizing color
Dissipating compensated optical fiber 7 length can make full optical fiber ring-type intracavity net dispersion value be essentially 0 in the certain wave strong point of 2 mu m wavebands, for consumption
The generation dissipating orphan and tradition orphan's dual-wavelength laser builds appropraite condition；Polarization maintaining optical fibre 8 effect is to maintain the inclined of endovenous laser
Polarization state characteristic, polarization maintaining optical fibre 8 is preferably selected panda type or butterfly structure optical fiber but it also may select micro-nano fiber, Sagnac
Wave filter, lyot wave filter, cascaded optical fiber chirp grating etc. are filtered as filtering device；CNT 9 functions as
Laser pulse is modulated and shaping by saturable absorber, produce mode locking pulse, nanotube 9 may be used without Graphene, black phosphorus,
Topological insulator and other saturable absorption material are made and are substituted；First Polarization Controller 10, the polarizer 11 and second are inclined
12 3 devices of controller that shake the most jointly act on the generation controllable polarization laser of polarization state and collectively form filter with polarization maintaining optical fibre 8
Mode block, produces dual-wavelength laser, reaches to tune dual-wavelength laser by regulating described Polarization Controller change filtering characteristic
Purpose, CNT 9 as saturable absorber and this filtration module with the use of producing double-wavelength pulse laser.
Coupling elements 4 is polarization beam apparatus, its two ends respectively with described gain fibre 3 and the unrelated isolation of described polarization
Device 6 is connected；Described coupling elements 4 and described bundling device 2 are used in conjunction with constituting the ring shape resonator of optical fiber laser.
The present embodiment is designed by above structure, it is possible to realize 2 mu m waveband tradition orphan and dissipative solitons dual-wavelength lasers
Output, it is not necessary to four traditional port circulators and Chirp Bragg grating, structure is simpler, and cost is lower, and improves energy
Amount conversion efficiency, and the repetition rate of double-wavelength pulse is more consistent.
The present embodiment is designed by above structure, such that it is able to the dual wavelength of regulation output, by regulation the first polarization control
Device 10 processed and the second Polarization Controller 12 can realize dissipative solitons/tradition orphan, double dissipative solitons and double tradition orphan three kinds
Twin wavelength laser output pattern, thus realize twin wavelength laser output patten transformation simply, easily.
It is illustrated in figure 3 dissipative solitons and tradition orphan's twin wavelength laser output spectrogram；Pump light source 1 uses 793nm laser
During diode, owing to there is dispersion compensating fiber 7 so that intracavity net dispersion net dispersion value at 1965nm is 0, now claims
1965nm is zero-dispersion wavelength.Regulating the first Polarization Controller 10 and the second Polarization Controller 12, the double-wavelength pulse of intracavity changes
Becoming, when the shortwave pulse in double-wavelength pulse and long wave impulse are respectively at zero-dispersion wavelength two ends, shortwave pulse is just in
Often dispersion district, long wave impulse is in the anomalous dispersion region, so presenting 1952nm dissipative solitons and 1980nm tradition orphan respectively
State, also can show that from figure the pulse width of dissipative solitons is 0.64ps, and spectral width is 8nm；The pulse width of tradition orphan
Degree is 0.89ps, and spectral width is 6nm.
During by regulating the first Polarization Controller 10 and the second Polarization Controller 12, also can make the double-wavelength pulse of intracavity
It is shorter than zero-dispersion wavelength simultaneously or is longer than zero-dispersion wavelength simultaneously.When double-wavelength pulse is shorter than zero-dispersion wavelength simultaneously, two
Wavelength, all in normal dispersion region, will produce double dissipative solitons output；When double-wavelength pulse is longer than zero-dispersion wavelength simultaneously, two
Individual wavelength, all in the anomalous dispersion region, will be produced double tradition orphan's output, thus can be turned easily by regulation Polarization Controller
Change dual-wavelength laser output mode.
It is embodiments of the invention as mentioned above.Design parameter in described embodiment and embodiment is merely to clear
The invention proof procedure of Chu statement inventor, and it is not used to limit the scope of patent protection of the present invention, the patent protection of the present invention
Scope is still as the criterion with its claims, and the equivalent structure that the description of every utilization present invention and accompanying drawing content are made becomes
Change, in like manner should be included in protection scope of the present invention.
Claims (8)
1. dissipative solitons based on dispersion compensating fiber and orphan's dual laser, it is characterised in that: include laser diode
(1), bundling device (2), gain fibre (3), coupling elements (4), polarize unrelated isolator (6), polarization maintaining optical fibre (8), carbon are received
Mitron (9), it is characterised in that also include dispersion compensating fiber (7), the polarizer (11), the first Polarization Controller (10) and second
Polarization Controller (12)；Described bundling device (2), gain fibre (3), coupling elements (4), polarize unrelated isolator (6), color
Dissipate compensated optical fiber (7), polarization maintaining optical fibre (8), CNT (9), the first Polarization Controller (10), the polarizer (11) and described second
Polarization Controller (12) is linked in sequence by optical fiber and constitutes full optical fiber ring-type chamber, and described laser diode (1) is connected with bundling device (2)
As the pump light source of laser instrument, by the regulation to intracavity net dispersion of the described dispersion compensating fiber, it is achieved 2 mu m wavebands dissipate lonely
Son and tradition orphan's dual-wavelength laser output.
Dissipative solitons based on dispersion compensating fiber the most according to claim 1 and orphan's dual laser, its feature
It is: described polarization maintaining optical fibre (8) uses panda type or butterfly structure optical fiber, described polarization maintaining optical fibre (8), the first Polarization Controller
(10), the polarizer (11) and described second Polarization Controller (12) collectively form filtration module.
Dissipative solitons based on dispersion compensating fiber the most according to claim 1 and orphan's dual laser, its feature
Be: described polarization maintaining optical fibre (8) use micro-nano fiber, Sagnac wave filter,
Lyot wave filter and cascaded optical fiber chirp grating.
Dissipative solitons based on dispersion compensating fiber the most according to claim 2 and orphan's dual laser, its feature
Be: described CNT (9) as saturable absorber and described filtration module with the use of producing double-wavelength pulse laser.
Dissipative solitons based on dispersion compensating fiber the most according to claim 4 and orphan's dual laser, its feature
It is: described CNT (9) uses Graphene, black phosphorus, topological insulator and other saturable absorption material to make.
Dissipative solitons based on dispersion compensating fiber the most according to claim 1 and orphan's dual laser, its feature
It is: described dispersion compensating fiber (7) plays the effect of regulation intracavity net dispersion, by optimizing dispersion compensating fiber (7) length
Full optical fiber ring-type intracavity net dispersion value can be made to be essentially 0 in the certain wave strong point of 2 mu m wavebands, for dissipative solitons and tradition orphan
The generation of dual-wavelength laser builds appropraite condition.
Dissipative solitons based on dispersion compensating fiber the most according to claim 1 and orphan's dual laser, its feature
Be: described coupling elements (4) is polarization beam apparatus, its two ends respectively with described gain fibre (3) and polarization unrelated every
It is connected from device (6)；Described coupling elements (4) and bundling device (2) are used in conjunction with constituting the ring shape resonator of optical fiber laser.
Dissipative solitons based on dispersion compensating fiber the most according to claim 1 and orphan's dual laser, its feature
It is: described first Polarization Controller (10) and the second Polarization Controller (12) can change the middle cardiac wave of intracavity dual-wavelength laser
Long, can change between dissipative solitons/tradition orphan, double dissipative solitons and double tradition three kinds of dual-wavelength laser output modes of orphan.
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107039876A (en) * | 2017-06-26 | 2017-08-11 | 电子科技大学 | The dual wavelength thulium-doped fiber laser that noise like and high-frequency harmonic locked mode coexist |
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| CN107069410A (en) * | 2017-03-28 | 2017-08-18 | 电子科技大学 | A kind of multipurpose bidirectional passive mode-locking full optical fiber laser system |
| CN107069410B (en) * | 2017-03-28 | 2019-02-15 | 电子科技大学 | A kind of multipurpose bidirectional passive mode-locking full optical fiber laser system |
| CN107069398A (en) * | 2017-04-07 | 2017-08-18 | 长春理工大学 | Dipulse square wave optical fiber laser |
| CN107039876A (en) * | 2017-06-26 | 2017-08-11 | 电子科技大学 | The dual wavelength thulium-doped fiber laser that noise like and high-frequency harmonic locked mode coexist |
| CN107359497B (en) * | 2017-07-07 | 2020-09-08 | 清华大学 | Method for dispersion management and chirp compensation based on micro-nano optical fiber |
| CN107359497A (en) * | 2017-07-07 | 2017-11-17 | 清华大学 | A kind of method of dispersion management and chirp compensation based on micro-nano fiber |
| CN107910735A (en) * | 2017-12-15 | 2018-04-13 | 西北大学 | The inclined mode locked fiber laser of all risk insurance based on a variety of soliton state outputs of chirped fiber Bragg grating |
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| CN108777427B (en) * | 2018-06-20 | 2019-09-27 | 华中科技大学 | A kind of fiber laser light source of polymorphic orphan's bidirectional output |
| CN108923234A (en) * | 2018-08-29 | 2018-11-30 | 中国人民解放军国防科技大学 | Super-continuum spectrum generating device |
| CN108923234B (en) * | 2018-08-29 | 2024-03-08 | 中国人民解放军国防科技大学 | Supercontinuum generating device |
| CN108832471A (en) * | 2018-09-17 | 2018-11-16 | 聊城大学 | A kind of dual wavelength lock-out pulse optical fiber laser |
| CN111048984A (en) * | 2019-12-30 | 2020-04-21 | 哈尔滨工业大学（深圳） | Double-cavity mode-locking and independent-running all-fiber laser |
| CN111048984B (en) * | 2019-12-30 | 2021-08-03 | 哈尔滨工业大学（深圳） | Double-cavity mode-locking and independent-running all-fiber laser |
| CN111446616A (en) * | 2020-06-01 | 2020-07-24 | 长春追光科技有限公司 | Dissipation soliton mode locking fiber laser based on MSM structure |
| CN111769429A (en) * | 2020-06-28 | 2020-10-13 | 南京邮电大学 | Switchable dissipative soliton and traditional soliton mode-locked fiber laser system |
| RU2764384C1 (en) * | 2020-12-03 | 2022-01-17 | Илья Олегович Орехов | Method for controlling the amount of coupled solitons in a femtosecond fibre laser |
| CN114725759A (en) * | 2022-03-14 | 2022-07-08 | 电子科技大学 | Optical fiber laser system for generating high-energy soliton cluster pulses |
| CN114725759B (en) * | 2022-03-14 | 2023-04-07 | 电子科技大学 | Optical fiber laser system for generating high-energy soliton cluster pulses |
| CN117996553A (en) * | 2024-04-07 | 2024-05-07 | 山东省科学院激光研究所 | Dual-wavelength femtosecond fiber laser |
| CN117996553B (en) * | 2024-04-07 | 2024-06-07 | 山东省科学院激光研究所 | Dual-wavelength femtosecond fiber laser |
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