CN105591272A - Device for generating high energy vector soliton rain based on thulium doped optical fiber laser - Google Patents
Device for generating high energy vector soliton rain based on thulium doped optical fiber laser Download PDFInfo
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- CN105591272A CN105591272A CN201610152779.8A CN201610152779A CN105591272A CN 105591272 A CN105591272 A CN 105591272A CN 201610152779 A CN201610152779 A CN 201610152779A CN 105591272 A CN105591272 A CN 105591272A
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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
- H01S3/10061—Polarization control
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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
- H01S3/10038—Amplitude control
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/10—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating
- H01S3/11—Mode locking; Q-switching; Other giant-pulse techniques, e.g. cavity dumping
- H01S3/1106—Mode locking
- H01S3/1112—Passive mode locking
- H01S3/1115—Passive mode locking using intracavity saturable absorbers
- H01S3/1118—Semiconductor saturable absorbers, e.g. semiconductor saturable absorber mirrors [SESAMs]; Solid-state saturable absorbers, e.g. carbon nanotube [CNT] based
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- Optics & Photonics (AREA)
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Abstract
The invention belongs to the strong laser and substance interacting field, and especially relates to a device for generating high energy vector soliton rain based on a thulium doped optical fiber laser. The device for generating high energy vector soliton rain based on the thulium doped optical fiber laser includes passive mode-locking optical fiber lasers 1-10 combined with saturable absorbers, a 2-micrometer optical fiber polarization controller 11, and a 2-micrometer polarization beam splitter 12. The passive mode-locking optical fiber lasers 1-10 combined with the saturable absorbers include a pumping source 1, a multi-mode beam combiner 2 for pumping, a double-cladding thulium doped single-mode optical fiber 3, a multi-mode beam combiner 4 for pumping, a pumping source 5, an optical element 6, a 2-micrometer polarization controller 7, a coupler 8, an isolator 9, and a 2-micrometer transmission single-mode optical fiber 10 which are connected in turn along an optical path and form an annular chamber. A coupling output end is connected to the polarization controller 11 and the quadrature polarization beam splitter 12 in turn. The device for generating the high energy vector soliton rain based on the thulium doped optical fiber laser has a simple structure and high conversion efficiency, can be widely applied to the medical, military, laser radar and environment detection fields.
Description
Technical field
The invention belongs to light laser and matter interaction field, relate in particular to a kind of based on thulium-doped fiber laser generation high-energyVector orphan rain device.
Technical background
Recent two decades comes, and the basic research of mode locked fiber laser obtains fast-developing, and optical fiber laser is nonlinear system, whenWhen light pulse intensity is higher, nonlinear effect is very obvious, can affect the performance of optical fiber laser, wherein just comprises many orphans arteries and veinsThe generation of punching. Can utilize the pulse of the high-order harmonic wave locked mode acquisition high repetition frequency in many soliton states. Due to peak value clamping effectWith Energy Quantization effect, laser instrument can obtain many soliton pulses in the time that pump power is higher, and based on nonlinear polarization rotationOn the basis of locked mode and saturated absorbing body locked mode, carry out a large amount of research. Wherein, orphan's dynamic studies is the focus that people studyOne of problem. Orphan's rain can think to be in a kind of state between continuous wave and stable mode-locking, is " weak locked mode ", also canBe considered to the one in many orphans state, but be different from the many orphans of constraint. Mobile orphan's major part is from continuous wave modeAmplification and shaping. As shown in Figure 1, orphan's rain comprises three Partial Feature: orphan is concentrated, orphan's movement, constraint orphan.Mobile orphan moves to constraint orphan along a direction and speed. The rainy orphan of this phenomenon similar constraint orphan, orphanRain is exactly a kind of intermediateness before locked mode forms, and for its research, is of value to orphan's dynamic analysis of locked mode. Literary compositionOffer S.ChouliandP.Grelu, Opt.Express.2009,1714), pp.11776 – 11781. reports based on Er-doped fiber nonlinear polarizationRotation laser with active-passive lock mould has been studied many orphans and has been moved. Subsequently, based on Graphene Mode-locked Erbium-doped Fiber LaserSongYF, LiL, ZhangH, Opticsexpress.2013,218), pp.10010-10018, the passive mode-locking of nonlinear polarization rotation is mixedYtterbium optical fiber laser BaoC, XiaoX, YangC.Opt.lett.2013,3811), pp.1875-1877. has inquired into orphan's dynamic problem. SoAnd they concentrate on ytterbium-doping optical fiber laser and erbium doped fiber laser at work, our experimental construction one based on graphite rare twoThe double clad of molybdenum sulfide composite is mixed thulium annular chamber passive mode-locking fiber laser, and this mode locked fiber laser is with rare two sulphur of graphiteChange molybdenum composite material is saturable absorber. The rare molybdenum bisuphide composite of graphite has very fast about hundreds of femtosecond recovery time) and lightDamage threshold is high, the pulse of 2000nm near-infrared laser have more stronger nonlinear optical effect and more excellent super bandwidth saturatedAbsorb. The advantage of this mode locked fiber laser is: 1, can realize near 2 microns and human eye safe waveband is observed vectorOrphan's rain; 2, in the time observing vector orphan rain, do not need to adjust state in pump power and chamber, just can realize the orientation to orphanTranslational speed is controlled, and can control impuls intensity; 3 adopt the simple in structure and both-end pumping technology of ring resonators to improveConversion efficiency; 4, double clad is mixed thulium single-mode fiber and 2 microns transmission single-mode fibers and can be realized high energy pulse output.
Summary of the invention
The object of this invention is to provide a kind of realization and observe high-energy vector orphan rain at 2 microns of human eye safe wavebands, thus realExisting soliton pulse intensity is controlled, and orphan's displacement speed is controlled produce high-energy based on thulium-doped fiber laserVector orphan rain device.
The object of the present invention is achieved like this:
A kind of based on thulium-doped fiber laser generation high-energy vector orphan rain device, comprise the passive mode-locking of compound saturated absorbing bodyOptical fiber laser 1-10,2 11,2 microns of micron optical fiber Polarization Controllers polarization beam apparatus 12, described compound saturated absorbing bodyPassive mode-locking fiber laser comprises the pumping source 1 connecting successively along light path, bundling device 2 for multimode pumping, and double clad is mixed thulium single modeOptical fiber 3, bundling device 4 for multimode pumping, pumping source 5,6,2 microns of Polarization Controllers 7 of optical element, coupler 8, isolation9,2 microns of transmission single-mode fiber 10 looping chambeies of device, coupling output connects Polarization Controller 11 successively, and cross-polarization dividesBundle device 12.
Single orphan's maximum peak power of the passive mode-locking fiber laser of described compound saturated absorbing body is greater than 20 kilowatts.
The pump light wavelength of described pumping source output, corresponding to the absworption peak of thulium-doped silica fib, is respectively 750 nanometers to 820Nanometer, single pump power output is greater than 10 watts.
Described optical element 6 is the compound saturable absorber of the rare molybdenum bisuphide of graphite, adopts pulsed laser deposition legal system standby, willThe rare molybdenum bisuphide material of graphite is attached to one section and draws cone optical fiber evanscent field after treatment side, and forms in coupling access resonator.
Described double clad is mixed thulium single-mode fiber 3, and core diameter is from 10 microns to 40 microns, cladding diameter from 130 microns to400 microns.
2 described micron optical fiber Polarization Controllers 11, orphan's displacement speed of two polarized orthogonals of control.
Beneficial effect of the present invention is:
Compared with prior art, the present invention has realized 2 microns and has observed high-energy vector orphan rain, by Polarization Controller 11Adjusting, not changing in chamber under state status, thereby it is controlled to realize soliton pulse intensity, and to orphan's displacement speedControl. Especially the realization of orphan's rain and reproduction, all has good stability. The present invention is simple in structure, conversion efficiencyHeight, can be widely used in the fields such as medical treatment, military affairs, laser radar and environment measuring.
Brief description of the drawings
Fig. 1 is orphan's rain schematic diagram.
Fig. 2 is the device that the present invention is based on thulium-doped fiber laser generation high-energy vector orphan rain.
Detailed description of the invention
Below in conjunction with drawings and Examples, the present invention is described in detail.
The invention provides a kind of double clad thulium-doped fiber laser based on the rare molybdenum bisuphide composite of graphite and produce high-energy vectorThe method of orphan's rain and device thereof, it comprises: the passive mode-locking fiber laser of the rare molybdenum bisuphide composite of graphite, 2 microns11,2 microns of polarization beam apparatus 12 of optical fiber polarization controller.
The passive mode-locking fiber laser of described compound saturated absorbing body is that 1,5, two bundling devices of two pumping sources are respectively and close bundleDevice 2 and bundling device 4, isolator 9, optical fiber polarization controller 7, optical element 6,8 and 2 microns of the couplers of 20:80The optical fiber 10 of transmission single-mode fiber;
Described pumping source, bundling device, isolator, optical element, coupler, 2 microns of transmission single-mode fiber and double clad are mixed thuliumOptical fiber looping chamber, pumping source 1 connects the input of bundling device 2; The output of bundling device 2 connects double clad thulium doped fiber3, double clad thulium doped fiber 3 other ends are connected with the output of bundling device 4, and the signal end of bundling device 2 is connecting 2 microns successivelyTransmission single-mode fiber 10, isolator 9, is finally 80% output of coupler 8, the input of coupler is connecting successively partiallyThe controller 7 that shakes, optical element 6, the signal end of bundling device 4,20% output is connecting Polarization Controller 11 and cross-polarizationBeam splitter 12.
Described double clad thulium doped fiber 3, core diameter is from 10 microns to 40 microns, and cladding diameter is from 130 microns to 400Micron.
Described bundling device 2,4th, multimode pumping bundling device.
Described optical element 6 is the rare molybdenum bisuphide composite of carrying graphite saturable absorbers, and it has recovery time very fastHigh and there is the advantages such as stronger nonlinear optical effect with single pulse energy.
Described Polarization Controller 7 is 2 micron optical fiber Polarization Controllers, to the dispersion of optic fiber ring-shaped cavity compensating polarizing.
Described polarization beam apparatus 12 is the dynamic-solitons that orphan's rain decomposed to two polarized orthogonals.
Described Polarization Controller 11 is 2 micron optical fiber Polarization Controllers, control impuls intensity and orphan's displacement speed.
The device that embodiment produces high-energy vector orphan rain builds.
As shown in Figure 2,793nm pumping source 1 connects the pumping input of multimode pumping bundling device 2; Multimode pumping is with closing bundleThe output of device 2 connects thulium doped fiber one end of 14 meters; The thulium doped fiber other end connects the output of multimode pumping bundling device 4;793nm pumping source 5 connects the pumping input of multimode pumping bundling device 4; The signal end of multimode pumping use bundling device 2 successivelyConnecting 10,2 microns of polarization irrelevant isolators 9 of 2 microns of transmission single-mode fibers of 10 meters, is finally 2 microns of couplers 880% output, the input of 2 microns of couplers is connecting 2 microns of Polarization Controllers 7 successively, saturated absorption bulk optical element 6,The signal end of bundling device 4 for multimode pumping, 20% output is connecting 11 and 2 microns of cross-polarizations of 2 microns of Polarization Controllers and is dividingBundle device 12. Two pumping sources of whole use, two bundling devices, double clad thulium doped fiber, single-mode fiber, isolator, optical element,Polarization Controller, coupler, Polarization Controller and polarization beam apparatus form, and realize the passive mode-locking pulse of compound saturated absorbing bodyOutput, pulse laser is by 20% output output of coupler, 20% output is connecting Polarization Controller and polarization beam splittingDevice. During by adjusting Polarization Controller 7 and corresponding pump power, available orphan's rain as shown in Figure 1, is passing through adjustingPolarization Controller 11 and cross-polarization beam splitter 12 are realized orphan's displacement speed and the pulse strength of orphan's rain controlled.
Claims (6)
1. produce a high-energy vector orphan rain device based on thulium-doped fiber laser, comprise the passive lock of compound saturated absorbing bodyMode fiber laser instrument (1-10), 2 micron optical fiber Polarization Controllers (11), 2 microns of polarization beam apparatus (12), is characterized in that:The passive mode-locking fiber laser of described compound saturated absorbing body comprises the pumping source (1) connecting successively along light path, and multimode pumping is usedBundling device (2), double clad is mixed thulium single-mode fiber (3), and multimode is bundling device (4) for pumping, pumping source (5), optical element (6),2 microns of Polarization Controllers (7), coupler (8), isolator (9), 2 microns of transmission single-mode fiber (10) looping chambeies,Coupling output connects Polarization Controller (11), cross-polarization beam splitter (12) successively.
2. one according to claim 1 produces high-energy vector orphan rain device, its feature based on thulium-doped fiber laserBe: single orphan's maximum peak power of the passive mode-locking fiber laser of described compound saturated absorbing body is greater than 20 kilowatts.
3. one according to claim 1 produces high-energy vector orphan rain device, its feature based on thulium-doped fiber laserBe: the pump light wavelength of described pumping source output, corresponding to the absworption peak of thulium-doped silica fib, is respectively 750 nanometers and arrives820 nanometers, single pump power output is greater than 10 watts.
4. one according to claim 1 produces high-energy vector orphan rain device, its feature based on thulium-doped fiber laserBe: described optical element (6) is the compound saturable absorber of the rare molybdenum bisuphide of graphite, adopt pulsed laser deposition legal system standby,Rare graphite molybdenum bisuphide material is attached to one section and draws cone optical fiber evanscent field after treatment side, and shape in coupling access resonatorBecome.
5. one according to claim 1 produces high-energy vector orphan rain device, its feature based on thulium-doped fiber laserBe: described double clad is mixed thulium single-mode fiber (3), core diameter is from 10 microns to 40 microns, and cladding diameter is micro-from 130Rice is to 400 microns.
6. one according to claim 1 produces high-energy vector orphan rain device, its feature based on thulium-doped fiber laserBe: 2 described micron optical fiber Polarization Controllers (11), orphan's displacement speed of two polarized orthogonals of control.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610152779.8A CN105591272B (en) | 2016-03-17 | 2016-03-17 | One kind generating high-energy vectors orphan's rain device based on thulium-doped fiber laser |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610152779.8A CN105591272B (en) | 2016-03-17 | 2016-03-17 | One kind generating high-energy vectors orphan's rain device based on thulium-doped fiber laser |
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| CN105591272A true CN105591272A (en) | 2016-05-18 |
| CN105591272B CN105591272B (en) | 2018-10-26 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110224290A (en) * | 2019-06-11 | 2019-09-10 | 昆山瞬刻激光科技有限公司 | Orphan's spacing and the controllable orphan's molecular laser and method of orphan's number |
| CN111244739A (en) * | 2020-01-20 | 2020-06-05 | 江苏师范大学 | Scalar soliton rain laser and scalar soliton rain generation method |
| CN110224290B (en) * | 2019-06-11 | 2024-05-24 | 昆山瞬刻激光科技有限公司 | Soliton distance and number-controllable soliton molecule laser and method |
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| US20110280263A1 (en) * | 2008-06-26 | 2011-11-17 | Khanh Kieu | Saturable absorber using a fiber taper embedded in a nanostructure/polymer composite and lasers using the same |
| CN104409952A (en) * | 2014-11-24 | 2015-03-11 | 江苏师范大学 | Double-cladding thulium-doped all-fiber ultrafast laser based on nonlinear polarization rotation mode locking |
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2016
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| US20110280263A1 (en) * | 2008-06-26 | 2011-11-17 | Khanh Kieu | Saturable absorber using a fiber taper embedded in a nanostructure/polymer composite and lasers using the same |
| CN104409952A (en) * | 2014-11-24 | 2015-03-11 | 江苏师范大学 | Double-cladding thulium-doped all-fiber ultrafast laser based on nonlinear polarization rotation mode locking |
Non-Patent Citations (3)
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| YU FENG SONG ET AL.: "Vector multi-soliton operation and interaction in a grapheme mode-locked fiber laser", 《OPTICS EXPRESS》 * |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110224290A (en) * | 2019-06-11 | 2019-09-10 | 昆山瞬刻激光科技有限公司 | Orphan's spacing and the controllable orphan's molecular laser and method of orphan's number |
| CN110224290B (en) * | 2019-06-11 | 2024-05-24 | 昆山瞬刻激光科技有限公司 | Soliton distance and number-controllable soliton molecule laser and method |
| CN111244739A (en) * | 2020-01-20 | 2020-06-05 | 江苏师范大学 | Scalar soliton rain laser and scalar soliton rain generation method |
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| CN105591272B (en) | 2018-10-26 |
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