CN105720467A - 2-micrometer waveband all-polarization-maintaining locked-mode ultrafast pulse fiber laser - Google Patents
2-micrometer waveband all-polarization-maintaining locked-mode ultrafast pulse fiber laser Download PDFInfo
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- CN105720467A CN105720467A CN201610297150.2A CN201610297150A CN105720467A CN 105720467 A CN105720467 A CN 105720467A CN 201610297150 A CN201610297150 A CN 201610297150A CN 105720467 A CN105720467 A CN 105720467A
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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
- H01S3/06712—Polarising fibre; Polariser
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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
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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
- H01S3/06716—Fibre compositions or doping with active elements
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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
- H01S3/08—Construction or shape of optical resonators or components thereof
- H01S3/081—Construction or shape of optical resonators or components thereof comprising three or more reflectors
- H01S3/083—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
- H01S3/10—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating
- H01S3/13—Stabilisation of laser output parameters, e.g. frequency or amplitude
- H01S3/1303—Stabilisation of laser output parameters, e.g. frequency or amplitude by using a passive reference, e.g. absorption cell
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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
- H01S3/13—Stabilisation of laser output parameters, e.g. frequency or amplitude
- H01S3/136—Stabilisation of laser output parameters, e.g. frequency or amplitude by controlling devices placed within the cavity
- H01S3/137—Stabilisation of laser output parameters, e.g. frequency or amplitude by controlling devices placed within the cavity for stabilising of frequency
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Abstract
The invention relates to a 2-micrometer waveband all-polarization-maintaining locked-mode ultrafast pulse fiber laser, and belongs to the field of the laser technology and nonlinear optics. The 2-micrometer waveband all-polarization-maintaining locked-mode ultrafast pulse fiber laser mainly comprises a laser pump source, a polarization-maintaining pump combiner, a polarization-maintaining thulium-doped or thulium and holmium co-doped optical fiber, a polarization-maintaining circulator, a polarization-maintaining isolator, a saturable absorption body or saturable absorption mirror, a polarization-maintaining coupler and a polarization-maintaining passive optical fiber. The thulium-doped or holmium-doped or thulium and holmium co-doped optical fiber is used as a gain medium, and the saturable absorption body or the saturable absorption mirror is combined with a 8-shaped resonant cavity to be collectively used as a passive locked-mode device, so that the 2-micrometer waveband, low-power pump, all-polarization-maintaining and mixed locked-mode ultrafast pulse is outputted. By adopting the structure, the all-optical-fiber welding is realized. The 2-micrometer waveband all-polarization-maintaining locked-mode ultrafast pulse fiber laser has the advantages of low pump power, stable locked mode, simple structure and stable and reliable system locked mode, and not only can be used as a laser light source with excellent performance, but also can be used as a signal seed source to be further amplified.
Description
Technical field
The present invention relates to and relate to fiber laser technology field, particularly a kind of 2 inclined mixed mode-locking ultrashort pulse fiber lasers of micron waveband all risk insurance.
Background technology
In prior art, optical fiber laser is the laser instrument using the optical fiber of doped with rare-earth elements as gain media, by the different rare earth element that adulterates, it is possible to make the service band of optical fiber laser cover middle-infrared band.Compared with solid state laser, optical fiber laser has that volume is little, threshold value is low, efficiency is high, good beam quality, without adjusting the advantages such as light path.Wherein, 2 micron optical fiber laser instrument, owing to its output wavelength is close to the absworption peak of hydroxyl H-O, are in safety range of human eye, have important prospect in various fields.
In recent years, high power pulsed laser is used widely in processing, military affairs, medical science.And common pulse optical fiber output mean power is general all only in mW magnitude, in order to be able to obtain the laser pulse of high-power all optical fibre structure, it is generally required to we are by impulse type seed light fibre laser is carried out main oscillating laser amplification, namely obtain the output of high-power pulse laser by the pulse signal of amplification low average power.Compared to the laser of Ordinary fiber lasers output, the laser using the output of full polarization fibre laser is line polarized light, and seed source is by after amplifying, and its wave mode and pulsewidth change hardly.
Generally, in figure of eight mode locking pulse optical fiber laser, want to reach self-locking mode and be necessary for sufficiently large Threshold pumped power, and the power of some optical fiber laser compares relatively low, the self-locking mode of figure of eight fiber loop mirror can not be realized, and stability is relatively low.
Summary of the invention
It is an object of the invention to solve Problems existing in optical fiber laser mentioned above, it is proposed that a kind of 2 inclined mixed mode-locking ultrashort pulse fiber lasers of micron waveband all risk insurance.The present invention utilizes inclined the mixing thulium or mix holmium or Tm Ho co doped fiber as gain media of guarantor, saturable absorber or saturable absorbing mirror combine collectively as passive mode-locking device with 8-shaped resonator cavity, reduce the Threshold pumped power realizing locked mode, finally achieve low pump power, 2 micron wavebands, all risk insurance partially, mixed mode-locking, ultrashort pulse output.Present configuration achieves all-fiber welding, has the advantage that pump power is relatively low, locked mode is stable, simple in construction, system are stable and reliable in work, can not only be used for the LASER Light Source of function admirable and uses, it is possible to amplifies further as signal seed source.Technical scheme is as follows:
A kind of 2 inclined mixed mode-locking ultrashort pulse fiber lasers of micron waveband all risk insurance, it includes the laser pumping source for producing laser, for pumping laser is coupled to protecting inclined input coupler, be used for producing protecting inclined gain fibre, being used for carrying out optical signal branch and close protecting inclined directional coupler, mixed mode-locking absorption plant, being used for three port polarization-maintaining couplers that power is allocated and protect inclined passive fiber of road of 2 microns of Output of lasers in resonator cavity；Wherein,
The outfan of described laser pumping source connects the pumping input a protecting inclined input coupler, the outfan b protecting inclined input coupler connects the one end protecting inclined gain fibre, the other end protecting inclined gain fibre connects the input c protecting inclined directional coupler, the straight-through outfan d protecting inclined directional coupler connects mixed mode-locking absorption plant, the outfan of mixed mode-locking absorption plant connects the input j of three port polarization-maintaining couplers, the outfan of three port polarization-maintaining couplers has two-way, one tunnel is as the outfan l of mode-locked ultrashort pulse laser pulse, outfan l connects the input n of the second inclined isolator of guarantor, another road is connected as outfan k and the isolation end m protecting inclined directional coupler, wherein it is attached each through the inclined passive fiber of guarantor between each parts.
Further, described mixed mode-locking absorption plant includes: figure of eight chamber, for the saturable absorber of locked mode or saturable absorbing mirror, when mixed mode-locking absorption plant is saturable absorber, between described saturable absorber and three port polarization-maintaining couplers, it is additionally provided with the first inclined isolator of guarantor；When mixed mode-locking absorption plant is saturable absorbing mirror, between described saturable absorbing mirror and three port polarization-maintaining couplers, it is additionally provided with the first inclined isolator of guarantor protects inclined circulator.
Further, the single mode erbium-ytterbium co-doped fiber laser instrument of wavelength 1570nm, output 1W centered by the lasing light emitter of described laser pumping source.
Further, the described rare earth doping elements protecting inclined gain fibre is that thulium or holmium or thulium holmium are co-doped with.
Further, the inclined passive fiber of described guarantor adopts and includes being exclusively used in the PM1950 optical fiber propagating 2 mum laser and PM2000 optical fiber, and all adopts the mode that fibre core aligns directly fused together by protecting inclined heat sealing machine between each parts.
Further, described saturable absorbing mirror is the one in semiconductor saturable absorbing mirror, CNT saturable absorbing mirror, Graphene saturable absorbing mirror, graphene oxide saturable absorbing mirror and topological insulator saturable absorbing mirror.
Further, described saturable absorber is the one in semiconductor saturable absorber, CNT saturable absorber, Graphene saturable absorber, graphene oxide saturable absorber and topological insulator saturable absorber.
Further, protecting inclined input coupler can be protect inclined bundling device or guarantor's partial wave division multiplexer.
Further, the inclined directional coupler of described guarantor includes 50:50 and protects inclined directional coupler.
Further, the described second input n protecting inclined isolator accounts for 30%, and another outfan k and 50:50 protects the isolation end m of inclined directional coupler 4 and is connected and accounts for 70%.
Advantages of the present invention and having the beneficial effect that:
1, it is an advantage of the current invention that to achieve the mixed mode-locking of optical fiber laser, scheme adopt saturable absorber or saturable absorbing mirror are implemented in combination with mixed mode-locking with figure of eight fiber loop mirror, the pumping threshold of locked mode can be reduced, finally realize the purpose of locked mode under relatively low pump power.
2, the present invention adopts the mixed mode-locking that saturable absorber or saturable absorbing mirror are implemented in combination with figure of eight fiber loop mirror, makes locked mode more stable, finally realizes the stable mode-locking of optical fiber laser.
3, the pumping threshold of the present invention is relatively low, has very big effect for protection saturable absorber, saturable absorbing mirror, it is prevented that the too high damage mode-locking device of power.
4, the device that the present invention adopts is the inclined device of all risk insurance, output is line polarized light, good stability, it is possible to for the seed source of superpower laser, can be widely used for the every field of space flight, aviation, navigation, the industry national economy such as manufacturing technology and communication after amplifying in right amount.
What 5, total of the present invention adopted is that the mode alignd by fibre core utilizes the inclined heat sealing machine of guarantor by directly fused for polarization maintaining optical fibre method together, has the advantages such as loss is low, simple in construction, environmental stability are good, it is easy to accomplish commercial application.
Accompanying drawing explanation
Fig. 1 is the theory structure schematic diagram that the present invention provides preferred embodiment embodiment 1；
Fig. 2 is the theory structure schematic diagram of embodiment 2；
Labelling in figure: 1, laser pumping source, 2, inclined input coupler is protected, 3, inclined gain fibre is protected, 4, protect inclined directional coupler, 5, protect inclined circulator, 6, saturable absorbing mirror, 7, three port polarization-maintaining coupler, 8, protect inclined passive fiber, 9, saturable absorber, 10, first protecting inclined isolator, 11, second protects inclined isolator.
Detailed description of the invention
Below in conjunction with accompanying drawing, the invention will be further described:
As it is shown in figure 1, embodiment 1
A kind of 2 inclined mixed mode-locking ultrashort pulse fiber lasers of micron waveband all risk insurance adopt figure of eight cavity configuration as shown in Figure 1, specifically include that centre wavelength 1570nm, output 1W single mode erbium-ytterbium co-doped fiber laser instrument as laser pumping source 1；Partial wave division multiplexer 2 is protected as the 1570/2000nm protecting inclined input coupler；Bais single-mode list covering Tm Ho co doped fiber 3 is as gain media；50:50 protects inclined directional coupler 4；Protect inclined circulator 5；Modulation depth is the semiconductor saturable absorbing mirror 6 of 20%；1*2 structure, splitting ratio are the fiber coupler 7 of 30:70；PM-1950 passive fiber 8.Wherein: centre wavelength 1570nm, the outfan of the single mode erbium-ytterbium co-doped fiber laser instrument 1 of output 1W connects 1570/2000nm and protects the input a of partial wave division multiplexer 2, the outfan b of 1570/2000nm guarantor's partial wave division multiplexer 2 connects bais single-mode list covering thulium holmium and is co-doped with one end of gain fibre 3, protect the input c that inclined thulium holmium is co-doped with the other end connection 50:50 inclined directional coupler 4 of guarantor of gain fibre 3, 50:50 protects the coupled end e of straight-through outfan d connection 1570/2000nm guarantor's partial wave division multiplexer 2 of inclined directional coupler 4, 50:50 protects the coupled output f of inclined directional coupler 4 and connects the input g protecting inclined circulator 5, the fiber-optic output of semiconductor saturable absorbing mirror 6 connects the common port i protecting inclined circulator 5, the outfan h protecting inclined circulator 5 connects the input j of 30:70 tri-port polarization-maintaining coupler 7, the outfan of 30:70 polarization-maintaining coupler 7 has two-way, one tunnel is connected with the second input n protecting inclined isolator 11 as the outfan l of mode-locked ultrashort pulse laser pulse, this part accounts for 30%, another outfan k and 50:50 protects the isolation end m of inclined directional coupler 4 and is connected, this part accounts for 70%, wherein it is attached each through PM-1950 passive fiber 8 between each parts.So just achieve 2 micron wavebands, all risk insurance partially, the output of mixed mode-locking, ultra-short pulse laser.
Embodiment 2
A kind of 2 inclined mixed mode-locking ultrashort pulse fiber lasers of micron waveband all risk insurance adopt figure of eight cavity configuration as shown in Figure 2, specifically include that centre wavelength 793nm, and output is that the laser instrument of 5W is as laser pumping source 1；793/2000nm as pump light bundling device protects inclined bundling device 2；Guarantor as gain media mixes thulium gain fibre 3 partially；50:50 protects inclined directional coupler 4；Graphene saturable absorber 9, wherein, polymethyl methacrylate (PMMA) is coated on the Graphene thin layer of copper substrate by available spin-coating method, it is subsequently placed in ammonium persulfate aqueous solution and eliminates copper substrate formation polymethyl methacrylate/Graphene heap, with optical fiber contact pins, it is caught, it is clipped in after drying in an oven between two wire jumper heads, and makes fixing for wire jumper head ring flange；First protects inclined isolator 10；Second protects inclined isolator 11；Splitting ratio is the three port polarization-maintaining couplers 7 of 30:70；PM2000 protects inclined passive fiber 8；Described centre wavelength 793nm, output is the laser instrument 1 pumping input a as the outfan connection inclined bundling device 2 of guarantor of laser pumping source of 5W, the outfan b protecting inclined bundling device 2 connects the one end mixing thulium gain fibre 3, the other end mixing thulium gain fibre 3 connects the input c of the 50:50 inclined directional coupler 4 of guarantor, 50:50 protects the straight-through outfan d of inclined directional coupler 4 and connects the coupled end e protecting inclined bundling device 2, 50:50 protects the optic fibre input end o of the coupled output f connection Graphene saturable absorber 9 of inclined directional coupler 4, the fiber-optic output p of Graphene saturable absorber 9 connects the input q of the first inclined isolator 10 of guarantor, the first outfan r protecting inclined isolator 10 connects the input j of 30:70 tri-port polarization-maintaining coupler 7, the outfan of the polarization-maintaining coupler 7 of 30:70 has two-way, one tunnel is connected with the second input n protecting inclined isolator 11 as the outfan l of mode-locked ultrashort pulse laser pulse, another fiber-optic output k and the isolation end m protecting inclined directional coupler 4 is connected, wherein protect inclined passive fiber 8 each through PM2000 between each parts to be attached.So just achieve 2 micron wavebands, all risk insurance partially, the output of ultra-short pulse laser.
The above embodiment is interpreted as being merely to illustrate the present invention rather than limiting the scope of the invention.After having read the content of record of the present invention, the present invention can be made various changes or modifications by technical staff, and these equivalence changes and modification fall into the scope of the claims in the present invention equally.
Claims (10)
1. the inclined mixed mode-locking ultrashort pulse fiber laser of micron waveband all risk insurance, it is characterised in that: include the laser pumping source for producing laser (1), for the inclined input coupler of the guarantor (2) that pumping laser is coupled in resonator cavity, for produce 2 microns of Output of lasers the inclined gain fibre of guarantor (3), for optical signal carried out branch and close the inclined directional coupler of the guarantor (4) on road, mixed mode-locking absorption plant, for the three port polarization-maintaining couplers (7) that power is allocated and protect inclined passive fiber (8)；Wherein,
The outfan of described laser pumping source (1) connects the pumping input a protecting inclined input coupler (2), the outfan b protecting inclined input coupler (2) connects the one end protecting inclined gain fibre (3), the other end protecting inclined gain fibre (3) connects the input c protecting inclined directional coupler (4), the straight-through outfan d protecting inclined directional coupler (4) connects mixed mode-locking absorption plant, the outfan of mixed mode-locking absorption plant connects the input j of three port polarization-maintaining couplers (7), the outfan of three port polarization-maintaining couplers (7) has two-way, one tunnel is as the outfan l of mode-locked ultrashort pulse laser pulse, outfan l connects the input n of the second inclined isolator of guarantor (11), another road is connected as outfan k and the isolation end m protecting inclined directional coupler (4), wherein it is attached each through the inclined passive fiber of guarantor (8) between each parts.
2. want the inclined mixed mode-locking ultrashort pulse fiber laser of one 2 micron waveband all risk insurance described in 1 according to right, it is characterized in that: described mixed mode-locking absorption plant includes: figure of eight chamber, for the saturable absorber (9) of locked mode or saturable absorbing mirror (6), when mixed mode-locking absorption plant is saturable absorber (9), between described saturable absorber (9) and three port polarization-maintaining couplers (7), it is additionally provided with the first inclined isolator of guarantor；When mixed mode-locking absorption plant is saturable absorbing mirror (6), between described saturable absorbing mirror (6) and three port polarization-maintaining couplers (7), it is additionally provided with the first inclined isolator of guarantor protects inclined circulator (5).
3. want the inclined mixed mode-locking ultrashort pulse fiber laser of one 2 micron waveband all risk insurance described in 2 according to right, it is characterised in that: the single mode erbium-ytterbium co-doped fiber laser instrument of wavelength 1570nm, output 1W centered by the lasing light emitter of described laser pumping source (1).
4. the inclined mixed mode-locking ultrashort pulse fiber laser of one 2 micron waveband all risk insurance described in 1 or 2 or 3 is wanted according to right, it is characterised in that: the rare earth doping elements of the inclined gain fibre of described guarantor (3) is that thulium or holmium or thulium holmium are co-doped with.
5. the inclined mixed mode-locking ultrashort pulse fiber laser of one 2 micron waveband all risk insurance described in 1 or 2 or 3 is wanted according to right, it is characterized in that: the inclined passive fiber of described guarantor (8) adopts and includes being exclusively used in the PM1950 optical fiber propagating 2 mum laser and PM2000 optical fiber, and between each parts, all adopt the mode that fibre core aligns directly fused together by protecting inclined heat sealing machine.
6. the inclined mixed mode-locking ultrashort pulse fiber laser of one 2 micron waveband all risk insurance described in 2 or 3 is wanted according to right, it is characterised in that: described saturable absorbing mirror (6) is semiconductor saturable absorbing mirror, one in CNT saturable absorbing mirror, Graphene saturable absorbing mirror, graphene oxide saturable absorbing mirror and topological insulator saturable absorbing mirror.
7. the inclined mixed mode-locking ultrashort pulse fiber laser of one 2 micron waveband all risk insurance described in 2 or 3 is wanted according to right, it is characterised in that: described saturable absorber (9) is semiconductor saturable absorber, one in CNT saturable absorber, Graphene saturable absorber, graphene oxide saturable absorber and topological insulator saturable absorber.
8. the inclined mixed mode-locking ultrashort pulse fiber laser of one 2 micron waveband all risk insurance described in 1 or 2 or 3 is wanted according to right, it is characterised in that: protecting inclined input coupler (2) can be protect inclined bundling device or guarantor's partial wave division multiplexer.
9. want the inclined mixed mode-locking ultrashort pulse fiber laser of one 2 micron waveband all risk insurance described in 8 according to right, it is characterised in that: the inclined directional coupler of described guarantor (4) includes 50:50 and protects inclined directional coupler.
10. want the inclined mixed mode-locking ultrashort pulse fiber laser of one 2 micron waveband all risk insurance described in 1 according to right, it is characterized in that: the described second input n protecting inclined isolator (11) accounts for 30%, another outfan k and 50:50 protects the isolation end m of inclined directional coupler 4 and is connected and accounts for 70%.
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Cited By (11)
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| CN106451048A (en) * | 2016-11-03 | 2017-02-22 | 北京信息科技大学 | Fiber laser system capable of switching fundamental and second harmonic mode locking |
| CN106877126A (en) * | 2017-03-31 | 2017-06-20 | 佛山科学技术学院 | Compound cavity optical fibre laser and its method for realizing xenogenesis pulse format coherent modulation |
| CN107863673A (en) * | 2017-11-21 | 2018-03-30 | 北京工业大学 | A kind of full polarization fibre pulse laser based on nonlinear optical loop mirror |
| WO2018102738A1 (en) * | 2016-12-01 | 2018-06-07 | Ipg Photonics Corporation | High-power, rare-earth-doped crystal amplifier based on ultra-low-quantum-defect pumping scheme utilizing single or low-mode fiber lasers |
| CN109449735A (en) * | 2018-12-24 | 2019-03-08 | 重庆邮电大学 | A kind of mixed mode-locking thulium-doped fiber laser |
| CN112615240A (en) * | 2020-12-03 | 2021-04-06 | 重庆邮电大学 | Device and method for generating multi-pulse fiber laser |
| CN113206425A (en) * | 2021-04-12 | 2021-08-03 | 中国科学院上海光学精密机械研究所 | Dissipative soliton resonance fiber laser based on hybrid mode locking |
| US20210367392A1 (en) * | 2020-05-19 | 2021-11-25 | Cybel, LLC. | Broaband hybrid optical amplifier operation in eye-safe wavelength region |
| CN113937608A (en) * | 2021-10-13 | 2022-01-14 | 重庆邮电大学 | Integrated semiconductor laser side pumping module |
| US20220181837A1 (en) * | 2020-12-09 | 2022-06-09 | Cybel, LLC. | Polarization-Maintaining Fiber Laser Tunable Over Two Micron Region |
| CN117578173A (en) * | 2023-10-27 | 2024-02-20 | 北京大学长三角光电科学研究院 | Full polarization-maintaining O-shaped ultrashort pulse mode-locked fiber laser |
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