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    Journals >Chinese Journal of Lasers >Volume 48 >Issue 4 >Page 0401004 > Article
    • Chinese Journal of Lasers
    • Vol. 48, Issue 4, 0401004 (2021)
    High-Power Ytterbium-Doped Fiber Laser Oscillator: Current Situation and Future Developments
    Xiaolin Wang1,2,3,*, Hanwei Zhang1,2,3, Baolai Yang1,2,3, Xiaoming Xi1,2,3..., Peng Wang1,2,3, Chen Shi1,2,3, Zefeng Wang1,2,3, Pu Zhou1,2,3,*, Xiaojun Xu1,2,3,** and Jinbao Chen1,2,3|Show fewer author(s)
    Author Affiliations
  • 1College of Advanced Interdisciplinary Studies, National University of Defense Technology, Changsha, Hunan 410073, China
  • 2State Key Laboratory of Pulsed Power Laser Technology, Changsha, Hunan 410073, China
  • 3Hunan Provincial Key Laboratory of High Energy Laser Technology, Changsha, Hunan 410073, China
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    DOI: 10.3788/CJL202148.0401004 Cite this Article Set citation alerts
    Xiaolin Wang, Hanwei Zhang, Baolai Yang, Xiaoming Xi, Peng Wang, Chen Shi, Zefeng Wang, Pu Zhou, Xiaojun Xu, Jinbao Chen. High-Power Ytterbium-Doped Fiber Laser Oscillator: Current Situation and Future Developments[J]. Chinese Journal of Lasers, 2021, 48(4): 0401004 Copy Citation Text show less
    Experimental setup of the 17.5 kW laser oscillator with spatial configuration[6]
    Fig. 1. Experimental setup of the 17.5 kW laser oscillator with spatial configuration[6]
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    Output power and beam quality of 17.5 kW laser oscillator with spatial configuration[6]. (a) Pump power versus output power; (b) beam quality measurement results
    Fig. 2. Output power and beam quality of 17.5 kW laser oscillator with spatial configuration[6]. (a) Pump power versus output power; (b) beam quality measurement results
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    Experiment setup of the spatial configured laser oscillator based on gain fiber with fiber grating[25]
    Fig. 3. Experiment setup of the spatial configured laser oscillator based on gain fiber with fiber grating[25]
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    Experimental results of the spatial configured laser oscillator based on gain fiber with fiber grating[25]. (a) Spectra in different power; (b) center wavelength in different power
    Fig. 4. Experimental results of the spatial configured laser oscillator based on gain fiber with fiber grating[25]. (a) Spectra in different power; (b) center wavelength in different power
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    Experimental setup of 6 kW all-fiber laser oscillator[24]
    Fig. 5. Experimental setup of 6 kW all-fiber laser oscillator[24]
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    Experimental results of 6 kW all-fiber laser oscillator[24]. (a) Power and efficiency curve; (b) output spectrum; (c) output beam profile
    Fig. 6. Experimental results of 6 kW all-fiber laser oscillator[24]. (a) Power and efficiency curve; (b) output spectrum; (c) output beam profile
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    5 kW all-fiber laser oscillator based on fs laser written fiber grating[26]. (a) Experimental setup; (b) spectrum of the fiber gratings
    Fig. 7. 5 kW all-fiber laser oscillator based on fs laser written fiber grating[26]. (a) Experimental setup; (b) spectrum of the fiber gratings
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    Experimental results of 5 kW all-fiber laser oscillator based on fs laser written fiber grating[26]. (a) Power and beam profile; (b) output spectrum
    Fig. 8. Experimental results of 5 kW all-fiber laser oscillator based on fs laser written fiber grating[26]. (a) Power and beam profile; (b) output spectrum
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    Experimental setup of the 8 kW all-fiber laser oscillator[7]
    Fig. 9. Experimental setup of the 8 kW all-fiber laser oscillator[7]
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    Experimental results of the 8 kW all-fiber laser oscillator[7]. (a) Spectrum in different power; (b) beam quality in 8 kW
    Fig. 10. Experimental results of the 8 kW all-fiber laser oscillator[7]. (a) Spectrum in different power; (b) beam quality in 8 kW
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    Relationship between output power and time domain normalized STD in fiber amplifier and fiber oscillator[9]
    Fig. 11. Relationship between output power and time domain normalized STD in fiber amplifier and fiber oscillator[9]
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    Beam profile of ring laser employing fiber laser oscillator. (a) Beam profile of 3 kW ring laser from Shanghai FeiBo laser Technologies Co. Led.[61]; (b) beam profile of 5 kW ring laser from NUDT
    Fig. 12. Beam profile of ring laser employing fiber laser oscillator. (a) Beam profile of 3 kW ring laser from Shanghai FeiBo laser Technologies Co. Led.[61]; (b) beam profile of 5 kW ring laser from NUDT
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    Experiment results of fiber laser in short wavelength. (a) Output power of different wavelengths; (b) spectrum of 1018 nm laser
    Fig. 13. Experiment results of fiber laser in short wavelength. (a) Output power of different wavelengths; (b) spectrum of 1018 nm laser
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    Experiment results of fiber laser before and after optimizing of pump wavelength. (a) Output power and efficiency at 976 nm wavelength; (b) output power and efficiency at optimized pump wavelength
    Fig. 14. Experiment results of fiber laser before and after optimizing of pump wavelength. (a) Output power and efficiency at 976 nm wavelength; (b) output power and efficiency at optimized pump wavelength
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    Spindly gain fiber. (a) With variable core-to-cladding diameter ratio; (b) with invariable core-to-cladding diameter ratio
    Fig. 15. Spindly gain fiber. (a) With variable core-to-cladding diameter ratio; (b) with invariable core-to-cladding diameter ratio
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    Experimental results of laser oscillator employing spindly gain fiber laser with constant core-to-cladding diameter ratio. (a) Output power and efficiency; (b) beam quality in different power
    Fig. 16. Experimental results of laser oscillator employing spindly gain fiber laser with constant core-to-cladding diameter ratio. (a) Output power and efficiency; (b) beam quality in different power
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    Output laser beam patterns of laser oscillator based on high-order mode reflected fiber grating. (a) LP11o mode;(b) LP21e mode
    Fig. 17. Output laser beam patterns of laser oscillator based on high-order mode reflected fiber grating. (a) LP11o mode;(b) LP21e mode
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    Technical proposal of 10 kW level high power fiber laser oscillator
    Fig. 18. Technical proposal of 10 kW level high power fiber laser oscillator
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    YearInstitutionTypeφ or AeffNAPower/kWBeam qualityReference
    2012Alfalight, USAAll fiberφ=20 μm0.0651.0M2≈1.2Ref. [10]
    2014Coherent, USASpatialAeff=800 μm20.0483.0M2<1.15Ref. [11]
    2014NUDT, ChinaAll fiberφ=20 μm0.0651.5M2<1.2Ref. [12]
    2015TJU, ChinaAll fiberφ=20 μm0.0651.6M2<1.1Ref. [13]
    2015Fujikura, JapanAll fiberAeff=400 μm20.072.0M2=1.2Ref. [14]
    2016NUDT, ChinaAll fiberφ=20 μm0.0652.5M2≈1.2Ref. [15]
    2018TJU, ChinaAll fiberφ=20 μm0.0652.0M2≈1.5Ref. [16]
    2017NUDT, ChinaAll fiberφ=20 μm0.0653M2≈1.3Ref. [17-18]
    2017SUS Tech, ChinaAll fiberφ=20 μm0.0652M2<1.2Ref. [19]
    2017Fujikura, JapanAll fiberAeff=400 μm20.073M2≈1.3Ref. [20]
    2017NUDT, ChinaAll fiberφ=25 μm—4M2≈2.2Ref. [21]
    2018NUDT, ChinaAll fiberφ=25 μm(GT Wave)—3.96M2≈2.0Ref. [22]
    2018Fujikura, JapanAll fiberAeff=600 μm2—5M2≈1.3Ref. [4]
    2018NUDT, ChinaAll fiberφ=25 μm0.0655.2M2≈1.7Ref. [3,23]
    2019Universität Jena, GermanyAll fiberφ=20 μm0.064.8M2≈1.3Ref. [8]
    2019NUDT, ChinaAll fiberAeff=600 μm2—6.06M2≈2.6Ref. [24]
    2019Laserline GmbH, GermanySpatialφ=50--90 μm0.1117.5BPP: 8 mm·mradRef. [6]
    2020Fraunhofer Institute for LT,GermanySpatialφ<100 μm—8.113—Ref. [25]
    2020Universität Jena, GermanyAll fiberφ=20 μm0.075M2≈1.3Ref. [26]
    2020Fujikura, JapanAll fiberAeff=600 μm2—8BPP: 0.5 mm·mradRef. [7]
    Table 1. Typical research results of high power all-fiber laser oscillators
    YearCompanyPump schemeφ /μmPower /kWBeam qualityReference
    2010CoreLase, Finland976 nm LD pump201M2<1.6Ref. [29]
    2015Maxphotonics, China——1.5M2<1.3Ref. [28]
    2015CoreLase, Finland976 nm LD pump202M2<1.6Ref. [29]
    2018GW laser, China976 nm LD pump203M2<1.3Ref. [36-37]
    2018DK laser, China——3M2<1.3Ref. [33]
    2018FeiBo laser, ChinaLD pump—3Ring laserRef. [32]
    2019Lumentum, USA915 nm LD pump—4.2BPP: 1.5 mm·mradRef. [30]
    2019GW laserLD pump—4Single modeRef. [36]
    2019Reci laser, ChinaLD pump—4Single modeRef. [35]
    2019FeiBo laser, ChinaLD pump—4Ring laserRef. [31]
    Table 2. Typical products of high power all-fiber laser oscillator in some company
    YearInstitutionPump schemeFiber typePowerBeam qualityReference
    2009IPG photonics, USATandem pumpDCF10M2≈1.3Ref. [28]
    2015NUDT, ChinaLD pump30/400 μm DCF4.1M2≈2.1Ref. [41]
    2016Universität Jena, GermanyLD pump23/460 μm DCF4.3M2≈1.27Ref. [42]
    2016Xi'an IOPM, ChinaLD pump30/600 μm DCF4.62M2≈1.67Ref. [43]
    2016Huazhong UST, ChinaLD pump25/400 μm DCF3.5M2≈1.28Ref. [44]
    2016NUDT, ChinaTandem pumpDCF10β≈1.886Ref. [45]
    2016Tsinghua Unv., ChinaLD pumpDCF10—Ref. [46]
    2016CEAP, ChinaLD pumpGT Wave5M2≈2.2Ref. [47]
    2017TJU, ChinaLD pump30/600 μm DCF5.01M2<1.8Ref. [48]
    2017CEAP, ChinaLD pump30 μm DCF6.03M2<2.38Ref. [49]
    2018CEAP, ChinaLD pump30/520 μm PIFL10.45—Ref. [38]
    2018CEAP, ChinaLD pump30/900 μm DCF10.6β<2Ref. [39]
    2019SIOM, ChinaLD pump30/600 μm DCF10—Ref. [40]
    2019Raycuslaser, ChinaLD pump—3—Ref. [34,50]
    2019Scyglight, ChinaLD pump—3Single modeRef. [51]
    2019JPT laser, ChinaLD pump—4Single modeRef. [34]
    2019Maxphotonics, ChinaLD pump—5BPP: 1.8~3.0 mm·mardRef. [52]
    2019Raypower Laser, China——5Single modeRef. [53]
    2019DK laser, China——5M2≈1.8Ref. [33,54]
    2020DK laser, China——6M2<2Ref. [55]
    Table 3. Research and industry status of high power all-fiber laser amplifiers
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    Xiaolin Wang, Hanwei Zhang, Baolai Yang, Xiaoming Xi, Peng Wang, Chen Shi, Zefeng Wang, Pu Zhou, Xiaojun Xu, Jinbao Chen. High-Power Ytterbium-Doped Fiber Laser Oscillator: Current Situation and Future Developments[J]. Chinese Journal of Lasers, 2021, 48(4): 0401004
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