高功率掺镱光纤振荡器: 研究现状与发展趋势 下载: 2879次
High-Power Ytterbium-Doped Fiber Laser Oscillator: Current Situation and Future Developments
王小林 1,2,3,*张汉伟 1,2,3杨保来 1,2,3奚小明 1,2,3王鹏 1,2,3史尘 1,2,3王泽锋 1,2,3周朴 1,2,3,*许晓军 1,2,3,**陈金宝 1,2,3
1 国防科技大学前沿交叉学科学院, 湖南 长沙 410073
2 脉冲功率激光技术国家重点实验室, 湖南 长沙 410073
3 高能激光技术湖南省重点实验室, 湖南 长沙 410073
图 & 表
图 1. 17.5 kW空间结构光纤振荡器实验结构[6]
Fig. 1. Experimental setup of the 17.5 kW laser oscillator with spatial configuration[6]
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图 2. 17.5 kW空间结构光纤振荡器输出功率与光束质量[6]。(a) 泵浦功率-输出功率曲线;(b) 光束质量测试结果
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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图 3. 基于增益光纤刻写光纤光栅的空间结构光纤振荡器实验结构[25]
Fig. 3. Experiment setup of the spatial configured laser oscillator based on gain fiber with fiber grating[25]
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图 4. 基于增益光纤刻写光纤光栅的空间结构光纤振荡器实验结果[25]。(a) 不同功率时输出光谱;(b) 不同功率时的中心波长
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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图 5. 6 kW全光纤振荡器实验结构[24]
Fig. 5. Experimental setup of 6 kW all-fiber laser oscillator[24]
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图 6. 6 kW全光纤振荡器实验结果[24]。(a)功率效率曲线;(b)输出光谱;(c)输出光斑特性
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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图 7. 基于飞秒激光器刻写光栅的5 kW全光纤振荡器[26]。(a)实验结构;(b)光栅光谱特性
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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图 8. 基于飞秒激光器刻写光栅的5 kW全光纤振荡器实验结果[26]。(a)功率与光斑;(b)输出光谱
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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图 9. 8 kW全光纤振荡器实验结构[7]
Fig. 9. Experimental setup of the 8 kW all-fiber laser oscillator[7]
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图 10. 8 kW全光纤振荡器实验结果[7]。(a)不同功率输出光谱特性;(b) 8 kW时光束质量特性
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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图 11. 光纤振荡器和放大器中时域归一化均方差与输出功率的关系[9]
Fig. 11. Relationship between output power and time domain normalized STD in fiber amplifier and fiber oscillator[9]
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图 12. 基于光纤振荡器的环形光斑激光器光斑形态。(a)飞博激光,3 kW环形激光光斑形态[61];(b)国防科技大学,5 kW环形激光光斑形态
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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图 13. 短波光纤激光器实验结果。(a)不同波长输出功率;(b) 1018 nm激光光谱
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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图 14. 优化泵浦波长前后光纤激光器实验结果。(a) 976 nm波长泵浦时输出激光功率和效率;(b)优化泵浦波长泵浦时输出激光功率和效率
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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图 15. 纺锤形增益光纤。(a)纤芯包层比变化;(b)纤芯包层比固定不变
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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图 16. 基于纤芯包层比固定不变纺锤形光纤振荡器的实验结果。(a)输出功率和效率;(b)不同功率的光束质量
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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图 17. 基于高阶模反射光纤光栅振荡器的输出激光光斑形态。(a)LP11o模;(b)LP21e模
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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图 18. 10 kW级高功率光纤振荡器技术方案
Fig. 18. Technical proposal of 10 kW level high power fiber laser oscillator
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表 1高功率全光纤振荡器典型研究结果
Table1. Typical research results of high power all-fiber laser oscillators
Year | Institution | Type | φ or Aeff | NA | Power/kW | Beam quality | Reference |
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2012 | Alfalight, USA | All fiber | φ=20 μm | 0.065 | 1.0 | M2≈1.2 | Ref. [10] | 2014 | Coherent, USA | Spatial | Aeff=800 μm2 | 0.048 | 3.0 | M2<1.15 | Ref. [11] | 2014 | NUDT, China | All fiber | φ=20 μm | 0.065 | 1.5 | M2<1.2 | Ref. [12] | 2015 | TJU, China | All fiber | φ=20 μm | 0.065 | 1.6 | M2<1.1 | Ref. [13] | 2015 | Fujikura, Japan | All fiber | Aeff=400 μm2 | 0.07 | 2.0 | M2=1.2 | Ref. [14] | 2016 | NUDT, China | All fiber | φ=20 μm | 0.065 | 2.5 | M2≈1.2 | Ref. [15] | 2018 | TJU, China | All fiber | φ=20 μm | 0.065 | 2.0 | M2≈1.5 | Ref. [16] | 2017 | NUDT, China | All fiber | φ=20 μm | 0.065 | 3 | M2≈1.3 | Ref. [17-18] | 2017 | SUS Tech, China | All fiber | φ=20 μm | 0.065 | 2 | M2<1.2 | Ref. [19] | 2017 | Fujikura, Japan | All fiber | Aeff=400 μm2 | 0.07 | 3 | M2≈1.3 | Ref. [20] | 2017 | NUDT, China | All fiber | φ=25 μm | — | 4 | M2≈2.2 | Ref. [21] | 2018 | NUDT, China | All fiber | φ=25 μm(GT Wave) | — | 3.96 | M2≈2.0 | Ref. [22] | 2018 | Fujikura, Japan | All fiber | Aeff=600 μm2 | — | 5 | M2≈1.3 | Ref. [4] | 2018 | NUDT, China | All fiber | φ=25 μm | 0.065 | 5.2 | M2≈1.7 | Ref. [3,23] | 2019 | Universität Jena, Germany | All fiber | φ=20 μm | 0.06 | 4.8 | M2≈1.3 | Ref. [8] | 2019 | NUDT, China | All fiber | Aeff=600 μm2 | — | 6.06 | M2≈2.6 | Ref. [24] | 2019 | Laserline GmbH, Germany | Spatial | φ=50--90 μm | 0.11 | 17.5 | BPP: 8 mm·mrad | Ref. [6] | 2020 | Fraunhofer Institute for LT,Germany | Spatial | φ<100 μm | — | 8.113 | — | Ref. [25] | 2020 | Universität Jena, Germany | All fiber | φ=20 μm | 0.07 | 5 | M2≈1.3 | Ref. [26] | 2020 | Fujikura, Japan | All fiber | Aeff=600 μm2 | — | 8 | BPP: 0.5 mm·mrad | Ref. [7] |
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表 2部分厂家光纤振荡器产品
Table2. Typical products of high power all-fiber laser oscillator in some company
Year | Company | Pump scheme | φ /μm | Power /kW | Beam quality | Reference |
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2010 | CoreLase, Finland | 976 nm LD pump | 20 | 1 | M2<1.6 | Ref. [29] | 2015 | Maxphotonics, China | — | — | 1.5 | M2<1.3 | Ref. [28] | 2015 | CoreLase, Finland | 976 nm LD pump | 20 | 2 | M2<1.6 | Ref. [29] | 2018 | GW laser, China | 976 nm LD pump | 20 | 3 | M2<1.3 | Ref. [36-37] | 2018 | DK laser, China | — | — | 3 | M2<1.3 | Ref. [33] | 2018 | FeiBo laser, China | LD pump | — | 3 | Ring laser | Ref. [32] | 2019 | Lumentum, USA | 915 nm LD pump | — | 4.2 | BPP: 1.5 mm·mrad | Ref. [30] | 2019 | GW laser | LD pump | — | 4 | Single mode | Ref. [36] | 2019 | Reci laser, China | LD pump | — | 4 | Single mode | Ref. [35] | 2019 | FeiBo laser, China | LD pump | — | 4 | Ring laser | Ref. [31] |
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表 3光纤放大器研究与产业现状
Table3. Research and industry status of high power all-fiber laser amplifiers
Year | Institution | Pump scheme | Fiber type | Power | Beam quality | Reference |
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2009 | IPG photonics, USA | Tandem pump | DCF | 10 | M2≈1.3 | Ref. [28] | 2015 | NUDT, China | LD pump | 30/400 μm DCF | 4.1 | M2≈2.1 | Ref. [41] | 2016 | Universität Jena, Germany | LD pump | 23/460 μm DCF | 4.3 | M2≈1.27 | Ref. [42] | 2016 | Xi'an IOPM, China | LD pump | 30/600 μm DCF | 4.62 | M2≈1.67 | Ref. [43] | 2016 | Huazhong UST, China | LD pump | 25/400 μm DCF | 3.5 | M2≈1.28 | Ref. [44] | 2016 | NUDT, China | Tandem pump | DCF | 10 | β≈1.886 | Ref. [45] | 2016 | Tsinghua Unv., China | LD pump | DCF | 10 | — | Ref. [46] | 2016 | CEAP, China | LD pump | GT Wave | 5 | M2≈2.2 | Ref. [47] | 2017 | TJU, China | LD pump | 30/600 μm DCF | 5.01 | M2<1.8 | Ref. [48] | 2017 | CEAP, China | LD pump | 30 μm DCF | 6.03 | M2<2.38 | Ref. [49] | 2018 | CEAP, China | LD pump | 30/520 μm PIFL | 10.45 | — | Ref. [38] | 2018 | CEAP, China | LD pump | 30/900 μm DCF | 10.6 | β<2 | Ref. [39] | 2019 | SIOM, China | LD pump | 30/600 μm DCF | 10 | — | Ref. [40] | 2019 | Raycuslaser, China | LD pump | — | 3 | — | Ref. [34,50] | 2019 | Scyglight, China | LD pump | — | 3 | Single mode | Ref. [51] | 2019 | JPT laser, China | LD pump | — | 4 | Single mode | Ref. [34] | 2019 | Maxphotonics, China | LD pump | — | 5 | BPP: 1.8~3.0 mm·mard | Ref. [52] | 2019 | Raypower Laser, China | — | — | 5 | Single mode | Ref. [53] | 2019 | DK laser, China | — | — | 5 | M2≈1.8 | Ref. [33,54] | 2020 | DK laser, China | — | — | 6 | M2<2 | Ref. [55] |
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王小林, 张汉伟, 杨保来, 奚小明, 王鹏, 史尘, 王泽锋, 周朴, 许晓军, 陈金宝. 高功率掺镱光纤振荡器: 研究现状与发展趋势[J]. 中国激光, 2021, 48(4): 0401004. 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.