High-power multi-core fiber lasers: progress and prospects

Yan Yuefang; Feng Xi; Liu Chenxu; Qin Yu; Li Min; Liu Yu; Zhou Hongbing; Tao Rumao; Lin Honghuan; Wang Jianjun; Peng Zhitao

doi:10.11884/HPLPB202638.260028

Article Contents

Article Navigation > High Power Laser and Particle Beams > 2026 > Accepted Manuscript

Yan Yuefang, Feng Xi, Liu Chenxu, et al. High-power multi-core fiber lasers: progress and prospects[J]. High Power Laser and Particle Beams. doi: 10.11884/HPLPB202638.260028

Citation:

Yan Yuefang, Feng Xi, Liu Chenxu, et al. High-power multi-core fiber lasers: progress and prospects[J]. High Power Laser and Particle Beams. doi: 10.11884/HPLPB202638.260028

Yan Yuefang, Feng Xi, Liu Chenxu, et al. High-power multi-core fiber lasers: progress and prospects[J]. High Power Laser and Particle Beams. doi: 10.11884/HPLPB202638.260028

Citation:

Yan Yuefang, Feng Xi, Liu Chenxu, et al. High-power multi-core fiber lasers: progress and prospects[J]. High Power Laser and Particle Beams. doi: 10.11884/HPLPB202638.260028

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High-power multi-core fiber lasers: progress and prospects

doi: 10.11884/HPLPB202638.260028

Laser Fusion Research Center, CAEP, Mianyang 621900, China

Received Date: 2026-01-25
Accepted Date: 2026-04-21
Rev Recd Date: 2026-04-28

Available Online: 2026-05-07

Abstract

Abstract

Background
Multicore Fiber (MCF) laser technology has the potential to achieve power exceeding 100 kilowatts in the continuous wave domain, nearly 100 kilowatts average power in the nanosecond domain, hundreds of millijoule pulse energy in the femtosecond domain, and tens of kilowatts average power and hundreds of millijoule pulse energy in the picosecond domain. It is a highly promising frontier research direction in the field of high-power lasers and is one of the important future development directions of high-power fiber lasers.
Purpose
This article systematically reviews the latest research progress and development prospects of high-power MCF laser technology, focusing on the breakthroughs in high-power MCF laser technology covering spatial structure and all-fiber structure in recent years.
Methods
It analyzes the current limitations and development routes of MCF lasers.
Results
And finally this article summarizes and looks forward to the future development direction of MCF laser technology.
Conclusions
Despite the challenges that lie ahead, this technological pathway clearly indicates that MCF technology currently represents the most promising approach for achieving order-of-magnitude performance improvements in fiber laser systems. As such, MCF is poised to become the core laser source for meeting future extreme power demands, ushering in a new era of high-energy laser applications.
- multi-core fiber,
- gain amplification,
- coherent beam combination

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References(124)

References

[1]	Zervas M N, Codemard C A. High Power Fiber Lasers: A Review[J]. IEEE J Sel Top Quantum Electron, 2014, 20(5): 23.
[2]	Naeem M. Advances in Drilling with Fiber Lasers; proceedings of the 4th Industrial Laser Applications Symposium (ILAS), Kenilworth, ENGLAND, F Mar 17-18, 2015 [C]. Spie-Int Soc Optical Engineering: BELLINGHAM, 2015.
[3]	Clery D. Laser Fusion, with a Difference[J]. Science, 2015, 347(6218): 111-2.
[4]	Shi W, Schulzgen A, Amezcua R, et al. Fiber Lasers and Their Applications: Introduction[J]. J Opt Soc Am B-Opt Phys, 2017, 34(3): FLA1-FLA.
[5]	杨昌盛, 徐善辉, 周军, 等. 大功率光纤激光材料与器件关键技术研究进展[J]. 中国科学: 技术科学, 2017, 47: 1038-48 Yang Changsheng, Xu Shanhui, Zhou Jun, et al. Research advance on the key technology of high-power fiber laser materials and components [J]. Sci Sin Tech, 2017, 47: 1038–1048
[6]	Zhou Pu, Huang Liangjin, Leng Jinyong, et al. High-Power Double-Cladding Fiber Lasers: A 30-Year Overview[J]. Scientia Sinica Technologica, 2020, 50(2): 123-35. doi: 10.1360/n092018-00409
[7]	肖起榕, 田佳丁, 李丹, 等. 级联泵浦高功率掺镱光纤激光器: 进展与展望[J]. 中国激光, 2021, 48: 66-86 Xiao Qirong, Tian jiading, Li Dan, et al. Tandem-Pumped High-Power Ytterbium-Doped Fiber Lasers: Progress and Opportunities [J]. Chinese Journal of Lasers, 2021, 48: 66-86
[8]	Zhang Liang, Zhang Jilin, Pang Fufei, et al. Transient Replica Symmetry Breaking in Brillouin Random Fiber Lasers[J]. PhotoniX, 2023, 4(1): 33. doi: 10.1186/s43074-023-00107-2
[9]	李灿, 任博, 郭琨, 等. 基于增益管理非线性的超快光纤激光放大研究进展(特邀)[J]. 红外与激光工程, 2025, 54(1): 20240438 Li Can, Ren Bo, Guo Kun, et al. Research progress of ultrafast fiber laser amplifier based on gain managed nonlinearity (invited)[J]. Infrared and Laser Engineering, 2025, 54(1): 20240438. )
[10]	Zhu Jiajian, Zhou Pu, Ma Yanxing, et al. Power Scaling Analysis of Tandem-Pumped Yb-Doped Fiber Lasers and Amplifiers[J]. Opt Express, 2011, 19(19): 18645-54. doi: 10.1364/OE.19.018645
[11]	Tao Rumao. , Wang Xiaolin. , Zhou Pu. Comprehensive Theoretical Study of Mode Instability in High-Power Fiber Lasers by Employing a Universal Model and Its Implications [J]. IEEE J Sel Top Quantum Electron, 2018, 24(3): 19.
[12]	Zervas M N. Transverse Mode Instability, Thermal Lensing and Power Scaling in Yb³⁺-Doped High-Power Fiber Amplifiers[J]. Opt Express, 2019, 27(13): 19019-41. doi: 10.1364/OE.27.019019
[13]	王建军, 刘玙, 李敏, 等. 光纤激光模式不稳定研究十年回顾与展望[J]. 强激光与粒子束, 2020, 32: 121003 Wang Jianjun, Liu Yu, Li Min, et al. Ten-year review and prospect on mode instability research of fiber lasers [J]. High Power Laser and Particle Beams, 2020, 32: 121003
[14]	张春, 谢亮华, 楚秋慧, 等. 高功率光纤激光受激拉曼散射效应研究新进展[J]. 强激光与粒子束, 2022, 34: 021002 Zhang Chun, Xie Lianghua, Chu Qiuhui, et al. Research progress of stimulated Raman scattering effect in high power fiber lasers [J]. High Power Laser and Particle Beams, 2022, 34: 021002
[15]	周朴, 马鹏飞, 任帅, 等. 高功率窄线宽光纤激光的研究进展与发展趋势[J]. 信息对抗技术, 2023, 2(4/5): 16-36 Zhou Pu, Ma Pengfei, Ren Shuai, et al. High-power narrow linewidth fiber laser: progress and prospect[J]. Information Countermeasure Technology, 2023, 2(4/5): 16-36
[16]	Scharring S, Dreyer H, Wagner G, et al. Laramotions: A Conceptual Study on Laser Networks for near-Term Collision Avoidance for Space Debris in the Low Earth Orbit[J]. Appl Optics, 2021, 60(31): H24-H36. doi: 10.1364/AO.432160
[17]	Bayramian A, Aceves S, Anklam T, et al. Compact, Efficient Laser Systems Required for Laser Inertial Fusion Energy[J]. Fusion Sci Technol, 2011, 60(1): 28-48. doi: 10.13182/FST10-313
[18]	Rocca J J, Capeluto M G, Hollinger R C, et al. Ultra-Intense Femtosecond Laser Interactions with Aligned Nanostructures[J]. Optica, 2024, 11(3): 437-53. doi: 10.1364/OPTICA.510542
[19]	Leemans W, Esarey E. Laser-Driven Plasma-Wave Electron Accelerators[J]. PHYSICS TODAY, 2009, 62(3): 44-9. doi: 10.1063/1.3099645
[20]	Mourou G, Brocklesby B, Tajima T, et al. The Future Is Fibre Accelerators[J]. Nat Photonics, 2013, 7(4): 258-61. doi: 10.1038/nphoton.2013.75
[21]	王小林, 周朴, 粟荣涛, 等. 高功率光纤激光相干合成的现状、趋势与挑战[J]. 中国激光, 2017, 44: 9-34 Wang Xiaolin, Zhou Pu, Su Rongtao, et al. Current Situation, Tendency and Challenge of Coherent Combining of High Power Fiber Lasers [J]. Chinese Journal of Lasers, 2017, 44: 9-34
[22]	马毅, 颜宏, 孙殷宏, 等. 基于双光栅的光纤激光光谱合成关键技术研究进展(特邀)[J]. 红外与激光工程, 2018, 47(1): 103002-0103002(14 Ma Yi, Yan Hong, Sun Yinhong, et al. Recent progress of key technologies for spectral beam combining of fiber laser with dual-gratings configuration(Invited)[J]. Infrared and Laser Engineering, 2018, 47(1): 103002-0103002(14)
[23]	陈子伦, 周旋风, 王泽锋, 等. 高功率光纤激光器功率合束器的研究进展(特邀)[J]. 红外与激光工程, 2018, 47: 65-71 Chen Zilun, Zhou Xuanfeng, Wang Zefeng, et al. Review of all-fiber signal combiner for high power fiber lasers(Invited) [J]. Infrared and Laser Engineering, 2018, 47: 65-71
[24]	周朴, 常洪祥, 粟荣涛, 等. 光纤激光相干合成的研究历程与发展趋势: 基于文献引用的视角(特邀)[J]. 中国激光, 2024, 51(1): 0121002 Pu Zhou, Hongxiang Chang, Rongtao Su, et al. Research History and Prospects of Coherent Beam Combining of Fiber Lasers: From Perspective of Citations (Invited)[J]. Chinese Journal of Lasers, 2024, 51(1): 0121002
[25]	周朴, 粟荣涛, 李灿, 等. 高功率光纤激光的光束合成: 进展、动向与展望(特邀)[J]. 中国激光, 2024, 51(19): 1901003 Pu Zhou, Rongtao Su, Can Li, et al. Beam Combining of High Power Fiber Lasers: Progress, Trend and Prospects (Invited)[J]. Chinese Journal of Lasers, 2024, 51(19): 1901003
[26]	Klenke A, Seise E, Limpert J, et al. Basic Considerations on Coherent Combining of Ultrashort Laser Pulses[J]. Opt Express, 2011, 19(25): 25379-87. doi: 10.1364/OE.19.025379
[27]	闫玥芳, 陶汝茂, 刘玙, 等. 基于光纤合束器件的高功率全光纤相干合成技术研究进展与展望[J]. 强激光与粒子束, 2023, 35(4): 041005-1 Yan Yuefang, Tao Rumao, Liu Yu, et al. Research progress and prospect of high power all-fiber coherent beam combination based on fiber combining devices[J]. High Power Laser and Particle Beams, 2023, 35(4): 041005-1
[28]	周宏冰, 张昊宇, 李敏, 等. 大规模激光相干合成主动相位控制技术研究进展[J]. 强激光与粒子束, 2024, 36(6): 061001 Zhou Hongbing, Zhang Haoyu, Li Min, et al. Progress in active phase control for large-scale coherent laser beam combining [J]. High Power Laser and Particle Beams, 2024, 36(6): 061001
[29]	Liu Zejin, Ma Pengfei, Su Rongtao, et al. High-Power Coherent Beam Polarization Combination of Fiber Lasers: Progress and Prospect Invited[J]. J Opt Soc Am B-Opt Phys, 2017, 34(3): A7-A14. doi: 10.1364/JOSAB.34.0000A7
[30]	Fsaifes I, Daniault L, Bellanger S, et al. Coherent Beam Combining of 61 Femtosecond Fiber Amplifiers[J]. Opt Express, 2020, 28(14): 20152-61. doi: 10.1364/OE.394031
[31]	Michael M, Christopher A, Arno K, et al. 10.4 kW Coherently Combined Ultrafast Fiber Laser[J]. Opt Lett, 2020, 45(11): 3083-6. doi: 10.1364/OL.392843
[32]	吴坚, 马阎星, 马鹏飞, 等. 光纤激光相干合成20 kW级高功率输出[Z]. 红外与激光工程, 2021, 50: 381 Wu Jian, Ma Yanxing, Ma Pengfei, et al. Fiber Laser Coherent beam combination of 20 kW Class High Power Output [Z]. Infrared and Laser Engineering, 2021, 50: 381
[33]	常琦, 侯天悦, 邓宇, 等. 基于二维光场计算的400束规模激光相干合成[J]. 红外与激光工程, 2022, 51(5): 20220276 Chang Qi, Hou Tianyue, Deng Yu, et al. 400-beam-scale laser coherent combining based on two-dimensional optical field calculation [J]. Infrared and Laser Engineering, 2022, 51(5): 20220276
[34]	李雨薇, 刘玙, 谢亮华, 等. 全纤化相干合成实现高稳定性近单模万瓦激光输出[J]. 中国激光, 2023, 50(3): 0316001 Li Yuwei, Liu Yu, Xie Lianghua, et al. All-fiberized coherent beam combining for high-stability near-single-mode 10 kW-level laser output [J]. Chinese Journal of Lasers, 2023, 50(3): 0316001
[35]	Thomas K, James T. The New Laser Weapons[J]. Physics Today, 2024, 77(1): 32-8. doi: 10.1063/PT.3.5380
[36]	Beach R J, Feit M D, Mitchell S C, et al. Phase-Locked Antiguided Multiple-Core Ribbon Fiber[J]. IEEE Photonics Technol Lett, 2003, 15(5): 670-2. doi: 10.1109/LPT.2003.809943
[37]	Ramirez L P, Hanna M, Bouwmans G, et al. Coherent Beam Combining with an Ultrafast Multicore Yb-Doped Fiber Amplifier[J]. Opt Express, 2015, 23(5): 5406-16. doi: 10.1364/OE.23.005406
[38]	Chen H, Jin C, Huang B, et al. Integrated Cladding-Pumped Multicore Few-Mode Erbium-Doped Fibre Amplifier for Space-Division-Multiplexed Communications[J]. Nat Photonics, 2016, 10(8): 529-33. doi: 10.1038/nphoton.2016.125
[39]	Prevost F, Lombard L, Primot J, et al. Coherent Beam Combining of a Narrow-Linewidth Long-Pulse Er³⁺-Doped Multicore Fiber Amplifier[J]. Opt Express, 2017, 25(9): 9528-34. doi: 10.1364/OE.25.009528
[40]	Lin D, Carpenter J, Feng Yutong, et al. Reconfigurable Structured Light Generation in a Multicore Fibre Amplifier [J]. Nat Commun, 2020, 11(1).
[41]	Franczyk M, Pysz D, Buczynski R. Multicore Yb³⁺ Doped Silica Fibre Laser [J]. Laser Phys Lett, 2021, 18(12).
[42]	Klenke A, Steinkopff A, Aleshire C, et al. 500 W Rod-Type 4 × 4 Multicore Ultrafast Fiber Laser[J]. Opt Lett, 2022, 47(2): 345-8.
[43]	Arno K, Moritz G, Cesar J, et al. Polarization-Maintaining, Ytterbium-Doped, Rod-Type, Multicore Fiber; proceedings of the ProcSPIE, 2024 [C].
[44]	Mehran B, Arno K, Cesar J, et al. Extraction of 100mJ Level Pulse Energy at High Repetition Rates by a Ns-Class, 49-Core Fiber Laser; proceedings of the ProcSPIE, 2024 [C].
[45]	Bahri M, Jauregui C, Klenke A, et al. 117mJ Pulse Energy, High Average Power, Q-Switched Yb-Doped 49-Core Fiber Amplifier[J]. Opt Express, 2026, 34(2): 1987-95. doi: 10.1364/OE.579999
[46]	Steinkopff A, Jauregui C, Aleshire C, et al. Impact of Thermo-Optical Effects in Coherently Combined Multicore Fiber Amplifiers[J]. Opt Express, 2020, 28(25): 38093-105. doi: 10.1364/OE.410614
[47]	Klenke A, Jauregui C, Steinkopff A, et al. High-Power Multicore Fiber Laser Systems [J]. PROGRESS IN QUANTUM ELECTRONICS, 2022, 84.
[48]	Klenke A, Jauregui C, Bahri M, et al. High-Power Ytterbium-Doped Multicore Fibers[J]. Opt Fiber Technol, 2026, 96: 104471. doi: 10.1016/j.yofte.2025.104471
[49]	Nakamura T, Hoghooghi N, Fontaine N, et al. Sub-Femtosecond Stabilization of Multicore Fiber for High-Fidelity Quantum Networking at 100% Duty Cycle [J]. APL PHOTONICS, 2026, 11(2).
[50]	Wanitschke F, Jauregui C, Klenke A, et al. Experimental Investigations on Passive Stabilization of Coherently Combined Multicore Fiber Systems; proceedings of the Conference on Lasers and Electro-Optics/Europe (CLEO/Europe 2025) and European Quantum Electronics Conference (EQEC 2025), Munich, 2025/06/23, 2025 [C]. Optica Publishing Group.
[51]	Wrage M, Glas P, Fischer D, et al. Phase Locking in a Multicore Fiber Laser by Means of a Talbot Resonator[J]. Opt Lett, 2000, 25(19): 1436-8. doi: 10.1364/OL.25.001436
[52]	Michaille L, Bennett C, Taylor D, et al. Phase Locking and Supermode Selection in Multicore Photonic Crystal Fiber Lasers with a Large Doped Area[J]. Opt Lett, 2005, 30(13): 1668-70. doi: 10.1364/OL.30.001668
[53]	Li L, Schülzgen A, Chen S, et al. Phase Locking and in-Phase Supermode Selection in Monolithic Multicore Fiber Lasers[J]. Opt Lett, 2006, 31(17): 2577-9. doi: 10.1364/OL.31.002577
[54]	Li L, Schülzgen A, Li H, et al. Phase-Locked Multicore All-Fiber Lasers: Modeling and Experimental Investigation[J]. J Opt Soc Am B-Opt Phys, 2007, 24(8): 1721-8. doi: 10.1364/JOSAB.24.001721
[55]	Zhang Xiaolei, Zhang Xingyu, Wang Qingpu, et al. In-Phase Supermode Selection in Ring-Type and Concentric-Type Multicore Fibers Using Large-Mode-Area Single-Mode Fiber[J]. J Opt Soc Am A-Opt Image Sci Vis, 2011, 28(5): 924-33. doi: 10.1364/JOSAA.28.000924
[56]	Van N A, Antonio L E, SalcedavD G, et al. Optimization of Multicore Fiber for High-Temperature Sensing[J]. Opt Lett, 2014, 39(16): 4812-5. doi: 10.1364/OL.39.004812
[57]	Van N A, Antonio L E, Velazquez B A, et al. Bending Sensor Combining Multicore Fiber with a Mode-Selective Photonic Lantern[J]. Opt Lett, 2015, 40(22): 5188-91. doi: 10.1364/OL.40.005188
[58]	Jung Y, Alam S, Richardson D, et al. Multicore and Multimode Optical Amplifiers for Space Division Multiplexing [M]. 2020.
[59]	Steinkopff A, Aleshire C, Klenke A, et al. Analysis of Optical Core-to-Core Coupling: Challenges and Opportunities in Multicore Fiber Amplifiers[J]. Opt Express, 2023, 31(17): 28564-74. doi: 10.1364/OE.498460
[60]	Huang Lili, Hu Mingjie, Fang Xiaohui, et al. Generation of 110W Sub-100fs Pulses at 100MHz by Nonlinear Amplification Based on Multicore Photonic Crystal Fiber [J]. IEEE Photonics J, 2016, 8(3).
[61]	Andrianov A, Skobelev S, Balakin A, et al. Tapered Multicore Fiber for High-Power Laser Amplifiers [J]. IEEE Photonics J, 2022, 14(1).
[62]	Jauregui C, Bahri M, Klenke A, et al. Incoherent Combination of High-Power, Multicore Fiber Laser Systems; proceedings of the FIBER LASERS XXI: TECHNOLOGY AND SYSTEMS, 2024-01-01, 2024 [C].
[63]	Otto H, Klenke A, Jauregui C, et al. Scaling the Mode Instability Threshold with Multicore Fibers[J]. Opt Lett, 2014, 39(9): 2680-3. doi: 10.1364/OL.39.002680
[64]	Klenke A, Müller M, Stark H, et al. Coherently Combined 16-Channel Multicore Fiber Laser System[J]. Opt Lett, 2018, 43(7): 1519-22. doi: 10.1364/OL.43.001519
[65]	Wolf A, Kuznetsov A, Egorova O, et al. 7-Core Yb-Doped Fiber Laser with Femtosecond Pulse Inscribed Fiber Bragg Gratings; proceedings of the ADVANCED LASERS, HIGH-POWER LASERS, AND APPLICATIONS XIII, 2022-01-01, 2022 [C].
[66]	Li Lizhu, Zhu Xiushan, Wang Junfeng, et al. Injection-Locked Highly Yb³⁺-Doped Uncoupled-61-Core Phosphate Fiber Laser[J]. Opt Lett, 2023, 48(3): 590-3. doi: 10.1364/OL.481018
[67]	Ortega L, Feigenson T, Tam Y, et al. 1.2-kW All-Fiber Yb-Doped Multicore Fiber Amplifier[J]. Opt Lett, 2023, 48(3): 712-4. doi: 10.1364/OL.478436
[68]	Abedin K, Taunay T, Fishteyn M, et al. Cladding-Pumped Erbium-Doped Multicore Fiber Amplifier[J]. Opt Express, 2012, 20(18): 20191-200. doi: 10.1364/OE.20.020191
[69]	Matte-Breton C, Talbot L, Messaddeq Y, et al. Large Area Bragg Grating for Pump Recycling in Cladding-Pumped Multicore Erbium-Doped Fiber Amplifiers[J]. Opt Express, 2022, 30(11): 17824-35. doi: 10.1364/OE.457394
[70]	Gao Haohao, Liu Wenshi, Shen Xiao. Design and Performance Study of a Tm-Doped 4×4 Square Array Polarization-Maintaining Large-Mode-Area Fiber [J]. Optical and Quantum Electronics, 2024, 57(1).
[71]	Markiewicz J, Kochanowicz M, Ragin T, et al. Ultrabroadband near-Infrared Emission Profiling in Multicore Optical Fibers Doped with Er3+ and Yb³⁺/Tm³⁺/Ho³⁺ Ions [J]. Sci Rep, 2025, 15(1).
[72]	Payziyev S, Sherniyozov A, Qakhkhorov A. Simulation of Solar-Pumped Multicore Nd³⁺-Doped Silica Fiber Lasers [J]. JOURNAL OF PHOTONICS FOR ENERGY, 2024, 14(2).
[73]	肖虎, 冷进勇, 周朴, 等. 高功率级联抽运掺镱光纤激光器研究进展[J]. 中国激光, 2017, 44(2): 201007 Xiao Hu, Leng Jinyong, Zhou Pu, et al. High Power Tandem-Pumped Yb-Doped Fiber Laser[J]. Chinese Journal of Lasers, 2017, 44(2): 0201007
[74]	叶云, 王小林, 史尘, 等. 高功率掺镱光纤激光振荡器研究进展[J]. 激光与光电子学进展, 2018, 55(12): 120006 Yun Ye, Xiaolin Wang, Chen Shi, et al. Research Progress in High Power Ytterbium Doped Fiber Laser Oscillator[J]. Laser & Optoelectronics Progress, 2018, 55(12): 120006
[75]	周朴, 冷进勇, 肖虎, 等. 高平均功率光纤激光的研究进展与发展趋势[J]. 中国激光, 2021, 48(20): 2000001 Pu Zhou, Jinyong Leng, Hu Xiao, et al. High Average Power Fiber Lasers: Research Progress and Future Prospect[J]. Chinese Journal of Lasers, 2021, 48(20): 2000001
[76]	王小林, 文榆钧, 张汉伟, 等. 变纤芯直径掺镱光纤激光器: 现状与趋势[J]. 中国激光, 2022, 49(21): 2100001 Xiaolin Wang, Yujun Wen, Hanwei Zhang, et al. Ytterbium-Doped Core-Diameter-Variable Fiber Laser: Current Situation and Develop Tendency[J]. Chinese Journal of Lasers, 2022, 49(21): 2100001
[77]	Otto H J, Klenke A, Jauregui C, et al. Scaling the Mode Instability Threshold with Multicore Fibers[J]. Opt Lett, 2014, 39(9): 2680-3. doi: 10.1364/OL.39.002680
[78]	Ji J, Raghuraman S, Huang X, et al. 115 W Fiber Laser with an All Solid-Structure and a Large-Mode-Area Multicore Fiber[J]. Opt Lett, 2018, 43(14): 3369-72. doi: 10.1364/OL.43.003369
[79]	Li Huizi, Raghuraman S, Chen Shaoxiang, et al. Efficient 976 nm Laser Based on an All-Solid and Large-Mode-Area Multicore Yb-Doped Fiber; proceedings of the Conference on Lasers and Electro-Optics, San Jose, California, 2021/05/09, 2021 [C]. Optica Publishing Group.
[80]	Ye Yun, Lin Xianfeng, Xi Xiaoming, et al. Large Mode Area Saddle-Shaped Core Yb-Doped Fiber Enabled Monolithic High-Power, High-Efficiency, near-Diffraction-Limited Mopa Laser; proceedings of the ProcSPIE, 2022 [C].
[81]	Klenke A, Steinkopff A, Aleshire C, et al. 1 kW Average Power Emission from an in-House 4×4 Multicore Rod-Type Fiber; proceedings of the 2021 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC), 21-25 June 2021, 2021 [C].
[82]	Christopher A, Albrecht S, Maximilian K, et al. High Energy Oscillator-Amplifier with Tapered Rod-Type Multicore Fiber; proceedings of the ProcSPIE, 2022 [C].
[83]	Klenke A, Bahri M, Steinkopff A, et al. 49-Core Rod-Type Ytterbium-Doped Multicore Fiber for High Power Operation [J]. Proceedings of SPIE, 2023.
[84]	Klenke A, Steinkopff A, Bahri M, et al. Rod-Type Multicore Fiber with 49 Cores for Coherent Beam Combination of Femtosecond Pulses; proceedings of the Laser Congress 2023 (ASSL, LAC), Tacoma, Washington, 2023/10/08, 2023 [C]. Optica Publishing Group.
[85]	Bahri M, Aleshire C, Steinkopff A, et al. 7×7 Multicore Fiber, Nanosecond Laser System Delivering 60 mJ Pulse Energy; proceedings of the Conference on Lasers and Electro-Optics/Europe (CLEO/Europe 2023) and European Quantum Electronics Conference (EQEC 2023), Munich, 2023/06/26, 2023 [C]. Optica Publishing Group.
[86]	Cesar J, Arno K, Mehran B, et al. Pump Absorption and Amplification Uniformity in Rod-Type, Multicore Fibers; proceedings of the ProcSPIE, F, 2025 [C].
[87]	Wolf A, Dostovalov A, Bronnikov K, et al. Advances in Femtosecond Laser Direct Writing of Fiber Bragg Gratings in Multicore Fibers: Technology, Sensor and Laser Applications [J]. OPTO-ELECTRONIC ADVANCES, 2022, 5(4).
[88]	Alexey G. Kuznetsov, Alexey A. Wolf, Zhibzema E. Munkueva, et al. Spatio-Spectral Effects in Coupled Multicore All-Fiber Lasers with Fbg Arrays; proceedings of the ProcSPIE, 2024 [C].
[89]	Lu Xinda, Zhao Rong, Gao Chenhui, et al. Near-Hundred-Watt All-Fiber Multicore Fiber Laser Oscillators Fabricated by Femtosecond Direct Writing Bragg Gratings in a Seven-Core Yb-Doped Fiber[J]. Opt Express, 2025, 33(22): 46054-61. doi: 10.1364/OE.574904
[90]	Till W, Friedrich M, Marco P, et al. Overview and Perspectives of Fiber Laser Power Scaling; proceedings of the ProcSPIE, 2023 [C].
[91]	Arno K, Müller M, Stark H, et al. Coherent Beam Combination of Pulses Emitted by a 16-Core Ytterbium-Doped Fiber; proceedings of the ProcSPIE, 2019 [C].
[92]	Klenke A, Steinkopff A, Aleshire C, et al. 500 W Average Power, Multicore Fiber-Based Femtosecond CPA System; proceedings of the FIBER LASERS XIX: TECHNOLOGY AND SYSTEMS, 2022-01-01, 2022 [C].
[93]	Limpert J, Klenke A, Steinkopf A, et al. Coherently Combined High Power Multicore Fibers; proceedings of the European Quantum Electronics Conference (EQEC 2023), Munich, 2023/06/26, 2023 [C]. Optica Publishing Group.
[94]	Arno K, Mehran B, Cesar J, et al. Femtosecond Cpa Laser System Emitting 261W Average Power, 1.75mJ Pulse Energy Based on Coherent Combination of a 49-Core Fiber; proceedings of the ProcSPIE, 2025 [C].
[95]	Kalinin N, Anashkina E, Leuchs G, et al. Lenslet Array-Free Efficient Coherent Combining of Broadband Pulses at the Output of a Multicore Fiber with a Square Core Grid[J]. Opt Express, 2022, 30(2): 1013-20. doi: 10.1364/OE.446794
[96]	Kalinin N A, Anashkina E A, Egorova O N, et al. Controlled Excitation of Supermodes in a Multicore Fiber with a 5×5 Square Array of Strongly Coupled Cores [J]. PHOTONICS, 2021, 8(8).
[97]	Agrawal G. Nonlinear Fiber Optics[M], 2019.
[98]	Chekhovskoy I, Rubenchik A, Shtyrina O, et al. Nonlinear Combining and Compression in Multicore Fibers [J]. PHYSICAL REVIEW A, 2016, (4).
[99]	Andrianov A, Kalinin N, Koptev M, et al. High-Energy Femtosecond Pulse Shaping, Compression, and Contrast Enhancement Using Multicore Fiber [J]. Opt Lett, 2019, (2).
[100]	Betlej A, Suntsov S, Makris Kg, et al. All-Optical Switching and Multifrequency Generation in a Dual-Core Photonic Crystal Fiber [J]. Opt Lett, 2006, (10).
[101]	Fang Xiaohui, Hu Minglie, Huang Lili, et al. Multiwatt Octave-Spanning Supercontinuum Generation in Multicore Photonic-Crystal Fiber [J]. Opt Lett, 2012, (12).
[102]	Yan Yuefang, Tao Rumao, Li Min, et al. Analysis of Talbot Fiber for Amplifier and Combining; proceedings of the 14th Applied Optics and Photonics China Beijing, 2025 [C].
[103]	César J M, Mehran Bi, Felix W, et al. 3.2kW Average Power, 9-Core, Fiber Laser System proceedings of the Fiber Lasers XXIII: Technology and Systems, 2026 [C].
[104]	许晓军. 高能激光六十年: 回顾与展望[J]. 强激光与粒子束, 2020, 32(1): 011007 Xu Xiaojun. Retrospect and prospect on 60-year development of high energy laser [J]. High Power Laser and Particle Beams, 2020, 32(1): 011007
[105]	Ballato J, Cavillon M, Dragic P A. Unified Materials Approach to Mitigating Optical Nonlinearities in Optical Fiber. I. Thermodynamics of Optical Scattering[J]. INTERNATIONAL JOURNAL OF APPLIED GLASS SCIENCE, 2018, 9(2): 263-77. doi: 10.1111/ijag.12327
[106]	Dragic P D, Cavillon M, Ballato A, et al. A Unified Materials Approach to Mitigating Optical Nonlinearities in Optical Fiber. Ii. B. The Optical Fiber, Material Additivity and the Nonlinear Coefficients[J]. INTERNATIONAL JOURNAL OF APPLIED GLASS SCIENCE, 2018, 9(3): 307-18. doi: 10.1111/ijag.12329
[107]	Cavillon M, Kucera C, Hawkins T, et al. A Unified Materials Approach to Mitigating Optical Nonlinearities in Optical Fiber. Iii. Canonical Examples and Materials Road Map[J]. INTERNATIONAL JOURNAL OF APPLIED GLASS SCIENCE, 2018, 9(4): 447-70. doi: 10.1111/ijag.12336
[108]	Hawkins T W, Dragic P D, Yu N, et al. Kilowatt Power Scaling of an Intrinsically Low Brillouin and Thermo-Optic Yb-Doped Silica Fiber[J]. J Opt Soc Am B-Opt Phys, 2021, 38(12): F38-F49. doi: 10.1364/JOSAB.434413
[109]	李国豪, 顾静良, 唐乾轲, 等. 基于深度学习的大规模光纤激光相干合成相位控制的异常检测[J]. 强激光与粒子束, 2026, 38(1): 019001 Li Guohao, Gu Jingliang, Tang Qianke, et al. Anomaly detection for phase control of large-scale fiber laser coherent combination based on deep learning [J]. High Power Laser and Particle Beams, 2026, 38(1): 019001
[110]	Zhou Hongbing, Feng Xi, Xie Lianghua, et al. Comprehensive Investigation of Locset and Spgd Algorithms in Coherent Beam Combining Applications[J]. Optics & Laser Technology, 2025, 181: 111568. doi: 10.1016/j.optlastec.2024.111568
[111]	周宏冰, 陶汝茂, 辛雄, 张昊宇, 刘辰旭, 王信宇, 舒强, 楚秋慧, 林宏奂, 王建军, 颜立新, 景峰. 光纤激光相干合成中偏振-相位主动控制技术(特邀)[J]. 红外与激光工程, 2024, 53(12): 20240380 ZHOU Hongbing, TAO Rumao, XIN Xiong, ZHANG Haoyu, LIU Chenxu, WANG Xinyu, SHU Qiang, CHU Qiuhui, LIN Honghuan, WANG Jianjun, YAN Lixin, JING Feng. Active polarization-phase control in fiber laser coherent beam combining (invited)[J]. Infrared and Laser Engineering, 2024, 53(12): 20240380
[112]	Yan Yuefang, Tao Rumao, Li Haokun, et al. Study of High Power Cbc Fiber Laser Systems with Non-Equal Splitting Ratio Beam-Splitters[J]. Results in Optics, 2023, 10: 100368. doi: 10.1016/j.rio.2023.100368
[113]	Goodno G D, Shih C C, Rothenberg J E. Perturbative Analysis of Coherent Combining Efficiency with Mismatched Lasers[J]. Opt Express, 2010, 18(24): 25403-14. doi: 10.1364/OE.18.025403
[114]	Yan Yuefang, Liu Yu, Zhang Haoyu, et al. Principle and Numerical Demonstration of High Power All-Fiber Coherent Beam Combination Based on Self-Imaging Effect in a Square Core Fiber[J]. Photonics Research, 2022, 10(2): 444-55. doi: 10.1364/PRJ.441384
[115]	Prossotowicz M, Heimes A, Flamm D, et al. Coherent Beam Combining with Micro-Lens Arrays [J]. Opt Lett, 2020, (24).
[116]	Prossotowicz M, Flamm D, Heimes A, et al. Dynamic Focus Shaping with Mixed-Aperture Coherent Beam Combining[J]. Opt Lett, 2021, 46(7): 1660-3. doi: 10.1364/OL.422135
[117]	Thielen P A, Ho J G, Burchman D A, et al. Two-Dimensional Diffractive Coherent Combining of 15 Fiber Amplifiers into a 600 W Beam[J]. Opt Lett, 2012, 37(18): 3741-3. doi: 10.1364/OL.37.003741
[118]	Zhou T, Sano T, Wilcox R. Coherent Combination of Ultrashort Pulse Beams Using Two Diffractive Optics[J]. Opt Lett, 2017, 42(21): 4422-5. doi: 10.1364/OL.42.004422
[119]	Tao Rumao, Wang Xiaolin, Xiao Hu, et al. Coherent Beam Combination of Fiber Lasers with a Strongly Confined Tapered Self-Imaging Waveguide: Theoretical Modeling and Simulation[J]. PHOTONICS RESEARCH, 2013, 1(4): 186-96. doi: 10.1364/PRJ.1.000186
[120]	Yan Yuefang, Liu Yu, Zhang Haoyu, et al. Mismatch Analysis of All-Fiber Coherent Beam Combiners Based on the Self-Imaging Effect[J]. High Power Laser Sci Eng, 2024, 12: e13. doi: 10.1017/hpl.2023.88
[121]	Cesar J, Felix W, Arno K, et al. Simplifying Multicore Fiber Laser Systems; proceedings of the ProcSPIE, 2025 [C].
[122]	Liu Yu, Li Yuwei, Yan Yuefang, et al. Self-Imaging-Based High-Power All-Fiber Coherent Combiners: Fabrication and Preliminary Demonstration[J]. Opt Lett, 2023, 48(6): 1538-41. doi: 10.1364/OL.483968
[123]	Jung Y M, Vukovic N, Codemard C A, et al. High-Efficiency Multi-Spot Beam Generation with an All-Fiber Smf-Scf Structure[J]. Opt Express, 2025, 33(10): 21951-60. doi: 10.1364/OE.554649
[124]	Jauregui C, Steinkopff A, Limpert J. Talbot Fiber: A Poorman’s Approach to Coherent Combining; proceedings of the Fiber Lasers XVII: Technology and Systems, 2020 [C]. SPIE.