| 飞秒光纤激光相干合成技术最新进展 |
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| 引用本文： | 王井上,张瑶,王军利,魏志义,常国庆.飞秒光纤激光相干合成技术最新进展[J].物理学报,2021(3):1-12. |
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| 作者姓名： | 王井上 张瑶 王军利 魏志义 常国庆 |
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| 作者单位： | 中国科学院物理研究所;西安电子科技大学物理与光电工程学院 |
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| 基金项目： | 广东省重点领域研发计划(批准号:2018B090904003);国家自然科学基金(批准号:11774234,91850209);用于三维生物模型大深度和高精度成像的新型多光子显微镜研制项目(批准号:YJKYYQ20190034)资助的课题。 |
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| 摘 要： | 飞秒光纤激光器具有平均功率高、散热性能佳、光束质量好和空间体积小等优势,在基础研究、工业加工、生物医疗等方面得到越来越广泛的应用.相干合成技术能够有效克服光纤中有害的非线性效应和热效应的影响,进一步提高飞秒光纤激光器输出的脉冲能量和平均功率.本文介绍高功率飞秒光纤激光器相干合成的基本技术路线,重点阐述相干合成技术中关于填充孔径相干合成与平铺孔径相干合成的最新研究进展,并详细介绍相干合成技术中不同类型主动相位锁定技术的基本原理.相信在不远的将来,飞秒光纤激光相干合成系统的单脉冲能量和平均功率将不断攀升,从而开创许多崭新的研究领域.
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| 关 键 词： | 超短脉冲 光纤激光 相干合成 高平均功率 |
Recent progress of coherent combining technology in femtosecond fiber lasers |
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| Wang Jing-Shang,Zhang Yao,Wang Jun-Li,Wei Zhi-Yi,Chang Guo-Qing.Recent progress of coherent combining technology in femtosecond fiber lasers[J].Acta Physica Sinica,2021(3):1-12. |
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| Authors: | Wang Jing-Shang Zhang Yao Wang Jun-Li Wei Zhi-Yi Chang Guo-Qing |
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| Affiliation: | (Key Laboratory of Optical Physics,Institute of Physics,Chinese Academy of Sciences,Beijing 100190,China;School of Physics and Optoelectronic Engineering,Xidian University,Xi’an 710071,China) |
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| Abstract: | Widely employed in fundamental research,industrial processing,and biomedicine,femtosecond fiber lasers exhibit many attractive features such as high average power,good heat dissipation,excellent beam quality,and compact footprint.Coherent combining technology can effectively suppress the detrimental nonlinear and thermal effects in the fiber amplifiers,and therefore further increase the output pulse energy and average power of femtosecond fiber lasers.In this article,we mainly discuss different coherent combining techniques in highpower ultrafast Yb-fiber laser systems and the relevant phase-locking methods.We believe that the advent of new coherent combining techniques will further improve the average power and pulse energy of femtosecond fiber laser systems,thereby opening up some new research areas. |
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| Keywords: | ultrashort pulse fiber laser coherent combination high average power |
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