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长春理工大学 物理学院, 吉林 长春 130022
[ "晁举庆(1999-),女,青海海南州人,硕士研究生,2023年于青海师范大学获得学士学位,主要从事光纤激光器及放大器方面的研究。17730924355@163.com" ]
[ "王蓟(1978-),女,山东青岛人,博士,教授,2007年于中国科学院长春光学精密机械与物理研究所获得博士学位,主要从事光纤激光器及放大器方面的研究。" ]
收稿:2025-11-25,
修回:2025-12-16,
纸质出版:2026-03-25
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晁举庆,王蓟,张国晗等.基于双段拼接掺铒光纤种子源的超短脉冲光纤激光器[J].发光学报,2026,47(03):497-504.
CHAO Juqing,WANG Ji,ZHANG Guohan,et al.Ultrashort Pulse Fiber Laser with A Dual-segment Spliced Erbium-doped Fiber Seed[J].Chinese Journal of Luminescence,2026,47(03):497-504.
晁举庆,王蓟,张国晗等.基于双段拼接掺铒光纤种子源的超短脉冲光纤激光器[J].发光学报,2026,47(03):497-504. DOI: 10.37188/CJL.20250256. CSTR: 32170.14.CJL.20250256.
CHAO Juqing,WANG Ji,ZHANG Guohan,et al.Ultrashort Pulse Fiber Laser with A Dual-segment Spliced Erbium-doped Fiber Seed[J].Chinese Journal of Luminescence,2026,47(03):497-504. DOI: 10.37188/CJL.20250256. CSTR: 32170.14.CJL.20250256.
报道了一种基于双段拼接掺铒光纤种子源的飞秒(超短脉冲)光纤激光器。该激光器由种子源、两级光纤放大器以及脉冲压缩部分组成。种子源是单壁碳纳米管(SWCNT)锁模的掺铒光纤激光器,由双段拼接掺铒光纤作为增益介质。该设计通过引入互补色散,有效实现了腔内色散管理与光谱展宽。在光纤放大器部分,第一级光纤放大器采用前向泵浦方式,第二级光纤放大器采用双向泵浦方式。经过放大后的脉冲利用2.0 m单模光纤实现脉冲压缩,最终获得光谱带宽78.39 nm,脉宽经Sech
2
拟合为49 fs、两级放大后输出最大平均功率为145.5 mW,对应峰值功率为65.3 kW的飞秒脉冲,对应的单脉冲能量为3.20 nJ。
This paper reports on an ultrashort pulse femtosecond fiber laser based on mode-locking with a two-segment spliced erbium-doped fiber. The laser consists of a seed source, a two-stage fiber amplifier, and a pulse compression section. The seed source is a single-walled carbon nanotube (SWCNT) mode-locked erbium-doped fiber laser, which uses a two-segment spliced erbium-doped fiber as the gain medium. This design effectively achieves intracavity dispersion management and spectral broadening by introducing complementary dispersion. In the amplifier section, the first-stage fiber amplifier employs forward pumping, while the second-stage uses bidirectional pumping. The amplified pulses are compressed using only 2.0 m of single-mode fiber, ultimately producing femtosecond pulses with a spectral bandwidth of 78.39 nm, a pulse width of 49 fs (fitted with a Sech² profile), a maximum average output power of 145.5 mW after the two-stage amplification, a corresponding peak power of 65.3 kW, and a single-pulse energy of 3.20 nJ.
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