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学者姓名：李平雪
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Abstract ：
We have demonstrated a 1 mu m fiber-solid-state hybrid high-energy laser in the hundred-picosecond range. Operating at a repetition rate of 1 kHz, the output energy was 71.1 mJ with a pulse duration of 63.8 ps. By simulating and analyzing the pumped laser intensity inside crystals of different cross-section diameters, and by utilizing the spherical aberration self-compensation effect, the positive spherical aberration thermal lens of the crystal could be reasonably utilized to compensate for the spherical aberration of the beam; the beam quality isM2x=2.10 andM2y=2.43. This high-energy multi-stage laser, which does not require pumping optical coupling or insertion of additional spherical aberration compensating elements, can be used in the fields of non-linear frequency conversion and industrial precision machining. (c) 2025 Optica Publishing Group. All rights, including for text and data mining(TDM), Artificial Intelligence (AI) training, and similar technologies, are reserved.
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| GB/T 7714 | Yang, Guangdao , Meng, Xianghao , Jiao, Tianmeng et al. 1 kHz, 70 mJ, high-energy hundred-picosecond fiber-solid-state hybrid laser amplification [J]. | APPLIED OPTICS , 2025 , 64 (7) : 1707-1714 . |
| MLA | Yang, Guangdao et al. "1 kHz, 70 mJ, high-energy hundred-picosecond fiber-solid-state hybrid laser amplification" . | APPLIED OPTICS 64 . 7 (2025) : 1707-1714 . |
| APA | Yang, Guangdao , Meng, Xianghao , Jiao, Tianmeng , Mao, Dun , Gong, Zhaoqing , Zhao, Xianglong et al. 1 kHz, 70 mJ, high-energy hundred-picosecond fiber-solid-state hybrid laser amplification . | APPLIED OPTICS , 2025 , 64 (7) , 1707-1714 . |
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Abstract ：
A hybrid chirped pulse amplification (CPA) system is demonstrated based on a fiber seed source and a three-stage Yb:YAG crystal amplifier. We investigate the mechanism of gain narrowing in a CPA system through theoretical and experimental research. The gain narrowing can be suppressed by pre-shaping the pulse spectrum via a fiber Bragg grating (FBG) with a specifically designed spectral characteristic before amplification. The compact compressor is based on a transmission diffraction grating with a line density of 1739 lines/mm. The high-order dispersion within the CPA system is compensated by a tunable dispersion stretcher. At a repetition rate of 200 kHz, the compressed average power of 64.15 W and pulse duration of 431 fs, corresponding to a pulse energy of 321 mu J and a peak power of 744 MW, is obtained. The polarization extinction ratio of the pulses is about 23 dB, and the M2 factor is less than 1.16. In addition, the long-term power stability is tested, and the root mean square of the average power is below 0.17% over 39.5 hours. Such good performance is beneficial to ultrafast material processing in scientific research and industrial fields. (c) 2025 Optica Publishing Group under the terms of the Optica Open Access Publishing Agreement
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| GB/T 7714 | Su, Meng , Meng, Xianghao , Zhao, Xianglong et al. Generation of 431 fs, 321 μJ femtosecond pulses from chirped-pulse Yb-fiber and Yb:YAG hybrid amplifiers by using FBG spectral shaping technique [J]. | OPTICS EXPRESS , 2025 , 33 (4) : 7218-7228 . |
| MLA | Su, Meng et al. "Generation of 431 fs, 321 μJ femtosecond pulses from chirped-pulse Yb-fiber and Yb:YAG hybrid amplifiers by using FBG spectral shaping technique" . | OPTICS EXPRESS 33 . 4 (2025) : 7218-7228 . |
| APA | Su, Meng , Meng, Xianghao , Zhao, Xianglong , Gong, Zhaoqing , Mao, Dun , Guo, Xiaoyang et al. Generation of 431 fs, 321 μJ femtosecond pulses from chirped-pulse Yb-fiber and Yb:YAG hybrid amplifiers by using FBG spectral shaping technique . | OPTICS EXPRESS , 2025 , 33 (4) , 7218-7228 . |
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Abstract ：
We obtained lasers based on the simultaneous-gain clad pump laser in a fluorotellurite fiber. Using a secondary suction method, we prepared a fluorotellurite double-clad preform with a Ho3+-doped core surrounded by a Tm(3+)doped inner cladding, which we then drew into fibers. Tm3+ ions generate a 1.94 mu m laser by pumping the inner cladding with a 1570 nm fiber laser. This is followed by further pumping of the Ho3+-doped core, and a 2.06 mu m laser is obtained. Our results validate cladding simultaneous-gain feasibility of producing core lasers in a fluorotellurite fiber. (c) 2024 Optica Publishing Group. All rights, including for text and data mining are reserved.
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| GB/T 7714 | Ren, Guochuan , Yao, Chuanfei , Wang, Xuan et al. Lasing at 2.1 μm pumped by a simultaneous-gain clad laser [J]. | OPTICS LETTERS , 2024 , 49 (17) : 4946-4949 . |
| MLA | Ren, Guochuan et al. "Lasing at 2.1 μm pumped by a simultaneous-gain clad laser" . | OPTICS LETTERS 49 . 17 (2024) : 4946-4949 . |
| APA | Ren, Guochuan , Yao, Chuanfei , Wang, Xuan , Pu, Luyao , Li, Kaihang , Li, Pingxue . Lasing at 2.1 μm pumped by a simultaneous-gain clad laser . | OPTICS LETTERS , 2024 , 49 (17) , 4946-4949 . |
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Abstract ：
An all-fiber polarization maintaining high-power laser system operating at 1.7 mu m based on the Raman-induced soliton self-frequency shifting effect is demonstrated. The entirely fiberized system is built by erbium-doped oscillator and two-stage amplifiers with polarization maintaining commercial silica fibers and devices, which can provide robust and stable soliton generation. High-power soliton laser with the average power of 0.28 W, the repetition rate of 42.7 MHz, and pulse duration of 515 fs is generated directly from the main amplifier. Our experiment provides a feasible method for high-power all-fiber polarization maintaining femtosecond laser generation working at 1.7 mu m.
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| GB/T 7714 | Xu, Zi-Peng , Wang, Xuan , Yao, Chuan-Fei et al. High-Power Raman Soliton Generation at 1.7 μm in All-Fiber Polarization-Maintaining Erbium-Doped Amplifier [J]. | CHINESE PHYSICS LETTERS , 2024 , 41 (5) . |
| MLA | Xu, Zi-Peng et al. "High-Power Raman Soliton Generation at 1.7 μm in All-Fiber Polarization-Maintaining Erbium-Doped Amplifier" . | CHINESE PHYSICS LETTERS 41 . 5 (2024) . |
| APA | Xu, Zi-Peng , Wang, Xuan , Yao, Chuan-Fei , Yang, Lin-Jing , Li, Ping-Xue . High-Power Raman Soliton Generation at 1.7 μm in All-Fiber Polarization-Maintaining Erbium-Doped Amplifier . | CHINESE PHYSICS LETTERS , 2024 , 41 (5) . |
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Abstract ：
High-energy single-frequency pulsed light with low noise is generated from a master oscillator power amplifier (MOPA) system at 1.55 mu m eye-safe wavelength using an ultra large mode area Er-Yb gain fiber. At a pulse repetition rate of 2 kHz, the maximum pulse energy without stimulated Brillouin scattering (SBS) reaches 2.07 mJ with 375 ns pulse duration for a pump power of 56.4 W. The pulse energy fluctuation is approximately 0.72 % within 21.5 min. The signal noise ratio (SNR) from the single-frequency fiber amplifier, at the highest pulse energy, centered at 1551.1 nm, is approximately 30 dB. The spectral half width of the signal light is calculated to be 1.28 MHz, which is close to the transform limit.
Keyword ：
High-energy single-frequency laser High-energy single-frequency laser Stimulated Brillouin scattering Stimulated Brillouin scattering Very large mode area Very large mode area 1.55 mu m eye-safe wavelength 1.55 mu m eye-safe wavelength
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| GB/T 7714 | Li, Yang , Wang, Yunpeng , Zhang, Dongming et al. Single frequency pulsed Er,Yb co-doped fiber amplifier with 2 mJ of output energy [J]. | INFRARED PHYSICS & TECHNOLOGY , 2023 , 136 . |
| MLA | Li, Yang et al. "Single frequency pulsed Er,Yb co-doped fiber amplifier with 2 mJ of output energy" . | INFRARED PHYSICS & TECHNOLOGY 136 (2023) . |
| APA | Li, Yang , Wang, Yunpeng , Zhang, Dongming , Xiong, Chen , Li, Pingxue . Single frequency pulsed Er,Yb co-doped fiber amplifier with 2 mJ of output energy . | INFRARED PHYSICS & TECHNOLOGY , 2023 , 136 . |
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Abstract ：
We demonstrate a high repetition rate, high average power narrow-linewidth fiber amplifier at 1.55 mu m eye-safe waveband by using a very-large-mode-area active fiber doping Er and Yb, having a 60-mu m-diameter core and a 600-mu m-diameter inner cladding. A maximum average power reaches 16 W at a 10 kHz repetition rate for 600 ns pulses in the stimulated Brillouin scattering (SBS) free operation, which calculates to a 1.6 mJ pulse energy and 2.7 kW peak power. In addition, the peak power rises to 4.9 kW with 148 ns pulses at the onset of SBS. The signal peak is located at 1,551.15 nm with a 36 dB signal-to-noise ratio (SNR). In order to eliminate the pulse steepening, the pulse shaping technology using a triangular-like wave with a slower rising edge is applied on the input pulses. The half-width of the frequency-intensity spectrum from high-average-power fiber amplifier is about 1.02 MHz, approaching the Fourier transform limit.
Keyword ：
fiber amplifier fiber amplifier narrow linewidth narrow linewidth high average power high average power pulse shaping pulse shaping very-large-mode-area active fiber very-large-mode-area active fiber
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| GB/T 7714 | Wang, Yunpeng , Li, Yang , Zhang, Dongming et al. Pulse shaping, high average power narrow linewidth Er, Yb co-doped fiber amplifier [J]. | FRONTIERS IN PHYSICS , 2023 , 11 . |
| MLA | Wang, Yunpeng et al. "Pulse shaping, high average power narrow linewidth Er, Yb co-doped fiber amplifier" . | FRONTIERS IN PHYSICS 11 (2023) . |
| APA | Wang, Yunpeng , Li, Yang , Zhang, Dongming , Xiong, Chen , Li, Pingxue . Pulse shaping, high average power narrow linewidth Er, Yb co-doped fiber amplifier . | FRONTIERS IN PHYSICS , 2023 , 11 . |
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Abstract ：
Ultrashort pulse fiber lasers with tunable pulsewidth have a wide range of applications in telecommunication, micro-fabrication, and nonlinear bioimaging. In this paper, we reported the simulation of multi-range pulsewidth-tunable ultrashort pulse laser generation in a mode-locked Er3+ doped fiber laser based on Cd3As2 as a saturable absorber (SA) for the first time. By changing the modulation depth (MD) of Cd3As2 SA from 35% to 75% at the different net normal dispersion, the pulsewidth of the fiber laser is tuned from 4.07 to 48.9 ps. In our simulation, the maximum single tunable range (20.3-48.9 ps) can be obtained when we use a long normal dispersion fiber to increase the net normal dispersion of the cavity, and the minimum tunable range of 1.68-2.45 ps is also achieved by further simultaneously decreasing the cavity length and the net normal dispersion. This model of a mode-locked fiber laser controlled by the MD of Cd3As2 SA provides a simple, reliable, and low-cost solution for a variety of applications that require width-tunable pulses. (c) 2023 Author(s). All article content, except where otherwise noted, is licensed under a Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). https://doi.org/10.1063/5.0138435
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| GB/T 7714 | Yang, Linjing , Yao, Chuanfei , Wu, Yongjing et al. Theoretical study on multi-range pulsewidth tuning in a dissipative soliton laser mode-locked by a Dirac semimetal [J]. | AIP ADVANCES , 2023 , 13 (4) . |
| MLA | Yang, Linjing et al. "Theoretical study on multi-range pulsewidth tuning in a dissipative soliton laser mode-locked by a Dirac semimetal" . | AIP ADVANCES 13 . 4 (2023) . |
| APA | Yang, Linjing , Yao, Chuanfei , Wu, Yongjing , Wang, Xuan , Ren, Guochuan , Wang, Chao et al. Theoretical study on multi-range pulsewidth tuning in a dissipative soliton laser mode-locked by a Dirac semimetal . | AIP ADVANCES , 2023 , 13 (4) . |
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Abstract ：
Chirp-rate-tunable microwave waveforms (CTMWs) with dynamically tunable parameters are of basic interest to many practical applications. Recently, photonic generation of microwave signals has made their bandwidths wider and more convenient for optical fiber transmission. An all-optical method for generation of multiband CTMWs is proposed and demonstrated on all-fiber architecture, relying on dual temporal cavity solitons with agile repetition rate. In the experiment, the triangular optical chirp microwave waveforms with bandwidth above 0.45 GHz (ranging from 1.45 GHz to 1.9 GHz) are obtained, and the chirp rate reaches 0.9 GHz/ms. The reconfigurability is also demonstrated by adjusting the control signal. This all-optical approach provides a technical basis for compact, multi-band reconfigurable microwave photonics transmission and reception systems.
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| GB/T 7714 | Xiong, Wen-Hao , Yao, Chuan-Fei , Li, Ping-Xue et al. Photonic Generation of Chirp-Rate-Tunable Microwave Waveforms Using Temporal Cavity Solitons with Agile Repetition Rate [J]. | CHINESE PHYSICS LETTERS , 2023 , 40 (6) . |
| MLA | Xiong, Wen-Hao et al. "Photonic Generation of Chirp-Rate-Tunable Microwave Waveforms Using Temporal Cavity Solitons with Agile Repetition Rate" . | CHINESE PHYSICS LETTERS 40 . 6 (2023) . |
| APA | Xiong, Wen-Hao , Yao, Chuan-Fei , Li, Ping-Xue , Zhu, Fei-Yu , Lei, Ruo-Nan . Photonic Generation of Chirp-Rate-Tunable Microwave Waveforms Using Temporal Cavity Solitons with Agile Repetition Rate . | CHINESE PHYSICS LETTERS , 2023 , 40 (6) . |
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Abstract ：
一种全光纤结构的中红外锁模激光振荡器，能够适配于氟化物玻璃光纤的工艺技术手段，高质量地实现了中红外锁模激光振荡器的全纤化，在保持锁模激光输出质量的前提下，大大提升了系统的稳定性与集成性。包括：信号光纤(1)、中红外光纤合束器(2)、泵浦模块(3)、耦合输出镜(4)、可饱和吸收体(5)、中红外啁啾布拉格光纤光栅(6)。
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| GB/T 7714 | 李平雪 , 王超 , 姚传飞 . 一种全光纤结构的中红外锁模激光振荡器 : CN202310424987.9[P]. | 2023-04-20 . |
| MLA | 李平雪 et al. "一种全光纤结构的中红外锁模激光振荡器" : CN202310424987.9. | 2023-04-20 . |
| APA | 李平雪 , 王超 , 姚传飞 . 一种全光纤结构的中红外锁模激光振荡器 : CN202310424987.9. | 2023-04-20 . |
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Abstract ：
基于窄线宽、大梳齿间隔光频梳的信道化接收机产生系统，不包含空间器件和大量的电学器件，实现微波信号高动态范围、瞬时大带宽、多波段同时接收。其包括：电光调制光频梳产生及性能优化模块、超窄线宽相干泵浦光产生模块、大梳齿间隔宽带光频梳产生模块、微波信号接收与处理模块。
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| GB/T 7714 | 李平雪 , 朱飞宇 , 姚传飞 . 基于窄线宽、大梳齿间隔光频梳的信道化接收机产生系统 : CN202310443204.1[P]. | 2023-04-24 . |
| MLA | 李平雪 et al. "基于窄线宽、大梳齿间隔光频梳的信道化接收机产生系统" : CN202310443204.1. | 2023-04-24 . |
| APA | 李平雪 , 朱飞宇 , 姚传飞 . 基于窄线宽、大梳齿间隔光频梳的信道化接收机产生系统 : CN202310443204.1. | 2023-04-24 . |
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