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学者姓名：李平雪
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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 ：
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 ：
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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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 ：
To obtain fiber devices with large stretched amount, we designed and fabricated two kinds of chirped fiber Bragg grating (CFBG) stretchers with the phase mask inscription technology. According to the theories of the phase mask inscription technology and dispersion compensation with CFBGs, the fabrication methods for the two stretchers were proposed and the optical paths were optimized to obtain CFBGs with high reflectivity and wide reflection bandwidth. The reflective resonance wavelength of CFBG was controlled by the tension sensor, and the inscription method was improved. A cascaded CFBG stretcher with large dispersion and a series CFBG stretcher with large reflection bandwidth were fabricated. Fiber sources were then built to test the two kinds of stretchers. The stretched amount provided by the cascaded CFBG stretcher was directly measured to be 345 ps, which was consistent with the theoretical result. The stretched amount provided by the series CFBG stretcher was indirectly calculated through direct and reverse connections. The calculated result, being about 278.7 ps, was smaller than the theoretical result.
Keyword ：
series fiber Bragg grating stretcher series fiber Bragg grating stretcher fiber optics fiber optics dispersion management of chirped fiber Bragg grating dispersion management of chirped fiber Bragg grating phase mask inscription technique phase mask inscription technique cascaded fiber Bragg grating stretcher cascaded fiber Bragg grating stretcher
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| GB/T 7714 | Wang Mingxiao , Li Pingxue , Xu Yangtao et al. Design and Fabrication of Chirped Fiber Bragg Grating Stretchers [J]. | ACTA OPTICA SINICA , 2022 , 42 (7) . |
| MLA | Wang Mingxiao et al. "Design and Fabrication of Chirped Fiber Bragg Grating Stretchers" . | ACTA OPTICA SINICA 42 . 7 (2022) . |
| APA | Wang Mingxiao , Li Pingxue , Xu Yangtao , Li Shun , Yao Chuanfei . Design and Fabrication of Chirped Fiber Bragg Grating Stretchers . | ACTA OPTICA SINICA , 2022 , 42 (7) . |
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Abstract ：
The influence of optical nonlinearity on combining efficiency in ultrashort pulse fiber laser coherent combining system is investigated theoretically and experimentally. In the theoretical work, a new theoretical algorithm is presented for the coherent combining efficiency, which can be used to quantify the spectral coherence decay induced by optical nonlinearity imbalance between the sub-beams. The spectral information of the sub-beam is obtained by numerically solving the nonlinear Schrodinger equation (NLSE) in this algorithm to ensure an accurate prediction. In the experimental work, the coherent combining of two all-fiber picosecond lasers is achieved, and the influence of imbalanced optical nonlinearity on the combining efficiency is studied, which agrees with the theoretical prediction. This paper reveals the physical mechanism for the influence of optical nonlinearity on the combining efficiency, which is valuable for the coherent combining of ultrashort pulse fiber laser beams.
Keyword ：
coherent beam combination coherent beam combination optical nonlinearity optical nonlinearity spectral coherence spectral coherence
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| GB/T 7714 | Zhu, Yun-Chen , Li, Ping-Xue , Yao, Chuan-Fei et al. Influence of optical nonlinearity on combining efficiency in ultrashort pulse fiber laser coherent combining system [J]. | CHINESE PHYSICS B , 2022 , 31 (6) . |
| MLA | Zhu, Yun-Chen et al. "Influence of optical nonlinearity on combining efficiency in ultrashort pulse fiber laser coherent combining system" . | CHINESE PHYSICS B 31 . 6 (2022) . |
| APA | Zhu, Yun-Chen , Li, Ping-Xue , Yao, Chuan-Fei , Li, Chun-Yong , Xiong, Wen-Hao , Li, Shun . Influence of optical nonlinearity on combining efficiency in ultrashort pulse fiber laser coherent combining system . | CHINESE PHYSICS B , 2022 , 31 (6) . |
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