supported by the National Natural Science Foundation of China(Nos.61735001,61575004,and 11027404)。
We demonstrated a divided pulse amplification of burst pulse trains.The intraburst rate is 1 GHz,and the burst rate ranges from 1.5 k Hz to 15 MHz.Under the pump power of 100 W,the burst pulse energy is adjustable fro...
supported by the National Natural Science Foundation of China(Nos.62205001 and 62275001)。
In this paper,we experimentally investigate the tuning characteristics of laser modes for an ultrahigh-Q Er^(3+)-doped microbottle resonator(MBR)based on the whispering gallery mode(WGM).Thanks to the optimized Er^(3+...
supported by the National Key Research and Development Program of China (No.2020YFB1805800);the National Natural Science Foundation of China (Nos.61975113,61935002,and 62275148);the 111 Project (No.D20031);the Shanghai Professional Technical Public Service Platform of Advanced Optical Waveguide Intelligent Manufacturing and Testing (No.19DZ229)。
The realization of single-frequency fiber lasers requires high-gain media. In this work, an Er:YAG crystal-derived silica fiber(EYDSF) was prepared using the melt-in-tube method, whose gain coefficient was up to 2.11 ...
supported by the National Natural Science Foundation of China (No.62275272);the Training Program for Excellent Young Innovators of Changsha(No.kq2205025)。
Dynamic beam shaping is of importance for a wide range of applications, such as light field regulation, laser processing, and advanced manufacturing. In this paper, an internal phase-sensing tiled-aperture coherent be...
supported by the National Key R&D Program of China (No.2022YFB2903102);the National Natural Science Foundation of China (Nos.12204141,62105087,62105088;12304476);the Key R&D Program of Anhui Province(No.202104a07020010);the Natural Science Foundation of Anhui Province (No.2208085QF214);the Fundamental Research Funds for the Central Universities (Nos.JZ2024HGTB0235,JZ2024HGTB0212,and JZ2024HGTB0202)。
The mid-infrared (MIR) pulsed laser,operating at around 2.8μm,holds great significance due to its strong water absorption and the characteristic fingerprint spectra it provides for essential molecules.Nevertheless,th...
supported by the Funding for Distinguished Yong Scholars of Hunan Province(No.2023JJ10057);the Training Program for Excellent Young Innovations of Changsha(No.kq2305038);the Basic Scientific Research Program(No.JCKY2021525B015).
A 2×3 kW-level bidirectional output fiber oscillator is realized by combining the specially designed spindle-shaped ytterbium-doped fiber,non-wavelength-stabilized 976-nm LDs,and grating bandwidth optimization to bal...
supported by the National Natural Science Foundation of China(Nos.12204178,12134004,12104162,and 12274141).
We demonstrate an all-polarization-maintaining(APM)fiber mode-locked laser based on nonlinear polarization evolution(NPE).A well-designed Sagnac fiber loop is employed to establish the nonlinear polarization evolution...
supported by the National Natural Science Foundation of China (No.62075030);Sichuan Science and Technology Program (No.2023YFSY0058),111 Project (No.B14039);Ministry of Science and Technology (No.DL2023167001L)。
The Raman random fiber laser (RRFL) is a typical complex physical system due to the intrinsic random feedback of the fiber,which causes complexity in the RRFL output. So far, the time-domain statistical attributes of ...
This work was supported by the National Natural Science Foundation of China(NSFC)(No.61575018).
The coexistence of a noise-like pulse(NLP)and a dark pulse was experimentally demonstrated in a net-anomalous dispersion Er/Yb co-doped fiber(EYDF)laser,for the first time,to our knowledge.The cavity was mode-locked b...
supported by the Director Fund of State Key Laboratory of Pulsed Power Laser Technology(No.SKL2020ZR02);the Postgraduate Scientific Research Innovation Project of Hunan Province(No.QL20220007)。
High-power ultrafast laser amplification based on a non-polarization maintaining fiber chirped pulse amplifier is demonstrated.The active polarization control technology based on the root-mean-square propagation(RMS-p...