A5062326729- Photonic Crystal and Fiber Optics
- Advanced Fiber Laser Technologies
- Laser-Matter Interactions and Applications
- Solid State Laser Technologies
- Optical Systems and Laser Technology
- Optical Coherence Tomography Applications
- Laser Design and Applications
- Advanced Fiber Optic Sensors
- Advanced Nanomaterials in Catalysis
- Quantum optics and atomic interactions
- Electrochemical sensors and biosensors
- Covalent Organic Framework Applications
- Advanced biosensing and bioanalysis techniques
- Olfactory and Sensory Function Studies
- Laser Material Processing Techniques
- Higher Education and Teaching Methods
- Biosensors and Analytical Detection
- Technology Assessment and Management
- Advanced Optical Sensing Technologies
- Advanced Chemical Sensor Technologies
- Advanced Fluorescence Microscopy Techniques
- Spectroscopy Techniques in Biomedical and Chemical Research
- Biotin and Related Studies
- Photonic and Optical Devices
- Regulation of Appetite and Obesity
Xi'an Institute of Optics and Precision Mechanics
2011-2024
Jiangsu University of Science and Technology
2011-2023
Shenzhen University
2021
Shenzhen Bao'an District People's Hospital
2021
Chinese Academy of Sciences
2016-2020
Imperial College London
2020
Institute of Optics and Electronics, Chinese Academy of Sciences
2019
University of Chinese Academy of Sciences
2018
Suzhou Institute of Nano-tech and Nano-bionics
2016
Jiaxing University
2013-2015
We demonstrate a hundred micro-Joules level femtosecond laser system based on compact and simple two-stage Yb:YAG single crystal fiber chirped pulse amplification which delivers compressed power of 15.57 W, width 715 fs. The different performance with input seed is experimentally studied. A maximum direct amplified output 44 W at 100 kHz obtained for an 12 W. To the best our knowledge, this highest average energy level.
Matrix metalloproteinase-1 (MMP-1) is associated with many types of cancers, including oral, colorectal, and brain cancers.
Abstract We demonstrate an all-fiber monolithic laser source from a gain-managed nonlinear (GMN) fiber amplifier with CFBG-based pre-compressor that generates high-contrast pulses repetition rate of 80 MHz, average power 1.6 W, and pulse duration sub-50 fs. The compressed quality can be optimized by tuning the parameters seed injected into GMN controlling pump pre-amplifier. This compact cost-effective system is simplified design amplification-based femtosecond systems. With alignment-free...
Ultrafast fiber lasers combining high peak power and excellent beam quality in the 1-µm wavelength range have been explored to applications industry, medicine fundamental science. Here, we report generation of a high-energy sub 300 fs polarization maintaining chirped pulse amplification (CPA) system by using Yb-doped large mode area tapered (PM) optical with core/cladding diameters 35/250 µm at thin end 56/400 thick end. The taper design features confined core for selective gain multi-layer...
Based on acousto-optic modulation and grating diffraction, a high-power-pulsed ~2 μm laser with wide tunable wavelength is realized in double-clad Tm fibers. A maximum average output power of 35.6 W obtained the 6 m fiber, which also provides pulse energy peak 1.58 mJ 5.6 kW, respectively. For fiber length, >20 can be achieved over 100 nm tuning range. Shortening length to 2 1 extend range further shorter spectral regimes (1892 1881 nm). Short narrows Q-switched duration 90 ns. This kind...
Abstract We demonstrate an environmentally stable femtosecond laser for industrial application based on all polarization‐maintaining Yb‐doped and experimentally explore the effect of net cavity dispersion (NCD) output characteristics. The oscillator emits pulses with 5.1 ps a 23 nm spectral bandwidth, then pulse is compressed to 88 fs. instabilities over 120 h gives 0.32% relative root mean square noise, indicating high stability laser. With effective regulation NCD, we obtained maximum...
An all-fiber low-repetition-rate SESAM mode-locked fiber oscillator combined with a dispersion-managed active loop produces flexible GHz burst-mode laser source. The high-power output is then produced by amplifying the source using an chirped-pulse amplification system. Then, compressed grating pair compressor; maximum amplified power of 97 W obtained. This results in high 82.07 stability RMS 0.09% and beam quality better than 1.2. Accurate dispersion control allows for production...
A hybrid-pumped gain-switched Tm3+ fiber laser with an all-fiber configuration is demonstrated to achieve over 10 W 2 μm pulsed beams. This system complementarily pumped by a 790 nm continuous-wave diode and 1 Yb3+ laser. Based on the triggering effect of pulse pump Rayleigh scattering induced Brillouin effect, can be narrowed less than 20 ns, which narrowest width ever achieved in high-power thulium lasers. The maximum energy mJ peak power 100 kW. Supercontinuum generation spanning 200...
Abstract In this paper, we innovatively conduct a Porro prism-based beam pointing stability promotion technique research and realize high-performance rod-type photonic crystal fiber-based chirped pulse amplification (CPA) system, mainly including frequency-reduced all-fiber pre-amplification stage, rod-based main 1600 lines/mm transmission grating-pair compressor. Laser output with average power of 50 W, repetition rates 500 kHz, energy 100 μJ, duration 830 fs, quality M 2 <1.3,...
We report on a SESAM mode-locked all-normal-dispersion all-polarization-maintaining (PM) ytterbium-doped picosecond fiber laser. The linear cavity oscillator utilizes narrowband filter for pulse shaping the first time, to best of our knowledge. Stable pulses with repetition rate 29 MHz are achieved under maximum average output power 35.9 mW. linearly polarized have full width at half 4 nm central wavelength 1032 nm, and 20.6 ps duration energies 1.2 nJ. Compared reported experiment scheme...
The shipbuilding industry is an important basis for China’s strategy of becoming a marine power. Promoting the innovative development means China to build Based on analysis mechanism innovation ecosystem enterprises, this paper studies level coordinated coupling between internal and external environment quantitatively measures overall coordination degree analyzes various enterprises. enterprises not only depend their own investment, but also have relationship with then give relevant...
We demonstrate a strictly all-polarization maintaining, all-fiber chirped pulse amplification of ultrashort pulses. Pulses with the duration 933 fs and energy as high 50 μJ are achieved at 200 kHz repetition rate in compact size. The variations spectra widths functions amplified output power have also been presented. To our best knowledge, this is highest extracted from system. environmentally stable femtosecond laser source will find various applications practice.
A high-energy chirped pulse amplification system based on a Yb doped fiber seeder, two-stage single crystal (SCF) amplifier with simple single-pass structure is demonstrated in this work. An amplified power of 52.2 W beam quality less than 1.3 at 200 kHz obtained, to our best knowledge, the highest obtained SCF energy hundreds microjoules. excellent stability 0.32% obtained. Dispersion between Bragg grating (CFBG) stretcher and volume compressor matched via use self-made temperature tuning...
A laser master oscillator power amplifier (MOPA) system consisting of a fiber and two-stage Yb:YAG single crystal (SCF) is experimentally studied. The nonlinear stimulated Raman scattering (SRS) avoided by limiting the output preamplifier to 600 mW. Due benefit from low nonlinearity high amplification gain SCF, pulse duration 16.95 ps average 41.7 W at repetition rate 250 kHz are obtained using polarization controlled double-pass corresponding an energy 166.8 μJ peak 9.84 MW, respectively....
A stable and simple Yb:YAG rod amplifier based on chirped pulse amplification in a water cooling system has been demonstrated.The output power of 38 W at 250 kHz repetition rate with spectrum width 4 nm centered 1030 nm, which support Fouriertransform limited duration 389 fs generated.The compressed 23.9 985 obtained volume Bragg grating compressor.The stability is measured to be 1.414% when the 35 W. The worthwhile popularize for its good performance inexpensive cost.