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Revealing the behavior of soliton buildup in a mode-locked laser

Advanced Photonics 2019年第1期1卷 58-71页

作者： Xueming Liu Yudong Cui Zhejiang University College of Optical Science and EngineeringState Key Laboratory of Modern Optical InstrumentationHangzhouChina Nanjing University of Aeronautics and Astronautics Institute for Advanced Interdisciplinary ResearchNanjingChina Hunan University of Science and Technology School of Physics and Electronic ScienceXiangtanChina

Real-time spectroscopy based on an emerging time-stretch technique can map the spectral information of optical waves into the time domain,opening several fascinating explorations of nonlinear dynamics in mode-locked ***,the self-starting process of mode-locked lasers is quite sensitive to environmental perturbation,which causes the transient behaviors of lasers to deviate from the true buildup process of *** optimize the laser system to improve its stability,which suppresses the Q-switched lasing induced by environmental ***,therefore,demonstrate the first observation of the entire buildup process of solitons in a mode-locked laser,revealing two possible pathways to generate the temporal *** pathway includes the dynamics of raised relaxation oscillation,quasimode-locking stage,spectral beating behavior,and finally the stable single-soliton *** other pathway contains,however,an extra transient bound-state stage before the final single-pulse modelocking ***,we propose a theoretical model to predict the buildup time of solitons,which agrees well with the experimental *** findings can bring real-time insights into ultrafast fiber laser design and optimization,as well as promote the application of fiber laser.

关键词： fiber laser mode-locking self-starting process relaxation oscillation real-time spectroscopy

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self-starting analysis of new energy system with wind power and energy storage

Self-starting analysis of new energy system with wind power ...

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第37届中国控制会议

作者： Aihua Wang Hong Gang Peng Qiu Xiaole Luo Xinfu Pang Ce Zhang Jinzhou Power Supply Company Liaoning Electric Power Company Key Laboratory of Energy Saving & Controlling Power System of Liaoning Province Shenyang Institute of Engineering

Power grid is developing towards the direction of intelligence. Nevertheless, the giant grid scale, complicated structure and external natural factors result in the potential of large-scaled power failure. Traditional black start power gives priority to hydropower. In areas with shortage of hydro power resources, suitable black start power is insufficient. The key of black start is able to realize the safe and stable operation of wind power and energy storage cogeneration system. Due to the combination of wind turbines and energy storage is a small system, energy storage, as a black start power source, starts the wind turbines together to supply power for the remote load. Therefore, it is necessary to run the balance and stable operation of a small system. In this paper, PSCAD simulation software is employed to conduct modeling of wind power and energy storage system,and the self-starting process of wind storage cogeneration system is analyzed by using resistance sensor as the load. The result verifies the wind power storage system’s initiation process.

关键词： Wind Power Energy Storage self-starting process PSCAD Simulation balance operation

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