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High-Quality Ultrashort Pulse Generation Utilizing a Self-Phase Modulation-Based Reshaper
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作者 杨彦甫 娄采云 《Tsinghua Science and Technology》 SCIE EI CAS 2007年第6期757-760,共4页
An ultrashort 10-GHz pulse generation scheme was successfully demonstrated using a bulk material InGaAsP electroabsorption modulator to generate the seed pulse. A self-phase modulation-based reshaper was used after th... An ultrashort 10-GHz pulse generation scheme was successfully demonstrated using a bulk material InGaAsP electroabsorption modulator to generate the seed pulse. A self-phase modulation-based reshaper was used after the adiabatic soliton compression in a comb-like dispersion profiled fiber. Experiments and simulations confirm that the reshaper effectively removes the pulse pedestal and improves the pulse extinction ratio. As a result, the 10-GHz pulse had no pedestal, a high extinction ratio, and a pulse width of only 1.4 ps. 展开更多
关键词 ultrashort pulse generation self-phase modulation soliton compression pulse pedestal
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Backward Raman amplification in plasmas with chirped wideband pump and seed pulses 被引量:1
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作者 吴朝辉 魏晓峰 +5 位作者 左言磊 刘兰琴 张智猛 李敏 周煜梁 粟敬钦 《Chinese Physics B》 SCIE EI CAS CSCD 2015年第1期298-302,共5页
Chirped wideband pump and seed pulses are usually considered for backward Raman amplification(BRA) in plasmas to achieve an extremely high-power laser pulse. However, current theoretical models only contain either a... Chirped wideband pump and seed pulses are usually considered for backward Raman amplification(BRA) in plasmas to achieve an extremely high-power laser pulse. However, current theoretical models only contain either a chirped pump or a chirped seed. In this paper, modified three-wave coupling equations are proposed for the BRA in the plasmas with both chirped wideband pump and seed. The simulation results can more precisely describe the experiments, such as the Princeton University experiment. The optimized chirp and bandwidth are determined based on the simulation to enhance the output intensity and efficiency. 展开更多
关键词 ultrashort pulse generation Raman lasers laser–plasma interactions plasma simulation
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