Numerical study of gain equalization in burst-mode Yb^(3+)-doped fiber amplifier with pulse pump by FDTD method  

作　　者：ZHU Longfei LI Caiyun LIU Yange XING Dengke ZHANG Luhe ZHU Kaiyan WANG Zhi 朱龙飞;李彩云;刘艳格;邢登科;张露鹤;朱开颜;王志(Tianjin Key Laboratory of Optoelectronic Sensor Sensing Network Technology,Institute of Modern Optics,Nankai University,Tianjin 300350,China)

机构地区：[1]Tianjin Key Laboratory of Optoelectronic Sensor Sensing Network Technology,Institute of Modern Optics,Nankai University,Tianjin 300350,China

出　　处：《Optoelectronics Letters》2021年第8期496-500,共5页光电子快报（英文版）

基　　金：supported by the National Key Research and Development Program of China(No.2018YFB0504400);the National Natural Science Foundation of China(Nos.61775107,11674177,61640408);the Tianjin Natural Science Foundation(No.19JCZDJC31200)。

摘　　要：The amplifying dynamics of the pulse burst in Yb^(3+)-doped fiber amplifier(YDFA)with high-power pulse pump is numerically analyzed by a finite-difference time-domain(FDTD)method.The numerical simulations show that the amplitude uniformity of the amplified pulse burst can be modified by adjusting the parameters of pump,such as relative delay and power.Though optimizing the pump parameters,we can reduce the gain difference between the pulses in a burst and improve the efficiency of coherent pulse stacking based on Gires-Tournois interferometers(GTIs).These results can be applied to the design of high energy ultra-short pulse amplifiers based on burst-mode amplification and coherent pulse stacking technology.

关 键 词：PUMP AMPLIFIER PULSE 

分 类 号：TN722[电子电信—电路与系统]