光子学报, 2005, 34 (9): 1304, 网络出版: 2006-06-12
用于高功率激光装置中的电脉冲整形系统
Electrical Pulse-Shaping System on the High Power Laser System
电脉冲整形系统 微带传输线 GaAs场效应管 Arbitrary waveform generator(AWG) Microstrip GaAs field-effect transistors(FETs)
摘要
采用射频GaAs场效应管和微带传输线技术,研制出用于高功率激光装置中的电脉冲整形系统.该系统电脉冲整形宽度为3.5 ns,幅度在0~5 V范围内调节,时域调整精度200ps.整形后的方波,前沿383 ps,后沿642 ps,顶部不平坦度4~5%,波形幅度稳定性4~5%(p-p).利用该系统产生的整形电脉冲驱动电光波导调制器进行激光脉冲整形,得到了理想的整形激光脉冲.
Abstract
The arbitrary waveform generator(AWG) has been developed by using GaAs field-effect transistors(FETs) and microstrip technology.The shaped electrical waveform can be adjusted.The Full-Width-Half-Maximum(FWHM) is from 0 to 3.5 ns and amplitude from 0 to 5 V.Timing precision is 200 ps.The rise time of the shaped square electrical waveform is 383 ps and the fall time is 642 ps.The top flatness of the pulse is 4~5%.The amplitude stability of the pulse is 4~5%(p-p).The AWG has been applied in the high power laser system successfully.
李东, 刘百玉, 刘进元, 欧阳娴, 白永林, 白晓红, 王琛, 田进寿, 黄蕾, 李辉. 用于高功率激光装置中的电脉冲整形系统[J]. 光子学报, 2005, 34(9): 1304. 李东, 刘百玉, 刘进元, 欧阳娴, 白永林, 白晓红, 王琛, 田进寿, 黄蕾, 李辉. Electrical Pulse-Shaping System on the High Power Laser System[J]. ACTA PHOTONICA SINICA, 2005, 34(9): 1304.