皮秒电脉冲的产生、测量及在微带中的传输色散  

Generation and measurement of picosecond electrical pulse and the dispersion on stripline

作　　者：肖纲要[1] 刘玉璞[1] 张影华[1] 何慧娟[1] 赵永华[1] 王之江[1] 

机构地区：[1]中国科学院上海光学精密机械研究所,上海201800

出　　处：《光学学报》1993年第10期888-892,共5页Acta Optica Sinica

基　　金：国家自然科学基金

摘　　要：本文描述了Cr:GaAs-LiTaO_3开关——行波普克尔盒的设计结构.用飞秒激光脉冲作激发、探针脉冲,采用电光采样技术,产生并测量到了上升沿约为5ps的超快电脉冲,并从Yamashita的微带设计方程出发,运用准TEM波近似,分析了微带线的色散特性及ps电脉冲在微带中传播时的波形畸变,电脉冲较陡的上升沿在传播过程中被展宽而下降沿变陡.The configuration of optical switch and traveling-wave pockels cell (Cr : GaAs- LiTaO3) is described in this paper. Using Electro-Optic Sampling measurement with fs laser pulse as exciting and sampling beam, we have succeeded in generating and measuring ps ultrashort electrical pulse with a rise-time of 5 ps. Using Yamashita' s stripline design formula and under quasi-TEM mode approximation, we have analyzed the stripline dispersion and the wavefront distortion as the pa electrical pulse travels along the stripline. it is concluded that the short leading edge of ps electrical pulse was broadened and the slow decaying trailing edge was shortened because of the stripline dispersion.

关 键 词：微带 色散 电脉冲 电光效应 

分 类 号：TN241[电子电信—物理电子学]