| 快速电信号的外电光采样测量系统 |
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| 引用本文： | 王云才,王贤华.快速电信号的外电光采样测量系统[J].光子学报,1997,26(3):208-213. |
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| 作者姓名： | 王云才 王贤华 |
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| 作者单位： | 中国科学院西安光机所瞬态光学技术国家重点实验室!西安710068 |
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| 基金项目： | 国家科委攀登计划一飞秒激光技术和超快过程研究资助 |
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| 摘 要： | 建立了小型适用的外电光采样系统,利用增益开关半导体激光器产生的皮秒超短光脉冲做为取样门,以LiTaO3电光探头作为电场传感器,实现了对梳状波电脉冲波形的光学采样测量,测量结果与用采样示波器测量的结果相符.分析了系统的主要性能,获得了25ps的时间分辨率及20mV/√Hz的电压灵敏度.实验分析了电光探头对系统测量精度的影响.同时用该系统测量了共面微带传输线的传输特性.
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| 关 键 词： | 电光效应 增益开关半导体激光器 采样原理 |
| 收稿时间： | 1996-05-28 |
MEASUREMENT OF FAST ELECTRONIC PULSES WITH EXTERNAL ELECTRO-OPTIC SAMPLING |
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| Wang Yuncai,Wang Xianhua,Chen Guofu.MEASUREMENT OF FAST ELECTRONIC PULSES WITH EXTERNAL ELECTRO-OPTIC SAMPLING[J].Acta Photonica Sinica,1997,26(3):208-213. |
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| Authors: | Wang Yuncai Wang Xianhua Chen Guofu |
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| Institution: | State Key Lab. of Transient optics Technology, Xi’an institute of Optics & Precision Mechanics Xi’an 710068 |
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| Abstract: | A external electro-optic sampling system utilizing gain-switched laser diode is reported. Comb pulses were measured utilizing ultrashort optical pulses as"sampling gate"via the Pockels effect in LiTaO_3 probe. A comparison with Tektronix sampling oscilloscope demonstrated good agreement and this system has 2 5 ps temporal resolution and 2 0 mV / (Hz)~(1/2) sensitivity. The accuracy and invasiveness of LiTaO_3, probe is investigated. The dispersion of coplanar stripline is characterized by this system. |
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| Keywords: | Pockels effect Gain-switched LD Electro-optic sampling |
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