%0 Journal Article
%T APD Circuit System for Weak Signal Detection Under Strong Interference<br>采集强干扰下微弱信号的APD电路系统研究
%A WANG Qi-ming
%A JIANG Yan-bing
%A ZHANG Xiu-da
%A YAN Hui-min
%A <br>王启明
%A 姜燕冰 张秀达 严惠民
%J 光子学报
%D 2008
%I 
%X To avoid the strong interference,by controlling the voltage of the avalanche photodiode,an avalanche photodiode (APD) detection system for weak signal is presented.An analysis of the capacitance effect of the APD was performed.It shows that the capacitance effect will lead to a sharp pulse which interferes the weak signal was obtained.In order to eliminate the effect,a new idea that to set low DC reverse voltage which reduces the capacitance change of the APD is proposed.The idea was testified experimentally.
%K Avalanche photodiode
%K Gate circuit
%K Capacitance effect of APD
%K Weak signal detection<br>雪崩光电二极管
%K 门电路
%K 雪崩光电二极管电容效应
%K 探测微弱信号
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=9F6139E34DAA109F9C104697BF49FC39&aid=6181C868EFD2CCE7634DBEF8E8A81FF0&yid=67289AFF6305E306&vid=42425781F0B1C26E&iid=9CF7A0430CBB2DFD&sid=52BD3BD127FE3A27&eid=290C357E8EC0A94B&journal_id=1004-4213&journal_name=光子学报&referenced_num=1&reference_num=6