高灵敏度量子点-量子阱光电探测器的大动态范围读出设计  

Wide Dynamic Range Readout Circuit Design on High Sensitivity Quantum Dot-in-Well Photodetector

作　　者：王永攀[1] 郭方敏[1] 

机构地区：[1]华东师范大学信息科学技术学院极化材料与器件教育部重点实验室,上海200241

出　　处：《红外技术》2011年第6期336-339,共4页Infrared Technology

基　　金：科技部重大项目;编号:2006CB932802;2011CB932903;上海市科委;编号:078014194

摘　　要：针对高灵敏度量子点-量子阱光电器件宽动态的光电响应特性,进行大的动态范围读出设计,对比分析了不同积分电容的CTIA读出结构的测试结果,设计一款低噪声增益自动可调放大器的读出结构,使输出动态范围扩展了26 dB,,获得较好的读出信噪比。Focused on high sensitivity property of the optoelectronic devices with quantum dots in quantum well,wide dynamic range readout circuits were designed.Test results of the Capacitive Trans-Impedance Amplifier（CTIA） structure with different integration capacitances were compared.A low noise amplifier readout structure whose gain can be automatically adjusted is designed.The output dynamic range can be extended by 26 dB,which can achieve high signal to noise ratio.

关 键 词：量子点-量子阱光电探测器 动态范围 灵敏度 信噪比 低噪声增益可调放大器读出 

分 类 号：TN41[电子电信—微电子学与固体电子学]