| 通过调节负载提高RoF系统中大电流光探测器的饱和特性 |
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| 引用本文： | 武庆,熊兵,石拓,孙长征,罗毅. 通过调节负载提高RoF系统中大电流光探测器的饱和特性[J]. 光电子．激光, 2011, 0(12): 1751-1754 |
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| 作者姓名： | 武庆 熊兵 石拓 孙长征 罗毅 |
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| 作者单位： | 清华大学电子工程系清华信息科学与技术国家实验室(筹;清华大学电子工程系清华信息科学与技术国家实验室(筹;清华大学电子工程系清华信息科学与技术国家实验室(筹;清华大学电子工程系清华信息科学与技术国家实验室(筹;清华大学电子工程系清华信息科学与技术国家实验室(筹 |
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| 基金项目： | 国家重点基础研究发展计划(2011CB301902,2011CB301903);国家自然科学基金(60723002,50706022,60977022,51002085);北京市自然科学基金重点项目(4091001);深圳市产学研和公共科技专项(08CXY-14)资助项目 |
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| 摘 要： | 为提高射频光纤通信系统（ROF）中大电流光探测器（PD）的饱和特性，基于等效电路模型，对大电流工作下负载电阻大小对PD饱和特性的影响进行了理论分析，并利用微波负载牵引自动测量系统对PD负载电阻加以调节。通过实验测试了不同负载电阻下PD电压摆幅的变化及其对于探测器饱和特性、响应带宽的影响。理论和测试结果均表明，降低负载电...
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| 关 键 词： | 光探测器(PD) 微波负载牵引自动测量系统 饱和电流 响应带宽 |
Improvement of saturation characteristics of high-photocurrent photodiode for RoF system through load adjustment |
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| WU Qing,XIONG Bing,SHI Tuo,SUN Chang-zheng and LUO Yi. Improvement of saturation characteristics of high-photocurrent photodiode for RoF system through load adjustment[J]. Journal of Optoelectronics·laser, 2011, 0(12): 1751-1754 |
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| Authors: | WU Qing XIONG Bing SHI Tuo SUN Chang-zheng LUO Yi |
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| Affiliation: | National Laboratory of Information Science and Technology,Department of Electronic Engineering,Tsinghua University,Beijing 100084,China;National Laboratory of Information Science and Technology,Department of Electronic Engineering,Tsinghua University,Beijing 100084,China;National Laboratory of Information Science and Technology,Department of Electronic Engineering,Tsinghua University,Beijing 100084,China;National Laboratory of Information Science and Technology,Department of Electronic Engineering,Tsinghua University,Beijing 100084,China;National Laboratory of Information Science and Technology,Department of Electronic Engineering,Tsinghua University,Beijing 100084,China |
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| Abstract: | The loading effect on high-photocurrent photodiode is studied based on equivalent circuit model.Fast and precise tuning of the load of photodiode is realized with the automated load-pull system,and the voltage swing changes due to variation in load impedance and their influence on saturation current and response bandwidth are investigated.Both the theoretical and experimental results show that the saturation current and bandwidth of a photodiode can be improved by reducing its load.It can be expected that the enhanced photodiode performance can be obtained by adopting the reduced load resistance according to application requirements. |
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| Keywords: | photodiode(PD) load-pull system saturation current response bandwidth |
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