| 基于光时分复用的电光模数转换 |
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| 引用本文： | 努尔买买提,王蕾,范修宏,张尚剑,刘永. 基于光时分复用的电光模数转换[J]. 光电子．激光, 2012, 0(7): 1263-1267 |
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| 作者姓名： | 努尔买买提 王蕾 范修宏 张尚剑 刘永 |
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| 作者单位： | 电子薄膜与集成器件国家重点实验室电子科技大学光电信息学院;电子薄膜与集成器件国家重点实验室电子科技大学光电信息学院;电子薄膜与集成器件国家重点实验室电子科技大学光电信息学院;电子薄膜与集成器件国家重点实验室电子科技大学光电信息学院;电子薄膜与集成器件国家重点实验室电子科技大学光电信息学院 |
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| 基金项目： | 国家自然科学基金(60925019,61090393,60907008);中央高校基本科研业务费(ZYGX2009Z002,ZYGX2011X011);国家“973”计划(2011CB301705);教育部新教师基金(200806141102)资助项目 |
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| 摘 要： | 提出了一种基于光时分复用的电光模数转换方案,该方案仅利用一个连续波激光器和电光调制器,结合光纤延迟线实现光信号的时分复用,并通过现有的电子ADC完成模数转换。该方案结构简单,可扩展性高。两路时分复用模数转换系统实验中得到的信号对噪声和失真比为28.5dB,等效于约4.44位的有效位数并分析了造成量化误差的主要因素和减少误差的方法。
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| 关 键 词： | 电光调制 模数转换 光时分复用 |
Optoelectronic analog-to-digital conversion based on optical time division multiplexing |
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| NuErMaimaiTi,Wang Lei,FAN Xiu-hong,ZHANG Shang-jian and Liu Yong. Optoelectronic analog-to-digital conversion based on optical time division multiplexing[J]. Journal of Optoelectronics·laser, 2012, 0(7): 1263-1267 |
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| Authors: | NuErMaimaiTi Wang Lei FAN Xiu-hong ZHANG Shang-jian Liu Yong |
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| Affiliation: | State Key Laboratory of Electronic Thin Films and Integrated Devices,School of Optoelectronic Information,University of Electronic Science & Technology of China,Chengdu,Sichuan,610054,China;State Key Laboratory of Electronic Thin Films and Integrated Devices,School of Optoelectronic Information,University of Electronic Science & Technology of China,Chengdu,Sichuan,610054,China;State Key Laboratory of Electronic Thin Films and Integrated Devices,School of Optoelectronic Information,University of Electronic Science & Technology of China,Chengdu,Sichuan,610054,China;State Key Laboratory of Electronic Thin Films and Integrated Devices,School of Optoelectronic Information,University of Electronic Science & Technology of China,Chengdu,Sichuan,610054,China;State Key Laboratory of Electronic Thin Films and Integrated Devices,School of Optoelectronic Information,University of Electronic Science & Technology of China,Chengdu,Sichuan,610054,China |
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| Abstract: | An optoelectronic analog-to-digital conversion(ADC) approach based on optical time division multiplexing(OTDM) is proposed.The time division multiplexing of optical signal is realized by employing only one continuous wave laser and an electro-optic modulator combined with fiber delay lines(FDLs),and the analog-to-digital conversion is completed through electronic ADCs.The system structure is simple and has good scalability.The ratio of signal to noise and distortion(SINAD) as high as 28.5 dB,which is equivalent to 4.44 effective number of bits(ENOB),is obtained in two-channel OTDM ADC experiments.The main causes of quantization error are analyzed and the methods to improve precision are discussed. |
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| Keywords: | electro-optic modulation analog-to-digital conversion(ADC) optical time division multiplexing(OTDM) |
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