CN 11-2436/TN
ISSN 1001-5078

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基于光纤布拉格光栅的超宽带信号产生方法分析
Analysis of UWB signal generating method based on fiber Bragg grating
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中文关键词  超宽带信号  光纤布拉格光栅  光电探测器  功率谱密度
英文关键词  ultra-wideband  fiber Bragg grating  photodetector  power spectral density
基金项目  四川省教育厅自然科学基金项目(No.15ZB0320)资助
作者单位
税奇军,唐炳华 四川文理学院智能制造学院,四川 达州 635000 
中文摘要
      超宽带信号因其具有穿透小尺度障碍物、高时间分辨力和高速数据传输率等特点,被广泛应用于传感器网络、医疗监控、精准导航、车载雷达等民用和军用系统中,基于全光分析方法产生超宽带信号已经成为目前国内外的研究热点。在以光纤布拉格光栅为核心器件的系统模型上进行了理论和仿真分析,在系统的光电探测器输出端产生了半高宽约为41 ps,功率谱密度小于-45 dB/MHz的超宽带信号。并分析了单模光纤长度对产生的超宽带信号的影响。
英文摘要
      Ultra-wideband signal has been widely used in civil and military systems such as sensor networks,medical monitoring,precision navigation and vehicle radar,because of its capacity of penetrating small-scale obstacles,high temporal resolution and high-speed rate of data transfer.The researches on ultra-wideband signal generating method based on the all-optical analysis have become a research hotspot at home and abroad.Based on the theoretical and simulating analysis of the system model with optical fiber Bragg grating as its core device,this research shows that the half-high width of ultra-wideband signal produced by the photodetector is about 41 ps,and the power spectral density is less than -45 dB/MHz.And the effect of single-mode fiber length on ultra-wideband signal has also been analyzed.

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