本文選題：光纖布拉格光柵 + 量化噪聲��； 參考：《激光與紅外》2017年05期

【摘要】：為提高光纖布拉格光柵(FBG)波長解調(diào)精度,建立了"量化噪聲-波長誤差"轉(zhuǎn)換模型,并通過蒙特卡羅方法,對(duì)模型給出的誤差預(yù)測(cè)結(jié)果進(jìn)行了仿真驗(yàn)證。采用16位高精度模數(shù)轉(zhuǎn)換器(ADC)搭建波長解調(diào)實(shí)驗(yàn)電路,誤差分析結(jié)果表明,當(dāng)ADC位數(shù)從6位到16位均勻增長時(shí),波長解調(diào)誤差從41.37 pm到0.34 pm呈指數(shù)下降,與模型計(jì)算和仿真結(jié)果相吻合。仿真及實(shí)驗(yàn)均表明,所提出的"量化噪聲-波長誤差"轉(zhuǎn)換模型能準(zhǔn)確分析量化誤差對(duì)FBG波長解調(diào)精度的影響,為FBG波長解調(diào)儀中模數(shù)轉(zhuǎn)換分辨率的選擇提供設(shè)計(jì)依據(jù)。
[Abstract]:In order to improve the wavelength demodulation accuracy of fiber Prague grating (FBG), a "quantization noise wavelength error" conversion model is set up. Through Monte Carlo method, the error prediction results of the model are simulated. 16 bit high precision analog to digital converter (ADC) is used to build the wavelength demodulation experimental circuit. The error analysis results show that the number of ADC digits From 6 to 16 bits, the wavelength demodulation error decreased exponentially from 41.37 PM to 0.34 PM, which is consistent with the model calculation and simulation results. The simulation and experiment show that the proposed "quantization noise wavelength error" conversion model can accurately analyze the effect of quantization error on the FBG wavelength resolution accuracy and the analog digital conversion in the FBG wavelength demodulator. The selection of resolution provides the basis for design.
【作者單位】： 北京信息科技大學(xué)光電信息與儀器北京市工程研究中心光電測(cè)試技術(shù)北京市重點(diǎn)實(shí)驗(yàn)室;北京信息科技大學(xué)生物醫(yī)學(xué)檢測(cè)技術(shù)及儀器北京實(shí)驗(yàn)室;
【基金】：教育部長江學(xué)者和創(chuàng)新團(tuán)隊(duì)發(fā)展計(jì)劃(No.IRT1212) 北京市科技計(jì)劃項(xiàng)目(No.Z151100003615010) 北京市科技成果轉(zhuǎn)化與產(chǎn)業(yè)化(No.TJSHG201510772016)資助
【分類號(hào)】：TN253

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本文編號(hào)：2074859