学科分类
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3 个结果
  • 简介:Consideringanopticalbistablesystemwithcross-correlatedadditivewhitenoiseandmultiplicativecolorednoise,westudytheeffectsofcorrelationbetweenthenoisesonthecorrelationfunctionC(s)usingtheunifiedcolorednoiseapproximationandtheStratonovichdecouplingansatzformalism.Theeffectsoftheself-correlationtimeTofthemultiplicativecolorednoiseandthecorrelationintensityλbetweenthetwonoisesarestudiedwithnumericalcalculation.ItisfoundthatC(s)increaseswiththeincreaseoftheself-correlationtimeT,butdecreaseswiththeincreaseofthecorrelationintensityλ.AtlargevalueofT,thereisalmostnochangeforC(s)whenTchanges.

  • 标签: 加性白噪声 光学双稳态 有色噪声 相关函数 稳态系统 乘法
  • 简介:Consideringasingle-modelasersystemwithcross-correlatedadditivecolorednoiseandmultiplicativecolorednoise,westudytheeffectsofcorrelationamongnoisesonthenormalizedintensitycorrelationfunctionC(s).C(s)isderivedbymeansoftheprojectionoperatormethod.Theeffectsoftheself-correlationtimeτ_1oftheadditivecolorednoise,τ_2ofthemultiplicativecolorednoise,andtheeffectofthecross-correlationtimeτ_0betweenthetwonoisesonC(s)arediscussedbynumericalcalculation.Forthecaseofpositivecorrelation(λ>0),itisfoundthatwhena_0>0thenormalizedintensitycorrelationfunctionC(s)increaseswiththeincreaseofToorτ_2,andwithvalueofτ_0orτ_2becominglarger,C(s)comestosaturation.Withincreasingtheself-correlationtimeτ_1oftheadditivenoise,aminimumandamaximumwillappearoncurveofC(s)asa_0>0.Ifa_0<0,C(s)decreaseswiththeincreaseofτ_0,τ_1,andτ_2.

  • 标签: 光强度 关联功能 单一激光系统 交叉关联噪音
  • 简介:Wehavestudiedafunction-lockstrategyforall-opticallogicgate(AOLG)utilizingthecross-polarizationmodulation(CPM)effectinasemiconductoropticalamplifier(SOA).Bymonitoringthepoweroflogiclight,thestrategyrealizedcontrollablemethodstocaptureORandNORfunctionsandswitchbetweenthem.Thestrategyhasbeensuccessfullyappliedinexperimentwith10-Gb/snot-return-to-zero(NRZ)signals,whichhasahighsuccess-rateabove95%andensuresthehighextinctionratioofresultlightabove11.4dB.Everystepinthestrategyhasdefinitenumericevaluation,whichprovidesthepotentialofautomaticimplementation.

  • 标签: 功能锁策略 逻辑门 极化调制效应 半导体光学放大器