Tunable Super-Structured Fiber Bragg Gratings with Perfect Sequences Based on m-Sequence

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摘要 Recently,atunablefiberBragggrating(FBG)wasdevelopedbyusingstress-responsivecolloidalcrystals.Inthispaper,wehavesimulatedtheapplicationofthesenanoparticlesintothesuper-structuredfiberBragggrating(SSFBG)writtenwithperfectsequencesderivedfromashortmaximal-lengthsequence.AtunableSSFBGwillbeavailabletoovercometheprohibitivetemperaturevariationoftheopticalcodecs.Nevertheless,wepresentedamethodtoimplementcoherenttimespreadingopticalcode-divisionmultiple-access(OCDMA)whereauniquecode(orperfectsequence)canbereusedandmixedwithdifferentwavelengthstoobtainatunablewavelength-divisionmultiplexing(WDM)system.Inordertomaximizethebinarythroughput,wehaveselectedauniqueshortmaximal-lengthsequencecomposedof7chipsthatcanbetunedwith7differentopticalwavelengths.Wefoundthousandsofdifferenttunablecombinationsthatpresentedpowercontrastratios(P/C)higherthan12dB.WhenaWDM-OCDMAsystemused2differentcombinationssimultaneously,theperfectbinarydetectionwitherrorcorrectioncodeswasachievedsuccessfully.ThetunableSSFBGwithcolloidalcrystalswillbeasimpleandgoodalternativechoiceforfiber-to-the-home(FTTH)communications.
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出版日期 2017年04月14日(中国期刊网平台首次上网日期,不代表论文的发表时间)
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