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sB:Chemical,InPress,CorrectedProof,Availableonline26November2016Novelbroadbanddispersionpensatingphotoniccrystalfibers:Applicationsinhigh-speedtransmissionsystems
Keywords:Photoniccrystalfibers(PCFs),Finite-differencemethod,Chromaticdispersion
Abstract:Thispaperrevealsanoveldispersionpensatingphotoniccrystalfiber(DC-PCF)forwide-bandhigh-speedtransmissionsystems.Thefinite-differencemethodwithananisotropicperfectlymatchedabsorbinglayersboundaryconditionisusedtoinvestigatetheguidingproperties.ThedesignednovelDC-PCFshowsthatitispossibletoobtainalargernegativedispersioncoefficient,betterdispersionslopepensation,andconfinementlosseslessthan104dB/mintheentireS+C+Ltelemunicationbandbyusingamodestnumberofdesignparameters.Theproposedmodulecanbeusedin40Gb/sdensewavelengthdivisionmultiplexing(DWDM)systemsinopticalfibermunicationworks.
Source:Optics&,LaserTechnologyVolume41,Issue6,September2016,Pages679-686
Numericallystudyofshortwavelengthfilteringofadepressed-indexcorephotoniccrystalfiber
Keywords:Bendingloss,Edgesteepness,Longpassfilter,Photonicbandgapfiber,Photonic
激光技术类有关论文范文集
Abstract:Shortwavelengthfilteringbasedontheanti-guidepropertyofadepressed-indexcorephotoniccrystalfiberisstudied.Atypeoffiberfilterisformedbyaddingadepressed-indexdomaintothecoreofanindex-guidingphotoniccrystalfiber.Thedependenciesofnormalizedcutoffwavelengthandedgesteepnessonthestructuralparametersofthefiberfilterareinvestigated.Abetterqualityofcutoff(loweredgesteepness),alargernormalizedcutoffwavelengthandawiderrangeofnormalizedcutoffwavelengthcanberealizedbyincreasingtherelativecladdingair-holediameter.Fiberfilterswiththenormalizedcutoffwavelength(cutoffwavelength/pitch)covering0.0514to0.5andtheedgesteepnessbelow5%(industrystandard)aredemonstratednumerically.Inaddition,bendingeffectandproblemcausedbytheexistenceofthephotonicbandgapmodewhichmayinfluencethefeasibilityofthefilteringmechanismareconsidered.
Source:SensorsandActuatorsB:ChemicalVolume143,Issue1,4December2016,Pages35-41
Designandanalysisofthermallytunableliquidcrystalfilledhybridphotoniccrystalfibercoupler
Keywords:Hybridphotoniccrystalfiber(PCF),Nematicliquidcrystal(NLC),Tunablecoupler,Finiteelementmethod(FEM),Beampropagationmethod(BPM)
Abstract:Weproposeanoveltunablephotoniccrystalfiber(PCF)couplerscheme,thatthelightiscoupledbetweenatotalinternalreflection(TIR)guidingcoreandaphotonicbandgap(PBG)guidingcore.Byintroducingthethermo-opticresponsivenematicliquidcrystals(NLC)intotheairholesaroundthePBGcore,thehybridPCFbasedcouplerexhibitsenhancedthermaltunability.Thethermo-opticalcharacteristicsoftheproposedcouplerarenumericallystudiedusingfiniteelementmethod(FEM)andbeampropagationmethod(BPM).Theproposeddesigncanfindpromisingapplicationsinfilteringandsensingdevices.
Source:OpticsCommunicationsVolume282,Issue12,15June2016,Pages2343-2347
Ultra-widebandsingle-polarizationsingle-mode,highnonlinearityphotoniccrystalfiber
Keywords:Single-polarization,Highnonlinearity,Photoniccrystalfiber(PCF)
Abstract:Wereportanoveldesignofphotoniccrystalfiber(PCF)witharectangulararrayoffourclosely-spaced,highlyellipticalairholesinthecoreregionandacircular-air-holecladding.TheproposedPCFisabletosupportultra-widebandsingle-polarizationsingle-mode(SPSM)transmissionfromthevisiblebandtothenearinfraredband.Withtheaidoftheinnercladdingformedbythecentralairholes,onepolarizationofthefundamentalmodecanbecutoffatveryshortwavelengthsandultra-widebandSPSMpropagationcanbeachieved.TheinnercladdingalsosuppressesthehigherordermodesandallowslargeairfillingfractionintheoutercladdingwhiletheproposedfiberremainsSPSM,whichsignificantlyreducesthemodeeffectiveareaandtheconfinementloss.OursimulationresultsindicatethattheproposedPCFhasa1540nmSMSPrangewith<,0.25dB/kmconfinementlossandaneffectiveareaof2.2μm2.Moreover,thegroupvelocitydispersion(GVD)oftheproposedPCFcanalsobetunedtobeflatandnearzeroatthenearinfraredband(800nm)byoptimizingtheoutercladdingstructure,potentiallyenablingmanynonlinearapplications.
Source:OpticsCommunicationsVolume282,Issue16,15August2016,Pages3266-3269
Simultaneousstrainandtemperaturemeasurementusingahighlybirefringencefiberloopmirrorandalong-periodgratingwritteninaphotoniccrystalfiber
Keywords:Long-periodgrating,Fiberloopmirror,Photoniccrystalfiber,Opticalfibersensor
Abstract:Wepresentanewdesignforsimultaneousstrainandtemperaturemeasurementusingahigh-birefringencefiberloopmirror(HiBi-FLM)concatenatedwithatemperature-insensitivelong-periodgrating(LPG)writteninaphotoniccrystalfiber(PCF).TheFLMactsasasensorhead,whiletheLPGinPCFservesasafiltertoconvertwavelengt
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