Design and Realization of Uniform Fiber Bragg Grating Used in Dense Wavelength Division Multiplexing Systems

(整期优先)网络出版时间:2002-02-12
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RelationofopticalpropertiesinauniformfiberBragggrating(FBG)withitsgratingparametersandthelaserbeamengravingconditionsisanalyzed.TheprincipleandmethodfordesigningtheuniformFBGusedindensewavelengthpisionmultiplexing(DWDM)systemisgiven.Byadoptingthedoubleexposuretechnique,withauniformphasemaskandGaussianlaserbeam,theuniformFBGusedinDWDMsystemisdesignedandengraved,whosebandwidthofthemainreflectionbandisabout0.4nmand0.7nmat-5dBand-25dBrespectively.