Fabrication And Experimental Research Of Tapered Optical Fiber

This paper researched for the way of tapering optical fiber basing on graphene heating device,controlling parameters which affect the result of tapering,through setting different parameters,fabricate different kinds of taper structure optical fiber,M-Z interferometer contains two taper structure,asymmetry LPFG structure,and theirs strain and temperature experiments.1.Basing graphene heating device tapering method,analysis parameters which affect the result of tapering,through controlling heating temperature,tapering speed and tapering time of duration,fabricate different optical taper structure,and research about temperature influence to thickness of fiber,tapering speed influence to the length of taper.2.Changing parameters of temperature and speed in tapering to make a difference to the sixth an fourth period of the LPFG,using the method of tapering by heating to fabricate LPFG contain six period and three types of taper structure and name it asymmetry LPFG.3.Analysis three types of the taper structure and spectum of the asymmetry LPFG,get a 3-W spectum,there are six center wavelength in the whole spectum,temperature sensing character of the neighbor center wavelength is almost the same but strain sensing character is totally different,the strain sensitivity of two neighboring center wavelength is respectively are 7pm/?? and 0pm/??.4.Fabricate M-Z interferometer contains two taper through heating tapering method,analysis the interference spectum and morphology,and completed temperature sensing experiments.Then Coating PDMS to M-Z interferometer and do temperature experiments.