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The Characteristics Research Of Metallic Core Microstructured Fibers

Posted on:2014-06-17Degree:MasterType:Thesis
Country:ChinaCandidate:H Z YanFull Text:PDF
GTID:2268330422463596Subject:Physical Electronics
Abstract/Summary:PDF Full Text Request
With the rapid development of optoelectronics, miniaturization and integration havebecome the development trend of optoelectronic devices. Surface plasmon opticalwaveguides have received much attention in recent years for having the ability to highlyconfine energy. The successful drawing of the first Photonic Crystal Fiber helped to bringabout the appearance of the Metallic Core Microstructured Optical Fiber (MC-MOF), whichis a new kind of surface plasmon optical waveguide. Being able to propagate surfaceplasmon gives MC-MOF many new optical characters which are different from the fibersbefore and has made MC-MOF become the research object of more and more scientificresearch institution.In this article, we begin to introduce the conceptions of surface plasma from the basicelectromagnetic theory. Then we analyze the dispersion characteristics of metallic corecylindrical waveguide before the method to solve the excitation wavelength of the surfaceplasmon polaritons is given. After discussing the influences of different structure parameterson the polarization characteristics of MC-MOF, we get the conclusion that the existence ofthe adjacent metal cores is the essential condition of generating big polarization extinctionratio and the maximum point position of polarization extinction ratio is changing along thediameters of metal core. The simulation results show that optical fiber polarizer atcommunication wavelength can be manufactured from special structured MC-MOF. Afterthat, a plasmonic waveguide is proposed and discussed. According to simulations of surfaceplasmon polariton eigenmodes at varying geometrical transverse parameters, we obtaincomprehensive mode characteristics, includ-ing field mode distribution, effective refractiveindex, propagation length, and lateral mode radius, thus allowing us to investigate the precisetrade-off between propagation length and confinement, which is very important in designingplasmonic waveguides of different applications.There mainstream manufacture methods of MC-MOF are introduced and throughdetailed experimental parameter the drawing method of MC-MOF in this paper is given. Theloss spectra of test result shows there loss peaks which proving the existence of plasmonicwaves in the silver core microstructured fiber. According to simulation result, the location of there loss peaks in the loss spectra correspond to the there excitation wavelengths of thesecond, third and fourth order plasmonic modes respectively.
Keywords/Search Tags:surface plasma, metallic core, excitation wavelength, polarization extinction ratio, confinement, loss
PDF Full Text Request
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