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Design And Optimization Of Three Kinds Of Photonic Crystal Fibers Based On Optical Wavelengths With Quartz Material

Posted on:2016-02-26Degree:MasterType:Thesis
Country:ChinaCandidate:W ZhangFull Text:PDF
GTID:2308330479950636Subject:Optics
Abstract/Summary:PDF Full Text Request
The photonic crystal fiber because of its flexible design and unique light principles in the field of optical communication optoelectronic devices has attracted great interests. Through designing the structure of photonic crystal fiber or filling metal or other materials in the cladding, not only the performance of the photonic crystal fiber has been optimized, but also the scope of its application can be greatly expanded. Quartz glass is a kind of materials which is in optical bands with very low loss and can be easily pulled into the special optical fibers. In this paper, the three kinds of photonic crystal fibers with quartz material and the rectangular lattice have been designed using the finite element method. These optical fibers have excellent performance in optical communication bands. It is expected to provide certain references for the development of new photonic devices or theoretical guidance. The main contents are described as follows:Firstly, the basic theory, preparation methods, the basic features of photonic crystal fiber have been summarized and its current research situation and application prospect have been introduced.Secondly, starting from the Maxwell equations, the waveguide theory of light transmission in photonic crystal fibers were analyzed. Then a novel design of photonic crystal fiber with the rectangular lattice has been proposed. Its birefringence and dispersion characteristics are simulated. By adjusting the structural parameters, the zero dispersion wavelength has been adjusted to the optical communication bands and high birefringence is gained in the communication bands.Thirdly, a novel design of Au-filled photonic crystal fiber with square-lattice has been proposed. The principle of surface plasmon excitation in such a metal-filled fiber is introduced. And by adjusting the parameters of the fiber, the good characteristics of polarization filter are obtained in communication bands.Finally, a design for single-polarization single-mode photonic crystal fiber with rectangular lattice is proposed which is simulated by finite element method. By adjusting the parameters, the preferably characteristics of single-mode single-polarization are obtained at the wavelength of 1.55μm.
Keywords/Search Tags:Photonic crystal fibers, Finite element method, surface plasmon, polarizing filter, single-mode single-polarization
PDF Full Text Request
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