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Study on Ultrashort Laser Pulses Propagating in Birefringent Photonic Crystal Fiber

Author: YaoYanYan
Tutor: LiShuGuang
School: Yanshan University
Course: Condensed Matter Physics
Keywords: Photonic crystal fiber Birefringence Adaptive distribution of the Fourier method Coupled nonlinear Schrodinger equation Supercontinuum Pulse Trapping
CLC: TN253
Type: Master's thesis
Year: 2010
Downloads: 58
Quote: 0
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Abstract


Photonic crystal fiber is a special optical cladding layer having a two - dimensional periodic structure , can not be compared due to the flexible design of the structure , it has the traditional fiber dispersion , nonlinear, and birefringence . These features make it a study of ultrashort laser pulse propagation and nonlinear effects , a key mediator . This thesis is numerically investigated ultrashort laser pulses in photonic crystal fiber transmission, fiber and laser pulse parameters investigated supercontinuum and pulse trapping . The main tasks are as follows: First , to clarify the research background and significance of the basic characteristics of photonic crystal fiber and application prospects . Secondly, the multipole method Numerical study of the basic characteristics of the isosceles triangle grid arrangement of air holes in photonic crystal fiber , discussed the isosceles triangle grid scale factor η and parameters of the pore radius r of the cladding of fiber birefringence dispersion and nonlinear coefficient . Again, the use of adaptive step-by-step Fourier method for solving the two polarization components in the photonic crystal fiber coupled nonlinear Schr?dinger equation , the transmission characteristics of optical pulses in birefringent photonic crystal fiber design anomalous dispersion region was simulated . Pulses in optical fiber transmission length , pulse average power , and the polarization state of the supercontinuum performance . Finally, the pulse trapping in photonic crystal fibers . Incident pulse parameters on the spectral characteristics and pulse capture rate , found improve birefringent photonic crystal fiber pulse trapping method . Of this research for improving the performance of all-optical switching based on pulse trapping , control and optimization of photonic crystal fiber supercontinuum has a certain significance .

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CLC: > Industrial Technology > Radio electronics, telecommunications technology > Photonics technology,laser technology > Optical waveguide and integrated optics > Fiber optic components
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