Design of dispersion controlled optical fibers for wavelength division multiplexed optical communication system
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In a large capacity wavelength division multiplexed system, the dispersion in optical fiber is one of critical parameters that determine the efficiency of nonlinear interactions as well as the transmission distance. In this study two types of dispersion controlled fibers were rigorously analyzed. For dual mode fiber that supports both the fundamental mode LP01 and the first excited mode LP11, exact eigen values of the vectorial Maxwell’s equations were numerically obtained. The dispersion characteristics have been rigorously analyzed for various index profiles including the effects of material dispersion of cladding and core for the applications in dispersion compensation. A new non-zero dispersion fiber design has been developed to optimize both linear and nonlinear distortions in the 1.5μm EDFA gain band to improve the performance of wavelength division multiplexed system. Index terms-optical fiber, dispersion, waveguide design, nonlinearity in optical fiber
Abstract
In a large capacity wavelength division multiplexed system, the dispersion in optical fiber is one of critical parameters that determine the efficiency of nonlinear interactions as well as the transmission distance. In this study two types of dispersion controlled fibers were rigorously analyzed. For dual mode fiber that supports both the fundamental mode LP01 and the first excited mode LP11, exact eigen values of the vectorial Maxwell’s equations were numerically obtained. The dispersion characteristics have been rigorously analyzed for various index profiles including the effects of material dispersion of cladding and core for the applications in dispersion compensation. A new non-zero dispersion fiber design has been developed to optimize both linear and nonlinear distortions in the 1.5μm EDFA gain band to improve the performance of wavelength division multiplexed system. Index terms-optical fiber, dispersion, waveguide design, nonlinearity in optical fiber