Mode excitation and supercontinuum generation in a few-mode suspended-core fiber.
作者： Igor Shavrin , Steffen Novotny , Hanne Ludvigsen
DOI: 10.1364/OE.21.032141
关键词: Multi-mode optical fiber 、 Optics 、 Doppler broadening 、 Spectral width 、 Excitation 、 Core (optical fiber) 、 Supercontinuum 、 Nonlinear Schrödinger equation 、 Materials science 、 Fiber
摘要: We have studied the excitation of higher-order modes and their role in supercontinuum generation a three-hole silica suspended-core fiber, both experimentally numerically. find that pump coupling optimized to highest transmission can yield substantial higher order modes. With up about 40% power coupled modes, we this fiber. In agreement with experiments, simulation results based on multimode generalized nonlinear Schrodinger equation confirm spectral width is determined by broadening fundamental mode, whereas numerical analysis reveals intermodal interactions are strongly suppressed.
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