Propagation of ultrashort pulses in a nonlinear two-core photonic crystal fiber
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- Liu, M. & Chiang, K.S. Appl. Phys. B (2010) 98: 815. doi:10.1007/s00340-009-3870-8
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We analyze the propagation of ultrashort pulses in a nonlinear two-core photonic crystal fiber (PCF) by solving a pair of coupled-mode equations that include all the significant linear and nonlinear terms. In particular, we highlight the fact that the coupling coefficient dispersion can cause significant pulse distortion over a short length of a two-core PCF. We also study all-optical switching and multi-frequency generation and obtain a reasonable agreement with recent experimental data.