Enhanced parametric amplification in slow-light photonic crystal waveguides
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- Liu, Y. & Jiang, C. Chin. Sci. Bull. (2009) 54: 2221. doi:10.1007/s11434-009-0369-y
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We demonstrate both theoretically and numerically that slow light can enhance the parametric process of silicon in photonic crystal line-defect waveguides. Specifically, to get the desired gain, the pump power for a given gain medium length or the gain medium length for given pump power can be reduced by (c/vgn)2 when slow light waveguides are used, where n is the material index of conventional waveguide, vg is the group velocity of the slow light waveguide and c is the light velocity in vacuum.