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12 May 2010 Ultrafast adiabatic frequency conversion using slow-light in photonic crystal waveguides
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Abstract
By performing an ultrafast pump-probe experiment, we demonstrate the adiabatic frequency conversion of a telecommunications pulse in a silicon photonic crystal waveguide. By using slow-light modes to spatially compress the pulse, a 1.3 ps long pulse is blue-shifted by 0.3 THz with 80% efficiency in a waveguide just 19 μm long. We also present the results of an adiabatic model of the process, which agrees excellently with the experimentally measured data.
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D. M. Beggs, T. Kampfrath, L. Kuipers, and T. F. Krauss "Ultrafast adiabatic frequency conversion using slow-light in photonic crystal waveguides", Proc. SPIE 7713, Photonic Crystal Materials and Devices IX, 77130G (12 May 2010); https://doi.org/10.1117/12.854967
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