13 May 2010 Ultrafast adiabatic frequency conversion using slow-light in photonic crystal waveguides
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Proceedings Volume 7713, Photonic Crystal Materials and Devices IX; 77130G (2010); doi: 10.1117/12.854967
Event: SPIE Photonics Europe, 2010, Brussels, Belgium
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, T. F. Krauss, "Ultrafast adiabatic frequency conversion using slow-light in photonic crystal waveguides", Proc. SPIE 7713, Photonic Crystal Materials and Devices IX, 77130G (13 May 2010); doi: 10.1117/12.854967; https://doi.org/10.1117/12.854967
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KEYWORDS
Waveguides

Picosecond phenomena

Silicon

Photonic crystals

Terahertz radiation

Frequency conversion

Ultrafast phenomena

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