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Proceedings Paper

Co- and counter-propagating slow light systems
Author(s): T. Baba; K. Kondo
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Paper Abstract

We report what we call co- and counter propagating slow-light systems based on the high nonlinearity in Si lattice-shifted photonic crystal waveguides (LSPCWs). The intense slow-light pulse, as a control pulse, efficiently generates two-photon absorption and carrier plasma effects, which tunes the dispersion characteristics of the LSPCWs and spectrum of copropagating or counter-propagating slow-light pulse, as a signal pulse. Using the control pulse, we succeeded in experimentally demonstrating adiabatic wavelength conversion and its enhancement, delay tuning of up to 10 ps with a response time <10 ps, and temporal pulse compression of factor 9.9 in the signal pulse. Furthermore, we discussed theoretically the collision and reflection of the signal pulse counterpropagating against the control pulse through the photonic-bandgap shift, resulting in a large Doppler shift. Considering the detail of these phenomena, we clarified the relation and difference between the adiabatic wavelength conversion, cross-phase modulation, and Doppler shift, which have been unclear so far.

Paper Details

Date Published: 7 March 2016
PDF: 17 pages
Proc. SPIE 9763, Slow Light, Fast Light, and Opto-Atomic Precision Metrology IX, 97631C (7 March 2016); doi: 10.1117/12.2220223
Show Author Affiliations
T. Baba, Yokohama National Univ. (Japan)
K. Kondo, Yokohama National Univ. (Japan)

Published in SPIE Proceedings Vol. 9763:
Slow Light, Fast Light, and Opto-Atomic Precision Metrology IX
Selim M. Shahriar; Jacob Scheuer, Editor(s)

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