Ultrafast tuneable optical delay line based on indirect photonic transitions
Optics
2012-11-29 v1
Abstract
We introduce the concept of an indirect photonic transition and demonstrate its use in a dynamic delay line to alter the group velocity of an optical pulse. Operating on an ultrafast time scale, we show continuously tuneable delays of up to 20 ps, using a slow light photonic crystal waveguide only 300 m in length. Our approach is flexible, in that individual pulses in a pulse stream can be controlled independently, which we demonstrate by operating on pulses separated by just 30 ps. The two-step indirect transition is demonstrated here with a 30% conversion efficiency.
Keywords
Cite
@article{arxiv.1211.6597,
title = {Ultrafast tuneable optical delay line based on indirect photonic transitions},
author = {Daryl M. Beggs and Isabella H. Rey and Tobias Kampfrath and Nir Rotenberg and L. Kuipers and Thomas F. Krauss},
journal= {arXiv preprint arXiv:1211.6597},
year = {2012}
}
Comments
"Copyright (2012) by the American Physical Society."