Efficient side-coupling into the slow light modes of photonic crystal slot waveguides

Yameng Xu; Dingshan Gao; Xinliang Zhang; Eric Cassan

doi:10.1117/12.2051245

2 May 2014 Efficient side-coupling into the slow light modes of photonic crystal slot waveguides

Yameng Xu, Dingshan Gao, Xinliang Zhang, Eric Cassan

Proceedings Volume 9126, Nanophotonics V; 91261Z (2014) https://doi.org/10.1117/12.2051245
Event: SPIE Photonics Europe, 2014, Brussels, Belgium

Abstract

Silicon hybrid photonics has attracted in the last years a growing interest for the integration of various materials within silicon photonics. In this picture, hollow-core slot photonic crystal waveguides play an important role as they allow an efficient overlap between the high electromagnetic power density of propagating modes and the introduced materials. Besides this potential advantage, part of the cost to pay is that light coupling into such waveguides from strip waveguides becomes difficult. We propose here a strategy in order to efficiently side-couple light into such slow light modes, leading to a typical 80% efficiency at nG=30.

Citation Download Citation

Yameng Xu, Dingshan Gao, Xinliang Zhang, and Eric Cassan "Efficient side-coupling into the slow light modes of photonic crystal slot waveguides", Proc. SPIE 9126, Nanophotonics V, 91261Z (2 May 2014); https://doi.org/10.1117/12.2051245

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