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Proceedings Paper

Highly efficient coupling between a monolithically integrated photonic crystal cavity and a bus waveguide
Author(s): Kapil Debnath; Karl Welna; Marcello Ferrera; Kieran Deasy; David Lidzey; Thomas F. Krauss; Liam O'Faolain
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Paper Abstract

We experimentally demonstrate a new optical filter design comprising of a photonic crystal cavity and a low index bus waveguide which are monolithically integrated on a silicon-on-insulator (SOI) platform. We have fabricated oxide clad PhC cavities with a silicon nitride waveguide positioned directly above, such that there is an overlap between the evanescent tails of the two modes. We have realised an extinction ratio of 7.5dB for cavities with total Q of 50,000.

Paper Details

Date Published: 2 February 2012
PDF: 6 pages
Proc. SPIE 8264, Integrated Optics: Devices, Materials, and Technologies XVI, 82640F (2 February 2012); doi: 10.1117/12.909389
Show Author Affiliations
Kapil Debnath, Univ. of St. Andrews (United Kingdom)
Karl Welna, Univ. of St. Andrews (United Kingdom)
Marcello Ferrera, Univ. of St. Andrews (United Kingdom)
Kieran Deasy, The Univ. of Sheffield (United Kingdom)
David Lidzey, The Univ. of Sheffield (United Kingdom)
Thomas F. Krauss, Univ. of St. Andrews (United Kingdom)
Liam O'Faolain, Univ. of St. Andrews (United Kingdom)


Published in SPIE Proceedings Vol. 8264:
Integrated Optics: Devices, Materials, and Technologies XVI
Jean Emmanuel Broquin; Gualtiero Nunzi Conti, Editor(s)

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