Highly efficient optical filter based on vertically coupled photonic crystal cavity and bus waveguide

Kapil Debnath; Karl Welna; Marcello Ferrera; Kieran Deasy; David G. Lidzey; Liam O'Faolain

doi:10.1364/OL.38.000154

Highly efficient optical filter based on vertically coupled photonic crystal cavity and bus waveguide

Kapil Debnath^*, Karl Welna, Marcello Ferrera, Kieran Deasy, David G. Lidzey, Liam O'Faolain

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

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Abstract

We experimentally demonstrate a new optical filter design based on a vertically coupled photonic crystal (PhC) cavity and a bus waveguide monolithically integrated on the silicon-on-insulator platform. The use of a vertically coupled waveguide gives flexibility in the choice of the waveguide material and dimensions, dramatically lowering the insertion loss while achieving very high coupling efficiencies to wavelength scale resonators and thus allows the creation of PhC-based optical filters with very high extinction ratio (>10 dB).

Original language	English
Pages (from-to)	154-156
Number of pages	3
Journal	Optics Letters
Volume	38
Issue number	2
DOIs	https://doi.org/10.1364/OL.38.000154
Publication status	Published - 15 Jan 2013

Keywords

Nanocavity

Access to Document

10.1364/OL.38.000154

Debnath2013ol-38-2-154
© 2013 Optical Society of America. This paper was published in Optics Letters and is made available as an electronic reprint with the permission of OSA. The paper can be found at http://www.opticsinfobase.org
Final published version, 333 KB

Challening the Limits of Photonics: stru: Challenging the Limits of Photonics: Structured Light
Dholakia, K. (PI), Krauss, T. F. (CoI) & Samuel, I. D. W. (CoI)
EPSRC
1/06/12 → 31/05/17
Project: Standard
Lasing of Erbium in Crystalline silicon: Lasing of Erbium in crystalline silicon Photonic Nanostructures - LECSIN
O'Faolain, L. (PI) & Krauss, T. F. (CoI)
EPSRC
25/02/10 → 24/02/13
Project: Standard
UK Silicon Photonics EP/F001622/1: UK Silicon Photonics
Krauss, T. F. (PI)
EPSRC
1/06/08 → 31/05/13
Project: Standard

Cite this

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abstract = "We experimentally demonstrate a new optical filter design based on a vertically coupled photonic crystal (PhC) cavity and a bus waveguide monolithically integrated on the silicon-on-insulator platform. The use of a vertically coupled waveguide gives flexibility in the choice of the waveguide material and dimensions, dramatically lowering the insertion loss while achieving very high coupling efficiencies to wavelength scale resonators and thus allows the creation of PhC-based optical filters with very high extinction ratio (>10 dB).",

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AU - Debnath, Kapil

AU - Welna, Karl

AU - Ferrera, Marcello

AU - Deasy, Kieran

AU - Lidzey, David G.

AU - O'Faolain, Liam

PY - 2013/1/15

Y1 - 2013/1/15

N2 - We experimentally demonstrate a new optical filter design based on a vertically coupled photonic crystal (PhC) cavity and a bus waveguide monolithically integrated on the silicon-on-insulator platform. The use of a vertically coupled waveguide gives flexibility in the choice of the waveguide material and dimensions, dramatically lowering the insertion loss while achieving very high coupling efficiencies to wavelength scale resonators and thus allows the creation of PhC-based optical filters with very high extinction ratio (>10 dB).

AB - We experimentally demonstrate a new optical filter design based on a vertically coupled photonic crystal (PhC) cavity and a bus waveguide monolithically integrated on the silicon-on-insulator platform. The use of a vertically coupled waveguide gives flexibility in the choice of the waveguide material and dimensions, dramatically lowering the insertion loss while achieving very high coupling efficiencies to wavelength scale resonators and thus allows the creation of PhC-based optical filters with very high extinction ratio (>10 dB).

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DO - 10.1364/OL.38.000154

M3 - Article

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SP - 154

EP - 156

JO - Optics Letters

JF - Optics Letters

IS - 2

ER -

Highly efficient optical filter based on vertically coupled photonic crystal cavity and bus waveguide

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Keywords

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Projects

Challening the Limits of Photonics: stru: Challenging the Limits of Photonics: Structured Light

Lasing of Erbium in Crystalline silicon: Lasing of Erbium in crystalline silicon Photonic Nanostructures - LECSIN

UK Silicon Photonics EP/F001622/1: UK Silicon Photonics

Cite this