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Dataset for photonic crystal and quasi-crystals providing simultaneous light coupling and beam splitting within a low refractive-index slab waveguide

Dataset for photonic crystal and quasi-crystals providing simultaneous light coupling and beam splitting within a low refractive-index slab waveguide
Dataset for photonic crystal and quasi-crystals providing simultaneous light coupling and beam splitting within a low refractive-index slab waveguide
Dataset supports: Shi, J. et al (2017). Photonic crystal and quasi-crystals providing simultaneous light coupling and beam splitting within a low refractive-index slab waveguide. Scientific Reports, 7(1), [1812].Coupling between free space components and slab waveguides is a common requirement for integrated optical devices, and is typically achieved by end-fire or grating coupling. Power splitting and distribution requires additional components. Usually grating couplers are used in combination with MMI/Y-splitters to do this task. In this paper, we present a photonic crystal device which performs both tasks simultaneously and is able to couple light at normal incidence and near normal incidence. Our approach is scalable to large channel counts with little impact on device footprint. We demonstrate in normal incidence coupling with multi-channel splitting for 785 nm light. Photonic crystals are etched into single mode low refractive index SiON film on both SiO2/Si and borosilicate glass substrate. Triangular lattices are shown to provide coupling to 6 beams with equal included angle (60°), while a quasi-crystal lattice with 12-fold rotational symmetry yields coupling to 12 beams with equal included angle (30°). We show how to optimize the lattice constant to achieve efficient phase matching between incident and coupled mode wave vectors, and how to adjust operating wavelength from visible to infrared wavelengths.
University of Southampton
Shi, Jingxing
2632e5a1-10ba-4b05-9bec-f86facfcee66
Pollard, Michael
6b1730b7-b553-4de5-afa3-3f5e3a81889e
Angeles Ruiz, Cesar, Arturo
0472efc4-ba37-4e96-a7f7-91957d9a3ddf
Chen, Rui
941fa635-535a-425b-86bb-3ef9476bb571
Gates, James
b71e31a1-8caa-477e-8556-b64f6cae0dc2
Charlton, Martin
fcf86ab0-8f34-411a-b576-4f684e51e274
Shi, Jingxing
2632e5a1-10ba-4b05-9bec-f86facfcee66
Pollard, Michael
6b1730b7-b553-4de5-afa3-3f5e3a81889e
Angeles Ruiz, Cesar, Arturo
0472efc4-ba37-4e96-a7f7-91957d9a3ddf
Chen, Rui
941fa635-535a-425b-86bb-3ef9476bb571
Gates, James
b71e31a1-8caa-477e-8556-b64f6cae0dc2
Charlton, Martin
fcf86ab0-8f34-411a-b576-4f684e51e274

Shi, Jingxing, Pollard, Michael, Angeles Ruiz, Cesar, Arturo, Chen, Rui, Gates, James and Charlton, Martin (2018) Dataset for photonic crystal and quasi-crystals providing simultaneous light coupling and beam splitting within a low refractive-index slab waveguide. University of Southampton doi:10.5258/SOTON/D0059 [Dataset]

Record type: Dataset

Abstract

Dataset supports: Shi, J. et al (2017). Photonic crystal and quasi-crystals providing simultaneous light coupling and beam splitting within a low refractive-index slab waveguide. Scientific Reports, 7(1), [1812].Coupling between free space components and slab waveguides is a common requirement for integrated optical devices, and is typically achieved by end-fire or grating coupling. Power splitting and distribution requires additional components. Usually grating couplers are used in combination with MMI/Y-splitters to do this task. In this paper, we present a photonic crystal device which performs both tasks simultaneously and is able to couple light at normal incidence and near normal incidence. Our approach is scalable to large channel counts with little impact on device footprint. We demonstrate in normal incidence coupling with multi-channel splitting for 785 nm light. Photonic crystals are etched into single mode low refractive index SiON film on both SiO2/Si and borosilicate glass substrate. Triangular lattices are shown to provide coupling to 6 beams with equal included angle (60°), while a quasi-crystal lattice with 12-fold rotational symmetry yields coupling to 12 beams with equal included angle (30°). We show how to optimize the lattice constant to achieve efficient phase matching between incident and coupled mode wave vectors, and how to adjust operating wavelength from visible to infrared wavelengths.

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More information

Published date: 2018
Organisations: School of Electronics and Computer Science, Photonic Systems Circuits and Sensors Group

Identifiers

Local EPrints ID: 423272
URI: https://eprints.soton.ac.uk/id/eprint/423272
PURE UUID: deb303ce-a657-4e44-b103-b5f805d9304d
ORCID for James Gates: ORCID iD orcid.org/0000-0001-8671-5987

Catalogue record

Date deposited: 19 Sep 2018 16:31
Last modified: 06 Oct 2018 00:37

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Contributors

Creator: Jingxing Shi
Creator: Michael Pollard
Creator: Cesar, Arturo Angeles Ruiz
Creator: Rui Chen
Creator: James Gates ORCID iD
Creator: Martin Charlton

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