Inverse design optimisation of fully-etched aluminium nitride grating couplers [Poster]

Kiely, Olivia M., Yağcı, Hüseyin B., Davies-Armstrong, Davey, Cannon, Joseph K., Hadden, John P. ORCID: https://orcid.org/0000-0001-5407-6754 and Bennett, Anthony J. ORCID: https://orcid.org/0000-0002-5386-3710 2026. Inverse design optimisation of fully-etched aluminium nitride grating couplers [Poster]. Presented at: British and Irish Conference on Optics and Photonics, London, UK, 15–18 December 2025. Proceedings British and Irish Conference on Optics and Photonics 2025. Optica Publishing Group,

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Abstract

We have used inverse design to develop fully etched grating couplers for an aluminium nitride on sapphire photonic platform with a coupling efficiency of 17.7% at 1550 nm, a result over triple their linear equivalent.

Item Type:	Conference or Workshop Item - unpublished
Status:	Unpublished
Schools:	Schools > Engineering
Publisher:	Optica Publishing Group
Last Modified:	11 May 2026 09:45
URI:	https://orca.cardiff.ac.uk/id/eprint/186898

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