Low-loss III-V photonics and high efficiency grating couplers incorporating low-index AlOx layers

Albeladi, F. T., Gillgrass, S., Nabialek, J., Hodges, C. ORCID: https://orcid.org/0000-0002-4993-4547, Tang, M., Deng, H., Liu, H -Y., Shutts, S. ORCID: https://orcid.org/0000-0001-6751-7790 and Smowton, P. M. ORCID: https://orcid.org/0000-0002-9105-4842 2023. Low-loss III-V photonics and high efficiency grating couplers incorporating low-index AlOx layers. Presented at: 2023 IEEE Photonics Conference (IPC), 12-16 November 2023. Proceedings 2023 IEEE Photonics Conference (IPC). IEEE, 10.1109/IPC57732.2023.10360787

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Abstract

A SGC with 30% coupling efficiency is designed for a QD-GaAs-based optoelectronics integration platform using thin oxidized Al 0.98 Ga 0.02 As layers to overcome the otherwise poor refractive index contrast. coupling efficiency increased from 10% for the unoxidized equivalent and is suitable for outcoupling in active-passive integrated platforms.

Item Type:	Conference or Workshop Item (Paper)
Date Type:	Published Online
Status:	Published
Schools:	Physics and Astronomy
Publisher:	IEEE
ISBN:	979-8-3503-4722-7/23
Date of First Compliant Deposit:	21 March 2024
Date of Acceptance:	25 December 2023
Last Modified:	22 Apr 2024 01:30
URI:	https://orca.cardiff.ac.uk/id/eprint/167437

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