InAs quantum dot-based one- and two-port multimode interference reflectors for integrated photonic devices: design, fabrication, and evaluation

Albeladi, Fwoziah T., Gillgrass, Sara-Jayne, Travers-Nabialek, Josie, Mishra, Pawan, Forrest, Richard, Allford, Craig ORCID: https://orcid.org/0000-0002-3798-9014, Albiladi, Tahani, Shutts, Samuel ORCID: https://orcid.org/0000-0001-6751-7790 and Smowton, Peter M. ORCID: https://orcid.org/0000-0002-9105-4842 2024. InAs quantum dot-based one- and two-port multimode interference reflectors for integrated photonic devices: design, fabrication, and evaluation. Presented at: SPIE OPTO 2024, San Francisco, CA, USA, January 2024. Proceedings Novel In-Plane Semiconductor Lasers XXIII. , vol.12905 SPIE, p. 40. 10.1117/12.3003224

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Abstract

1-port and 2-port multi-mode interference reflectors (MMIR) are excellent components for Photonic Integrated Circuits, being highly reflective and easy to fabricate. We demonstrate InAs-Quantum-Dot MMIR lasers, where the high reflectivity is particularly advantageous, with lower threshold current than Fabry-Perot ridge lasers with the same cavity length e.g. 6mA compared to 46-mA. The threshold current density of the 1-mm MMIR laser is equivalent to the Fabry-Perot laser with a 3-mm cavity length. MMIRs have a higher optical slope efficiency, indicating mirror reflectivity above 85%.

Item Type:	Conference or Workshop Item (Paper)
Date Type:	Published Online
Status:	Published
Schools:	Physics and Astronomy
Publisher:	SPIE
Last Modified:	22 Nov 2024 22:20
URI:	https://orca.cardiff.ac.uk/id/eprint/170151

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