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

Fwoziah T. Albeladi; Sara-Jayne Gillgrass; Josie Travers-Nabialek; Pawan Mishra; Richard Forrest; Craig Allford; Tahani Albiladi; Samuel Shutts; Peter Smowton

doi:10.1117/12.3003224

13 March 2024 InAs quantum dot-based one- and two-port multimode interference reflectors for integrated photonic devices: design, fabrication, and evaluation

Fwoziah T. Albeladi, Sara-Jayne Gillgrass, Josie Travers-Nabialek, Pawan Mishra, Richard Forrest, Craig Allford, Tahani Albiladi, Samuel Shutts, Peter Smowton

Author Affiliations +

Proceedings Volume PC12905, Novel In-Plane Semiconductor Lasers XXIII; PC129050G (2024) https://doi.org/10.1117/12.3003224
Event: SPIE OPTO, 2024, San Francisco, California, United States

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%.

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Fwoziah T. Albeladi, Sara-Jayne Gillgrass, Josie Travers-Nabialek, Pawan Mishra, Richard Forrest, Craig Allford, Tahani Albiladi, Samuel Shutts, and Peter Smowton "InAs quantum dot-based one- and two-port multimode interference reflectors for integrated photonic devices: design, fabrication, and evaluation", Proc. SPIE PC12905, Novel In-Plane Semiconductor Lasers XXIII, PC129050G (13 March 2024); https://doi.org/10.1117/12.3003224

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KEYWORDS

Reflectors

Fabrication

Integrated photonics

Quantum devices

Quantum interference

Design and modelling

Indium arsenide

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