Cao, Y. orcid.org/0000-0002-6353-7660, Blain, T. orcid.org/0000-0002-7974-7355, Taylor-Mew, J.D. orcid.org/0000-0002-0895-2968 et al. (3 more authors) (2023) Extremely low excess noise avalanche photodiode with GaAsSb absorption region and AlGaAsSb avalanche region. Applied Physics Letters, 122 (5). ISSN 0003-6951
Abstract
An extremely low noise Separate Absorption and Multiplication Avalanche Photodiode (SAM-APD), consisting of a GaAs0.52Sb0.48 absorption region and an Al0.85Ga0.15As0.56Sb0.44 avalanche region, is reported. The device incorporated an appropriate doping profile to suppress tunneling current from the absorption region, achieving a large avalanche gain, ∼130 at room temperature. It exhibits extremely low excess noise factors of 1.52 and 2.48 at the gain of 10 and 20, respectively. At the gain of 20, our measured excess noise factor of 2.48 is more than three times lower than that in the commercial InGaAs/InP SAM-APD. These results are corroborated by a Simple Monte Carlo simulation. Our results demonstrate the potential of low excess noise performance from GaAs0.52Sb0.48/Al0.85Ga0.15As0.56Sb0.44 avalanche photodiodes.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2023 Author(s). All article content, except where otherwise noted, is licensed under a Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). |
Dates: |
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Institution: | The University of Sheffield |
Academic Units: | The University of Sheffield > Faculty of Engineering (Sheffield) > Department of Electronic and Electrical Engineering (Sheffield) |
Funding Information: | Funder Grant number ENGINEERING AND PHYSICAL SCIENCE RESEARCH COUNCIL EP/N020715/1 ENGINEERING AND PHYSICAL SCIENCE RESEARCH COUNCIL EP/K001469/1 |
Depositing User: | Symplectic Sheffield |
Date Deposited: | 01 Feb 2023 12:12 |
Last Modified: | 01 Feb 2023 12:12 |
Status: | Published |
Publisher: | AIP Publishing |
Refereed: | Yes |
Identification Number: | 10.1063/5.0139495 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:195921 |