UCL Discovery
UCL home » Library Services » Electronic resources » UCL Discovery

High performance waveguide uni-travelling carrier photodiode grown by solid source molecular beam epitaxy

Lin, X; Natrella, M; Seddon, J; Graham, C; Renaud, CC; Tang, M; Wu, J; ... Seeds, AJ; + view all (2019) High performance waveguide uni-travelling carrier photodiode grown by solid source molecular beam epitaxy. Optics Express , 27 (25) p. 37065. 10.1364/oe.27.037065. Green open access

[thumbnail of Seddon_High performance waveguide uni-travelling carrier photodiode grown by solid source molecular beam epitaxy_VoR.pdf]
Preview
Text
Seddon_High performance waveguide uni-travelling carrier photodiode grown by solid source molecular beam epitaxy_VoR.pdf - Published Version

Download (2MB) | Preview

Abstract

The first waveguide coupled phosphide-based UTC photodiodes grown by Solid Source Molecular Beam Epitaxy (SSMBE) are reported in this paper. Metal Organic Vapour Phase Epitaxy (MOVPE) and Gas Source MBE (GSMBE) have long been the predominant growth techniques for the production of high quality InGaAsP materials. The use of SSMBE overcomes the major issue associated with the unintentional diffusion of zinc in MOVPE and gives the benefit of the superior control provided by MBE growth techniques without the costs and the risks of handling toxic gases of GSMBE. The UTC epitaxial structure contains a 300 nm n-InP collection layer and a 300 nm n++-InGaAsP waveguide layer. UTC-PDs integrated with Coplanar Waveguides (CPW) exhibit 3 dB bandwidth greater than 65 GHz and output RF power of 1.1 dBm at 100 GHz. We also demonstrate accurate prediction of the absolute level of power radiated by our antenna integrated UTCs, between 200 GHz and 260 GHz, using 3d full-wave modelling and taking the UTC-to-antenna impedance match into account. Further, we present the first optical 3d full-wave modelling of waveguide UTCs, which provides a detailed insight into the coupling between a lensed optical fibre and the UTC chip.

Type: Article
Title: High performance waveguide uni-travelling carrier photodiode grown by solid source molecular beam epitaxy
Open access status: An open access version is available from UCL Discovery
DOI: 10.1364/oe.27.037065
Publisher version: https://doi.org/10.1364/oe.27.037065
Language: English
Additional information: This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/
UCL classification: UCL
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Electronic and Electrical Eng
URI: https://discovery.ucl.ac.uk/id/eprint/10088144
Downloads since deposit
64Downloads
Download activity - last month
Download activity - last 12 months
Downloads by country - last 12 months

Archive Staff Only

View Item View Item