Noise Cancellation Effects in Integrated Photonics with Wilkinson Power Dividers.

Angel Ortega-Gomez, Osmery Hernández, Douglas Oña, Carlos Biurrun-Quel, Carlos Del Río, Iñigo Liberal

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Article in ACS photonics, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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5 · Who and what money

Authors and funding

6 authors.

Angel Ortega-GomezDepartment of Electrical, Electronic and Communications Engineering, Institute of Smart Cities (ISC), Pamplona 31006, Spain.

Osmery HernándezDepartment of Electrical, Electronic and Communications Engineering, Institute of Smart Cities (ISC), Pamplona 31006, Spain.

Douglas OñaDepartment of Electrical, Electronic and Communications Engineering, Institute of Smart Cities (ISC), Pamplona 31006, Spain.ORCID https://orcid.org/0000-0002-3028-293X

Carlos Biurrun-QuelDepartment of Electrical, Electronic and Communications Engineering, Institute of Smart Cities (ISC), Pamplona 31006, Spain.ORCID https://orcid.org/0000-0001-6446-3248

Carlos Del RíoDepartment of Electrical, Electronic and Communications Engineering, Institute of Smart Cities (ISC), Pamplona 31006, Spain.

Iñigo LiberalDepartment of Electrical, Electronic and Communications Engineering, Institute of Smart Cities (ISC), Pamplona 31006, Spain.ORCID https://orcid.org/0000-0003-1798-8513

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Wilkinson power dividers (WPDs) are a popular element in RF and microwave technologies known for providing isolation capabilities. However, the benefits that WPDs could offer to integrated photonic systems are far less studied. Here, we investigate the thermal emission from and the noise performance of silicon-on-insulator (SOI) WPDs. We find that WPDs exhibit a noiseless port, with important implications for receiving systems and absorption-based quantum state transformations. At the same time, the thermal signals exiting noisy ports exhibit nontrivial correlations, opening the possibility for noise cancellation. We analyze passive and active networks containing WPDs showing how such nontrivial correlations can prevent the amplification of the thermal noise introduced by WPDs while benefiting from their isolation capabilities. Using this insight, we propose a modified ring-resonator amplifier that improves by

Identifiers

PMID37215317

DOI10.1021/acsphotonics.2c01675

PMCPMC10197118

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