Noise Cancellation Effects in Integrated Photonics with Wilkinson Power Dividers.

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 benefi

SUBMITTER: Ortega-Gomez A 

PROVIDER: S-EPMC10197118 | biostudies-literature | 2023 May

REPOSITORIES: biostudies-literature