A silicon integrated photonic sensor using Bragg gratings and signal post-processing

R. Peyton; J. H. Martinez; F. Videla; G. A. Torchia

doi:10.1117/12.2593723

1 August 2021 A silicon integrated photonic sensor using Bragg gratings and signal post-processing

R. Peyton, J. H. Martinez, F. Videla, G. A. Torchia

Proceedings Volume 11802, Nanoengineering: Fabrication, Properties, Optics, Thin Films, and Devices XVIII; 118020N (2021) https://doi.org/10.1117/12.2593723
Event: SPIE Nanoscience + Engineering, 2021, San Diego, California, United States

Conference Poster

Abstract

In this paper, we propose a new sensing topology based on a differential power analysis, using an array of photonic sensors. The system structure is composed of a 1x4 balanced power divider, three Bragg gratings, and a reference branch. In particular, we present an analysis of the individual sensing parameters of the Bragg gratings, as well as the procedure to be followed in order to optimise the design parameters of the sensing system. The designs were verified with simulations by different numerical methods. Finally, a substantial reduction of the detection limit is demonstrated by easy-to-implement signal post-processing.

Conference Presentation

Citation Download Citation

R. Peyton, J. H. Martinez, F. Videla, and G. A. Torchia "A silicon integrated photonic sensor using Bragg gratings and signal post-processing", Proc. SPIE 11802, Nanoengineering: Fabrication, Properties, Optics, Thin Films, and Devices XVIII, 118020N (1 August 2021); https://doi.org/10.1117/12.2593723

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