On-chip correlation-based Brillouin sensing: design, experiment, and simulation

Zarifi, Atiyeh; Stiller, Birgit; Merklein, Moritz; Liu, Yang; Morrison, Blair; Casas-Bedoya, Alvaro; Ren, Guanghui; Nguyen, Thach G.; Vu, Khu; Choi, Duk-Yong; Mitchell, Arnan; Madden, Steven J.; Eggleton, Benjamin J.

doi:10.1364/JOSAB.36.000146

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On-chip correlation-based Brillouin sensing: design, experiment, and simulation

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Zarifi, A., Stiller, B., Merklein, M., Liu, Y., Morrison, B., Casas-Bedoya, A., et al. (2019). On-chip correlation-based Brillouin sensing: design, experiment, and simulation. JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS, 36(1), 146-152. doi:10.1364/JOSAB.36.000146.

Cite as: https://hdl.handle.net/21.11116/0000-0004-B5A5-5

Abstract

Wavelength-scale stimulated Brillouin scattering (SBS) waveguides are
enabling novel on-chip functionalities. The microscale and nanoscale SBS
structures and the complexity of the SBS waveguides require a
characterization technique to monitor the local geometry-dependent SBS
responses along the waveguide. In this work, we demonstrate an
experimental spatial resolution of 500 mu m, which can detect feature
sizes down to 200 mu m on a silicon-chalcogenide photonic waveguide
using the Brillouin optical correlation domain analysis technique. We
provide extensive simulation and analysis of how multiple acoustic and
optical modes associated with geometrical variations influence the
Brillouin spectrum. (C) 2018 Optical Society of America