High resolution brillouin sensing of micro-scale structures
Zarifi A, Stiller B, Merklein M, Eggleton BJ (2018)
Publication Type: Journal article, Review article
Publication year: 2018
Journal
Book Volume: 8
Article Number: 2572
Journal Issue: 12
DOI: 10.3390/app8122572
Abstract
Brillouin distributed measurement techniques have been extensively developed for structural health monitoring using fibre optic nerve systems. The recent advancement in the spatial resolution capabilities of correlation-based Brillouin distributed technique have reached the sub-mm regime, making this approach a suitable candidate for monitoring and characterizing integrated photonic devices. The small dimension associated with the short length of these devices-on the order of the cm- and mm-scale-requires high sensitivity detection techniques and sub-mm spatial resolution. In this paper, we provide an overview of the different Brillouin sensing techniques in various micro-scale structures such as photonic crystal fibres, microfibres, and on-chip waveguides. We show how Brillouin sensing is capable of detecting fine transverse geometrical features with the sensitivity of a few nm and also extremely small longitudinal features on the order of a few hundreds of μm. We focus on the technique of Brillouin optical correlation domain analysis (BOCDA), which enables such high spatial resolution for mapping the opto-acoustic responses of micro-scale waveguides.
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Australia (AU)How to cite
APA:
Zarifi, A., Stiller, B., Merklein, M., & Eggleton, B.J. (2018). High resolution brillouin sensing of micro-scale structures. Applied Sciences, 8(12). https://doi.org/10.3390/app8122572
MLA:
Zarifi, Atiyeh, et al. "High resolution brillouin sensing of micro-scale structures." Applied Sciences 8.12 (2018).
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