Optical Fiber Spool Acoustic Wave Resonances Employing a Mach-Zehnder Interferometer in Vacuum Chamber

Authors

DOI:

https://doi.org/10.1590/2179-10742020v19i4926

Keywords:

Acoustical resonances, Donnel-Mushtari Theory, Mach Zehnder interferometer, optical fiber spool.

Abstract

The longitudinal, flexural, and torsional modes of acoustical resonances are presented for a long and small thickness cylindrical fiber spool. The fiber spool is built using a monomode optical fiber tightly wound in a helix form around a cylindrical Styropor. The acoustical resonance values are obtained using a Mach Zehnder interferometer with the fiber spool in the long (2 km) arm and a small linewidth laser. To reduce spurious signals, the interferometer was placed inside a vacuum chamber. The measured and theoretical results reasonably agree up to the first fifteen resonant longitudinal modes and for the first five flexural and torsional resonant modes, with a span from 10 Hz up to 200 Hz.

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Published

2020-10-15

How to Cite

Rodigheri, M., Galdieri, F. J., Sutili, T., & Conforti, E. (2020). Optical Fiber Spool Acoustic Wave Resonances Employing a Mach-Zehnder Interferometer in Vacuum Chamber. Journal of Microwaves, Optoelectronics and Electromagnetic Applications (JMOe), 19(4), AoP 485-494. https://doi.org/10.1590/2179-10742020v19i4926

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Section

Regular Papers