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

Author(s)

Mareli Rodigheri ^[1] ; Flávio José Galdieri ^[2] ; Tiago Sutili ; Evandro Conforti ^[4]

Affiliation

^[1] University of Campinas. Unicamp - Brasil

^[2] University of Campinas. Unicamp - Brasil

^[4] University of Campinas. Unicamp - Brasil

• Document type: Journal article
• Source: J. Microw. Optoelectron. Electromagn. Appl.; v. 19, n. 4, p. 485-494, 2020-11-11.

Abstract

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. (AU)

• FAPESP's process: 18/18337-5 - Narrow linewidth lasers characterization using ultra high speed ADCs and optical coherent reception with DSP
• Grantee: Mareli Rodigheri
• Support Opportunities: Scholarships in Brazil - Master
• FAPESP's process: 15/50063-4 - Optical Interconection and Transmition Coherent Systems Technologies
• Grantee: Evandro Conforti
• Support Opportunities: Research Grants - Research Partnership for Technological Innovation - PITE
• FAPESP's process: 17/20121-8 - Microwave Photonics with Analog/Digital Ultrafast Processing
• Grantee: Tiago Sutili
• Support Opportunities: Scholarships in Brazil - Post-Doctoral
• FAPESP's process: 15/24517-8 - Photonics for next generation internet
• Grantee: Hugo Enrique Hernández Figueroa
• Support Opportunities: Research Projects - Thematic Grants