A novel distributed fiber-optic vibration sensor is proposed and experimentally demonstrated. The sensor relies on a dual Mach-Zehnder ring interferometric architecture associated to a new coherent detection scheme, borrowed from high bit rate coherent optical communications, which performs a completely passive management of polarization and phase variables of the received optical signal. The proposed solution thus makes feasible the actual in-field applicability of the cost-effectiveness and high sensitivity featured by interferometric sensors. Sensor performance in terms of vibration localization accuracy has been experimentally verified.

Coherent fiber-optic sensor for vibration localization

MOROSI, JACOPO;MATTAREI, MARCO;FERRARIO, MADDALENA;BOFFI, PIERPAOLO;MARTINELLI, MARIO
2014

Abstract

A novel distributed fiber-optic vibration sensor is proposed and experimentally demonstrated. The sensor relies on a dual Mach-Zehnder ring interferometric architecture associated to a new coherent detection scheme, borrowed from high bit rate coherent optical communications, which performs a completely passive management of polarization and phase variables of the received optical signal. The proposed solution thus makes feasible the actual in-field applicability of the cost-effectiveness and high sensitivity featured by interferometric sensors. Sensor performance in terms of vibration localization accuracy has been experimentally verified.
2014 Fotonica AEIT Italian Conference on Photonics Technologies, Fotonica AEIT 2014
9788887237177
9788887237177
Coherent detection; Dual Mach-Zehnder interferometer; Fiber-optic sensor; Phase noise; Vibration localization; Instrumentation
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11311/961207
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