Analytical Analysis and Experimental Validation of a Multi-parameter Mach-Zehnder Fiber Optic Interferometric Sensor

Abstract

Here we report a simple analytical technique to model a Mach-Zehnder fiber optic interferometric sensors that allow us to predict and calculate via computer simulations parameters that are not easily obtained experimentally. This model was calibrated and compared with experimental data using a 120 mm sensor for measurements of temperature, refractive index and water level. For instance, we were able to calculate the effects on the cladding effective index caused by the variation of those physical parameters. Moreover, this analysis could further our understanding of such sensors and allow us to make predictions about their use in different applications and even their behavior with different sensing lengths.

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

“…Low phase-noise lasers [1]- [4] have relevant applications in optical fiber communications [5], temperature and pressure sensing [6], medical ultrasound devices [7], [8], temperature monitoring [9,10], wide-band fiber optic systems [11], monitoring of power grids [12], fiber optic interferometric sensors [13], low-phase-noise photonic oscillator fiber sensors [1], and fiber acoustic sensors [14]- [17].…”