Publication: Self-referencing optical intensity sensor based on radio-frequency spectrum interrogation
Date
2019
Authors
Roslina M.
Mokhtar M.R.
Journal Title
Journal ISSN
Volume Title
Publisher
Academic Press Inc.
Abstract
This paper proposes an optical sensor system that is based on non-interfering optical power superposition in Mach-Zehnder configuration. The sensor generates radio-frequency (RF) spectrum that responds to the imbalance of optical power between the branches of the Mach-Zehnder structure induced by the sensing measurand. The sensing signal provides self-referencing intensity-based interrogation without requiring typical expensive optical frequency apparatus and complicated signal processing technique. Its reliability is demonstrated in a load sensing application. � 2019 Elsevier Inc.
Description
Fiber optic sensors; Optical sensors; Radio waves; Sensor networks; Load sensing applications; Mach-Zehnder structures; Optical frequency; Optical intensities; Optical multiplexing; Radio frequency spectrum; Self-referencing; Signal processing technique; Signal processing