Sánchez Montero, David RicardoVázquez García, María Carmen2016-01-142016-01-142013-05-01Montero, D.S., Vázquez, C. (2013). Remote Interrogation of WDM Fiber-Optic Intensity Sensors Deploying Delay Lines in the Virtual Domain. Sensors, 13 (5), pp. 5870-5880.1424-8220https://hdl.handle.net/10016/22146In this work a radio-frequency self-referencing WDM intensity-based fiber-optic sensor operating in reflective configuration and using virtual instrumentation is presented. The use of virtual delay lines at the reception stage, along with novel flexible self-referencing techniques, and using a single frequency, avoids all-optical or electrical-based delay lines approaches. This solution preserves the self-referencing and performance characteristics of the proposed WDM-based optical sensing topology, and leads to a more compact solution with higher flexibility for the multiple interrogation of remote sensing points in a sensor network. Results are presented for a displacement sensor demonstrating the concept feasibility.11application/pdfeng© 2013 by the authors; licensee MDPI, Basel, Switzerland.Atribución 3.0 EspañaOptical sensingPassive remote sensingSelf-referencingVirtual delay line.research articleElectrónicaIngeniería Industrialhttps://www.doi.org/10.3390/s130505870open access587055880Sensors13AR/0000013465