Publication:
Remote interrogation of WDM fiber-optic intensity sensors deploying delay lines in the virtual domain

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2013-05-01
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MDPI AG
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Abstract
In 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.
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Optical sensing, Passive remote sensing, Self-referencing, Virtual delay line.
Bibliographic citation
Montero, 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.