A Review of Recent Results on Simultaneous Interrogation of Multiple Fiber Bragg Grating-Based Sensors Using Microwave Photonics

Abstract

We review recent results on exploiting microwave photonics to enable simultaneous interrogation of multiple fiber Bragg grating (FBG)-based sensors. In particular, we describe the use of (1) microwave photonic filtering and (2) chirped microwave pulse generation and compression as a means to map the wavelength (spectral) changes in the response of FBG-based sensors (specifically, an in-fiber Fabry-Pérot cavity sensor based on FBGs, FBG sensors directly, and a linearly chirped FBG sensor) to applied temperature (or strain) to the power of a radio-frequency signal (i.e., a wavelength-to-power mapping) or to the correlation peak of the compressed microwave signal. The approaches support high-resolution and high-speed interrogation and can be suitable for large scale sensing networks.

Fiber-Optic Chemical Sensors and Biosensors (2015–2019)

“…The review covers mainly sensing of physical parameters but also some sensors for gases. The same is true for a review on multiple FBGs using microwave photonics . Interferometers, fiber gratings, photonic crystal fibers, and surface plasmon resonance sensors for ocean observation were critically reviewed .…”

“…The same is true for a review on multiple FBGs using microwave photonics. 17 Interferometers, fiber gratings, photonic crystal fibers, and surface plasmon resonance sensors for ocean observation were critically reviewed. 18 Finally, evanescent wave absorption-based sensing schemes by using straight, or tapered, or U-shaped, or D-shaped fibers were reviewed.…”

Special Issue “Microwave Photonics 2018”

“…The present Special Issue gathers eight papers reporting state-of-the-art research progress and breakthroughs accomplished by internationally recognized research teams in the field of microwave photonics through the year 2018. The reported research results, distributed in two research papers [11,12] and six review papers [13][14][15][16][17][18], cover several of the specific strategic areas outlined in Section 1.…”

“…A review of recent results on simultaneous interrogation of multiple fiber Bragg grating sensors by exploiting microwave photonics is performed by Chen et al [15]. This work describes the use of both microwave photonic filtering and chirped microwave pulse generation and compression for wavelength-to-power mapping, demonstrating high-resolution and high-speed interrogation.…”

Measurement of Parachute Canopy Textile Deformation Using Mechanically Invisible Stretchable Lightguides

“…They are i) immune to the electromagnetic interference that affects electronics, ii) lightweight and occupy small form factors, iii) chemically stable, iv) can encode information in both intensity and wavelength, [27] and v) can sample data at high frequencies (higher than 10 GHz). [28] Their structural properties make them amenable to textile integration techniques: weaving, [29][30][31] knitting, [32] gluing, [33,34] stitching itself on the textile like a thread, [35,36] and embroidering. [37,38] This manufacturing flexibility has enabled their use in dynamic applications such as wearable electronics [33,[39][40][41] and parachute canopies.…”