Multi-core FBG sensors are well suited for applications requiring simultaneous measurement of strain and temperature in advanced composite materials, including carbon, metal and glass-based composites. They are available with fibers from our partner Photonics Bretagne with 2, 4 or. IDIL designs and manufactures a new range of FBG sensors based on multi core fibers. These innovative sensors provide reliable temperature and strain measurements with redundancy. They have been successfully tested in our R&D projects. We used an optical fiber fusion splicer to directly splice a segment of FCF between two segments of NCF, with both the FCF and. Our vision is to disrupt the industrial sensing market by offering an advanced, cost effective and modular fiber optic sensing platform capable of delivering rich data streams to an ever-increasing data hungry world that will increase the efficiency, safety, and sustainability of the operations. In this work, two new interferometric sensors based on multicore optical fibers for the measurement of strain with the ultimate goal of traffic monitoring are presented. The operating principle of each sensor relied on the monitoring of the phase shift difference accumulated between the supermodes. We present a high-sensitivity curvature and strain Mach–Zehnder interferometer (MZI) fiber sensor based on a configuration of no-core fiber (NCF) and four-core fiber (FCF).
