Optical fibre sensing is a technology that is ideal for measuring in challenging environments. However, having many sensors in the field with high sensitivity and high bandwidth remains a challenge. At hall B3, booth 412, Optics11 will  introduce two new interferometric fibre sensing systems that able to overcome this challenge.

Deltasens  is an interrogator that can measure multiple Fabry-Pérot sensors simultaneously. Optics11 manufactures miniature accelerometers with nano-g sensitivity, which can be interrogated in high numbers by the DeltaSens system. With a single lead-in fibre, distances of kilometres between sensors can be covered.

Zonasens is an interrogator that measures the strain in zones between fibre Bragg gratings, resulting in femtostrain sensitivity and megahertz sampling frequency. More than 30 zones can be deployed with a single lead-in fibre, and distances of kilometres can be covered. Due to the high sensitivity and high bandwidth, the acoustics domain comes well within reach.