Femtosecond laser inscribed bridging cladding waveguides combining single- and multi-core optical fibres for shape sensing
Date Issued
November 6, 2019
Abstract
We show that femtosecond laser inscribed “bridging waveguides” can couple the displaced cores of different types of optical fibres. We explore coupling between single- and four-core fibre, incorporating multiple Bragg gratings. The sensor is calibrated for bend and shape sensing.