Simultaneous measurement of refractive index and temperature using a cascaded core-offset in-line fiber Mach–Zehnder interferometer
In-line fiber Mach–Zehnder interferometers (MZIs) have been widely investigated for refractive index (RI) sensing; however, variations in temperature affect the accuracy of RI measurement due to the thermo-optic effect. In this study, a cascaded core-offset in-line fiber MZI was simulated and experimentally demonstrate...