Author:
Salceda-Delgado G,Martinez-Rios A,Porras-Culebro T E,Torres-Gomez I,Anzueto-Sanchez G
Abstract
A refractive index optical fiber sensor is presented. It consists of an air gap inside the fiber, structuring a Mach-Zehnder interferometer with high-order propagating modes sensitive to the surrounding. Sensitivities around 226.8 nm/RIU were obtained.