Transverse 2D photonic crystal inside a fiber optic for picometer-scale measurements

摘要

In this paper we analyze a sensor based on a transverse triangular 2D photonic crystal (PC) embedded inside a fiber optic (FO). The sensor modulates the transmitted light in order to estimate small mechanical deformations. The proposed sensing system measures mechanical deformations using a particular PC geometry, comparable to light wavelengths. This allows for light-matter interactions, which reveal accurate information about dimensional changes.