A Study on MoS? Nanolayer Coated Etched Fiber Bragg Grating Strain Sensor

In this paper, we report on the comprehensive study Molybdenum disulfide (MoS 2 ) nanolayer coated etched Fiber Bragg Grating (eFBG) strain sensor. MoS is using Physical Vapor Deposition (PVD) of (Mo) eFBGs followed by sulfurization same in an inert atmosphere at 450° C. Such coating technique provides a direct control over thickness , thereby enabling based effect intrinsic sensitivity as well power back reflected wavelength eFBG 0.78eV spectral region. High uniformity ensures consistent, repeatable and highly linear FBG sensors with correlation coefficient 0.988 range 0 to 2500 ??. A maximum ~6.65 pm/?? resolution ~150 n? have been achieved optimized sensors. This kind sensitive when incorporated proper packaging schemes can be particularly useful for applications demanding high such detection seismic vibrations, underwater acoustic signals, low amplitude accelerations, etc.