Guest Editorial Special Issue on Advances in Fiber Optic Sensing Technologies

Fiber optic sensors have contributed a huge market for sensing some quantity, typically temperature or mechanical strain, and even displacements, vibrations, pressure, acceleration, rotations, concentrations of chemical species. The application in defense engineering remains the largest fiber (FOSs). success bulk sensor has greatly motivated new types sensors, especially nanophotonics, biodiagnostics, biophotonics.