Indian Institute of Technology Delhi
CSIR-Central Glass & Ceramic Research Institute
Fibre Bragg gratings (FBGs) are characterized by a periodic refractive-index variation along the z-axis; that is, along the propagation axis in an optical fibre. FBGs have very interesting wavelength-dependent characteristics and thus they find important applications as sensors, dispersion compensators and in many other diverse areas. In this chapter, we will present a detailed analysis of the working of the FBG using what is usually referred to as ...