9 An optical of refractive index n surrounded by a

Last updated: 5/29/2023

9 An optical of refractive index n surrounded by a transparent cladding of slightly lower index n If fibre is kept in medium of refractive index no then maximum acceptance angle 0 on the axis of the core is given by e no De 1 sinee 3 sine n n no n n 2 n n cladding n core n cladding 2 sinee 4 sinee axis M 1 no 7 7