REFRACTIVE INDEX CONTRAST

In an optical fiber , a measure of the relative difference in refractive index of the core and cladding . ( 188 ) Note: Refractive index contrast, , is given by = ( n 1 2 - n 2 2 )/(2 n 1 2 ), where n 1 is the maximum refractive index in the core and n 2 is the refractive index of the homogeneous cladding .