Most of the power in an optical fiber is transmitted in fiber cladding.

Optoelectronics and Optical Communication 

Most of the power in an optical fiber is transmitted in fiber cladding.

a) True 
b) False

Answer : - False

Most of the power in optical fiber is transmitted in fiber core. This is because in multimode fibers, majority of modes propagating in the core area are far from cutoff. Hence more power is transmitted.