Question

A mechanical splice in a multimode step index fiber has a lateral offset of 16% of the fiber core radius. The fiber core has a refractive index of 1.49, and an index matching fluid with a refractive index of 1.45 is inserted in the splice between the butt-jointed fiber ends. Assuming no longitudinal or angular misalignment, estimate the insertion loss of the splice.

Answer 1

Solution:-

given:-

The fiber core has a refractive index of 1.49

ndex matching fluid with a refractive index of 1.45 

formula

$\boxed{insertion \space loss = - (10log_{10}^{\mu} )\space db }$

$\boxed{insertion \space loss = - (10log_{10}^{1.45} )\space db }$

putting the values in formula

we get

$\boxed{ Insertion\space loss = -1.61368002235 \space db}$