The index of refraction of the core of a typical fiber optic is n_core = 1.51; t

Question

The index of refraction of the core of a typical fiber optic is n_core = 1.51; the cladding has n_clad = 1.38. Calculate the critical angles for the total internal reflection i_crit and alpha_crit.

i_crit = ____________ degrees

alpha_crit = _______ degrees The index of refraction of the core of a typical fiber optic is n_core = 1.51; the cladding has n_clad = 1.38. Calculate the critical angles for the total internal reflection i_crit and alpha_crit.

i_crit = ____________ degrees

alpha_crit = _______ degrees

Explanation / Answer

Given that n _core   = 1.51          n_cladd   = 1.38   Total internal reflection i_crit = sin^-1 ( 1.38 / 1.51 )                                                 = 66.05 degrees      

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