Equation (8.45) was derived for the case where the light incident upon the sending end of the optical fiber extends over the entire acceptance cone shown in Fig. 8-12(b). Suppose the incident light is constrained to a narrower range extending between normal incidence and 0; where 0 < a.
(a) Obtain an expression for the maximum data rate fp in terms of 0.
(b) Evaluate fp for the fiber of Example 8-5 when 0 = 5o.