If n1 and n2 are the refractive indices of the core and cladding respectively, the maximum acceptance angle at the air-core interface should be
A. $${\tan ^{ - 1}}\frac{{{n_2}}}{{{n_1}}}$$
B. $${\sin ^{ - 1}}\sqrt {n_2^2 - n_1^2} $$
C. $${\sin ^{ - 1}}\sqrt {n_1^2 - n_2^2} $$
D. $${\tan ^{ - 1}}\frac{{{n_1}}}{{{n_2}}}$$
Answer: Option C
This Question Belongs to Electronics And Communications Engineering >> Optical Communication
A. Dispersion-flattened single mode fiber
B. Dispersion-enhanced single mode fiber
C. Dispersion-compressed single mode fiber
D. Dispersion-standardized single mode fiber
Photonic crystal fibers also called as . . . . . . . .
A. Conventional fibers
B. Dotted fibers
C. Stripped fibers
D. Holey fibers
An optical fiber behaves as a birefringence medium due to differences in . . . . . . . .
A. Effective R-I and core geometry
B. Core-cladding symmetry
C. Transmission/propagation time of waves
D. Refractive indices of glass and silica
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