In graded index multimode optical fiber the refractive index of the core is
A. uniform across its radial distance except for the cladding
B. maximum at the fiber axis and decreased stepwise towards the cladding
C. maximum at the fiber axis and decreases gradually towards the cladding
D. maximum at the fiber axis and increases stepwise towards the cladding
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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