An optical fibre has refractive index core
A. high and low refractive index cladding
B. low and high refractive index cladding
C. uniform surrounded by variable index cladding
D. variable with refractive index increases from low at the centre to high at the junction with cladding
Answer: Option A
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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