Sharp bends or micro bends causes significant losses in fiber.
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ECE · all questionsOptical Communication
Optical Communication
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A multimode graded index fiber exhibits a total pulse broadening of 0.15μs over a distance of 16 km. Estimate the maximum possible bandwidth, assuming no intersymbol interference.
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The scattering resulting from fiber imperfections like core-cladding RI differences, diameter fluctuations, strains, and bubbles is
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Who proposed the use of clad waveguide structure?
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How the potential macro bending losses can be reduced in case of multimode fiber?
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Which equations are best suited for the study of electromagnetic wave propagation?
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Polarization modal noise can . . . . . . . . the performance of communication system.
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Who proposed the idea of transmission of light via dielectric waveguide structure?
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Which thing is more dominant in making a fiber function as a bidirectional optical amplifier?
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Light incident on fibers of angles . . . . . . . . the acceptance angle do not propagate into the fiber.
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An optical fiber has core-index of 1.480 and a cladding index of 1.478. What should be the core size for single mode operation at 1310nm?
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The differential attenuation of modes reduces intermodal pulse broadening on a multimode optical link.
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Self-phase modulation can be used for . . . . . . . .
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A 4 km optical link consists of multimode step index fiber with core refractive index of 1.3 and a relative refractive index difference of 1%. Find the delay difference between the slowest and fastest modes at the fiber output.
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High frequency optical phonon is generated in stimulated Raman scattering.
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The phonon is a quantum of an elastic wave in a crystal lattice.
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Non-zero-dispersion-shifted fiber was introduced in the year 2000.
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Stimulated Brillouin scattering is mainly a . . . . . . . .
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A device that reduces the intensity of light in optical fiber communications is . . . . . . . .
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Q100
Open questionA multimode step index fiber has source of RMS spectral width of 60nm and dispersion parameter for fiber is 150psnm-1km-1. Estimate rms pulse broadening due to material dispersion.
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