4. (a) A fiber has modal dispersion of 10ns/km. If an instantaneous light pulse travelled 20 km in this fiber, what would the pulse length be at the 20km point form the beginning of the fiber. (b) Which of the following dispersion problems will be of concern when transmiting a monochromatic light through a single-mode step-index fiber? (a) Chromatic dispersion, (b) Modal dispersion, (c) Polarization mode dispersion. Please list all that apply.

4. (a) A fiber has modal dispersion of 10ns/km. If an instantaneous light pulse travelled 20 km in this fiber, what would the pulse length be at the 20km point form the beginning of the fiber. (b) Which of the following dispersion problems will be of concern when transmiting a monochromatic light through a single-mode step-index fiber? (a) Chromatic dispersion, (b) Modal dispersion, (c) Polarization mode dispersion. Please list all that apply.

University Physics Volume 3

17th Edition

ISBN:9781938168185

Author:William Moebs, Jeff Sanny

Publisher:William Moebs, Jeff Sanny

Chapter4: Diffraction

Section: Chapter Questions

Problem 46P: An electric current through hydrogen gas produces several distinct wavelengths of visible light....

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