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Q.1] A multimode, optimum, near-parabolic profile graded index fiber has a material dispersion parameter of 30 ps nm-1 km-1 when used with a good LED source of rms spectral width 25 nm. The fiber has a numerical aperture of 0.4 and a core axis refractive index of 1.48. Estimate the total rms pulse broadening per kilometer within the fiber assuming waveguide dispersion to be negligible. Hence, estimate the bandwidth-length product for the fiber. Ans. 774 ps km', 258 MHz km

Q.1] A multimode, optimum, near-parabolic profile graded index fiber has a material dispersion parameter of 30 ps nm-1 km-1 when used with a good LED source of rms spectral width 25 nm. The fiber has a numerical aperture of 0.4 and a core axis refractive index of 1.48. Estimate the total rms pulse broadening per kilometer within the fiber assuming waveguide dispersion to be negligible. Hence, estimate the bandwidth-length product for the fiber. Ans. 774 ps km', 258 MHz km

Introductory Circuit Analysis (13th Edition)
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
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Q.1] A multimode, optimum, near-parabolic profile graded index fiber has a material dispersion parameter of 30 ps nm-1 km-1 when used with a good LED source of rms spectral width 25 nm. The fiber has a numerical aperture of 0.4 and a core axis refractive index of 1.48. Estimate the total rms pulse broadening per kilometer within the fiber assuming waveguide dispersion to be negligible. Hence, estimate the bandwidth-length product for the fiber. Ans. 774 ps km', 258 MHz km
Transcribed Image Text:Q.1] A multimode, optimum, near-parabolic profile graded index fiber has a material dispersion parameter of 30 ps nm-1 km-1 when used with a good LED source of rms spectral width 25 nm. The fiber has a numerical aperture of 0.4 and a core axis refractive index of 1.48. Estimate the total rms pulse broadening per kilometer within the fiber assuming waveguide dispersion to be negligible. Hence, estimate the bandwidth-length product for the fiber. Ans. 774 ps km', 258 MHz km
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