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2.27 Calculate the number of modes at 820 nm and 1.3 um in a graded-index fiber having a parabolic-index profile (a=2), a 25-µm core radius, n, = 1.48, and n, = 1.46. How does this compare to a sten-index fiber?

2.27 Calculate the number of modes at 820 nm and 1.3 um in a graded-index fiber having a parabolic-index profile (a=2), a 25-µm core radius, n, = 1.48, and n, = 1.46. How does this compare to a sten-index fiber?

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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**Exercise 2.27:** Calculate the number of modes at 820 nm and 1.3 µm in a graded-index fiber having a parabolic-index profile \((\alpha = 2)\), a 25-µm core radius, \(n_1 = 1.48\), and \(n_2 = 1.46\). How does this compare to a step-index fiber?
Transcribed Image Text:**Exercise 2.27:** Calculate the number of modes at 820 nm and 1.3 µm in a graded-index fiber having a parabolic-index profile \((\alpha = 2)\), a 25-µm core radius, \(n_1 = 1.48\), and \(n_2 = 1.46\). How does this compare to a step-index fiber?
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