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2.20 Consider a fiber with a 25-µm core radius, a core index n = 1.48, and A = 0.01. (a) If 1= 1320 nm, what is the value of Vand how many modes propagate in the fiber? (b) What percent of the optical power flows in the cladding? (c) If the core-cladding difference is reduced to A = 0.003, how many modes does the fiber support and what fraction of the opti- cal power flows in the cladding?

2.20 Consider a fiber with a 25-µm core radius, a core index n = 1.48, and A = 0.01. (a) If 1= 1320 nm, what is the value of Vand how many modes propagate in the fiber? (b) What percent of the optical power flows in the cladding? (c) If the core-cladding difference is reduced to A = 0.003, how many modes does the fiber support and what fraction of the opti- cal power flows in the cladding?

Introductory Circuit Analysis (13th Edition)
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
Section: Chapter Questions
Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...
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**Problem 2.20** Consider a fiber with a 25-μm core radius, a core index \( n_1 = 1.48 \), and \( \Delta = 0.01 \). (a) If \( \lambda = 1320 \) nm, what is the value of \( V \) and how many modes propagate in the fiber? (b) What percent of the optical power flows in the cladding? (c) If the core-cladding difference is reduced to \( \Delta = 0.003 \), how many modes does the fiber support and what fraction of the optical power flows in the cladding?
Transcribed Image Text:**Problem 2.20** Consider a fiber with a 25-μm core radius, a core index \( n_1 = 1.48 \), and \( \Delta = 0.01 \). (a) If \( \lambda = 1320 \) nm, what is the value of \( V \) and how many modes propagate in the fiber? (b) What percent of the optical power flows in the cladding? (c) If the core-cladding difference is reduced to \( \Delta = 0.003 \), how many modes does the fiber support and what fraction of the optical power flows in the cladding?
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