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A step-index Fiber has a core index of refraction-1.425. The cut-off angle for light entering the Fiber from air is found to be 8.50°. (1) What is the numerical aperture of the Fiber? (2) If the Fiber were submersed in water with same NA, what would be the cut-off angle when 1.33. (3) Find the power of the Fiber after (2) km, when the power losses is (1.5) dB/km.

A step-index Fiber has a core index of refraction-1.425. The cut-off angle for light entering the Fiber from air is found to be 8.50°. (1) What is the numerical aperture of the Fiber? (2) If the Fiber were submersed in water with same NA, what would be the cut-off angle when 1.33. (3) Find the power of the Fiber after (2) km, when the power losses is (1.5) dB/km.

Database System Concepts
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
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A step-index Fiber has a core index of refraction-1.425. The cut-off angle for light entering the Fiber from air is found to be 8.50°. (1) What is the numerical aperture of the Fiber? (2) If the Fiber were submersed in water with same NA, what would be the cut-off angle when 1.33. (3) Find the power of the Fiber after (2) km, when the power losses is (1.5) dB/km.
Transcribed Image Text:A step-index Fiber has a core index of refraction-1.425. The cut-off angle for light entering the Fiber from air is found to be 8.50°. (1) What is the numerical aperture of the Fiber? (2) If the Fiber were submersed in water with same NA, what would be the cut-off angle when 1.33. (3) Find the power of the Fiber after (2) km, when the power losses is (1.5) dB/km.
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