Answered: A graded index fiber has a core with a…

Computer Networking: A Top-Down Approach (7th Edition)

7th Edition

ISBN:9780133594140

Author:James Kurose, Keith Ross

Publisher:James Kurose, Keith Ross

Chapter1: Computer Networks And The Internet

Section: Chapter Questions

Problem R1RQ: What is the difference between a host and an end system? List several different types of end...

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$A graded index fiber has a core with a parabolic refractive index profile which Q.4 has a diameter of 50 um. The fiber has a numerical aperture of 0.2. Estimate the total number of guided modes propagating in the fiber when it is operating at a wave- length of 1 µm. The numerical input/output mean optical power ratio in one Km length of fiber is found to be 2.5. Calculate the received mean optical power when a mean power of 1 mW is launched into a 5 km length of fiber. Assume no splicing and no connectors being used. Q.5 Q.6 What is the loss in dB per Km of this fiber? An optical signal has lost 85% of its power after traversing 500 meter of fiber?$

Transcribed Image Text:A graded index fiber has a core with a parabolic refractive index profile which Q.4 has a diameter of 50 um. The fiber has a numerical aperture of 0.2. Estimate the total number of guided modes propagating in the fiber when it is operating at a wave- length of 1 µm. The numerical input/output mean optical power ratio in one Km length of fiber is found to be 2.5. Calculate the received mean optical power when a mean power of 1 mW is launched into a 5 km length of fiber. Assume no splicing and no connectors being used. Q.5 Q.6 What is the loss in dB per Km of this fiber? An optical signal has lost 85% of its power after traversing 500 meter of fiber?

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