Homework2 - GEORGIA TECH LORRAINE GEORGIA INSTITUTE OF...

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Unformatted text preview: GEORGIA TECH LORRAINE GEORGIA INSTITUTE OF TECHNOLOGY School of Electrical and Computer Engineering ECE 6543 Fiber Optic Network Spring Semester 2009 Homework #2 Date due: February 2nd Problem 1 Consider a step-index fiber with core radius of 4 μm and a cladding refractive index of 1.45. 1. For what range of values of the core refractive index will the fiber be single moded for all wavelengths in the 1.2 - 1.6 μm range? 2. What is the value of the core refractive index for which the V parameter is 2.0 at λ = 1 . 55 μm ? What is the propagation constant of the single mode supported by the fiber for this value of the core refractive index? Problem 2 Assume that, in the manufacture of single-mode fiber, the tolerance in the core radius a is ± 5% and the tolerance in the normalized refractive index difference Δ is ± 10%, from their respective nominal values. If the nominal value of Δ is specified to be 0.005, what is the largest nominal value that you can specify for a while ensuring that the resulting fiber will be...
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This note was uploaded on 09/01/2010 for the course ECE 6543 taught by Professor Boussert during the Spring '09 term at Georgia Institute of Technology.

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Homework2 - GEORGIA TECH LORRAINE GEORGIA INSTITUTE OF...

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