A symmetric slab waveguide is known to support only a single pair of TE and TM modes

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A symmetric slab waveguide is known to support only a single pair of TE and TM modes at wavelength λ = 1.55μm. If the slab thickness is 5 μm, what is the maximum value of n1 if n2 = 3.30?

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Engineering Electromagnetics

ISBN: 978-0073380667

8th edition

Authors: William H. Hayt, John A.Buck

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