Question: A symmetric slab waveguide is known to support only a single pair of TE and TM modes at wavelength = 1.55m. If the slab

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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