Unformatted text preview: er even or odd under reflection symmetry. i.e Ey(x)=+Ey(‐x) 2. Angle of propagation of modes Consider a solution to the above equation E(x) for a symmetric planar wave guide. a) Express the above plane wave solution inside the waveguide as a superposition of two plane waves. b) Find the direction of propagation (θ) of the planar waves for a mode with a specific β. c) What is the phase difference between the two plane waves of a specific mode (Say β1) at points along the axis of propagation? 3. Numerical Aperture and Angle of Acceptance of an Optical Fiber. An optical fiber is...
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- South African National Roads Agency, numerical aperture, Asymmetric planar waveguide, planar slab waveguide