Problem 2. Consider a planar slab waveguide of infinite extent in the y and z directions. The gui...
Problem 2. Consider a planar slab waveguide of infinite extent in the y and z directions. The guiding film index is 1.5, the substrate index is 1.48, and the cover index is 1.0. The thickness of the guiding layer is 2um. The waveguide is excited with a 1.3um laser source. For TE modes: a). what is the value range of propagation coefficient B for this waveguide. (15 points) b). what is the numerical aperture for this waveguide. (10 points) c). determine the allowed values of propagation coefficient B and transverse direction wave vector kx for this waveguide. You need write a computer program to find these values. (30 points) d). if the excitation light source is 0.63um, how many modes will this waveguide carries? (15 points)
Problem 2. Consider a planar slab waveguide of infinite extent in the y and z directions. The guiding film index is 1.5, the substrate index is 1.48, and the cover index is 1.0. The thickness of the guiding layer is 2um. The waveguide is excited with a 1.3um laser source. For TE modes: a). what is the value range of propagation coefficient B for this waveguide. (15 points) b). what is the numerical aperture for this waveguide. (10 points) c). determine the allowed values of propagation coefficient B and transverse direction wave vector kx for this waveguide. You need write a computer program to find these values. (30 points) d). if the excitation light source is 0.63um, how many modes will this waveguide carries? (15 points)