4500T306 - is propagating in this waveguide as a TE mode, a...

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General Optical Engineering Questions 1. A thin slab in air of thickness d and refractive index n with Fat and parallel surfaces will strongly transmit normally incident light of freespace wavelength λ for m being an integer if (Circle one best answer.) c) 2 nd = 2. A bulk dielectric material of refractive index n ( λ ) exhibits normal material dispersion (not anomalous dispersion). There is no waveguide present. ±or an electromagnetic wave in this bulk material, (Circle one best answer.) a) group velocity < phase velocity 3. An asymmetric slab waveguide is formed in dielectric materials. At a freespace wave- length λ , this waveguide is a “single-mode” waveguide. This waveguide exhibits waveg- uide dispersion. No material dispersion is present. ±or a guided electromagnetic wave in this waveguide, (Circle one best answer.) a) group velocity < phase velocity 4. An asymmetric slab waveguide has thickness h , cover index n c , ²lm index n f , and substrate index n s . Light of freespace wavelength
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Unformatted text preview: is propagating in this waveguide as a TE mode, a TE 1 mode, a TE 2 mode, a TM mode, a TM 1 mode, and a TM 2 mode. Of these modes, the most tightly conned mode is (Circle one best answer.) a) TE mode 5. An asymmetric slab waveguide has thickness h , cover index n c , lm index n f , and substrate index n s . Light of freespace wavelength is propagating in this waveguide as a TE mode, a TE 1 mode, a TE 2 mode, a TM mode, a TM 1 mode, and a TM 2 mode. Of these modes, the most weakly conned mode is (Circle one best answer.) f) TM 2 6. A symmetric slab waveguide has a lm of refractive index n f and cover and substrate of refractive index of n c = n s . The thickness of the lm is h . or a TE mode excited in this waveguide at a freespace wavelength of , the thickness at cuto for the TE mode is (Circle one best answer.) a) 0...
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4500T306 - is propagating in this waveguide as a TE mode, a...

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