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8.2-3 Parameters of a Dielectric Waveguide. Light of free-space wavelength d, = 0.87 um is guided by a thin planar film of widthd=2 um and refractive index n1 = 1.6 surrounded by a medium of refractive index n2 = 1.4. (a) Determine the critical angle 0, and its complement e, the numerical aperture NA, and the maximum acceptance angle for light originating in air (n = 1). (b) Determine the number of TE modes. (c) Determine the bounce angle 0 and the group velocity v of the m 0 TE mode. Kfect of Clodding Pepoet Proh 82.3 if the thin Glm is sucnen ad in air Compare

8.2-3 Parameters of a Dielectric Waveguide. Light of free-space wavelength d, = 0.87 um is guided by a thin planar film of widthd=2 um and refractive index n1 = 1.6 surrounded by a medium of refractive index n2 = 1.4. (a) Determine the critical angle 0, and its complement e, the numerical aperture NA, and the maximum acceptance angle for light originating in air (n = 1). (b) Determine the number of TE modes. (c) Determine the bounce angle 0 and the group velocity v of the m 0 TE mode. Kfect of Clodding Pepoet Proh 82.3 if the thin Glm is sucnen ad in air Compare

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8.2-3 Parameters of a Dielectric Waveguide. Light of free-space wavelength A, = 0.87 um is guided by a thin planar film of widthd=2 um and refractive index n1 = 1.6 surrounded by a medium of refractive index n2 = 1.4. (a) Determine the critical angle 0, and its complement e, the numerical aperture NA, and the maximum acceptance angle for light originating in air (n = 1). (b) Determine the number of TE modes. (c) Determine the bounce angle 0 and the group velocity v of the m = 0 TE mode. Effect of Cladding, Repeat Prob. 8.2-3 if the thin film is suspended in air (no = 1), Compare 8.2-4
Transcribed Image Text:8.2-3 Parameters of a Dielectric Waveguide. Light of free-space wavelength A, = 0.87 um is guided by a thin planar film of widthd=2 um and refractive index n1 = 1.6 surrounded by a medium of refractive index n2 = 1.4. (a) Determine the critical angle 0, and its complement e, the numerical aperture NA, and the maximum acceptance angle for light originating in air (n = 1). (b) Determine the number of TE modes. (c) Determine the bounce angle 0 and the group velocity v of the m = 0 TE mode. Effect of Cladding, Repeat Prob. 8.2-3 if the thin film is suspended in air (no = 1), Compare 8.2-4
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