(a) A particular silica glass waveguide is reported to have a loss coefficient of 0.050 dB/cm (power out/power in, defined in Problem 19-22) for 514-nm-wavelength light. The thickness of the waveguide is 0.60 μm and the length is 3.0 cm. The angle of incidence ( i in the figure) is 70°. What fraction of the incident radiant intensity is transmitted through the waveguide?

(b) If the index of refraction of the waveguide material is 1.5, what is the wavelength of light inside the waveguide? What is the frequency?

Transcribed Image Text:

Coupling prism Light in Cladding Waveguide Cladding