3. Electro-optical phase modulation in a diffused waveguide
3.1 Optical guidance by metal diffusion in LiNbO3
An optical waveguide traps light in a small channel, around 10 µm2, in which the light injected propagates in a zigzag pattern produced by total internal reflections. These reflections are possible when the guiding medium has a higher refractive index than the surrounding media.
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Electro-optical phase modulation in a diffused waveguide
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