A coupled cavity Fabry-Perot silicon electro-optic modulator for X 3 and 1. 5 jun is proposed and analyzed. The modulator consists of alternated slabs with high (silicon) and low (Si02 or air) refractive iixlex arI can be realized by standard microelectronic technique. Varying the optical properties of the silicon slabs by carrier injection it is possible to modulate tl light intensity transmitted across the device. The small size and the low current values requiitd to drive it ai compatible with a small scale integration.
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