Vertical modulator with dual mode DBR

摘要

A vertical modulator with a dual mode distributed Bragg reflection (DBR), includes a pair of integrated elements using different wavelengths to provide functions of logical operation, data switching and wavelength conversion. The optical device includes a first optical structure operating at a first wavelength ( lambda 1) and a second optical structure operating at a second wavelength ( lambda 2). The first and second optical structures are formed over a semiconductor substrate. The first optical structure, which operates at the first wavelength ( lambda 1), transmits its data to the second optical structure so that data corresponding to the second wavelength ( lambda 2) can be output. Since the wavelength of input light is different from the wavelength of output light, the optical device serves as a modulator which performs a logic operation and switching function while carrying out wavelength conversion.