Semiconductor optical component and amplifier and wavelength converter consisting thereof
AssigneeAlcatel
InventorsJean-Yves Emery, Fabienne Gaborit, Christopher Janz, François Dorgeuille, Béatrice Dagens
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Abstract
An active structure in the semiconductor die of an amplifier or converter includes a plurality of stacked active layers with different compositions. The different compositions lead to a spectral offset between the respective gain bands of the layers which widens the gain band of the amplifier or the optical bandwidth of the converter. Applications include fiber optic telecommunication networks.
Claims21
A semiconductor optical component including a semiconductor die having a waveguide part comprising a plurality of layers extending in horizontal directions of said die and forming a succession of layers with crystalline continuity in a vertical direction of said die, at least some of said layers including a plurality of active materials having respective compositions and respective energy gaps enabling them to amplify optical waves propagating in said guide, said materials having a variation in composition in said vertical direction leading to a variation in energy gap, and at least some of said active materials being in the form of bulk materials.
Dependencies are inferred from the claim text.