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US 6,069,732 AGranted
Semiconductor interferometric optical wavelength conversion device
AssigneeLucent Technologies Inc.
InventorsThomas Lawson Koch, Xing Pan
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AssigneeLucent Technologies Inc.
InventorsThomas Lawson Koch, Xing Pan
Estimating the term…
An interferometer having semiconductor optical amplifiers in one or both arms of the interferometer converts information from a first wavelength to another predetermined wavelength. The original data signal (at the first wavelength) is coupled into the interferometer in such a way that it is confined to propagate, either co-directionally or contra-directionally, in only one arm of the interferometer together with the lightwave signal at the predetermined wavelength. This arm includes the semiconductor optical amplifier. In this way, the original data signal is utilized effectively to maximize the interference effect, which is required for wavelength conversion, while minimizing the problems associated with simultaneously saturating amplifiers in the interferometer structure.
Optical apparatus for transferring a representation of information from a first signal to a second signal, said first and second signals being lightwave signals at different wavelengths, the apparatus comprising,
Optical apparatus responsive to first and second lightwave signals, said first and second signals being lightwave signals at different wavelengths, the apparatus comprising,
Dependencies are inferred from the claim text.