Electroabsorption modulator having a barrier inside a...

Optical: systems and elements – Optical modulator – Light wave temporal modulation

Reexamination Certificate

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C372S045010, C257S021000

Reexamination Certificate

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07095542

ABSTRACT:
An electroabsorption modulator (10) includes at least one quantum well (26) in a conduction band and a corresponding quantum well (26) in a valence band. A barrier made from InGaAlAs or InGaAsP is formed within each of the quantum wells in the conduction and valence bands.

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