OPTICAL MODULATOR
An optical modulator includes a first mesa waveguide and a second mesa waveguide. Each of the first mesa waveguide and the second mesa waveguide includes a first semiconductor layer that has a p-type conductivity and is provided on a substrate, a second semiconductor layer that has a p-type conducti...
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Format: | Patent |
Sprache: | eng |
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Zusammenfassung: | An optical modulator includes a first mesa waveguide and a second mesa waveguide. Each of the first mesa waveguide and the second mesa waveguide includes a first semiconductor layer that has a p-type conductivity and is provided on a substrate, a second semiconductor layer that has a p-type conductivity and is provided on the first semiconductor layer, a core layer provided on the second semiconductor layer, and a third semiconductor layer that has an n-type conductivity and is provided on the core layer. The first semiconductor layer has a dopant concentration greater than a dopant concentration in the second semiconductor layer. |
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