Optical modulation device
AssigneeMitsubishi Electric Corporation
InventorsNorio OKADA, Tatsuo HATTA, Atsushi SUGITATSU
Life of this patent
Estimating the term…
Abstract
A semiconductor optical modulation device includes a semiconductor optical modulator, wires, an output side line, an input side line and a resistor. The semiconductor optical modulator is an electroabsorption optical modulator. One of the wires is connected between an electrode of the semiconductor optical modulator and the input side line. The other of the wires is connected between the electrode of the semiconductor optical modulator and the output side line. The resistor is connected in series with the output side line. Impedance of the output side line and impedance of the resistor are different from each other.
Claims6
An optical modulation device comprising:
- an electroabsorption optical modulator that has an electrode and performs optical modulation based on an electrical signal applied to the electrode;
- a first signal line that is connected with the electrode and receives an electrical signal from an external to supply the electrical signal to the electrode;
- a second signal line that is connected with the electrode;
- and
- a resistor that is connected in series with a part of the second signal line and has impedance different from impedance of the second signal line, the part of the second signal line being different from a part of the second signal line that is connected with the electrode.
Dependencies are inferred from the claim text.