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US 2017/0285372 A1Published application
Optical modulation device
AssigneesFujitsu Limited, Photonics Electronics Technology Research Association
InventorsTakeshi Baba, Tatsuya Usuki, Suguru Akiyama
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Abstract
An optical modulation device includes: an optical waveguide formed above a substrate; a phase modulator disposed on part of the optical waveguide; a capacitor connected to the phase modulator and including a lower electrode and an upper electrode; a resistor connected in parallel to the capacitor; and an appended part integrated with the upper electrode and electrically connected to the resistor, wherein the appended part is smaller in area than the capacitor (upper electrode).
Claims5
An optical modulation device comprising:
- a substrate;
- an optical waveguide formed above the substrate;
- a phase modulator disposed on part of the optical waveguide;
- a capacitor connected to the phase modulator and including a lower electrode and an upper electrode;
- a resistor connected in parallel to the capacitor;
- and
- an appended part integrated with the upper electrode and connected to the resistor,
- wherein the appended part is smaller in area than the capacitor.
5 more elements
Dependencies are inferred from the claim text.