Patent ID: 11899334
Assignee: KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY
Field: Optics (Instruments)
Classification: CPC G | IPC G

Claim 7:
8. A silicon photonics-based optical modulator comprising:
radio frequency (RF) metal electrodes that operate as grounds;
phase shifters disposed between the RF metal electrodes and optically modulating optical signals transmitted along optical waveguides;
a bias metal electrode disposed between the phase shifters and receiving a first bias voltage through one end thereof from a bias power source located outside of the optical modulator;
resistor-inductors (RLs) connected at one ends thereof to one ends of the RF metal electrodes;
an inductive line disposed between a junction point of other ends of the RLs and a power supply for applying a second bias voltage to the optical modulator and a driving driver; and
a silicon capacitor disposed between the junction point of the other ends of the RLs and the power supply and preventing a degradation of an RF response characteristic of the optical modulator caused by the inductive line.