Patent ID: 11953720
Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY LTD.
Field: Optics (Instruments)
Classification: CPC G | IPC G

Claim 17:
18. A photonic circuit, comprising:
a waveguide;
an optical modulator disposed adjacent to and optically coupled to the waveguide, the optical modulator comprising:
an optical coupling portion including an intrinsic semiconductor;
a first electrical coupling portion adjacent to the optical coupling region, and having a first type doping; and
a second electrical coupling portion adjacent to the optical coupling region, and

having a second type doping; and
a heater disposed on the optical modulator,
wherein the optical modulator is configured to receive a first voltage through the first electrical coupling portion and the second electrical coupling portion to decrease a resonant wavelength of the optical modulator, and wherein the heater is configured to increase the resonant wavelength of the optical modulator thermally.