Patent ID: 11885974
Assignee: META PLATFORMS TECHNOLOGIES, LLC
Field: Optics (Instruments)
Classification: CPC G | IPC F  G

Claim 11:
12. A method, comprising:
outputting, by a waveguide, a first light having a first polarization to a first side of the waveguide;
outputting, by the waveguide, a second light having the first polarization to a second side of the waveguide;
converting, by an optical element assembly disposed at the first side of the waveguide, the first light having the first polarization into a third light having a second polarization, wherein the optical element assembly comprises a reflector configured to provide an optical power that is variable, and a phase-modulator disposed between the waveguide and the reflector;
transmitting, by a polarizer disposed at the second side of the waveguide, the third light having the second polarization; and
blocking, by the polarizer, the second light having the first polarization.