Patent ID: 11929826
Assignee: INFINERA CORPORATION
Field: Telecommunications (Electrical engineering)
Classification: CPC H | IPC H

Claim 1:
2. An optical device in accordance with claim 1, wherein the substrate is a first substrate, the optical device further including:
a second substrate;
third N waveguides, each of which being optically coupled to a corresponding one of the first N waveguides, the third N waveguides being provided on the second substrate;
fourth N waveguides, each of which being optically coupled to a corresponding one of the second N waveguides, the fourth N waveguides being provided on the second substrate; and
a N polarization elements provided on the substrate, each of which having a first port optically coupled to a respective one of the third N waveguides, a second port optically coupled to a respective one of the fourth N waveguides, and a third port.