Patent ID: 11968034
Assignee: X DEVELOPMENT LLC
Field: Telecommunications (Electrical engineering)
Classification: CPC H  G | IPC G  H

Claim 23:
24. A photonic device, comprising:
an input region adapted to receive an optical signal including a multiplexed channel, the multiplexed channel characterized by a distinct wavelength;
a dispersive region, optically coupled with the input region to receive the optical signal, the dispersive region including a plurality of sub-regions defined by an inhomogeneous arrangement of a first material and a second material; and
a plurality of output regions, optically coupled with the input region via the dispersive region;
wherein:
the plurality of sub-regions include an input channel section, one or more coupler sections, and one or more branching sections;
the plurality of sub-regions together configure the photonic device to demultiplex the optical signal and to isolate the multiplexed channel at a first output region of the plurality of output regions; and
a first coupler section of the one or more coupler sections is optically coupled with the input region via the input channel section, wherein a second coupler section is optically coupled with the first coupler section via a first branching section of the one or more branching sections, wherein the first coupler section comprises one or more channels defined by a distribution of the first material and the second material, wherein the second coupler section comprises two or more channels defined by a different distribution of the first material and the second material, and wherein the second coupler section comprises twice as many channels as the first coupler section.