Patent ID: 11906778
Assignee: APPLE INC.
Field: Optics (Instruments)
Classification: CPC G | IPC G

Claim 13:
14. An optical splitter, comprising:
a strip waveguide for inputting light across a wavelength range of light;
a slab waveguide configured to receive the wavelength range of light from the strip waveguide; and
an array of output waveguides positioned to receive the wavelength range of light from the slab waveguide; wherein:
a strip waveguide mode size is proportional to a wavelength in the wavelength range of light;
a diffraction angle of light in the slab waveguide is similar across the wavelength range of light; and
the array of output waveguides comprises:
a center channel waveguide having a first width;
a first pair of adjacent outer channel waveguides each having a narrower width than the first width, wherein the first pair of adjacent outer channel waveguides is positioned to receive a summed optical power that is approximately the same as an optical power received by the center channel waveguide.