Patent ID: 11971573
Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY LTD.
Field: Optics (Instruments)
Classification: CPC G | IPC G

Claim 6:
7. The optical coupler of claim 6, wherein the first intermediate waveguide core layer is spaced apart from the first outermost waveguide core layer by between 6% and 13%, inclusive, of a distance d, the central waveguide core layer is spaced apart from the first intermediate waveguide core layer by between 12% and 26%, inclusive, of the distance d, the second intermediate waveguide core layer is spaced apart from the first outermost waveguide core layer by between 18% and 39%, inclusive, of the distance d, the second outermost waveguide core layer is spaced apart from the first outermost waveguide core layer by between 24% and 52%, inclusive, of the distance d, and the distance d is between 1 μm and 4 μm, inclusive.