Patent ID: 11906824
Assignee: CISCO TECHNOLOGY, INC.
Field: Optics (Instruments)
Classification: CPC G | IPC G

Claim 1:
2. The method of claim 1, wherein the polycrystalline silicon wings for the upper waveguide include:
an upper hub, made of polycrystalline silicon, that extends in the first direction from the upper ridge;
a first upper wing, made of polycrystalline silicon, that extends in the third direction from the upper hub;
a second upper wing, made of polycrystalline silicon, that extends in the fourth direction from the upper hub;
a first upper interface, made of polycrystalline silicon, located on a distal end of the first upper wing relative to the upper hub and extending in the first direction from the first upper wing; and
a second upper interface, made of polycrystalline silicon, located on a distal end of the second upper wing relative to the upper hub and extending in the first direction from the second upper wing.