Patent ID: 11880071
Assignee: CORNING RESEARCH & DEVELOPMENT CORPORATION
Field: Optics (Instruments)
Classification: CPC G | IPC G

Claim 17:
18. The method of claim 14, wherein:
thinning of the portion of the first PLC member comprises etching the first PLC member to yield the second thickness region of the first PLC member, with a plurality of first wall elements extending in a transverse direction from the second thickness region of the first PLC member and elevating the plurality of first waveguides relative to the second thickness region of the first PLC member; and
thinning of the portion of the second PLC member comprises etching the second PLC member to yield the second thickness region of the second PLC member, with a plurality of second wall elements extending in a transverse direction from the second thickness region of the second PLC member and elevating the plurality of second waveguides relative to the second thickness region of the second PLC member.