US 12,111,495 B2
Multiple-tip edge couplers with segmented waveguide cores
Yusheng Bian, Ballston Lake, NY (US)
Assigned to GlobalFoundries U.S. Inc., Malta, NY (US)
Filed by GlobalFoundries U.S. Inc., Malta, NY (US)
Filed on May 31, 2022, as Appl. No. 17/828,139.
Prior Publication US 2023/0384518 A1, Nov. 30, 2023
Int. Cl. G02B 6/12 (2006.01); G02B 6/122 (2006.01); G02B 6/30 (2006.01)
CPC G02B 6/1228 (2013.01) [G02B 6/12004 (2013.01); G02B 6/305 (2013.01); G02B 2006/12097 (2013.01); G02B 2006/12111 (2013.01); G02B 2006/12121 (2013.01); G02B 2006/12147 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A structure comprising:
an edge coupler including a first waveguide core and a second waveguide core adjacent to the first waveguide core in a lateral direction, the first waveguide core including a first section with a first thickness and a first plurality of segments projecting in a vertical direction from the first section, and the second waveguide core including a second section with a second thickness and a second plurality of segments projecting in the vertical direction from the second section,
wherein the first waveguide core includes a third section with a third thickness, and the first plurality of segments have a first height relative to the first section of the first waveguide core equal to a difference between the first thickness and the third thickness.