US 12,461,321 B2
Optical fiber-to-chip interconnection
Clinton Randy Giles, Watchung, NJ (US); Peter Johannes Winzer, Aberdeen, NJ (US); Ron Zhang, Sunnyvale, CA (US); Peter James Pupalaikis, Ramsey, NJ (US); and Lukas Elsinger, Ghent (BE)
Assigned to Nubis Communications, Inc., New Providence, NJ (US)
Filed by Nubis Communications, Inc., Aberdeen, NJ (US)
Filed on May 25, 2022, as Appl. No. 17/824,854.
Application 17/824,854 is a continuation in part of application No. 17/693,040, filed on Mar. 11, 2022, granted, now 11,982,848.
Claims priority of provisional application 63/316,551, filed on Mar. 4, 2022.
Claims priority of provisional application 63/272,025, filed on Oct. 26, 2021.
Claims priority of provisional application 63/245,559, filed on Sep. 17, 2021.
Claims priority of provisional application 63/245,005, filed on Sep. 16, 2021.
Claims priority of provisional application 63/245,011, filed on Sep. 16, 2021.
Claims priority of provisional application 63/225,779, filed on Jul. 26, 2021.
Claims priority of provisional application 63/223,685, filed on Jul. 20, 2021.
Claims priority of provisional application 63/212,013, filed on Jun. 17, 2021.
Claims priority of provisional application 63/210,437, filed on Jun. 14, 2021.
Claims priority of provisional application 63/208,759, filed on Jun. 9, 2021.
Claims priority of provisional application 63/192,852, filed on May 25, 2021.
Claims priority of provisional application 63/178,501, filed on Apr. 22, 2021.
Claims priority of provisional application 63/175,021, filed on Apr. 14, 2021.
Claims priority of provisional application 63/173,253, filed on Apr. 9, 2021.
Claims priority of provisional application 63/159,768, filed on Mar. 11, 2021.
Prior Publication US 2022/0404566 A1, Dec. 22, 2022
Int. Cl. G02B 6/42 (2006.01)
CPC G02B 6/4227 (2013.01) 56 Claims
OG exemplary drawing
 
1. A method comprising:
providing a photonic integrated circuit including a plurality of vertical-coupling elements disposed along a main surface of the photonic integrated circuit;
attaching an optical subassembly to the photonic integrated circuit;
removably connecting a fiber connector to a ferrule frame, wherein the fiber connector is attached to an array of optical fibers;
aligning the ferrule frame to the optical subassembly using an active alignment process; and
securely connecting the ferrule frame directly to the optical subassembly after the alignment process;
wherein the optical subassembly comprises a first lens array, a second lens array, and a beam displacer, and the active alignment process comprises projecting light from the array of optical fibers through the first lens array, the beam displacer, and the second lens array to the plurality of vertical-coupling elements, including passing light from at least one of the optical fibers through a corresponding lens to a corresponding vertical-coupling element.