公开(公告)号：US09971096B2

公开(公告)日：2018-05-15

申请号：US15169836

申请日：2016-06-01

Applicant: Cisco Technology, Inc.

Inventor： Kal Shastri ,  Rao Yelamarty ,  Neeraj Dubey ,  David Piede ,  Weizhuo Li

IPC: G02B6/30 ,  G02B6/36 ,  G02B6/136 ,  G02B6/12

CPC classification number: G02B6/30 ,  G02B6/136 ,  G02B6/3652 ,  G02B6/3692 ,  G02B2006/12097 ,  G02B2006/121

Abstract: Embodiments herein include an optical system that passively aligns a fiber array connector (FAC) to a waveguide in a photonic chip. A substrate of the FAC is machined or etched to include multiple grooves along a common axis or plane to hold optical waveguides, or more specifically, the fibers of the optical cables in the FAC. To align the fibers to the photonic chip, one of the fibers is disposed in an alignment trench which has a width that is substantially the same as the diameter of the fiber. When the fiber registers with the alignment trench, the fiber is aligned with a waveguide disposed at the end of the trench. Because the pitch between the fibers can be precisely controlled, aligning one of the fibers using the alignment trench results in the other fibers becoming passively aligned to respective waveguides in the photonic chip.