公开(公告)号：EP3149522A4

公开(公告)日：2018-02-21

申请号：EP15800295

申请日：2015-05-27

Applicant: SKORPIOS TECH INC

Inventor： LAMBERT DAMIEN ,  KUMAR NIKHIL ,  MARCHENA ELTON ,  LIU DAMING ,  LI GUOLIANG ,  ZYSKIND JOHN

IPC: G02B6/12

CPC classification number: G02B6/14 ,  G02B6/1228 ,  G02B6/132 ,  G02B6/136 ,  G02B6/305 ,  G02B2006/12038 ,  G02B2006/12061 ,  G02B2006/12097 ,  G02B2006/12147 ,  G02B2006/12152

Abstract: A waveguide mode expander couples a smaller optical mode in a semiconductor waveguide to a larger optical mode in an optical fiber. The waveguide mode expander comprises a shoulder and a ridge. In some embodiments, the ridge of the waveguide mode expander has a plurality of stages, the plurality of stages having different widths at a given cross section.