公开(公告)号：EP1629305A2

公开(公告)日：2006-03-01

申请号：EP04710201.7

申请日：2004-02-11

申请人： Luxtera, Inc. ,  Lawrence, C. Gunn ,  Pinguet, Thierry J. ,  Rattier, Maxime J.

发明人： LAWRENCE, C., Gunn, III ,  PINGUET, Thierry, J. ,  RATTIER, Maxime, J.

IPC分类号： G02B1/00

CPC分类号： G02B6/1228 ,  G02B6/124 ,  G02B6/305 ,  G02B6/34 ,  G02B2006/12097 ,  G02B2006/1213

摘要： An optical waveguide grating coupler (102) for coupling light between a planar waveguide (100) and an optical element such as an optical fiber (106). The optical waveguide grating coupler (102) includes a grating comprising a plurality of elongate scattering elements (103). The optical waveguide grating coupler (102) is preferably flared, and in various embodiments has hyperbolically shaped sidewalls (212). The elongate scattering elements (103) are preferably curved, and in some embodiments, the scattering elements have elliptically curved shapes (216). Preferably, the elongated scattering elements have grating widths selected to accommodate the desired optical intensity distribution.

公开(公告)号：EP1606660A2

公开(公告)日：2005-12-21

申请号：EP04713786.4

申请日：2004-02-23

申请人： Luxtera, Inc.

发明人： GUNN, Lawrence, C., III ,  PINGUET, Thierry, J. ,  RATTIER, Maxime, J. ,  WITZENS, Jeremy

IPC分类号： G02B6/26

CPC分类号： G02B6/124 ,  G02B6/1228 ,  G02B6/126 ,  G02B6/2726 ,  G02B6/2733 ,  G02B6/2773 ,  G02B6/30 ,  G02B6/34 ,  G02B6/4214 ,  G02B2006/1213

摘要： A polarization splitting grating coupler (PSGC) (100) connects an optical signal from an optical element (105), such as a fiber, to an optoelectronic integrated circuit (101). The PSGC (100) separates a received optical signal into two orthogonal polarizations and directs the two polarizations to separate waveguides on an integrated circuit (101). Each of the two separated polarizations can then be processed, as needed for a particular application, by the integrated circuit (1 O 1). A PSGC (100) can also operate in the reverse direction, and couple two optical signals from an integrated circuit to two respective orthogonal polarizations of one optical output signal sent off chip to an optical fiber.