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 made of crystalline silicon and a ridge made of non-crystalline silicon (e.g., amorphous silicon). In some embodiments, the ridge of the waveguide mode expander has a plurality of stages, the plurality of stages have different widths and/or thicknesses at a given cross section.
申请公布号
WO2015183992(A1)
申请公布日期
2015.12.03
申请号
WO2015US32725
申请日期
2015.05.27
申请人
SKORPIOS TECHNOLOGIES, INC.
发明人
LAMBERT, DAMIEN;KUMAR, NIKHIL;MARCHENA, ELTON;LIU, DAMING;LI, GUOLIANG;ZYSKIND, JOHN