A TWO SUBSTRATE PARALLEL OPTICAL SUB-ASSEMBLY

摘要

There is described an optical assembly comprising: a structure for guiding light having a top surface and a bottom surface, and comprising a plurality of grooves on the bottom surface; a plurality of optical waveguides, each being embedded in a corresponding one of the plurality of grooves, and having a coupling surface at one end; and at least two substrates, each comprising an array of optical components attached thereto, the array of optical components being substantially aligned in a one-to-one manner with the coupling surface for a corresponding group of optical waveguides amongst the plurality of optical waveguides, the at least two substrates being spaced apart to form at least one gap, the at least one gap having a non-constant width along a length thereof in order to allow the array of optical components for each one of the at least two substrates to be aligned with the coupling surface for the corresponding group of optical waveguides.