Patent ID: 9720190
Date: 2017-08-01
CPC Classifications: G02B,H01L,H04B

Claim:
1. An optical module comprising: at least one optical waveguide provided on an obverse surface of a substrate, wherein each waveguide, of the at least one optical waveguide, propagates four optical signals of differing wavelengths, and wherein each waveguide comprises a core and a cladding; a plurality of grooves provided in each of the at least one optical waveguide on the surface of the substrate and having both a surface orthogonal to the surface of the substrate and an inclined surface, wherein the inclined surface of each groove is at 45 degrees relative to the surface of the substrate, and wherein each groove, of the plurality of grooves, corresponds to a specific wavelength of each optical signal, of the optical signals propagating through each waveguide; four light-emitting and light-receiving (LELR) elements pairs for each waveguide of the substrate, perpendicular to the top surface of the of the substrate and each LELR is aligned with a groove, wherein: a plurality of light-selecting filters each provided on the inclined surface of each groove, of the plurality of grooves in the optical waveguide reflects a specific wavelength 90 degrees, wherein: