Patent ID: 6788848
Filing Date: 2004-09-07
Classification: G02B

Abstract:
An arrayed waveguide grating device comprising:a plurality of input waveguides on a first substrate, wherein said first substrate comprises a cut face; a first portion of an input-side slab waveguide connected to the input waveguides, wherein said first portion of said input-side slab waveguide comprises a cut face which is coincident with the cut face of said first substrate; a second portion of an input-side slab waveguide on a second substrate, wherein said second substrate comprises a cut face which is coincident with a cut face of said second portion of said input-side slab waveguide, said cut face of said second portion of said input-side slab waveguide being fixed to the cut face of said first portion of said input-side slab waveguide to form an input-side slab waveguide; a channel waveguide, array on the second substrate and connected to said second portion of said input-side slab waveguide comprising channel waveguides each having a successively increased length in a predetermined waveguide length increment; an output waveguide on the second substrate; an output-side slab waveguide on the second substrate that connects the channel waveguide array to the output waveguide; and a dolly reinforcing connection of said cut faces of said first portion and said second portion of said input-side slab waveguide.