Patent ID: 8625939
Filing Date: 2014-01-07
Classification: G02B

Abstract:
1. A system of waveguides comprising: a first waveguide having surface roughness along at least one surface; and a second waveguide substantially identical to the first waveguide and having surface roughness along a corresponding at least one surface of the second waveguide that is substantially identical to the surface roughness on the at least one surface of the first waveguide; wherein the first waveguide is separated from the second waveguides by a predetermined distance; wherein the first and second waveguides are configured to receive respective first and second light signals having antisymmetric modes and to propagate the first and second light signals in an antisymmetric super mode; and wherein the predetermined distance between the first and second waveguide is effective for causing at least partial mutual cancellation of at least far-field polarization radiation emanating from the first and second waveguides and resulting from the surface roughness when the first and second waveguide are excited by a propagating antisymmetric super mode.