Controlling The Optical Properties of Intersecting Waveguides: Fractionally Doping The Intersection RegionDouglas M. GillLeon McCaughanet al.1991IEEE JQE
Reducing Radiative Loss in Intersecting Waveguides by Fractionally Doping the Intersection RegionDouglas M. GillNiraj Agrawalet al.1990IEEE Photonics Technology Letters