Integrated single and multi-layer Si3N4 platform for ultralow loss propagation and small bending radii. - Daryl T. Spencer; Martijn J. R. Heck; Renan Moreira; Jock Bovington; John E. Bowers 001; Arne Leinse; H. H. Van den Vlekkert; René G. Heideman; Marcel Hoekman; Theo T. Veenstra (OFC, 2014)