Bragg gratings in two-layer core planar silica-on-silicon waveguides and application to integrated lasers

P.V.S. Marques, J.R. Bonar, A.M.P. Leite, J.S. Aitchison
2007 Electronics Letters  
A neodymium-doped glass waveguide laser based on a new structure employing two core layers is reported. This double-layer structure allows a photosensitive layer to be integrated with an efficient gain layer. Singlemode operation was obtained with a lasing threshold of 93 mW and an efficiency of 0.6%.
doi:10.1049/el:20070679 fatcat:rbd4bbzogbcspfkuvcs6cq6d2q