(Optical Society of America, 2013) García López, Óscar; Lasaosa Medarde, Daniel; López-Amo Sáinz, Manuel; Galarza Galarza, Marko; Ingeniería Eléctrica y Electrónica; Ingeniaritza Elektrikoa eta Elektronikoa
A new active-passive monolithic integration approach for
photonic components based on vertical evanescent coupling is presented.
Two vertically stacked waveguides are used in order to provide full
resonant power transfer between them and avoiding the need of tapered
structures. Light confinement in each waveguide is achieved combining
strong lateral asymmetric structures and bent waveguides, both defined
during lithography. Low propagation losses for the active waveguide and
coupling efficiencies to the passive section as high as 97% have been
obtained.
