Array Waveguide Grating (AWG) and planar waveguide are well-known examples of optical horizontal integration. However, there are other lesser known types, such as liquid crystal (LC) arrays for VOAs and switch matrices, erbium or dye doped liquid crystal planar waveguides and EO thin films.These reflect the future technology trends and will usher in a new era in the fiber optic industry. With advanced planar packaging technology encapsulated in-house, Lightwaves2020 offers not blue sky ideas, but consistently performed, mass-produceable LC products.