Abstract: The present disclosure provides an integrated photonic chip for optical coupling. The photonic chip includes a substrate, a spot size converter formed on a frontside surface of the substrate, a mirror formed on the frontside surface of the substrate, and a meta-lens formed in or on a backside surface of the substrate. The spot size converter enlarges a diameter of a light beam in the photonic chip from a smaller mode size to a larger mode size. The mirror receives the larger mode size light beam from the spot size converter, and reflects the light beam at an angle into the substrate. The meta-lens collimates the light beam reflected by the mirror and expanded, when passing through the substrate, and outputs the collimated light beam towards the optical device.