Patent ID: 9310471
Filing Date: 2016-04-12
CPC Classification: G01S,H01S

Claim Text:
1. A method of fabricating a chip-scale scanning lidar comprising: forming a two dimensional (2D) scanning micromirror for a transmit beam on a substrate; forming a two dimensional (2D) scanning micromirror for a receive beam on the substrate; forming a laser diode on the substrate; forming a photodetector on the substrate; forming a first waveguide on the substrate connected on one end of the first waveguide to a first facet of the laser diode; forming a first grating outcoupler on the substrate connected to another end of the first waveguide; forming a second waveguide on the substrate connected on one end of the second waveguide to a second facet of the laser diode; forming a second grating outcoupler on the substrate connected to another end of the second waveguide; forming a first fixed micromirror and a second fixed micromirror in a first dielectric layer; forming a third fixed micromirror in a second dielectric layer; forming a focusing component in a third dielectric layer; bonding the first, second and third dielectric layers together to form a composite structure; aligning the composite structure to the substrate over the laser diode and photodetector; and bonding the composite structure to the substrate over the laser diode and photodetector.