Imaging in planar optics: system design for oblique deflection angles

Planar optics has been successfully demonstrated to be useful for the integration of free space optical systems1. In this context, planar integration means the arrangement of optical elements on the surface of a thick transparent substrate. The light signal travels within the substrate along a folded zig-zag path, reflected at its surfaces. Since planar optics was first proposed, various applications has been demonstrated like array generation2 or imaging3.