Patent ID: 11914190
Assignee: HUAWEI TECHNOLOGIES CO., LTD.
Field: Optics (Instruments)
Classification: CPC G | IPC G

Claim 0:
1. An optical-phased array (OPA) beam-steerer comprising:
an optical switch comprising a switch input to receive light, the optical switch further comprising a plurality of switch outputs, the optical switch configured for selecting any one of the switch outputs and for directing the light to the selected switch output, the light having associated thereto an optical phase and a wavelength;
a star coupler (SC) comprising a plurality of SC inputs and a plurality of SC outputs, the SC inputs each coupled to a different switch output of the plurality of switch outputs to receive the light from the selected switch output, the SC configured to produce an optical phase relationship in the phase of the light at the plurality of SC outputs, the optical phase relationship depending from the selected switch output; and
a plurality of grating couplers, the grating couplers each coupled to a different SC output of the plurality of SC outputs to receive the light from the SC outputs, the grating couplers configured to emit a light beam from the light, the light beam having associated thereto a first angle of emission with respect to a horizontal direction in a field of view and a second angle of emission with respect to a vertical direction in the field of view, the first angle of emission depending from the optical phase relationship, the second angle of emission depending from the wavelength.