公开(公告)号：US11415819B2

公开(公告)日：2022-08-16

申请号：US16860527

申请日：2020-04-28

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Duhyun Lee ,  Bochul Park ,  Sunil Kim ,  Junghyun Park ,  Byunggil Jeong

IPC: G02F1/017 ,  G02B6/12 ,  B82Y20/00 ,  G02F3/02 ,  G02B6/34 ,  B82Y10/00

Abstract: A beam steering apparatus includes a substrate; at least one light source provided on the substrate; a first waveguide configured to transmit a first light beam radiated from the at least one light source; at least one beam splitter configured to split the first light beam transmitted by the first waveguide to obtain a second light beam; a second waveguide configured to receive the second light beam; and a quantum dot optical amplifier provided on the second waveguide and comprising a barrier layer, a quantum dot layer, and a wetting layer, the quantum dot optical amplifier being configured to modulate a phase of the second light beam, and to amplify an intensity of the second light beam.