公开(公告)号：WO2022197339A1

公开(公告)日：2022-09-22

申请号：PCT/US2021/062996

申请日：2021-12-13

Applicant: APPLE INC.

Inventor： SOSKIND, Yakov G. ,  SHPUNT, Alexander ,  TOWNSEND, Graham C.

IPC: G02F1/225 ,  G02F1/29

Abstract: An optical transmission device (30, 80, 90) includes a waveguide (50, 92) including a transparent medium (52) having mutually-parallel first and second surfaces arranged so that light propagates within the waveguide by internal reflection between the first and second surfaces. At least one light source (58) is configured to inject coherent light into the waveguide. A first array of diffractive structures (64, 96) is applied to the waveguide and configured to couple respective beams (66) of the coherent light out through the first surface of the waveguide. The device includes a second array of tunable optical phase modulators (70), which are overlaid on respective ones of the diffractive structures in the first array and are configured to apply different respective phase shifts to the respective beams, thereby modulating a far-field light pattern (31) formed by interference between the beams.

公开(公告)号：WO2019050596A1

公开(公告)日：2019-03-14

申请号：PCT/US2018/038140

申请日：2018-06-19

Applicant: APPLE INC.

Inventor： SHPUNT, Alexander ,  SUTTON, Andrew J. ,  SOSKIND, Yakov G.

IPC: H01S5/183 ,  H01S5/14

CPC classification number: H01S5/141 ,  H01S3/0071 ,  H01S3/08009 ,  H01S3/08059 ,  H01S5/0215 ,  H01S5/02236 ,  H01S5/1032 ,  H01S5/105 ,  H01S5/183 ,  H01S5/18341 ,  H01S5/1838

Abstract: An optoelectronic device (20, 60, 80, 120, 140, 180, 200, 240, 280) includes a semiconductor substrate (24, 84, 144, 204, 244) and a vertical-cavity surface-emitting laser (VCSEL) (22, 82, 142, 202, 242) light source formed on the substrate and configured to emit coherent light at a predefined wavelength along a beam axis (26, 86, 146, 206, 246) perpendicular to a surface of the substrate. A block (28, 88, 148, 208, 248) of a transparent material is mounted on the surface of the substrate and forms, with the VCSEL, a resonant cavity at the predefined wavelength having an entrance face (36, 96, 156, 216, 256) that is aligned with the beam axis and an exit face (42, 104, 168, 228, 310) that is laterally displaced with respect to the entrance face along a cavity axis (40, 100, 160, 220, 260, 300) running parallel to the surface of the substrate.