Title:
ACOUSTO-OPTIC BEAM STEERING SYSTEM
Document Type and Number:
WIPO Patent Application WO/2019/135787
Kind Code:
A3
Abstract:
Systems and methods for steering an optical beam in two dimensions are disclosed. The system includes a substrate comprising an acousto-optic antenna array and an acoustic transducer. Each antenna of the antenna array includes a high-confinement surface waveguide carrying a light signal. The acoustic transducer imparts acoustic energy into each surface waveguide as a mechanical wave. Interaction of the light signal and mechanical wave in each surface waveguide induces light to scatter into free space. The light scattered out of the plurality of waveguides collectively defines the output beam. The longitudinal angle of output beam, relative to the substrate, is determined by the relative frequencies of the mechanical waves and the light signals. The transverse angle of the output beam is controlled by controlling the relative phases of the mechanical waves and/or light signals across the surface-waveguide array.
Inventors:
SAFAVI-NAEINI AMIR-HOSSEIN (US)
SARABALIS CHRISTOPHER (US)
WITMER JEREMY (US)
ARRANGOIZ ARRIOLA PATRICIO (US)
VAN LAER RAPHAEL FRANK (US)
SARABALIS CHRISTOPHER (US)
WITMER JEREMY (US)
ARRANGOIZ ARRIOLA PATRICIO (US)
VAN LAER RAPHAEL FRANK (US)
Application Number:
PCT/US2018/040607
Publication Date:
August 08, 2019
Filing Date:
July 02, 2018
Export Citation:
Assignee:
UNIV LELAND STANFORD JUNIOR (US)
International Classes:
G02F1/125; G02F1/11; G02F1/33; G02F1/335
Foreign References:
| US20050248826A1 | 2005-11-10 | |||
| US4735485A | 1988-04-05 | |||
| US5165104A | 1992-11-17 |
Other References:
SARABALIS, C. ET AL.: "Optomechanical antennas for on-chip beam-steering", ARXIV PRE-PRINT, 11 October 2017 (2017-10-11), XP080828069
BALRAM, K. ET AL.: "Acousto-optic and opto-acoustic modulation in piezo-optomechanical circuits", ARXIV PRE-PRINT, 28 September 2016 (2016-09-28), XP080814316
LI, E. ET AL.: "Optical phase shifting with acousto-optic devices", OPTICS LETTERS, vol. 30, no. 2, 15 January 2005 (2005-01-15), pages 189 - 191, XP055628377
BALRAM, K. ET AL.: "Acousto-optic and opto-acoustic modulation in piezo-optomechanical circuits", ARXIV PRE-PRINT, 28 September 2016 (2016-09-28), XP080814316
LI, E. ET AL.: "Optical phase shifting with acousto-optic devices", OPTICS LETTERS, vol. 30, no. 2, 15 January 2005 (2005-01-15), pages 189 - 191, XP055628377
Attorney, Agent or Firm:
WALKER, James, A. (US)
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