公开(公告)号：US11169426B2

公开(公告)日：2021-11-09

申请号：US16358529

申请日：2019-03-19

Applicant: Analog Devices, Inc.

Inventor： Michael Ziemkiewicz ,  Michael Howard Anderson ,  Tyler Adam Dunn ,  David Edward Fish ,  Scott Dennis Rommel ,  Andrew William Sparks ,  Scott Robert Davis

IPC: G02F1/295

Abstract: A Liquid Crystal Waveguide (LCW) system can provide sub-aperture incoupling or outcoupling of light having an input wavelength and input beamsize defining an aperture characteristic of the system. A Liquid Crystal Waveguide (LCW) can include a generally planar LCW core to receive light via a light input zone for communication toward a light output zone. Sub-aperture interfacial light couplers can be planarly arranged in or parallel to the planar LCW core in the light input zone or the light output zone. Sub-aperture interfacial light couplers can include teeth, prisms, or facets, a photonic crystal metasurface, or a geometric-phased holograph (GPH)). Overall LCW thickness can be reduced, which can be helpful in space-limited applications or for reducing material costs.