Patent · US Active

Optically-steered RF imaging receiver using photonic spatial beam processing

US11212010B2 · kind B2 · utility

3Cited by
5References
8Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMar 17, 2020
Grant dateDec 28, 2021
Priority date—
Expiry dateMay 15, 2040

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH04B2210/006
  • WIPO fieldMeasurement
  • WIPO sectorInstruments

Abstract

An RF imaging receiver using photonic spatial beam processing is provided with an optical beam steerer that acts on the individual modulated optical signals to induce individual phase delays that produce a phase delay with a linear term, and possibly spherical or aspherical terms, across a two-dimensional wavefront of the composite optical signal to steer the composite optical signal and move the location of the spot on the optical detector array. The optical beam steerer may change the path length or a refractive index for each of the modulated optical signals to induce the requisite phase delays. The optical beam steerer may be implemented, for example, with a Risley prism or liquid crystal or MEMs spatial light modulator.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.