Patent · US Active

Optical receiver using beam combining and system using the same

US7995925B2 · kind B2 · utility

0Cited by
5References
20Claims
0Family size

Assignee

Inventors

Key dates

Filing dateFeb 13, 2009
Grant dateAug 9, 2011
Priority date—
Expiry dateJul 20, 2029

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH04B10/61
  • WIPO fieldOptics
  • WIPO sectorInstruments

Abstract

An optical beam combiner is provided, which allows efficient collection of light for various applications: non-line of sight and free space optical communications, remote sensing, optical imaging and others. A multitude of transverse scattered optical beam portions is captured by the multi-aperture array positioned perpendicular to the beam projection direction. These beam portions are combined first into a single optical waveguide with minimal loss of power. This is achieved by modulating the beam portions phase and coupling ratio of couplers in the optical beam combiner tuned to maximize the final output power. The data is recovered from the received optical beam using coherent detection.

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