Phased-Array Electro-Optic Steering of Large Aperture Laser Beams Using Ferroelectrics

Abstract

We present a device concept for scanning large (> 1 cm) laser beams using a domain micro-engineered ferroelectric device. In our design, the large input beam is divided into smaller beamlets, which are then individually deflected through an angle, and then recombined in the far field to reconstruct the large beam. As a demonstration of concept, a 5-state cascaded rectangular domain micropatterned scanner device with 11 beamlet channels was fabricated in LiTaO3 and was demonstrated to deflect a 1.064-micron infrared laser beam by a total of 10.3 deg at 5.39 kV/mm.

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Document Details

Document Type
Technical Report
Publication Date
May 01, 2005
Accession Number
ADA436128

Entities

People

  • Daren Chauvin
  • David A. Scrymgeour
  • Kenneth L Schepler
  • Lin Tian
  • Venkatraman Gopalan

Organizations

  • Air Force Research Laboratory

Tags

Communities of Interest

  • Sensors

DTIC Thesaurus Topics

  • Air Force
  • Air Force Facilities
  • Air Force Research Laboratories
  • Arrays
  • Beam Steering
  • Detectors
  • Electro-Optical Sensors
  • Government Procurement
  • Governments
  • Laser Beams
  • Lasers
  • Materials
  • Materials Science
  • Military Research
  • Optical Detectors
  • Phased Arrays
  • Steering

Fields of Study

  • Physics

Readers

  • Materials Science and Engineering.
  • Optical Physics and Photonics.

Technology Areas

  • Directed Energy