HEL Phase Control.

Abstract

This report summarizes progress toward a solution to the problem of HEL control-loop instability in the presence of thermal blooming. Current phase-control-loop structure is analyzed, and a dual-loop structure is proposed. A correspoding closed-loop phase-compensation control algorithm is also proposed, and its fundamental requirements identified. Because the key subsystem impacted by the control algorithm is the HEL deformable mirror, considerable attention is paid to adaptive-optics deformable-mirror requirements for both continuous-wave and pulsed lasers. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Sep 01, 1979
Accession Number
ADA081917

Entities

People

  • Kenneth W. Kaiser

Organizations

  • Charles Stark Draper Laboratory

Tags

Communities of Interest

  • Weapons Technologies

DTIC Thesaurus Topics

  • Adaptive Optics
  • Atmospheric Disturbances
  • Closed Loop Systems
  • Continuous Waves
  • Control Systems
  • Deformable Mirrors
  • Diffraction
  • Distortion
  • High Energy
  • High Energy Lasers
  • Laser Resonators
  • Lasers
  • Measurement
  • Optics
  • Phase Control
  • Pulsed Lasers
  • Shape

Fields of Study

  • Physics

Readers

  • Economics
  • Optical Physics and Photonics.
  • Robotics and Automation.

Technology Areas

  • Directed Energy