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 corresponding 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.
Document Details
- Document Type
- Technical Report
- Publication Date
- Sep 01, 1979
- Accession Number
- ADA339228
Entities
People
- Kenneth W. Kaiser
Organizations
- Charles Stark Draper Laboratory