Share Email Print
cover

Proceedings Paper

Real-time wavefront correction system using a zonal deformable mirror and a Hartmann sensor
Author(s): J. Thaddeus Salmon; Erlan S. Bliss; Theresa W. Long; Edward L. Orham; Robert W. Presta; Charles D. Swift; Richard L. Ward
Format Member Price Non-Member Price
PDF $14.40 $18.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

We have developed an adaptive optics system that corrects up to five waves of 2nd-order and 3M-order aberrations in a high-power laser beam to less than 1/10th wave RMS. The wavefront sensor is a Hartmann sensor with discrete lenses and position-sensitive photodiodes; the deformable mirror uses piezoelectric actuators with feedback from strain gauges bonded to the stacks. The controller hardware uses a VMIE bus. The system removes thermally induced aberrations generated in the master-oscillator-power-amplifier chains of a dye laser, as well as aberrations generated in beam combiners and vacuum isolation windows for average output powers exceeding 1 kW. The system bandwidth is 1 Hz, but higher bandwidths are easily attainable.

Paper Details

Date Published: 1 December 1991
PDF: 9 pages
Proc. SPIE 1542, Active and Adaptive Optical Systems, (1 December 1991); doi: 10.1117/12.48829
Show Author Affiliations
J. Thaddeus Salmon, Lawrence Livermore National Lab. (United States)
Erlan S. Bliss, Lawrence Livermore National Lab. (United States)
Theresa W. Long, Lawrence Livermore National Lab. (United States)
Edward L. Orham, Lawrence Livermore National Lab. (United States)
Robert W. Presta, Lawrence Livermore National Lab. (United States)
Charles D. Swift, Lawrence Livermore National Lab. (United States)
Richard L. Ward, Lawrence Livermore National Lab. (United States)


Published in SPIE Proceedings Vol. 1542:
Active and Adaptive Optical Systems
Mark A. Ealey, Editor(s)

© SPIE. Terms of Use
Back to Top