Breadboard testing of a phase-conjugate engine with an interferometric wave-front sensor and a microelectromechanical systems-based spatial light modulator.
Laboratory breadboard results of a high-speed adaptive-optics system are presented. The wave-front sensor for the adaptive-optics system is based on a quadrature interferometer, which directly measures the turbulence-induced phase aberrations. The spatial light modulator used in the phase-conjugate engine was a microelectromechanical systems-based piston-only correction device with 1024 actuators. Laboratory experiments were conducted with this system utilizing Kolmogorov phase screens to simulate atmospheric phase distortions. The adaptive-optics system achieved correction speeds in excess of 800 Hz and Strehl ratios greater than 0.5 with the Kolmogorov phase screens.
Baker
Kevin L
KL
Lawrence Livermore National Laboratory, Livermore, California, USA.
Stappaerts
Eddy A
EA
Gavel
Don
D
Wilks
Scott C
SC
Tucker
Jack
J
Silva
Dennis A
DA
Olsen
Jeff
J
Olivier
Scot S
SS
Young
Peter E
PE
Kartz
Mike W
MW
Flath
Laurence M
LM
Krulevitch
Peter
P
Crawford
Jackie
J
Azucena
Oscar
O