State space wavefront reconstructor for an adaptive optics control
First Claim
1. An adaptive optics control system for compensating distorted wavefronts each having a plurality of states including at least one of a velocity, intensities, phase slopes, and branch points, the system comprising:
- a wavefront corrector having a surface controlled by a plurality of actuators;
at least one wavefront sensor adapted to measure at least one state of the wavefront at a current point in time and to generate wavefront sensor output signals indicative of the at least one measured wavefront state; and
a state space wavefront reconstructor adapted to receive the wavefront sensor output signals and generate a plurality of correction signals based thereon to be applied to the wavefront corrector.
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Abstract
A state space wavefront reconstructor for use in an adaptive optics control system is disclosed. The adaptive optics control system comprises a wavefront corrector having a surface controlled by a plurality of actuators, at least one wavefront sensor adapted to measure at least one wavefront state of the wavefront and generate wavefront sensor output signals indicative thereof, and a state space wavefront reconstructor adapted to receive the wavefront sensor output signals and generate a plurality of correction signals based thereon to be applied to the wavefront corrector. The wavefront reconstructor comprises a wavefront velocity estimator, a state space wavefront estimator, and a wavefront phase reconstructor. A method of compensating for the distortion of an optical wavefront using such a state space wavefront reconstructor is also disclosed.
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Citations
46 Claims
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1. An adaptive optics control system for compensating distorted wavefronts each having a plurality of states including at least one of a velocity, intensities, phase slopes, and branch points, the system comprising:
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a wavefront corrector having a surface controlled by a plurality of actuators;
at least one wavefront sensor adapted to measure at least one state of the wavefront at a current point in time and to generate wavefront sensor output signals indicative of the at least one measured wavefront state; and
a state space wavefront reconstructor adapted to receive the wavefront sensor output signals and generate a plurality of correction signals based thereon to be applied to the wavefront corrector. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. A state space wavefront reconstructor for use in an adaptive optics control system for compensating distorted wavefronts, each wavefront having a plurality of states including at least one of a velocity, intensities, phase slopes and branch points, the system having a wavefront corrector and at least one wavefront sensor adapted to measure at least one state of the wavefront at a current point in time, the state space wavefront reconstructor comprising:
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a state space wavefront estimator adapted to estimate a plurality of wavefront states at the current point in time; and
a wavefront phase reconstructor adapted to receive the wavefront state estimates, estimate a wavefront phase at the current point in time, and generate a plurality of correction signals based on the estimated wavefront phases, the correction signals for application to a wavefront corrector in communication with the state space reconstructor. - View Dependent Claims (21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34)
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35. A method of compensating for distortion of an optical wavefront using a state space wavefront reconstructor, the method comprising:
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measuring at least one state of the wavefront with at least one wavefront sensor at a current point in time and generating wavefront sensor output signals indicative of the at least one measured wavefront state;
estimating a plurality of wavefront states at a current point in time;
estimating a wavefront phase at the current point in time based on the estimated wavefront states; and
generating correction signals based on the estimated wavefront phase. - View Dependent Claims (36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46)
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Specification