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Independent phase and amplitude control of a laser beam by use of a single-phase-only spatial light modulator

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Abstract

A phase-only spatial light modulator is used in conjunction with a spatial filter to provide independent control of the phase and amplitude of a laser beam. Continuous amplitude modulation of the beam is achieved with a resolution relevant to beam shaping of high-energy laser beams. Amplitude beam correction in a closed loop is demonstrated.

© 2004 Optical Society of America

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