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Updated: Aug 29, 2026

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Shaping the Amplitude and Phase of Laser Beams by Using a Phase-only Spatial Light Modulator
Published on: January 28, 2019
Independent phase and amplitude control of a laser beam by use of a single-phase-only spatial light modulator
Vincent Bagnoud1, Jonathan D Zuegel
1Laboratory for Laser Energetics, University of Rochester, 250 East River Road, Rochester, New York 14623, USA. vbag@lle.rochester.edu
Optics Letters
|February 5, 2004
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.

