A method of producing an arbitrary complex field modulation by use of two pixels of an analog ferroelectric spatial light modulator (SLM) is demonstrated. The method uses the gray-scale modulation capabilities of a SLM to spatially encode the complex data on two pixels. A spatial filter is used to remove the carrier signal. This technique gives fast gray-level amplitude and phase modulation.
© 2001 Optical Society of America
Philip Birch, Rupert Young, David Budgett, and Chris Chatwin, "Dynamic complex wave-front modulation with an analog spatial light modulator," Opt. Lett. 26, 920-922 (2001)