Abstract
Electrical address circuits developed for driving fast-switching ferroelectric liquid-crystal spatial light modulators (SLM) can be programmed to increase the speed of much slower responding nematic liquid-crystal SLMs. Using an addressing circuit that can switch as fast as , voltages are programmed for values of phase that exceed the desired phase, and when the phase reaches the desired value, the voltage is switched to the required steady-state voltage. For a SLM that has a phase range of and that is programmed over a range, switching speed is reduced from to between 71 and . The speedup algorithm is applied to each pixel of the SLM together with a digital correction for a spatially nonuniform phase.
© 2006 Optical Society of America
Full Article | PDF ArticleMore Like This
David Engström, Per Rudquist, Jörgen Bengtsson, Koen D'havé, and Sheila Galt
Appl. Opt. 45(21) 5258-5269 (2006)
David Armitage, J. I. Thackara, and W. D. Eades
Appl. Opt. 28(22) 4763-4771 (1989)
Oleg Pishnyak, Susumu Sato, and Oleg D. Lavrentovich
Appl. Opt. 45(19) 4576-4582 (2006)