New paper in Optical Engineering analyzing the random multiplexing approach in modern LCOS SLMs
A new paper is now published in Optical Engineering entitled Multiplexing onto a spatial light modulator using random binary patterns. In this paper we analyze the random approach for encoding a variety of independent outputs from a multiplexed computer-generated diffractive element displayed on a SLM. Although the technique was demonstrated years ago, nowadays it can be applied with high-resolution SLMs with a very large number of pixels, thus allowing for a larger number of multiplexed functions without significant degradation. Nevertheless, we show that the technique is quite sensitive to the pixel crosstalk caused by the fringing field of modern LCOS SLMS, leading to a significant undesired DC order. Two alternative strategies to avoid this degradation.
The work has been done in collaborators Jeffrey A. Davis and Don M. Cottrell from San Diego State University (USA). It is the first paper published by PhD student Shang Gao.