Open AccessCharacterization of the spatially anamorphic phenomenon and temporal fluctuations in high-speed, ultra-high pixels-per-inch liquid crystal on silicon phase modulator
Author(s) -
Jhou Pu Yang,
Feng Ying Wu,
Pei Sin Wang,
Huang Ming Philip Chen
Publication year - 2019
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.27.032168
Subject(s) - liquid crystal on silicon , optics , pixel , materials science , liquid crystal , phase modulation , birefringence , flicker , phase (matter) , modulation (music) , silicon , digital micromirror device , spatial light modulator , dot pitch , optoelectronics , physics , computer science , phase noise , operating system , quantum mechanics , acoustics
High-birefringence liquid crystal (LC) in ultrathin LCOS panels was adopted to prepare high phase precision (mSTD =λ/50) and phase accuracy (mAPAE% ∼8%) with suppressed pixel-level crosstalk effects. In conjunction with optimized digital driving scheme, the zero order light loss was found directly related to the phase accuracy error. Meanwhile, the world's fastest pure phase modulation LCOS with a response time of ∼0.87 ms at 45 °C was also achieved. The low-temporal flicker (P-P ∼2.0%) with high-speed LC responses was demonstrated by applying new digital driving scheme. Finally, the 4K2 K LCOS-SLM (∼7000 PPI) was evaluated its difficulties and opportunities.