Compact deterministic liquid-crystal polarization controller with single-measurement direct control
This work introduces a compact liquid-crystal polarization controller (LC-PC) that achieves deterministic polarization modulation across the entire Poincaré sphere using only a single measurement of the input state. The device features low loss and voltage, and its control algorithm directly calculates necessary driving voltages based on known rotation axes, enabling high accuracy without needing multiple measurements or iterative optimization.