Rapid stochastic spatial light modulator calibration and pixel crosstalk optimisation

Understand

Holographic light potentials generated by phase-modulating liquid-crystal spatial light modulators (SLMs) are widely used in quantum technology applications.

• Accurate calibration of the wavefront and intensity profile of the laser beam at the SLM display is key to the high fidelity of holographic potentials.
• Here, we present a new calibration technique that is faster than previous methods while maintaining the same level of accuracy.
• By employing stochastic optimisation and random speckle intensity patterns, we calibrate a digital twin that accurately models the experimental setup.