• A monolithic integrated full-wave bridge rectifier based on 100 nm ultra-thin β-Ga2O3 horizontal Schottky-barrier diodes was successfully fabricated.
• The rectifier exhibits excellent full-wave rectification for AC input signals of 5, 12, and 24 V at various frequencies under solar-blind UV illumination.
• Continuous tuning of the rectified output was achieved through solar-blind UV light-encoding, demonstrating optical programmability.
• This work paves the way for optically programmable Ga2O3 AC-DC converters, advancing power electronics and optoelectronics integration.