A device for optical computing comprises at least one modulator (210, 710, 810, 910, 1010, 1110, 1210, 1310, 1410, 1520, 1610, 1710, 1810, 1910, 2010, 2110, 2210) and at least one waveguide (220, 720, 820, 920, 1020, 1120, 1220, 1320, 1420, 1530, 1620, 1720, 1820, 1920, 2020, 2120, 2220). The at least one modulator (210, 710, 810, 910, 1010, 1110, 1210, 1310, 1410, 1520, 1610, 1710, 1810, 1910, 2010, 2110, 2210) is configured to modulate incident radiation, whereby input radiation is generated. The at least one waveguide (220, 720, 820, 920, 1020, 1120, 1220, 1320, 1420, 1530, 1620, 1720, 1820, 1920, 2020, 2120, 2220) is configured to guide the input radiation along a propagation direction. The at least one waveguide (220, 720, 820, 920, 1020, 1120, 1220, 1320, 1420, 1530, 1620, 1720, 1820, 1920, 2020, 2120, 2220) is configured to nonlinearly optically transform the input radiation propagating in the at least one waveguide, whereby output radiation that is outputted from the waveguide (220, 720, 820, 920, 1020, 1120, 1220, 1320, 1420, 1530, 1620, 1720, 1820, 1920, 2020, 2120, 2220) is optically computed.