Ultra-broadband quadrature squeezing with thin-film lithium niobate nanophotonics

Understand

Squeezed light is a key quantum resource that enables quantum advantages for sensing, networking, and computing applications.

• The scalable generation and manipulation of squeezed light with integrated platforms are highly desired for the development of quantum technology with continuous variables.
• In this letter, we demonstrate squeezed light generation with thin-film lithium niobate integrated photonics.
• Para-metric down-conversion is realized with quasi-phase matching using ferroelectric domain engineering.