  Achieving high level of pulsed squeezing, in a platform which offers
integration and stability, is a key requirement for continuous-variable quantum
information processing. Typically highly squeezed states are achieved with
narrow band optical cavities and bulk crystals, limiting scalability. Using
single-pass parametric down conversion in an integrated optical device, we
demonstrate quadrature squeezing of picosecond pulses in a thin-film lithium
niobate strip-loaded waveguide. For on-chip peak powers of less than 0.3 W, we
measure up to -0.33$\pm$0.07 dB of squeezing with an inferred on-chip value of
-1.7$\pm$0.4 dB. This work highlights the potential of the strip-loaded
waveguide platform for broadband squeezing applications and the development of
photonic quantum technologies.
