Ultra-broadband quadrature squeezing with thin-film lithium niobate nanophotonics
Abstract
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. Parametric down-conversion is realized with quasi-phase matching using ferroelectric domain engineering. With sub-wavelength mode confinement, efficient nonlinear processes can be observed with single-pass configuration. We measure 0.56 ± 0.09 dB quadrature squeezing (∼2.6 dB inferred on-chip). The single-pass configuration further enables the generation of squeezed light with large spectral bandwidth up to 7 THz. This work represents a significant step towards the on-chip implementation of continuous-variable quantum information processing.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Mar 14, 2022
- Source ID
- 10.1364/ol.447695
Entities
People
- Ian Briggs
- Linran Fan
- Pao-kang Chen
- Songyan Hou
Organizations
- National Science Foundation
- Oak Ridge National Laboratory
- Office of Naval Research
- University of Arizona