Improving the Detection of Squeezed Light in the Presence of Loss
Tian Li, Brian E. Anderson, Travis Horrom, Bonnie L. Schmittberger, Kevin M. Jones, Paul D. Lett · 2017
Squeezed light has many applications, but its quantum advantages disappear quickly with increasing loss. Here we show that a four-wave-mixing-based phase-sensitive amplifier can be used to preserve squeezing even in the presence of substantial loss.