Full quantum state reconstruction of spectral field modes via homodyne detection
S. Cialdi, Carmen Porto, Daniele Cipriani, Stefano Olivares, Matteo G. A. Paris · arXiv (Cornell University) · 2015
We suggest and demonstrate a scheme to reconstruct the two-mode quantum state of optical spectral modes (sidebands) using a single homodyne detector. The method is all-optical and based on the sole assumption of being in the stationary regime. The measurement scheme has been successfully tested on different signals, ranging from uncorrelated coherent states to entangled states generated by two-mode squeezing.