2012/10/31 by Saleh Rahimi-Keshari, Matthew A. Broome, Robert Fickler +3 · 1 citation
Physics and Astronomy · #quant-ph
paper · pdf · doi:10.1364/oe.21.013450
published as Optics Express, Vol. 21, Issue 11, pp. 13450-13458 (2013) · 9 pages, 4 figures
arxiv created 2013/05/31 · arxiv updated 2013/06/03
We introduce an efficient method for fully characterizing multimode linear-optical networks. Our approach requires only a standard laser source and intensity measurements to directly and uniquely determine all moduli and non-trivial phases of the matrix describing a network. We experimentally demonstrate the characterization of a 6×6 fiber-optic network and independently verify the results via nonclassical two-photon interference.