Resolution and sensitivity of a Fabry-Perot interferometer with a photon-number-resolving detector
Christoph F. Wildfeuer, Aaron J. Pearlman, Jun Chen, Jingyun Fan, Alan L. Migdall, Jonathan P. Dowling · Physical Review A · 2009
With photon-number resolving detectors, we show compression of interference fringes with increasing photon numbers for a Fabry-Perot interferometer. This feature provides a higher precision in determining the position of the interference maxima compared to a classical detection strategy. We also theoretically show supersensitivity if $N$-photon states are sent into the interferometer and a photon-number resolving measurement is performed.