Patent ID: 6646727
Filing Date: 2003-11-11
Classification: G02B,H04B

Abstract:
A quantum optical measurement system for determining an optical characteristic of an optical element comprising:an entangled photon source in optical communication with the optical element to be measured, said entangled photon source generating a plurality of photon pairs (twinons), each of said twinons comprising a first twin photon and a second twin photon, said first twin photon being correlated to said second twin photon in at least one of time, wavelength and polarization; a separation element in optical communication with said optical element to be measured, said separation element providing a first optical path and a second optical path for said twinons; an optical demultiplexer in optical communication with said separation element along said first optical path, said demultiplexer adapted to provide a plurality of spectral beams, one of said spectral beams comprising one of said first twin photon and said second twin photon, from each of said twinons, at a predetermined wavelength; a plurality of first detectors, each of said first detectors adapted to receive a respective one of said spectral beams; and a second detector in optical communication with said separation element along said second optical path.