  Franson-type nonlocal correlation is a testing tool for Bell inequality
violation using noninterfering interferometers, where coincidence measurements
involve an interference fringe of g^((1)) correlation between noninterfering
photon pairs. Like the Bell inequality, Franson correlation is also limited to
a microscopic regime of entangled photon pairs. Here, randomness-based
macroscopic Franson-type nonlocal correlation is presented using
polarization-basis coherent superposition of laser light, where probabilistic
randomness between bipartite orthonormal bases plays an important role for both
Bell inequality and the g^((1)) correlation. Without contradiction to the
conventional understanding of quantumness limited by the particle nature of
photons, the proposed Franson correlation can also be extended to a general
scheme of macroscopic regimes via coherent superposition.
