Stochastic Anti-symmetric Schrodinger Equations for Non-Manakovian Propagation

Unpolarised and co-propagating ASE depolarizes a cw probe via the fibre's Kerr nonlinearity. We theoretically analyse these previous experimental observations of ultra-fast and PMD-dependent polarization state fluctuations. The probe's propagation does not obey the Manakov equation and is governed by an advanced Schrodinger formalism for addressing fibre PMD.