  We investigated temperature and fluence dependent dynamics of the time
resolved optical reflectivity in undoped spin-density-wave (SDW) and doped
superconducting (SC) EuFe$_{2}$(As,P)$_{2}$ with emphasis on the ordered
Eu$^{2+}$-spin temperature region. The data indicate that the SDW order
coexists at low temperature with the SC and Eu$^{2+}$-ferromagnetic order.
Increasing the excitation fluence leads to a thermal suppression of the
Eu$^{2+}$-spin order due to the crystal-lattice heating while the SDW order is
suppressed nonthermally at a higher fluence.
