  We show that the two-photon Jaynes-Cummings model, feasible of experimental
realization in cavity or ion-trap quantum electrodynamics, can approximately
produce nonlinear coherent states of the field. We introduce these nonlinear
coherent states of the field as $2m$-photon added or subtracted coherent states
in terms of raising and lowering field operators, also known as London phase
operators or Susskind-Glogower operators.
