  We consider a nonlinear coupler with two Kerr-like oscillators mutually
coupled by continuous linear interaction and excited by a series of ultra-short
external pulses. We show that the system behaves as nonlinear quantum scissors.
It evolves such a way that it can be treated as qubit-qubit system. We derive
analytic formulas for the probabilities of the states involved in the system's
evolution and show that they differ from those already discussed in the
literature and corresponding to the continuously excited models. Moreover, for
model discussed here, maximally entangled Bell states can be generated with
high efficiency.
