  In the present paper, a unique semiconductor doped glass photonic crystal
fiber has been designed which is suitable for soliton propagation at sub
pico-Joule energy. The fiber promises to yield low and uniform anomalous
dispersion profile and very large optical nonlinearities 25211 W^(-1) km^(-1)
at telecommunication wavelength, thus facilitating soliton formation at
ultralow energy. The observed magnitude of nonlinearity is the highest reported
ever till date in AlGaAs doped glass. The soliton dynamics has been
investigated taking into account of higher-order dispersions and
nonlinearities. Propagating solitons breadth and experience large frequency
shift, which decreases with the increase in the initial pulse width and
increases with the increase in pulse energy. Temporal width of solitons
oscillate, the frequency and amplitude of oscillations increase with the
increase in the value of pulse energy.
