  We propose a feasible scheme to realize all-optical photon transmission
switching in a passiveactive optomechanical system, consisting of one ordinary
passive cavity, one active cavity and one common movable membrane oscillator of
perfect reflection, driven by two strong control fields and two weak probe
fields symmetrically. By means of the gain effect of the active cavity, many
novel and valuable phenomena arise, such as frequency-independent perfect
reflection (FIPR) first proposed in this paper, adjustable photon bidirectional
transmission, phase-dependent non-reciprocity and so on. The relevant
parameters used for controlling the all-optical switching are precisely tunable
by adjusting the strengths of control fields and the relative phase of probe
fields. Furthermore, tunable fast and slow light can be realized in our system
by accurately adjusting relevant parameters which is readily and feasible in
experiments. These novel phenomena originate from the effective optomechanical
coupling and the gain effect provide a promising platform for photonic devices,
quantum network node fabrication and quantum information process (QIP).
