  Using electromagnetically induced transparency we show how the
opto-mechanical systems can be used both as memory elements as well as for the
transduction of optical fields. We use a double cavity optomechanical system
which facilitates such applications. By tuning the frequency of the second
cavity one can produce output fields at a variety of frequencies. We present
analytical results for the steady state behavior which is controlled by the
power and the detuning of the field driving the second cavity.
