  Cavity Optomechanical system is speedily approaching the regime where the
radiation pressure of a single photon displaces the moving mirror. In this
paper, we consider a cavity optomechanical system where the cavity field is
driven by an external field. In the limit of weak mirror-cavity couplings, we
calculate analytically the reflection and transmission rates for cavity field
and discuss the effects of mirror-cavity coupling on the reflection and
transmission.
