Higher-order sidebands in optomechanically induced transparency are discussed in a generic optomechanical system. We take account of nonlinear terms and give an effective method to deal with such problems. It is shown that, if a strong control field with frequency ${\omega }_1$ and a weak probe field with frequency ${\omega }_p$ are incident upon the optomechanical system, then there are output fields with frequencies ${\omega }_1\pm 2\Omega$ generated, where $\Omega ={\omega }_p-{\omega }_1$. We analyze the amplitude of the output field ${\omega }_1+2\Omega$ and look at how it varies with the control field and show that the amplitude of the second-order sideband can be controlled by the strong control field.

• Received 2 November 2011

DOI:https://doi.org/10.1103/PhysRevA.86.013815