Controllable optical bistability and Fano line shape in a hybrid optomechanical system assisted by Kerr medium: Possibility of all optical switching

摘要

We theoretically analyze the optical and optomechanical nonlinearity presentin a hybrid system consisting of a quantum dot(QD) coupled to an optomechanicalcavity in the presence of a nonlinear Kerr medium, and show that this hybridsystem can be used as an all optical switch. A high degree of control andtunability via the QD-cavity coupling strength, the Kerr and the optomechanicalnonlinearity over the bistable behavior shown by the mean intracavity opticalfield and the power transmission of the weak probe field can be achieved.Theresults obtained in this investigation has the potential to be used fordesigning efficient all-optical switch and high sensitive sensors for use inTelecom systems.