Optical switching and normal mode splitting in hybrid semiconductor microcavity containing quantum well and Kerr medium driven by amplitude-modulated field

ABSTRACT

We theoretically investigate optical bistability/multistability for all optical switching signature in a hybrid semiconductor microcavity system comprising a quantum well and a Kerr nonlinear substrate. The system is essentially two optically coupled microcavities with one of the microcavity being driven by an external amplitude-modulated pump laser. We show that the switching between bistable and multistable behaviour is influenced by the modulated pump laser, Kerr nonlinearity and the optical coupling between the two microcavities. We further investigate the intracavity spectrum of quantum fluctuations which exhibit the well-known normal mode splitting (NMS). The NMS behaviour is also found to be influenced by the system parameters. These results demonstrate that the present hybrid nonlinear system can be used in designing sensitive optical devices.

KEYWORDS:

• Quantum well
• Kerr nonlinearity
• semiconductor microcavity

Acknowledgements

P.K. Jha and A.B.B are thankful to SERB Department of Science and Technology, New Delhi, for the financial support under SERB Project No.: EMR/ 2017/0019870).

Disclosure statement

No potential conflict of interest was reported by the author(s).

Additional information

Funding

P.K. Jha and A.B.B are thankful to SERB Department of Science and Technology, New Delhi, for the financial support under SERB Project No.: EMR/ 2017/0019870).