All Optical Switching With a Single Quantum Dot Strongly Coupled to a Photonic Crystal Cavity

We theoretically analyze the optical nonlinearity present at very low optical power in a system consisting of a quantum dot strongly coupled to a cavity, and show that this system can be used for ultralow power and high-speed all-optical switching. We also present numerical simulation results showin...

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Bibliographic Details
Published in:IEEE journal of selected topics in quantum electronics 2012-11, Vol.18 (6), p.1812-1817
Main Authors: Majumdar, A., Bajcsy, M., Englund, D., Vuckovic, Jelena
Format: Article
Language:English
Subjects:
All-optical switch
Cavity resonators
Computer simulation
Delay
High speed
High speed optical techniques
Holes
Mathematical model
Mathematical models
Optical coupling
Optical switches
Optical switching
photonic crystal cavity
Photonic crystals
quantum dot (QD)
Quantum dots
Switches
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Summary:We theoretically analyze the optical nonlinearity present at very low optical power in a system consisting of a quantum dot strongly coupled to a cavity, and show that this system can be used for ultralow power and high-speed all-optical switching. We also present numerical simulation results showing both the detailed temporal behavior of such switch and the time-integrated energy transmission through the cavity. We use two different approaches-a quantum optical one and a semiclassical one-to describe the system's behavior, and observe reasonable agreement between the outcomes of numerical simulations based on these two approaches.
ISSN:1077-260X
1558-4542
DOI:10.1109/JSTQE.2012.2202093