Coherent-feedback control strategy to suppress spontaneous switching in ultra-low power optical bistability
Quantum Physics
2015-05-27 v1 Optics
Abstract
An optical resonator with intracavity Kerr nonlinearity can exhibit dispersive bistability suitable for all-optical switching. With nanophotonic elements it may be possible to achieve attojoule switching energies, which would be very attractive for ultra-low power operation but potentially problematic because of quantum fluctuation-induced spontaneous switching. In this manuscript I derive a quantum-optical model of two Kerr-nonlinear ring resonators connected in a coherent feedback loop, and show via numerical simulation that a properly designed `controller' cavity can significantly reduce the spontaneous switching rate of a bistable `plant' cavity in a completely embedded and autonomous manner.
Keywords
Cite
@article{arxiv.1101.3461,
title = {Coherent-feedback control strategy to suppress spontaneous switching in ultra-low power optical bistability},
author = {Hideo Mabuchi},
journal= {arXiv preprint arXiv:1101.3461},
year = {2015}
}
Comments
8 pages, 4 color figures