Coherent-feedback control strategy to suppress spontaneous switching in ultralow power optical bistability
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 ultralow power operation but potentially problematic because of quantum fluctuation-induced spontaneous switching. In this letter 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.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- May 09, 2011
- Source ID
- 10.1063/1.3589994
Entities
People
- Hideo Mabuchi
Organizations
- Army Research Office
- Stanford University