Coherent-feedback control strategy to suppress spontaneous switching in ultralow power optical bistability
Coherent-feedback control strategy to suppress spontaneous switching in ultralow power optical bistability
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 …