We are interested in realizing devices where optical nonlinearity and noise are a resource rather than a nuisance. For example, in Ref.  we showed how to realize a nonlinear optical isolator with zero reflection. In Ref.  we showed how the detection speed and sensitivity of a nonlinear optical sensor can be enhanced with noise.
References S.R.K. Rodriguez
Enhancing the speed and sensitivity of a nonlinear optical sensor with noise
Phys. Rev. Applied 13, 024032 (2020). pdf  S.R.K. Rodriguez, V. Goblot, N. Carlon Zambon, A. Amo, and J. Bloch
Non-reciprocity and zero reflection in nonlinear cavities with tailored loss
Phys. Rev. A 99, 013851 (2019). pdf
In the near-future, we aim to experimentally realize devices as discussed in Refs. [1,2]