In this paper, we will briefly review the present status of work on all-optical photonic devices, and discuss the properties of nonlinear optical materials that control and limit device performance. We conclude with some projections for future progress in this field.
Peter W. E. Smith,
"All-optical devices: materials requirements", Proc. SPIE 1852, Nonlinear Optical Properties of Advanced Materials, (23 July 1993); doi: 10.1117/12.148433; https://doi.org/10.1117/12.148433