Nonlinear optical effects in fibres are reviewed with specific reference to their application to all-optical switching. The nonlinear optical loop mirror is described in relation to its switching properties. Applications are presented including, Clock recovery and signal regeneration.
K. J. Blow, K. J. Blow,
"Optical switching", Proc. SPIE 1983, 16th Congress of the International Commission for Optics: Optics as a Key to High Technology, 19835H (26 July 1993); doi: 10.1117/12.2308616; https://doi.org/10.1117/12.2308616