%0 Journal Article %T Spectrum defragmentation based on path-switching mechanism for 1+1 protection in elastic optical networks %A Hua, Ke %A Qiu, Yang %J Proceedings of SPIE %V 11435 %P 1143503-1143503-7 %@ 0277-786X %D 2020-03-12 %I SPIE %~ DeepDyve