Ultra-broadband polarization splitter based on graphene layer-filled dual-core photonic crystal fiber

Zou Hui^†, Xiong Hui, Zhang Yun-Shan, Ma Yong, Zheng Jia-Jin

(color online) The cross section of the proposed dual-core PCF. The gray area represents pure silica, the black circles denote air holes, the red annulus indicates graphene layer.