Ultra-broadband and compact polarization splitter based on gold filled dual-core photonic crystal fiber

作者：Khaleque Abdul^*; Hattori Haroldo T

来源：Journal of Applied Physics, 2015, 118(14): 143101.

DOI：10.1063/1.4932659

A polarization splitter based on gold filled dual-core photonic crystal fiber (DC-PCF) that can work from 1420 nm to 1980 nm (560 nm bandwidth) is proposed in this work. The splitter has an extinction ratio lower than 20 dB over a large bandwidth with a total length of 254.6 mu m. The key principle of operation of the splitter is the induced change in the refractive index of the y-odd mode when it is coupled to the second order plasmonic mode, while other supermodes are weakly affected by the plasmonic mode. The proposed broadband and compact polarization splitter may find applications in communications and sensing, being capable of working in the infrared and mid-infrared wavelength ranges.

• 出版日期2015-10-14