Ultra broadband flat dispersion tailoring on reversed-rib chalcogenide glass waveguide
Zhai Yanfen, Qi Renduo, Yuan Chenzhi, Zhang Wei†, 
, Huang Yidong
, Huang Yidong Dispersion of the fundamental quasi-TE and quasi-TM modes in the reversed-rib waveguide with/without the slot. The solid red and black lines are the dispersion of the quasi-TE and quasi-TM modes in the reversed-rib waveguide with a slot, respectively. The dashed red and black lines are the dispersion of the quasi-TE and quasi-TM modes in the reversed-rib waveguide without slot, respectively. The blue dashed-dotted line is the material dispersion of the As2S3.
