Recent Advances in Graphene-Assisted Nonlinear Optical Signal Processing

Table 1

Comparison among silica, silicon, and graphene.

Platforms	Kerr coefficient	Loss	Compactness	Compatibility
Silica in fiber [21]	~10^−20 m^2/W	Low	Large footprint	Fully compatible
Silicon [22]	~10^−18 m^2/W	High	Compact	Incompatible
Graphene-coated fiber [13]	~10^−11 m^2/W	Low	Compact	Fully compatible

Compatibility of silica in fiber, silicon photonic device, and graphene-assisted nonlinear optical fiber devices with existing optical fiber transmission systems.