Effect of Ge Nanoparticles in the Core of Photonic Crystal Fiber on Supercontinuum Generation

Table 1

Specifications of the fabricated PCFs.

Fiber	Solid core diameter	Air hole diameter	Hole-to-hole distance (pitch)	Chromatic dispersion coefficient @ 800 nm	Nonlinear refractive index	Effective nonlinearity
Symbol	—	—	Λ
Unit	(μm)	(μm)	(μm)	(ps/nm/km)	(m^2/W)	(W^-1 km^-1)
Pure silica core PCF	6.0	1.9	4.3	-932.5		3.67
Germanosilicate glass core PCF (without Ge NPs)	4.2	3.3	5.1	-1073.5		7.82
Ge NP-doped germanosilicate glass core PCF	4.1	2.9	5.2	-1238.9		14.41