Single-material submicron microstructured fibres for broadband applications in exact slope compensation or zero-dispersion propagation

Dispersion Compensating Fibres for Fibre Optic Telecommunication Systems

“…On the contrary, germanium dioxide raises n eff . The key feature is not to raise or lower a certain index, but to create large index contrast between the fibre's core index and its n eff of the cladding [2].…”

“…When a compensating fibre works at a certain λ, optical pulses can be transmitted using one or -in general -low amount of WDM channels. As it has already been mentioned above, MOFs are suitable for designing the compensating fibres because they allow huge index contrast and offer many parameters to be optimized (core size, hole radius, lattice pitch, amount of rings of holes) in order to optimize waveguide dispersion [2].…”

“…To reduce losses, it is often required avoiding doping the MOF's core. Instead, one could consider using octagonal [25] and decagonal [26] lattice, or more sophisticated lattice arrangements [2].…”

“…Then, high confinement of light waves and strong waveguide dispersion is possible. The geometrical parameters of the fibre are in Table 9 and in Figure 14 [2]. CD and loss are simulated for the 1 st light mode.…”

“…Photonic Crystal Fibres (PCF) could be a suitable solution for the problem of CD in high-speed transmission systems, especially those using Wavelength Division Multiplexing (WDM) to increase the symbol rate [2].…”