Nonlinearity in fibres arises primarily from the intensity-dependent refractive index, but it is the way in which this nonlinearity and the fibre dispersion combine to influence light propagation ...

A singlemode optical fiber designed to reduce chromatic dispersion. The fiber core is fabricated in several layers with different refractive indices running in parallel throughout its length.

Devices can be designed with well-controlled and narrow lasing linewidths, thus minimizing the effect of fibre dispersion and allowing multiple (∼100) wavelengths to be carried in the same fibre ...