Design and fabrication of dispersion-managed fibresby periodic etching during the MCVD process

A new design and fabrication method is proposed for a dispersion-managed fibre from a preform prepared by a single session of the modified-chemical-vapour-deposition (MCVD) process. Periodic etching during the MCVD process is used to change the index structure of the preform periodically along the axial direction. The dispersion measurement of the fabricated prototype fibre shows that desired dispersion management characteristics can be achieved.