Suppressing chromatic dispersion fluctuation for broadband optical parametric gain in highly nonlinear tellurite microstructured optical fibers

Abstract

We investigate the effect of chromatic dispersion fluctuation on the performance of fiber optical parametric amplification (FOPA) using tellurite hybrid microstructured optical fibers which have highly nonlinear coefficient and high freedom in tailoring chromatic dispersion. When a tellurite-glass buffer layer is added around the central core, the new tellurite hybrid microstructured optical fiber can suppress the fluctuation of chromatic dispersion which is caused by the variation in the core diameter and fiber transverse geometry. As a result, high signal gain and broad bandwidth of FOPA can be maintained.