Patent ID: 6603914
Filing Date: 2003-08-05
Classification: C03B,G02B

Abstract:
A dispersion comprising fiber, comprising:a core, cladding, including a first cladding region surrounding the core, a second cladding region surrounding the first cladding region, and a third cladding region surrounding the second cladding region, the core, and the first, second, and third cladding regions being doped to create a refraction index profile characteristic of dispersion compensating fiber, a portion of the cladding being doped with phosphorus, thereby resulting in splice loss reduction, the phosphorus-doped portion of the cladding also being doped with a second dopant to compensate for an increase in refractive index induced by the phosphorus, wherein the core is doped with geranium, the first cladding region is doped with fluorine, and the second cladding region is doped with geranium and fluorine.