Multimode fiber having improved index profile

Details Multimode fiber having improved index profile Multimode fiber having improved index profile

G - Physics

02

B

G02B 6/028 (2006.01)

Patent

CA 2744712

A graded index multimode fiber and method of producing the graded index multimode fiber utilize technique of reducing an index profile of the core of the multimode fiber below a standard parabolic index profile. This can be done by changing dopant concentrations in the fiber core over the radius of the fiber core. The result is a multimode fiber having differential mode delay characteristics that are intentionally n minimized. The index profile can be reduced below the standard parabolic index profile over the entire radius of the core, or only for radii above a specified radius.

La présente invention concerne une fibre multimode à gradient d'indice et un procédé de fabrication de cette fibre qui utilise une technique permettant de réduire le profil d'indice du cur de la fibre multimode en dessous d'un profil d'indice parabolique standard en modifiant les concentrations de dopants sur le rayon du cur de la fibre. Le résultat est une fibre multimode présentant des caractéristiques de retard de mode différentiel intentionnellement minimisées. Le profil d'indice peut être réduit en dessous du profil d'indice parabolique standard sur le rayon entier du cur, ou uniquement pour des rayons supérieurs à un rayon spécifié.

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