Dispersion managed optical fiber

Details Dispersion managed optical fiber Dispersion managed optical fiber

1998-04-02

1999-03-23

Sanghavi, Hemang

Optical waveguides

Optical fiber waveguide with cladding

359161, G02B 602

Patent

active

058871055

ABSTRACT:
Disclosed is a dispersion managed optical waveguide fiber. The power loss due to four wave mixing is kept low by making the waveguide from sub-lengths of fiber which have non-zero dispersion. The sign of the total dispersion of the sub-lengths is made to alternate along the length of the waveguide, thereby allowing the total dispersion of the waveguide to be managed to a pre-selected target value. It has been discovered that the best performance is obtained when the zero dispersion wavelengths of the sub-lengths are widely and asymmetrically separated. Advantages are realized when the core refractive index profile is changed for sub-lengths having total dispersion of different sign.

REFERENCES:
patent: 5448674 (1995-09-01), Vengsarkar et al.
patent: 5613028 (1997-03-01), Antos et al.
patent: 5778128 (1998-07-01), Wildeman

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