Dispersion-compensating system and dispersion-compensating fiber with improved figure of merit

摘要

A dispersion-compensating system and a dispersion-compensating fiber have an improved figure of merit and effective area. The dispersion-compensating system comprises a bulk dispersion-compensating module for providing optical-domain bulk dispersion compensation for an optical signal transmission. Additionally, the system may further comprise residual dispersion compensation, which can be performed in the electrical domain following coherent detection of both amplitude and phase of an optical signal. The dispersion-compensating fiber comprises an up-doped core region; a down-doped trench; an up-doped ring; and an outer cladding, and is configured to have a high figure of merit (FOM).

主权项

1. A dispersion-compensating system, comprising:
an up-doped core region; a down-doped trench; and up-doped ring; and an outer cladding, wherein the dispersion-compensating fiber is configured to have an effective area of 90 μm2 or greater, wherein the dispersion-compensating fiber is configured to have a high figure of merit, wherein the figure of merit (FOM) is defined by the equationF⁢⁢O⁢⁢M=-DDCFαDCF,wherein DDCF is the dispersion coefficient, and αDCF is the attenuation coefficient of the dispersion-compensating fiber, and
wherein the figure of merit is greater than 2000 ps/(nm·dB).