| 摘要 |
<p>A dispersion compensating optical fiber for use in a high data rate telecommunications span or link. The dispersion compensating optical fiber in accordance with the invention provides excellent compensation of total dispersion over a range of wavelengths (e.g., 1527-1567 nm), thus minimizing signal distortion in wavelength division multiplexed systems. The dispersion compensating fiber has a refractive index profile with a central core segment having an inner peak with a i%, an outer peak with 1%, and a trough with a t% less than both i% and 1%, a moat segment with a 2%, and a ring segment with a 3%. Preferably, t% and 3% are greater than 2%. Also disclosed is an optical transmission span having residual dispersion less than +/-25 ps/km for 100 km of transmission fiber over a wavelength band of 1527-1567 nm.</p> |
