Title :
An arrangement of transmission-fiber dispersions for increasing the spacing between optical amplifiers in lumped repeater systems
Author :
Henmi, Naoya ; Saito, Tomoki ; Nakaya, Shogo
Author_Institution :
Opto-Electron. Res. Labs., NEC Corp., Tokyo, Japan
Abstract :
A method for suppressing degradation due to nonlinearities in transmission fibers in lumped repeater systems is proposed. This method increases optical amplifier repeater spacing by setting a normal dispersion fiber as a transmission fiber, and by setting a 1.3- mu m zero-dispersion wavelength fiber as a dispersion compensator at the end in each repeater spacing so as to keep the total dispersion of the complete amplifier repeater spacing at around zero. Employing this method, a less than 1-dB power penalty, 10-Gb/s, 950-km transmission has been demonstrated, keeping the repeater spacings at 95 km and setting the repeater output power at 13 dBm.<>
Keywords :
fibre lasers; light transmission; nonlinear optics; optical communication equipment; optical dispersion; repeaters; 1.3 micron; 10 Gbit/s; 20 mW; 950 km; amplifier repeater spacing; dispersion compensator; lumped repeater systems; nonlinearity degradations suppression; normal dispersion fiber; optical amplifiers; power penalty; repeater output power; transmission-fiber dispersions; zero-dispersion wavelength fiber; Degradation; Fiber nonlinear optics; Optical distortion; Optical fiber amplifiers; Optical mixing; Optical noise; Power generation; Repeaters; Semiconductor optical amplifiers; Stimulated emission;
Journal_Title :
Photonics Technology Letters, IEEE
