Title :
Study of system performance in a 107-km dispersion-managed recirculating loop due to polarization effects
Author :
Sun, Yu ; Lima, Ivan T., Jr. ; Jiao, Hua ; Wen, Jiping ; Xu, Hai ; Ereifej, Heider ; Carter, Gary M. ; Menyuk, Curtis R.
Author_Institution :
CSEE Dept., Maryland Univ., Baltimore, MD, USA
Abstract :
We investigate the polarization evolution for both signal and noise in two 107-km recirculating loops with polarization-dependent loss per round-trip of 0.35 dB and less than 0.1 dB, respectively. When the system is optimized, in the first case, both signal and noise are polarized, while in the second case, the signal tends to depolarize due to the noise. We experimentally measured and theoretically simulated the Q factor distribution, which is far from what is expected for straight-line systems, after 5000 km in the second case. We also suggest a simple method for obtaining the same Q distribution in recirculating loop experiments as expected in straight-line experiments.
Keywords :
Q-factor; optical fibre communication; optical fibre dispersion; optical fibre losses; optical fibre polarisation; optical fibre theory; optical noise; 0.1 dB; 0.35 dB; 107 km; Q distribution; Q factor distribution; dispersion-managed recirculating loop; noise; noise polarization; polarization effects; polarization evolution; polarization-dependent loss; recirculating loop experiments; signal; signal depolarization; signal polarization; simple method; straight-line experiments; straight-line systems; system performance; theoretical simulation; Dispersion; Laboratories; Optical fiber communication; Optical fiber polarization; Page description languages; Propagation losses; Pulse amplifiers; Sun; Switches; System performance;
Journal_Title :
Photonics Technology Letters, IEEE
