The authors demonstrate the performance of a dynamic and reconfigurable metro-size wavelength-division-multiplexing (WDM) ring employing eight cascaded linear optical amplifiers. The ring has eight uncorrelated WDM channels, modulated at 10 Gb.s each. Measured Q-factor of all channels is between 17.6 and 18.7 dB, corresponding to a bit-error of less than 2 x 10 (-14). In an add/drop experiment, dynamic switching of channels does not affect transmission quality of the through channels.
Crijns, J. J. J., Spiekman, L. H., Hoven, van den, G. N., Tangdiongga, E., & Waardt, de, H. (2002). Static and dynamic switching performance of a metro WDM ring using linear optical amplifiers. IEEE Photonics Technology Letters, 14(10), 1481-1483. https://doi.org/10.1109/LPT.2002.802425