A recently proposed passive-optical-network (PON) link based on distributed Raman amplification is tested with disturbing burst-mode traffic. The resulting impairments are quantified through penalty measurements on a single surviving data channel as a function of the disturbing channel power. When the disturbing channels co- or counter propagate with the data channel, penalties of less than 1 dB are found for disturbing input powers up to 7 and 11 dBm, respectively. The penalty is further reduced when a moderate amount of continuous-wave light is used to clamp the gain. The results indicate that the highly linear PON link is a promising candidate for long-reach feeder links in future, high-capacity PON systems with burst-mode traffic.
Kjær, R., Tafur Monroy, I., Oxenløwe, L. K., Jeppesen, P., & Palsdottir, B. (2007). Impairments due to burst-mode transmission in a Raman-based long reach PON link. IEEE Photonics Technology Letters, 19(19), 1490-1492. https://doi.org/10.1109/LPT.2007.903768