Impairments Due to Burst-Mode Transmission in a Raman-Based Long-Reach PON Link

• Published in: IEEE photonics technology letters Vol. 19; no. 19; pp. 1490 - 1492
• Main Authors: Kjaer, Rasmus, Monroy, Idelfonso Tafur, Oxenlowe, Leif K., Jeppesen, Palle, Palsdottir, Bera
• Format: Journal Article
• Language: English
• Published: New York IEEE 01.10.2007; The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
• Subjects: Bandwidth; Burst-mode traffic; Bursting; Channels; Costs; crosstalk; Erbium-doped fiber amplifier; Gain; Impairment; Links; Noise levels; Optical amplifiers; Passive optical networks; passive optical networks (PONs); Power generation; Power measurement; Raman amplification; Semiconductor optical amplifiers; Stimulated emission; Telecommunication traffic; Traffic engineering; Traffic flow
• ISSN: 1041-1135; 1941-0174
• DOI: 10.1109/LPT.2007.903768

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.