Analysis of ASE-related impairments on wavelength-reuse WDM-PONs based on self-seeded reflective SOAs

• Published in: Journal of optical communications and networking Vol. 6; no. 9; pp. 773 - 781
• Main Authors: Duarte, U. R., Rosolem, J. B., Penze, R. S., Romero, M. A.
• Format: Journal Article
• Language: English
• Published: Piscataway IEEE 01.09.2014; The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
• Subjects: Bit error rate; Dispersions; Downstream effects; Fines & penalties; Noise levels; Optical filters; Optical reflection; Optical variables measurement; Passive optical networks; Reflective semi-conductor optical amplifiers; Self-seeding; Semiconductor optical amplifiers; Slicing; Spectra; Tolerances; Topology; Wavelength division multiplexing; Wavelength reuse
• ISSN: 1943-0620; 1943-0639
• DOI: 10.1364/JOCN.6.000773

We experimentally investigate the impact of chromatic dispersion (CD), post-filtering effects (PFEs), and backreflection-induced penalties on intensity-remodulation topologies based on self-seeded directly modulated reflective semiconductor optical amplifiers (RSOAs) acting as downstream carriers. Optical eye diagrams and power penalties as a function of link reach and reflection tolerances, as well as optical spectra and bit error rate (BER) performance up to 100 km, are measured and directly compared to a conventional prespectrum slicing light (PSSL) injection topology, in order to highlight the advantages and drawbacks of the self-seeding scheme. Downstream and bidirectional reaches up to 80 and 60 km, respectively, with a maximum 2 dB power penalty (for a BER of 10 -12 ) at 1.25 Gb/s operation are demonstrated in our self-seeding configuration, which enables enhanced resilience to CD and PFE effects while surpassing the conventional PSSL scheme in about 40 km.