16 November 2015 Semiconductor optical amplifiers and Raman amplification for 1310-nm dense wavelength division multiplexed transmission
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Optical Engineering, 54(11), 116104 (2015). doi:10.1117/1.OE.54.11.116104
We investigate the utilization of semiconductor optical amplifiers (SOAs) and quantum-dot laser-based Raman amplifiers in high-capacity dense wavelength division multiplexed (DWDM) 1310-nm transmission systems. Performed simulations showed that in a 10×40  Gbit/s system, the utilization of a single Raman amplifier in a back-propagation scheme can extend the maximum error-free (bit error rate <10 −9 ) transmission distance by approximately 25 km in comparison with the same system utilizing only an SOA used as a preamplifier. We successfully applied a Raman amplifier in an 8×2×40  Gbit/s 1310-nm polarization multiplexed (PolMux) DWDM transmission over 25 km. Conducted experiments showed that the utilization of a Raman amplifier in this system leads to 4-dB improvement of the average channel sensitivity in comparison to the same system utilizing SOAs. This sensitivity improvement can be translated into a higher power budget. Moreover, lower input optical power in a system utilizing a Raman amplifier reduces the four-wave mixing interactions. The obtained results prove that Raman amplification can be successfully applied in 1310-nm high-capacity transmission systems, e.g., to extend the reach of 400G and 1T Ethernet systems.
© 2015 Society of Photo-Optical Instrumentation Engineers (SPIE)
Pawel Mazurek, Pawel Czyzak, Huug de Waardt, Jaroslaw Piotr Turkiewicz, "Semiconductor optical amplifiers and Raman amplification for 1310-nm dense wavelength division multiplexed transmission," Optical Engineering 54(11), 116104 (16 November 2015). https://doi.org/10.1117/1.OE.54.11.116104


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