Abstract

Experimental investigations of 112 Gb/s PM-QPSK transmission are reviewed for systems with 100 km spans and EDFA-only amplification, 200 km spans and hybrid amplification (distributed Raman amplification (DRA) and EDFA), and 100 km spans and DRA-only amplification. By taking advantage of optical fibers with ultra-low loss and very large effective area, transmission distances of 7200 km, 5400 km and 10 200 km, respectively, were achieved for multi-channel transmission with a 50 GHz channel spacing. For the first of these systems, the impact of the signal processing algorithms on the long-haul bit error ratio performance is examined with an emphasis on the sensitivity to the values of key algorithm parameters.

© 2012 IEEE

Ultra-long-haul 112 Gb/s PM-QPSK transmission systems using longer spans and Raman amplification

John D. Downie, Jason Hurley, Dragan Pikula, and Xianming Zhu
Opt. Express 20(9) 10353-10358 (2012)

112 Gb/s PM-QPSK transmission up to 6000 km with 200 km amplifier spacing and a hybrid fiber span configuration

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