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Ultra-long-haul 112 Gb/s PM-QPSK transmission systems using longer spans and Raman amplification
John D Downie1, Jason Hurley, Dragan Pikula
1Corning Incorporated, 1 Riverfront Plaza, SP-AR-02-1, Corning, NY 14831, USA. downiejd@corning.com
Optics Express
|April 27, 2012
Abstract:
Ultra-long-haul transmission at distances greater than 10,000 km is investigated for 112 Gb/s PM-QPSK signals using span lengths of 75 km and 100 km and all-Raman amplification. Two different ultra-low loss and large effective area optical fibers are studied. We demonstrate a reach length of 10,200 km for a 40 channel system using a fiber with effective area 112 μm(2) with 100 km spans, and a reach length of 13,288 km for a system with 75 km spans using a fiber with effective area of 134 μm(2).
