Benyuan Zhu, Dave Peckham, Alan H. McCurdy, Robert Lingle Jr., Bera Pálsdóttir, Man F. Yan, Patrick W. Wisk, David J. DiGiovanni
This paper reviews recent progress on ultra-large-area low-loss fibers for next generation large capacity terrestrial long haul optical networks. The key optical fiber properties and their impacts on the transmission performance for 400 Gb/s polarization division multiplexing (PDM) coherent transmissions are discussed; and the practical consideration of the large-area fibers, such as splicing and cabling for terrestrial transport systems is also briefly addressed. In addition, we describe two advanced optical fiber amplifier technologies that will improve the efficiency in utilization of optical networking resources and reduce total system costs. The design and performance of arrayed optical fiber amplifier using a compact ribbonized erbium doped fiber (EDF) for next generation reconfigurable optical add/drop multiplexer (ROADM) nodes are discussed, and the performance characteristics of complementary Raman/erbium doped fiber amplifier (EDFA) for seamless C+L band transmissions are described.
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