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Multicore Erbium Doped Fiber Amplifiers for Space Division Multiplexing Systems

TitleMulticore Erbium Doped Fiber Amplifiers for Space Division Multiplexing Systems
Publication TypeJournal Article
Year of Publication2014
AuthorsAbedin, KS, Fini, JM, Taunay, TF, Supradeepa, VR, Yan, MF, Zhu, B, Bansal, LK, Monberg, EM, DiGiovanni, DJ
JournalJournal of Lightwave Technology
Date Published16 April 2014

We report on the recent development of multicore fiber amplifiers suitable for amplifying space division multiplexed signals. We designed and constructed 7-core amplifiers, where the cores could be pumped individually or simultaneously through the cladding and studied the amplification and noise properties of these amplifiers. In the core-pumped amplifier, the net average gain was 25 dB, and noise figure was less than 4 dB. Using side-coupled cladding pumping, gain over 25 dB was obtained in each of the cores over a 40-nm bandwidth covering the C-band. We present results of numerical simulation that shows ways of further improvement of amplifier performance, including gain, noise figure, and power conversion efficiency (PCE) through optimization of fiber design.