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1 February 2014 Multicore EDFA for long-distance transmission
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A multicore Er3+-doped fiber amplifier (MC-EDFA) can be realized by using an amplification medium such as bundled or multi-element Er3+-doped fiber (EDF) and multicore EDF, and employing a discrete pumping or cladding pumping method. In this paper, we report three recently developed MC-EDFAs, which represent all the amplification forms realizable using the amplification medium and pumping method. We also report the importance of an MC-EDFA for constructing a practical long-haul multicore fiber transmission system based on the facts of the progress made on the transmission experiments, and describe further progress on the MC-EDFA.
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Makoto Yamada, Hirotaka Ono, and Shoichiro Matsuo "Multicore EDFA for long-distance transmission", Proc. SPIE 9009, Next-Generation Optical Communication: Components, Sub-Systems, and Systems III, 90090N (1 February 2014);

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