28 January 2017 Optically amplified 100-gigabit ethernet
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100GBASE-LR4 is an unamplified standard for Ethernet at 100 Gb/s data rate, allowing for connection distances up to 10km, while 100GBASE-ER4 calls for larger optical budget in order to reach at least 40km. We discuss these for high-speed communication between data centers, with particular emphasis on the optical amplification (SOAs) included in the transceiver modules in order to enable long-distance links.
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Leo Spiekman, Leo Spiekman, } "Optically amplified 100-gigabit ethernet", Proc. SPIE 10131, Next-Generation Optical Networks for Data Centers and Short-Reach Links IV, 101310E (28 January 2017); doi: 10.1117/12.2256196; https://doi.org/10.1117/12.2256196

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