30-GBaud DP 16-QAM transmission in the E-band enabled by bismuth-doped fiber amplifiers

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We report the transmission of five 30-GBaud dual polarization 16-QAM signals over 160 km of standard single-mode fiber in the E-band (1410–1460 nm). The transmission line consists of two 80-km spans and three independent bismuth -doped fiber amplifiers. The developed amplifiers feature a maximum gain of 27.3 dB, 33.8 dB, and 28.3 dB with a minimum noise figure of 4.8 dB, 4.7 dB, and 5.3 dB, respectively. The maximum signal Q2 factor penalty is 4.5 dB, and the overall performance of the system is above the pre-forward-error-correction (FEC) threshold for a 10−15 post-FEC bit error rate. To the best of our knowledge, this is the record experimentally demonstrated transmission length for a coherent detection signal in the E-band
Original languageEnglish
Pages (from-to)5152-5155
Number of pages4
JournalOptics Letters
Issue number19
Publication statusPublished - 1 Oct 2022

Bibliographical note

Funding: HORIZON EUROPE Marie Sklodowska-Curie Actions (813144, 814276); Engineering and Physical Sciences Research Council (EP/R035342/1, EP/S003436/1, EP/S016171/1, EP/V000969/1).
Copyright: Published by Optica Publishing Group under the terms of the Creative Commons Attribution 4.0 License. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI. © 2022 Optica Publishing Group


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