115.2-THz Aggregate Bandwidth O-band Coherent DWDM Transmission over a High-density 250-μm Coating Multicore Fibre

The rising demand for high transmission bandwidths in optical fibres for short-distance applications can be addressed by increasing the number of cores. Higher core densities in the fibres can be paired with the bandwidth enhancements provided by a bismuth-doped fibre amplifier (BDFA) operating in t...

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Bibliographic Details
Published inJournal of lightwave technology pp. 1 - 6
Main Authors Elson, Daniel J., Beppu, Shohei, Inoue, Ayumi, Soma, Daiki, Nagashima, Takuji, Mikhailov, Vitaly, Luo, Jiawei, Takasaka, Shigehiro, Inniss, Daryl, Yoshikane, Noboru, Tsuritani, Takehiro, Hayashi, Tetsuya, Wakayama, Yuta
Format Journal Article
LanguageEnglish
Published IEEE 23.10.2024
Subjects
Aggregates
Band-pass filters
Bandwidth
bismuth doped fibre amplifier (BDFA)
coherent dense wavelength division multiplexing
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Multicore processing
O-band
Optical fibers
Optical fibre communication
Signal to noise ratio
Wavelength division multiplexing
Wavelength measurement
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Summary:The rising demand for high transmission bandwidths in optical fibres for short-distance applications can be addressed by increasing the number of cores. Higher core densities in the fibres can be paired with the bandwidth enhancements provided by a bismuth-doped fibre amplifier (BDFA) operating in the O-band due to the lower intercore-crosstalk. In this study, we showcase an ultrawide O-band coherent transmission using a 12-core fibre with a standard 250-μm coating diameter. By using bidirectional transmission, inter-core crosstalk was effectively reduced to below −45 dB across a distance of 31.7 km (including multi-core connectors). The total aggregate bandwidth achieved was 115.2 THz, while retaining the conventional coating diameter, confirming the fibre's suitability for space-constrained environments
ISSN:0733-8724
1558-2213
DOI:10.1109/JLT.2024.3486339