Multi-band direct-detection transmission over an ultrawide bandwidth hollow-core NANF
| Autor: | Hesham Sakr, David J. Richardson, Francesco Poletti, Periklis Petropoulos, Yang Hong, Natsupa Taengnoi, Kyle R. H. Bottrill, John R. Hayes, Jayanta K. Sahu, Yu Wang, Andrey A Umnikov, Naresh Kumar Thipparapu, Hyuntai Kim, Thomas D. Bradley, Gregory T. Jasion |
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| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Optical amplifier
Physics Optical fiber business.industry Amplifier 02 engineering and technology Multiplexing Atomic and Molecular Physics and Optics law.invention 020210 optoelectronics & photonics Transmission (telecommunications) law Modulation Wavelength-division multiplexing 0202 electrical engineering electronic engineering information engineering Optoelectronics business Phase modulation |
| Zdroj: | Journal of Lightwave Technology |
| Popis: | In this article, we report high-speed multi-band direct-detection (DD) transmission over a hollow-core nested antiresonant nodeless fiber (NANF). Thanks to the ultrawide bandwidth of the NANF, we demonstrate dual-band transmission across the O- and C-bands over a ∼1-km length of a hollow-core fiber for the first time. Eight wavelength-division multiplexed (WDM) channels were transmitted using 100-Gb/s/λ Nyquist 4-ary pulse-amplitude modulation (PAM4) signals, which to the best of our knowledge, is the highest aggregate capacity ever transmitted in a DD hollow-core fiber-based transmission system. Optical pre-amplification was adopted for signal reception in both bands, achieved using an in-house built bismuth-doped optical fibre amplifier (BDFA) and a commercial erbium-doped fiber amplifier (EDFA) in the O- and C-band, respectively. We further demonstrate beyond 100-Gb/s/λ adaptively-loaded discrete multitone (DMT) transmission over the S+C+L-bands using the same NANF, without the use of optical amplification. Our experiments show that apart from fiber loss, the use of the NANF did not introduce any additional transmission penalties. The demonstrated results validate the ultrawide bandwidth and excellent modal purity of the fabricated NANF, which allow beyond 100-Gb/s/λ penalty-free transmission over multiple bands, highlighting the potential of this fiber technology for high-speed short- to intermediate-reach applications. |
| Databáze: | OpenAIRE |
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