Ultra-Wideband WDM Transmission in S-, C-, and L-Bands Using Signal Power Optimization Scheme

Hamaoka, Fukutaro; Nakamura, Masanori; Okamoto, Seiji; Minoguchi, Kyo; Sasai, Takeo; Matsushita, A.; Yamazaki, E.; Kisaka, Yoshiaki

doi:10.1109/jlt.2019.2894827

Cited by 124 publications

(42 citation statements)

References 21 publications

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“…For instance, while the O-band could carry short-reach traffic, e.g., ≤ 80 km, long-haul (LH) traffic could be transported on the better performing C-or L-bands. In this context, a first assessment on the MBT potentialities, performing an iterative power optimization scheme for C-, S-and L-band, has been proposed in [38], [39]. In [38], a 150 Tb/s capacity has been shown after 40 km by using S-, C-and L-bands.…”

Section: A Potentialitiesmentioning

confidence: 99%

Assessment on the Achievable Throughput of Multi-Band ITU-T G.652.D Fiber Transmission Systems

Ferrari

Napoli

Fischer

et al. 2020

J. Lightwave Technol.

226

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Fiber-optic multi-band transmission (MBT) aims at exploiting the low-loss spectral windows of single-mode fibers (SMFs) for data transport, expanding by ∼11× the available bandwidth of C-band line systems and by ∼5× C+L-band line systems'. MBT offers a high potential for cost-efficient throughput upgrades of optical networks, even in absence of available dark-fibers, as it utilizes more efficiently the existing infrastructures. This represents the main advantage compared to approaches such as multi-mode/-core fibers or spatial division multiplexing. Furthermore, the industrial trend is clear: the first commercial C+L-band systems are entering the market and research has moved toward the neighboring S-band. This article discusses the potential and challenges of MBT covering the ITU-T optical bands O → L. MBT performance is assessed by addressing the generalized SNR (GSNR) including both the linear and non-linear fiber propagation effects. Non-linear fiber propagation is taken into account by computing the generated non-linear interference by using the generalized Gaussian-noise (GGN) model, which takes into account the interaction of nonlinear fiber propagation with stimulated Raman scattering (SRS), and in general considers wavelength-dependent fiber parameters. For linear effects, we hypothesize typical components' figures and discussion on components' limitations, such as transceivers', amplifiers' and filters' are not part of this work. We focus on assessing the transmission throughput that is realistic to achieve by using feasible multi-band components without specific optimizations and implementation discussion. So, results are meant to address the potential throughput scaling by turningon excess fiber transmission bands. As transmission fiber, we focus exclusively on the ITU-T G.652.D, since it is the most widely deployed fiber type worldwide and the mostly suitable to multi-band transmission, thanks to its ultra-wide low-loss singlemode high-dispersion spectral region. Similar analyses could be This work was fundedby the H2020 Metro-Haul project, no. 761727; and by the European Union Horizon 2020 research and innovation program under the Marie Skłodowska-Curie ETN WON, grant agreements 814276.

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Section: A Potentialitiesmentioning

confidence: 99%

Assessment on the Achievable Throughput of Multi-Band ITU-T G.652.D Fiber Transmission Systems

Ferrari

Napoli

Fischer

et al. 2020

J. Lightwave Technol.

226

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“…An alternative approach that provides additional capacity to the optic network operators is the use of L-band (1565 nm to 1625 nm). The throughput obtained using both C and L bands is significantly larger than that obtained using C band only [2,3], and recently it was shown to exceed 100 Tb/s [4], reaching even 150 Tb/s when C, L, and S bands are used [5]. The L-band shares the main characteristics with the C-band, i.e.…”

Section: Introductionmentioning

confidence: 99%

Ultra-Wideband WDM Optical Network Optimization

Kozdrowski¹,

Żotkiewicz²,

Sujecki³

2019

Preprint

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Ultra-wideband wavelength division multiplexed networks enable operators to use more effectively the bandwidth offered by a single fiber pair and thus make significant savings, both in operational and capital expenditures. The main objective of this study is to minimize optical node resources, such as transponders, multiplexers and wavelength selective switches, needed to provide and maintain high quality of network services, in ultra-wideband wavelength division multiplexed networks, at low cost. A model based on integer programming is proposed, which includes a detailed description of optical network nodal resources. The developed optimization tools are used to study the ultra-wideband wavelength division multiplexed network performance when compared with the traditional C-band wavelength division multiplexed networks. The analysis is carried out for realistic networks of different dimensions and traffic demand sets.

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“…Extending the optical amplification bandwidth by upgrading optical repeaters, which typically consist of standard erbium-doped fiber amplifiers (EDFAs) with a 4-THz bandwidth, is attractive to increase the capacity at the deployed-fiber link. Transmission experiments involving the use of an optical bandwidth of over 10-THz have been conducted based on hybrid Raman/EDFAs [1,2], all-Raman amplification [3], and additional optical-band utilization such as S-, C-and L-bands [4][5][6]. A semiconductor optical amplifier with over-100-nm continuous bandwidth was developed and demonstrated as a discrete optical amplifier [7].…”

Section: Introductionmentioning

confidence: 99%

Wide-Band Inline-Amplified WDM Transmission Using PPLN-Based Optical Parametric Amplifier

Kobayashi

Shimizu

Nakamura

et al. 2021

J. Lightwave Technol.

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This paper proposes an optical parametric amplifier (OPA), as an inline-repeater, using a periodically-poled-LiNbO3 (PPLN) waveguide with over-10-THz amplification bandwidth, and also presents wide-band wavelength-division-multiplexing (WDM) inline-amplified transmission with the OPA. Our PPLNbased OPA is polarization-independent and has a spectrally efficient configuration by filtering phase-conjugated signals (idlers). We implemented our PPLN-based OPA with half its ideal configuration with an over-10-THz amplification bandwidth because of the limited number of PPLN waveguides. The implemented OPA had 5.125-THz amplification bandwidth, gain of beyond 15 dB, and noise figure of less than 5.1-dB. The gain excludes the 5.6-dB loss of an idler rejection filter employed in the transmission experiment so that the implemented OPA can compensate 9.5-dB link loss of transmission fibers and optical components. A 3 × 30.8-km inline-amplified transmission with 41channel 800-Gbps WDM signal in 125-GHz spacing was successfully demonstrated using our PPLN-based OPA as an inline-repeater. The results also indicate that the OPA's amplification bandwidth can potentially be extended to 10.25 THz.

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Ultra-Wideband WDM Transmission in S-, C-, and L-Bands Using Signal Power Optimization Scheme

Cited by 124 publications

References 21 publications

Assessment on the Achievable Throughput of Multi-Band ITU-T G.652.D Fiber Transmission Systems

Assessment on the Achievable Throughput of Multi-Band ITU-T G.652.D Fiber Transmission Systems

Ultra-Wideband WDM Optical Network Optimization

Wide-Band Inline-Amplified WDM Transmission Using PPLN-Based Optical Parametric Amplifier

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