Demonstration of SOA-assisted Open Metro-Access Infrastructure for Heterogeneous Services

Schmuck, H.; Bonk, R.; Haslach, Christoph; Kuebart, W.; Karnick, D.; Meyer, J.; Poehlmann, W.; Fritzsche, D.; Weis, Erik; Becker, J.; Freude, W.; Pfeiffer, Thomas

doi:10.1049/cp.2013.1493

Cited by 4 publications

(6 citation statements)

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“…Semiconductor optical amplifiers (SOA) for linear amplification of optical fields have gained interest as in-line amplifiers in optical communication networks [1][2][3][4]. For this purpose they are designed to have large saturation powers and a moderate gain.…”

Section: Introductionmentioning

confidence: 99%

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Amplification of advanced modulation formats with a semiconductor optical amplifier cascade

Koenig¹,

Bonk²,

Schmuck³

et al. 2014

Opt. Express

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The convergence of optical metro networks and access networks extends the area of network coverage, and therefore requires the use of optical amplifiers. For this purpose, semiconductor optical amplifiers (SOA) would be attractive, because they are broadband, can be centered between 1250 nm and 1600 nm, and because they are cheap in production and operation. We show that signals encoded with advanced modulation formats such as BPSK, QPSK, 8PSK, and 16QAM can be amplified by a cascade of at least four SOAs. This enables high-capacity paths with a capacity in the order of Tbit/s for converged metro-access networks.

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Section: Introductionmentioning

confidence: 99%

“…In the near future, optical metro networks and access networks will converge more and more, i.e., both the metro network infrastructure and the last mile infrastructure merge to one metro-access infrastructure [2,10]. This converged metro-access network approach offers a large fiber-based capacity in a wide area.…”

Section: Introductionmentioning

confidence: 99%

Amplification of advanced modulation formats with a semiconductor optical amplifier cascade

Koenig¹,

Bonk²,

Schmuck³

et al. 2014

Opt. Express

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“…Manifold researches have shown their role in optical communication networks. Schmuck et al [10] presented SOA performance in open metro-access to create a transparent and reconfigurable optical ring network; in [11], they reported the importance of SOA efficiency in PON-applications as a booster and pre-amplifier. Ramírez et al [12] described the essential role of SOA to extend the link power budget in short reach networks in an 8 Â 50 Gb/s WDM system.…”

Section: Introductionmentioning

confidence: 99%

SOA Model and Design Guidelines in Lossless Photonic Subsystem

Goki¹,

Tufano²,

Cavaliere³

et al. 2022

New Advances in Semiconductors

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We propose a new practical analytical model to calculate the performance of amplitude-modulated systems, including semiconductor optical amplifiers (SOA). Lower and upper-performance bounds are given in terms of signal quality factor (Q) concerning the input signal pattern. The target is to provide a design tool for gain elements included in photonic integrated circuits (PIC) to compensate for their insertion loss. This subject is a critical issue, for example, in the arrays of optical transmitters with silicon photonics modulators used for interconnection applications. Due to implementation limitations, the design of an SOA embedded in a PIC is considerably different with respect to the use of SOAs as line amplifiers in optical networks. SOA amplified spontaneous emission (ASE) and gain saturation effects have been included in the model, together with the input signal extinction ratio and the receiver electrical filter. Each degradation effect provides its own contribution to the signal integrity in terms of signal-to-noise ratio (SNR) or inter-symbol interference (ISI). The model shows that the SOA operation at low extinction ratios, typical in optical interconnect applications, is substantially different from the operation at higher extinction ratios used in transport networks. The model is validated through numerical simulations and experiments. Finally, two examples are provided for dimensioning a PIC system and optimizing the SOA parameters.

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“…This paper focuses on the case of Coherent Optical OFDM (CO-OFDM) and particularly on a scenario including semiconductor optical amplifiers (SOA). This scenario has been investigated in recent literature [1,2] and is appealing because of the SOA's large optical bandwidth, integration capability and reduced cost. However, SOAs are also known to exhibit nonlinear effects, resulting from their fast gain dynamics.…”

Section: Introductionmentioning

confidence: 99%

Very low‐complexity filter lookup‐table design with non‐uniform spacing for SOA linearisation

Younes

Telescu

Azou

et al. 2020

IET Optoelectronics

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Nonlinearities introduced by power amplifiers in communication systems have been a subject of interest for industry and academia for a long time. On one hand the search for increased range intrinsically incites operators to boost input power. On the other hand this leads to stronger nonlinear phenomena in amplifiers which in turn increase the bit error rate. The situation led to the emergence of digital predistortion algorithms that compensate the power-amplifier's nonlinearities and improve the overall performance of the link. A rich corpus of literature exists on this topic but it mainly addresses wireless microwave networks. The case of digital predistortion specifically tailored for optical communications is much less explored. This paper focuses on predistortion via filter-lookup-tables and tackles the issue of non-uniform spacing. The work is mainly aimed at CO-OFDM systems including low-cost semiconductor optical amplifiers.

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Demonstration of SOA-assisted Open Metro-Access Infrastructure for Heterogeneous Services

Cited by 4 publications

References 0 publications

Amplification of advanced modulation formats with a semiconductor optical amplifier cascade

Amplification of advanced modulation formats with a semiconductor optical amplifier cascade

SOA Model and Design Guidelines in Lossless Photonic Subsystem

Very low‐complexity filter lookup‐table design with non‐uniform spacing for SOA linearisation

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