Experimental Demonstration of In-Field 400G Coherent Metro-Access Convergence

Rizzelli, G.; Casasco, M.; Pagano, A.; Ferrero, V.; Gaudino, R.

doi:10.1364/ofc.2024.w1j.1

Optical Fiber Communication Conference (OFC) 2024 2024

DOI: 10.1364/ofc.2024.w1j.1

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Experimental Demonstration of In-Field 400G Coherent Metro-Access Convergence

G. Rizzelli,

M. Casasco,

A. Pagano

et al.

Abstract: We present an experimental demonstration and analytical scaling of optically amplified metro combined with PON access transmission over installed fibers, using coherent 50GBaud PM-16QAM and discuss the technical feasibility of future 400G metro-access convergence.

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Metro-Passive Optical Network Convergence: 400 Gbps Fully Coherent Transmission Using Pre-Commercial Transceivers

Casasco,

Rizzelli,

Pagano

et al. 2024

Electronics

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The capacity of passive optical networks (PONs) is continuously increasing, and it has been standardized up to 50 Gbit/s. The two main standardization organizations, IEEE and ITU-T, are actively working on the next-generation PON, which appears to be a 100G-PON still based on intensity modulation. Even though direct detection would be preferred for its cost and simplicity, the choice of coherent detection seems inevitable when the bit rate reaches 200–400 Gbit/s, specifically to guarantee the optical power budget requirement of an access network. The introduction of coherent systems in the PON scenario, allowing high-power-budget performances, should encouragetelecom operators to merge the metro and access networks into a single domain. This paper analyzes the mentioned metro + PON convergence scenario with experimental results focusing on a 400 Gbit/s fully coherent transmission (50 GBaud PM-16QAM). We characterize three different transceivers, two of which are pre-commercials. We perform experimental demonstrations, with real urban fiber and laboratory set ups, of the metro–access convergence network in terms of the minimum OSNR value of the metro path, producing an acceptable optical power budget within the access network. Our work demonstrates feasibility of merging the metro–access network by using currently coherent optical transceivers for PON applications.

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Metro-Passive Optical Network Convergence: 400 Gbps Fully Coherent Transmission Using Pre-Commercial Transceivers

Casasco,

Rizzelli,

Pagano

et al. 2024

Electronics

View full text Add to dashboard Cite

show abstract

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Experimental Demonstration of In-Field 400G Coherent Metro-Access Convergence

Abstract: We present an experimental demonstration and analytical scaling of optically amplified metro combined with PON access transmission over installed fibers, using coherent 50GBaud PM-16QAM and discuss the technical feasibility of future 400G metro-access convergence.

Cited by 1 publication

References 5 publications

Metro-Passive Optical Network Convergence: 400 Gbps Fully Coherent Transmission Using Pre-Commercial Transceivers

Metro-Passive Optical Network Convergence: 400 Gbps Fully Coherent Transmission Using Pre-Commercial Transceivers

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