Bi-Directionally Amplified Extended Reach 40Gb/s CWDM-TDM PON with Burst-Mode Upstream Transmission

Iannone, P.P.; Reichmann, K.C.; Brinton, Christopher G.; Nakagawa, Junichi; Cusick, T.A.; Kimber, E.M.; Doerr, C.; Buhl, L.L.; Cappuzzo, M.; Chen, E. Y.; Gomez, L.; Johnson, J.E.; Kan'an, A.M.; Lentz, J.L.; Chang, Y.; Pálsdóttir, B.; Tokle, T.; Spiekman, L.H.

doi:10.1364/nfoec.2011.pdpd6

Cited by 16 publications

(4 citation statements)

References 1 publication

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“…The state-of-the art in this field is a hybrid 4 stacked PON (4x10G downstream and 4x10G upstream) [11]. DISCUS is evaluating a single carrier 40Gb/s downstream solution based on electrical duo-binary modulation of a high-power, external cavity laser, monolithically integrated with an electro-absorption modulator and booster semiconductor optical amplifier.…”

Section: Technology Evolutionmentioning

confidence: 99%

DISCUS: an end-to-end solution for ubiquitous broadband optical access

Ruffini

Wosinska²,

Achouche³

et al. 2014

IEEE Commun. Mag.

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Fibre-to-the-premises (FTTP) has promised to increase the capacity in telecommunications access networks for well over thirty years. While it is widely recognized that optical fibre based access networks will be a necessity in the short to medium term future, its large upfront cost and regulatory issues are pushing many operators to further postpone its deployment, while installing intermediate, unambitious solutions such as Fibre-to-the-cabinet (FTTC). Such high investment cost of both network access and core capacity upgrade often derives from poor planning strategies that do not consider the necessity to adequately modify the network architecture to fully exploit the cost benefit that a fibrecentric solution can bring.DISCUS is a European Framework 7 Integrated Project that, building on optical-centric solutions such as Long-reach passive optical access and flat optical core, aims to deliver a cost-effective architecture for ubiquitous broadband services. DISCUS analyses, designs and demonstrates end-toend architectures and technologies capable of saving cost and energy by reducing the number of electronic terminations in the network, and sharing the deployment costs among a larger number of users, compared to current fibre access systems. This paper describes the network architecture and the supporting technologies behind DISCUS, giving an overview of the concepts and methodologies that will be used to deliver our end-to-end network solution.

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Section: Technology Evolutionmentioning

confidence: 99%

DISCUS: an end-to-end solution for ubiquitous broadband optical access

Ruffini

Wosinska²,

Achouche³

et al. 2014

IEEE Commun. Mag.

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show abstract

“…Most of these have limited the optical distribution network (ODN) to exclusively use power splitters to offer maximum operational flexibility as it allows all users to access all wavelengths [7]- [9]. However, wavelength splitting allows larger total splitting ratios for a given link budget so the combination of wavelength and power splitting allows a larger total splitting ratio than power splitting alone [11]- [14]. These contributions focus on operational benefits of centralizing the switching equipment and assume the existence of a powered remote CO.…”

Section: Introductionmentioning

confidence: 99%

Long-Reach Wavelength-Routed TWDM PON: Technology and Deployment

Zhao

Yin

et al. 2019

J. Lightwave Technol.

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We present a long-reach wavelength-routed timewavelength division multiplexing (TWDM) passive optical network (PON) architecture (LRWR-PON) and its commercial implementation, which supports up to 768 users per fiber strand and up to 50-km transmission distance. The increased reach allows central offices to become more flexible and fewer in quantity, while the increased aggregation reduces the size and number of optical cables needed, enabling smaller trenches to be used. LRWR-PON also contains eight additional point-to-point wavelengths on each fiber to support wireless sites and/or high-speed dedicated bandwidth applications, greatly simplifying converged network designs. Multiple new optical components and modules have been developed to implement our novel architecture. These include a cyclic arrayed waveguide grating to passively aggregate and distribute access wavelengths in the field, an integrated optical amplifier and multiplexer combination device to aggregate optical line terminal (OLT) channels and extend the system reach, several dense wavelength division multiplexing OLT optics, and a colorless TWDM optical network terminal employing low-cost tunable burst-mode lasers. Our analysis shows the simplification of the civil construction enabled by LRWR-PON greatly outweighs the increased optical component complexity. To date, we have conducted a successful field trial with 606 real-life customers for more than 15 months and we have been rolling out LRWR-PON in Google Fiber markets for production services.

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“…Both long distance transmission and high splitting ratio result in high link loss therefore the loss budget is a key parameter for a long-reach PON. Even though electrical or optical repeaters in the remote node can improve the transmission distance and loss budget [8]- [10], truly passive reach is preferred in order to keep the "passive" characteristic of PON system. External modulation combined with coherent detection has been considered as a good solution for long reach and high loss budget [9], [10].…”

Section: Introductionmentioning

confidence: 99%

“…Even though electrical or optical repeaters in the remote node can improve the transmission distance and loss budget [8]- [10], truly passive reach is preferred in order to keep the "passive" characteristic of PON system. External modulation combined with coherent detection has been considered as a good solution for long reach and high loss budget [9], [10]. Using complex modulation format and coherent digital receiver in optical line terminal (OLT) and/or optical network unit (ONU), symmetric 10G-PON with loss budget up to 53 dB [11] and 51 dB [12] (considering the FEC limit BER of 3.8 × 10 −3 ) have been achieved.…”

Section: Introductionmentioning

confidence: 99%

Symmetric 40-Gb/s, 100-km Passive Reach TWDM-PON with 53-dB Loss Budget

Wei

et al. 2014

J. Lightwave Technol.

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A truly passive long-reach, symmetric 40-Gb/s time and wavelength division multiplexed passive optical network (TWDM-PON) with a high loss budget is demonstrated, using direct modulation and direct detection in both upstream and downstream directions. Thermally tuned directly modulated lasers (DMLs) are employed to serve as both upstream and downstream transmitters, not only owing to their low cost, but also, as a carrierless modulation method, where the signal generated by direct modulation is demonstrated to be more robust to high launch power induced fiber nonlinearities compared with external intensity modulation formats with strong carrier power. Therefore, DML is suitable for applying in TWDM-PON to achieve a high loss budget. Moreover, the frequency chirp induced dispersion of directlymodulated signal is managed thanks to the combination of optical spectral reshaping and dispersion supported transmission effects, which makes it possible for the directly-modulated signal to reach a distance of 100 km and still with a good quality. As a result, a system loss budget of 53 dB is achieved, supporting more than 1000 users with 100-km purely passive reach, which is the first demonstration of high loss budget, long reach TWDM-PONs to our best knowledge. Index Terms-Directly-modulated laser (DML), dispersion supported transmission (DST), long reach, loss budget, time and wavelength division multiplexed passive optical network (TWDM-PON).

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Bi-Directionally Amplified Extended Reach 40Gb/s CWDM-TDM PON with Burst-Mode Upstream Transmission

Cited by 16 publications

References 1 publication

DISCUS: an end-to-end solution for ubiquitous broadband optical access

DISCUS: an end-to-end solution for ubiquitous broadband optical access

Long-Reach Wavelength-Routed TWDM PON: Technology and Deployment

Symmetric 40-Gb/s, 100-km Passive Reach TWDM-PON with 53-dB Loss Budget

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