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In this paper we present real-time transmission performances up to 25 Gbit/s for optical access network. Our solution is based at transceiver side on pre-coded NRZ and electrical duo-binary modulations using limited electrical bandwidth DML in C and O band. At the receiver side, an electrical duo-binary receiver based on an 8 GHz APD photodiode combined with an online duo-binary to binary converter...
The use of Ethernet in the fronthaul permits convergence and exploitation of statistical multiplexing gains of the new interfaces, but minimum latency and latency variation requirements may become challenging. The techniques proposed to meet these challenges are summarized.
Using Ethernet in the fronthaul can deliver the statistical multiplexing gains offered by the new functional splits proposed for the radio access network, but latency and delay variations are challenges that must be overcome.
The operating principles of a self-seeded cavity are explained, and its main characteristics are described. Some practical implementation cases are also discussed.
We investigate on NGPON2 introduction effects in a coexisting PON topology. Simple optical power measurements permit to demonstrate that stimulated Raman scattering brings up to 3.9dB extra-losses on GPON. No other significant impairments were observed.
A 1×N single-mode splitter made of (N-1) 2×2 couplers is simultaneously a low-loss N → 1 optical combiner when unused 2×2 coupler ports route to a mode-coupling receiver. A PIC-based SFP transceiver module providing four class-B+ GPON OLT ports is thus realized.
A DWDM self-seeded source achieves transmission in the O-band up to 90km SSMF at 2.5Gbps. Moreover, a “face-to-face” self-seeded architecture permits to realize transmissions at 2.5Gbps with extra-long optical cavities reaching 70km of SSMF.
In this paper, we experimentally demonstrated a self-seeded wavelength-division-multiplexed passive-optical-network (WDM-PON) based on a high polarisation dependent gain reflective-semiconductor-optical-amplifier (RSOA). The experimental results show a possibility of implementing a WDM-PON with 16 channels of 100 GHz channel-spacing at 2.5 Gbit/s for a reach of 60 km. Considering FEC error-free transmission...
We propose a passive architecture mixing G-PON and VDSL2 technologies. We evaluate a single-user per port FTTdp prototype providing up to 100Mbit/s bidirectional bit rate per customer over 100m from the distribution point.
This paper describes the technical aspects of optical access solutions for mobile fronthaul application. The mobile context and main constraints of fronthaul signals are presented. The need for a demarcation point between the Mobile operator and the Fiber provider is introduced. The optical solution to achieve such a network is discussed. A WDM network with passive monitoring at the antenna site and...
We demonstrate experimentally a downstream capacity of 39Gbps based on FDM PON architecture using a new resources allocation algorithm with 11.5GHz electrical bandwidth.
A new generation of low cost G-PON OEO Reach Extender (RE) based on a 1:16 electrical splitting is demonstrated. It gives the opportunity to cover total optical budget between Central Office and home equipments up to 58dB. This RE can typically accept 8 ONUs per access port and is compliant with 128 ONUs manageable by one G-PON interface.
DWDM sources based on self seeded-RSOAs (SFP packaged) are experimented to bring easier usage in metropolitan networks. An optical budget of 26.5dB is realized with 50km of fiber and is further extended up to 60dB and 120km with an EDFA.
An external cavity laser is demonstrated with a RSOA at ONU and a mirror at the RN which can be 5km away. A record transmission of 10Gbits/s is shown and compared with performance at 1.25, 2.5, 5Gbit/s.
We experimentally investigate a cost-effective upstream transmitter for WDM PON using external cavity laser based on reflective semiconductor optical amplifier. The laser can be directly modulated and shows good performance at 1.25 and 2.5 Gb/s.
We demonstrate a high throughput multiformat Home Area Network supporting simultaneously on a unique optical infrastructure Gigabit Ethernet, terrestrial TV and 60GHz wireless connectivity. Hybrid electrical/optical multiplexing is used to maintain system low cost.
This paper presents for the first time the network architecture and the multiple-wavelength operation of a novel SOA-based PON extender. In 10-Gbit/s four-wavelength 100-km configuration, the total optical budget for each wavelength is 58 dB.
Reach Extenders based on Semiconductor Optical Amplifiers are experimented on a commercial prototype XGPON1 system. Bidirectional performances are evaluated and improved using a novel SOA operation. Up to 50dB of optical budget is obtained.
Splits >1000 are shown to be feasible for PONs by inserting an intermediate amplifier that is pumped by the ASE of SOA-based ONUs. Full-duplex 10Gb/s burst-mode transmission is demonstrated over a 39.5dB loss budget.
The presented ??Scalable Advanced Ring-based passive Dense Access Network Architecture?? transparently integrates WDM metro and PON access technologies, implementing ring protection, 100 Km reach and up to 1024 users served at 10 Gbps, with passive highly-shared infrastructure.
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