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A 100% reach extension in a coherent Wavelength Division Multiplexing link is demonstrated relying on transmitter-side full-field Digital Back-Propagation and frequency referenced carriers. Transmission reach is extended from 1445 km to 2890 km for a 4-channel 16 GBaud 16-QAM system.
We demonstrate successful field trial dual-carrier 400G undersea transmission using 60-GBaud PDM-QPSK modulation format based on digital faster-than-Nyquist shaping on the transmitter side DSP jointed with receiver SOFTN and 20% SD-FEC decoding.
In this paper, we propose and investigate a ring-based wavelength-division-multiplexing passive optical network (WDM-PON) providing both Rayleigh backscattering (RB) noise mitigation and fiber-fault protection. The proposed ring-based WDM-PON has a dual-ring architecture to protect and restore any fiber fault. Besides, the ring architecture also can mitigate the RB beat noise, since the RB and the...
We demonstrate multi-failure restoration in optical layer by using an eleven-node multi- vendor WSON test-bed. Automatic restoration is achieved by deploying colorless and directionless optical switching equipments with WSON-enabled control plane.
We demonstrate highly resilient wavelength path recovery within 2.0 seconds from each of triple failures, and 2.0 seconds from simultaneous failures. It is achieved, at first time, by interoperable dynamic wavelength path control in multi-vendor optical WDM networks.
Semiconductor optical amplifiers (SOAs) offer cost effective components for deployment in next generation passive optical networks (PONs). This paper summarises the potential for SOAs in future PON evolutions.
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