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Optimum symbol-decision boundaries created using machine learning approaches such as support-vector machine (SVM) can enhance system performance in the presence of nonlinear signal distortion. However, they fail if the received training signals for boundary creation include cycle slips induced by laser phase noise. In this paper, we propose a novel decision-boundary generation algorithm that is tolerant...
We demonstrate novel large-scale and cost-effective ROADM architecture exploiting the subsystem-modular express switches and tailored transponder banks for add/drop functionality. Simulations show that the proposed ROADM offers virtual-C/D/C performance. Good transmission characteristics are experimentally confirmed.
We develop an ultra-compact 8x8 waveband cross-connect prototype which consists of eight optical couplers and eight 1×8 waveband selective switch modules that are monolithically integrated onto PLC chips. Experiments verify its transmission performance.
We propose a compact hierarchical optical cross-connect architecture with modular growth capability utilizing newly developed waveband selective switches with dedicated waveband drop ports for grooming. 10-degree HOXC prototype systems are developed and their feasibility verified.
This paper investigates the performances of recently developed ultra-compact waveband cross-connect modules that will play a key role in the creation of hierarchical optical path networks. We confirm negligible coherent crosstalk effects and good cascadability.
We demonstrate a compact waveband cross-connect switch module that will be utilized for creating cost-effective multi-degree optical cross-connect nodes. Its measured performance confirms that it can be applied to metro-edge/metro-access networking in the future.
An efficient ROADM-ring connecting node architecture is proposed that utilizes waveband routing and achieves small footprint and cost-effectiveness. The key component devices are implemented using PLC technologies and the system performance is experimentally verified.
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