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Mode-spectrum matrix is introduced to describe the multi-dimensional resources in packet optical transport networks (POTN) with multi-mode fibers (MMF), based on which a novel shared backup path protection algorithm is proposed to optimize the allocation of optical resource during virtual link mapping (VLM) in packet optical transport networks.
112 Gb/s PDM-QPSK signal straight-line transmission over 3000 km G.652 ultra-low-loss fiber without Raman amplifiers and in-line dispersion compensation is experimentally demonstrated. 2.8 dB OSNR margin is achieved from coherent detection and DSP technology.
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