1,721,165 research outputs found
Performance Analysis of Coherent 222 Gbit/s NRZ PM-16QAM WDM Systems over Long-Haul Links
No full textA Closed-Form Nonlinearity Model for Forward-Raman-Amplified WDM Optical Links
Full text linkWe propose an accurate nonlinearity closed-form model (CFM) for forward Raman-amplified WDM links which enables fast system optimization. We show a detailed study of a single-span link SNR maximization and flattening. (C) 2021 The Author(s
Non-Linear Propagation Limits and Optimal Dispersion Map for 222 Gbit/s WDM Coherent PM-16QAM transmission
No full text111 Gbit/s coherent PM-QPSK on fiber links carrying 10 Gbit/s IMDD: guard-band and power unbalancing requirements to mitigate non-linear penalty
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Experimental Demonstration of Real-Time 400G Coherent Transmission over 300m OM3 MMF
Full text linkWe experimentally demonstrate real-time coherent transmission up to 400Gbps over 300m OM3 multimode fibers, showing resilience to connector offsets up to 3-6 μm and fiber mechanical shaking using rigorous TIA-455-203 procedures
Impact of ADC sampling speed and resolution on uncompensated long-haul 111-Gb/s WDM PM-QPSK systems
No full textPerformance limits of Nyquist-WDM and CO-OFDM in high-speed PM-QPSK systems
No full textWe compare by simulation the performance of two techniques for generating polarization-multiplexed quadrature phase-shift keying with a high spectral efficiency (SE). The first is based on coherent optical orthogonal frequency-division multiplexing (CO-OFDM). The second, which we call Nyquist wavelength-division multiplexing (N-WDM), is based on the use of optical pulses having an "almost" rectangular spectrum, with bandwidth ideally equal to the Baud-rate. We show that the two techniques have the same sensitivity and SE under idealized assumptions. However, we found that CO-OFDM requires a much larger receiver bandwidth and proportionally faster speed of the analog-to-digital converters. We also tested CO-OFDM and N-WDM over long-haul nonlinear links and found N-WDM to outperform CO-OFDM in this case, to
Maximum reach vs. transmission capacity for Terabit superchannels based on 27.75 GBaud PM-QPSK, PM-8QAM or PM-16QAM
No full textGuard-band for 111 Gbit/s coherent PM-QPSK channels on legacy fiber links carrying 10 Gbit/s IMDD channels
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