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We investigate Nyquist spectral shaping using two-channel-interleaved DAC with zero-order holding for Nyquist-WDM 64QAM systems, which requires FIR filter with 57 taps, bandwidth of 0.4–0.6 times of the symbol rate, and DAC resolution >7 bits.
In this paper, we examine the integration potential and explore the design space of low power thermal reliable on-chip interconnect synthesis featuring nanophotonics Wavelength Division Multiplexing (WDM). With the recent advancements, it is foreseen that nanophotonics holds the promise to be employed for future on-chip data signalling due to its unique power efficiency, signal delay and huge multiplexing...
We compared EDC and FEC for dispersion slope compensation in a 24 times 10-Gb/s 7800 km WDM system. The simulation results show FEC has better performance at lower dispersion and EDC is better for large accumulated dispersion.
We demonstrate averaged-DOP monitoring of WDM channels for simultaneous PMD compensation. We achieve a significant power penalty reduction > 10 dB using this scheme. The 2%-worst-case compensated performance of averaged-BER is improved by two orders of magnitude.
We demonstrate tunable dispersion compensation in a 4times40-Gb/s system using sampled NC-FBGs with negligible errors from dispersion slope. The tuning ranges are 400 ps/nm for a single FBG and 600 ps/nm for a twin cascaded-inverse FBG configuration
We demonstrate tunable dispersion slope compensation for 40-Gb/s WDM systems using two inverse 3rd-order chirped gratings. The inherent errors in a single grating are eliminated. The slope range is -20 to +20 ps/nm2over a 5-nm bandwidth.
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