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Spectrally Efficient Nyquist-WDM PDM-64QAM Signal Generation using Interleaved DAC with Zero-Order Holding

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Abstract

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.

© 2016 Optical Society of America

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