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. 2015 Sep 1;5:13649. doi: 10.1038/srep13649

Figure 7. Optical spectra and eye-diagram of Nyquist signals.

Figure 7

(a,b) are the optical spectrum of 75 and 125-GBaud all optical Nyquist signals; (c,d) are the eye-diagrams of 75 and 125-GBaud all optical Nyquist QPSK signals. The resolution in (a,b) is 0.02-nm.