Signal Processing Using Opto-Electronic Devices

Flexible Width Nyquist Pulse Based on a Single Mach-Zehnder Modulator

“…The spectra also show characteristic rectangular shape with a flatness of 0.09, 0.12, and 0.15 dB and a SMSR of 30.4, 11.2, and 23.9 dB for the 7, 8, and 9-line comb respectively. The quality of the optical comb obtained is dependent of the total RF power because a high driving signal generates higher orders side-bands and hence will distort the comb shape [7]. On the contrary, a low RF power signal results in lower pulse power at the optical output.…”