Sl. Zhang et al., ASSESSMENT OF THE NONLINEAR EFFECTS OF A MACH-ZEHNDER MODULATOR FOR ANALOG FIBER-RADIO SYSTEMS, International journal of optoelectronics, 10(6), 1995, pp. 461-465
The nonlinear effects of a Mach-Zehnder modulator for analogue fibre-r
adio systems have been studied. Of different modulation schemes, 8-PSK
is more robust to the nonlinearity and an optimal modulating signal a
mplitude exists for 16-QAM and 64-QAM. Bias point shift of the modulat
or further degrades system performance.