Parameters Sensitivity Analysis of the Minimalist-designed Linearized Optical Frequency Discriminator for Microwave Photonics Link

We present a comprehensive parameters sensitivity analysis of the minimalist-design frequency discriminator, FD filter involving three parameters namely, (i) the back reflection coefficient “
$b$
”, (ii) mirror reflectance “
$a$
”, and (iii) the split-power ratio of the Y-combiner “
$r$
”. We demonstrated that the measured linearity (bandwidth utilization, BWU and Normalized Deviation, ND) are negatively impacted by the increase in parameters b and r, but can be compensated by decreasing the value of the mirror reflectivity “
$a$
”.