Performance Improvement of Optical Single Sideband Signal Using an Integrated Mach-Zehnder Modulator

A single sideband radio-over-fiber system with improved dynamic range incorporating a dual-electrode dual-parallel Mach–Zehnder modulator

“…A lot of work has been performed to eliminate the intermodulation distortion (IMD), which is the main nonlinear factor. Some research works of optic single sideband (OSSB) ROF systems based on MZM eliminate the second-order and high-order harmonic components, which suppresses the nonlinearity of the ROF system effectively but they do not analyze the effect of third-order intermodulation distortion (IMD3) on the system's nonlinearity [3][4][5][6]. There are also schemes proposed to suppress the IMD3 to improve the SFDR, but they are all aimed at double sideband (DSB) ROF [7][8][9][10][11].…”