Multiwavelength single sideband modulation for WDM radio-over-fiber systems using a fiber grating array tandem device

We demonstrate the generation of high-quality multiwavelength single sideband (SSB) signals for wavelength-division-multiplexing radio-over-fiber systems using a tandem of two identical arrays of fiber Bragg grating devices placed in a serial arrangement. SSB is confirmed by spectral measurements and also by the simultaneous cancellation of the radio-frequency fading effect in three different wavelengths. The results show a considerable improvement both in terms of insertion losses, carrier supression effect, and bandwith (extensible from the millimeter to the whole microwave band) over the previously reported configuration based on arrayed-waveguide grating devices.