a single array FBG-based Optical Arbitrary Waveform Generation(OAWG)system is proposed
which consists of two parts:optical frequency combs generation and pulse shaping.The former is obtained by compressing a dual wavelength beat light using the Self-Phase Modulation(SPM)effect and the latter composed of FBG array
polarization controllers(PC)
Fiber Stretchers(FS)and a polarizer.The polarization states of the spectral lines at different wavelengths are different after passing through different number of PC and the amplitude of each line attenuates to a different extent after passing through the polarizer.The phase controllers adjust the phase of each spectral line by manipulating the length of the fiber.Using this system in experiments and simulation
we obtain waveforms with a frequency of 125 GHz similar to triangular and Gaussian waves.