Fourier-transform pulse shaping using a single chirped fiber Bragg grating

A Fourier-transform pulse shaper using a single linearly chirped fiber Bragg grating (LCFBG) is proposed and investigated. The LCFBG in the system performs three functions: temporally stretching the input pulse, shaping the pulse spectrum, and compressing the spectrum-shaped pulse. The impulse response of the entire system is equal to the Fourier transform of grating reflection spectral function. By appropriately designing the grating reflection response, a temporal optical waveform in the sub-picosecond regime can be accurately synthesized.