利用一种简单的信号变换技术，将输出脉冲的瞬时波形映射成整形器或编码器的光谱响应，从而通过线性啁啾光纤布拉格光栅的切趾设计，将变换限高斯超短光脉冲整形为方型或三角型脉冲。为了证实该方法对光脉冲串编码的有效性，产生了具有1011码字的非归零和归零脉冲码。

A simplified signal-transform technique is utilized to map the output pulse temporal waveform into the spectral response of the shaper or coder. By designing the apodization profile of linearly chirped-fiber-Bragg-grating, a transform-limit Gaussian ultrashort optical pulse is shaped into a rectangular or triangular temporal output waveform. In addition, in order to demonstrate the feasibility for coding a train of optical pulses, non-return-zero(NRZ) or return-zero (RZ) pulse with 1011 codes are generated.