基于光波时空二元性理论,研究了时间透镜和光脉冲在色散介质中传输的原理,提出了一种利用光脉冲频谱包络来传输光信号的方法:利用光脉冲的频谱包络在色散介质中保持不变的原理,在发射端用基于时间透镜的全光傅里叶逆变换器件将光脉冲的频谱包络转换到时域进行表示,从而得到新的传输符号;在接收端用基于时间透镜的全光傅里叶变换器件将原始光脉冲序列恢复。该传输系统可以消除色度色散、偏振模色散、时间抖动等线性畸变对光脉冲的影响。给出了全光傅里叶变换/逆变换器件的具体实现方法和10 Gb/s-200 km无预啁啾、无任何色散补偿的传输实验,验证了该方案的正确性与可行性,为高速光纤通信提供了一种新的方案。 Based on the theory of temporal and spatial duality of light wave, the principle of time lens and light pulse transmission in dispersive medium is studied. A method of transmitting optical signal by using light pulse spectrum envelope is proposed. By using the spectral envelope of light pulse in the dispersion medium Keep the same principle, at the transmitter using time-lens-based plenoptic inverse transform device to convert the spectral envelope of the optical pulse to the time domain representation, resulting in a new transmission symbol; the receiving end with a time-based lens The plenoptic Fourier transform device restores the original optical pulse train. The transmission system can eliminate the chromatic dispersion, polarization mode dispersion, time jitter and other linear distortion of the light pulse. The implementation method of all-optical Fourier transform / inverse transform device and the transmission experiment without pre-chirp in 10 Gb / s-200 km without any dispersion compensation are given, which proves the correctness and feasibility of the scheme High-speed fiber optic communication provides a new solution.