报道一个简单而新颖的、能将均匀光栅改变为线性啁啾光栅的方法。此方法可对光纤光栅的啁啾度和中心波长进行独立调节。实验表明, 一长为10 cm 的均匀光栅其啁啾度可增加至0.5 nm /cm , 而中心波长独立可调量达0.7 nm 。利用这样的可调啁啾光栅在标准单模光纤(G652)中对一脉宽为25 ps的输入信号在1550 nm 窗口传输, 成功地实现100 km 的色散补偿 A simple and novel method of changing a uniform grating to a linear chirped grating is reported. This method allows independent tuning of the fiber grating’s chirp and center wavelength. Experiments show that a uniform grating length of 10 cm can increase the chirp to 0.5 nm / cm, while the center wavelength can be independently adjusted to 0.7 nm. Using such an adjustable chirped grating, a 25 ps input signal is transmitted over a 1550 nm window in a standard single-mode fiber (G652), successfully achieving dispersion compensation of 100 km