论文部分内容阅读
在10 Gb/s光传输系统中进行了以光子晶体光纤(PCF)为非线性介质的全光开关实验研究。实验中高强度光脉冲经过非线性系数为普通常规光纤36倍的25 m长光子晶体光纤后,观察到了由于自相位调制效应(SPM)而导致的光谱展宽现象。实验进一步研究了基于这一效应的全光开关特性,并得到了很好的开关特性曲线。同时还发现这种全光开关具有全光波形整形和波长变换的功能,在实验中变换脉冲中心波长偏离入射脉冲波长4 nm。实验结果表明,这种具有高非线性系数的光子晶体光纤非常有利于器件的小型化和集成化。
In the 10 Gb / s optical transmission system, photonic crystal fiber (PCF) as a non-linear medium all-optical switch experimental study. In the experiment, the high-intensity optical pulses were observed after 25 m-length photonic crystal fibers with non-linear coefficients of 36 times those of conventional fibers. Spectral broadening due to self-phase modulation (SPM) was observed. The experiment also further studied the all-optical switching characteristics based on this effect, and obtained a good switching characteristic curve. Also found that all-optical switch with all-optical waveform shaping and wavelength conversion function, in the experiment shift the center wavelength of the pulse deviation from the incident pulse wavelength 4 nm. Experimental results show that this kind of photonic crystal fiber with high nonlinear coefficient is very conducive to the miniaturization and integration of the device.