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基于四波混频(FWM)效应,在色散平坦光子晶体光纤(PCF)中实现了全光波长变换。采用长度为30m、具有小的反常色散值的高非线性色散平坦PCF对10Gbit/s的信号进行了波长变换,当平均泵浦功率为26dBm时,在20nm转换带宽内得到了-19.5dB的转换效率;用具有小的正常色散值的高非线性色散平坦PCF替代原光纤,进行了实验与理论比较。研究结果表明:利用两种不同的光纤得到了几乎相同的转换效率和转换带宽。
Based on the four-wave mixing (FWM) effect, all-optical wavelength conversion is achieved in dispersion-flattened photonic crystal fibers (PCFs). A 10-Gbit / s signal was wavelength-converted using a highly nonlinear flattened dispersion PCF with a length of 30 m and a small anomalous dispersion value. When the average pump power was 26 dBm, a -19.5 dB conversion was achieved over a 20-nm conversion bandwidth Efficiency; replacing the optical fiber with a highly nonlinear dispersion-flattened PCF with a small normal dispersion value, experimental and theoretical comparison. The results show that almost the same conversion efficiency and conversion bandwidth are obtained with two different fibers.