近零超平坦色散填充光子晶体光纤的温度特性

利用矢量光束传输法研究了温度对填充乙醇六边形折射率引导型光子晶体光纤色散、有效面积和非线性的影响。结果表明:温度对色散平坦区域内的色散影响比较大,而且温度越高,色散平坦区间变宽;在平坦区域的短波长范围,温度对色散的影响变化更大,曲线更平坦;温度在长波长比短波长处对光模场面积和非线性系数影响更大;在平坦区域某一波长处,随温度的增加,色散和非线性系数随着升高。研究结果为设计新型光通信和光传感器件提供了理论参考。

Temperature characteristic of liquid-filled photonic crystal fibers with nearly zero ultra-flattened dispersion

The effects of temperature on dispersion, mode effective area and nonlinearity of an ethanol-filled index-guiding hexagon photonic crystal fiber were investigated using the vectorial beam propagation method. The results indicate that temperature has a significant influence on dispersion at the wavelengths of flattened dispersion, the bandwidth of flattened dispersion increases with temperature increasing. At the short wavelengths of flattened dispersion, the temperature has greater influence on the dispersion and the dispersion becomes more flattened. The impact of temperature on the mode effective area and the nonlinearity is larger at long wavelengths than at short wavelengths of flattened dispersion. At a given wavelength of flattened dispersion, dispersion and nonlinearity increase with temperature increasing. The result provides theoretical reference for designing novel optical communication components or optical sensors.