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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。
The effect of temperature on the dispersion, effective area and nonlinearity of hexagonal refractive index guided photonic crystal fiber filled with ethanol was investigated by using vector beam transmission method. The results show that the temperature has a great influence on the dispersion in the flat area, and the higher the temperature is, the wider the dispersion flat. In the short wavelength range of the flat area, the influence of the temperature on the dispersion is larger and the curve is flatter. The wavelength has greater influence on the area and the nonlinear coefficient of the optical mode field than the short wavelength. At a certain wavelength in the flat region, the chromatic dispersion and the nonlinear coefficient increase with the increase of the temperature. The results provide a theoretical reference for the design of new optical communications and optical sensing devices.