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基于Galerkin方法计算并设计了在 80 0nm处具有零色散的光子晶体光纤。在数值计算中采用了足够大的求解区域和足够多的基函数 ,从而提高了计算和设计精度。波长 80 0nm是广泛使用的钛宝石飞秒激光器的工作波长 ,因此 ,该光纤对于飞秒激光的应用具有重要意义。
Based on the Galerkin method, a photonic crystal fiber with zero dispersion at 80 0 nm was calculated and designed. In the numerical calculation, enough large solution area and enough basis functions are used, which improves the calculation and design precision. The wavelength of 80 0 nm is the working wavelength of the widely used Ti: sapphire femtosecond laser, therefore, this fiber is of great significance to the application of femtosecond laser.