1 引言 微结构光纤(MOF),也叫光子晶体光纤,最近在纤维光学、非线性光学、原子光学、高精度光频测量、生物医学光学和光学数据传输等领域的研究人员中间,引起极大关注。这些光纤(一般是全硅光纤)的包层区在纵向分布有大量气孔(确切地说是气线)。在芯、包层和气孔区之间的折射率不同,这 1 Introduction MOF, also known as photonic crystal fiber, has recently led to great research among researchers in the fields of fiber optics, non-linear optics, atomic optics, high-precision optical frequency measurement, biomedical optics and optical data transmission attention. The cladding regions of these fibers (typically all-silica) have a large number of pores (exactly the gas lines) in the longitudinal direction. The difference in refractive index between the core, cladding and stoma zone, this