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据我们所知,本文第一个提出并观察到光纤中存在新的磁-光效应.以前人们在平面波导的TM模中发现过垂直磁场内存在非互易相移,最近我们在可传输类TM模的不对称纤芯的光纤(如纤芯一侧掺钬的特殊光纤)中也发现这种现象.提出了单偏振和偏振无关的新颖的全光纤隔离器,这种隔离器是基于在马赫-曾德干涉仪中采用这些特殊光纤.该效应还可用于环行器和萨格奈克效应光纤陀螺仪.
To the best of our knowledge, this paper first presents and observes the existence of a new magneto-optic effect in optical fibers. Previously, it was found that there exists a non-reciprocal phase shift in a perpendicular magnetic field in the TM mode of a planar waveguide. Recently, This phenomenon is also observed in TM-mode asymmetric fiber cores (eg, a holmium-doped fiber on the core side) A novel all-optical fiber isolator based on mono-polarization and polarization-independent is proposed, These special fibers are used in the Mach-Zehnder interferometer, which can also be used in circulators and Sagnac fiber optic gyros.