The variation rules of coupling-length with both wavelength and air holes have been found:for a given twin-core photonic fiber, coupling-length decreases with increasing wavelength;
分析了耦合长度随光波长、孔半径变化的一般规律；当双芯光子晶体光纤的结构一定时，耦合长度随波长增大而减小；
The variation rules of coupling-length with both wavelength and air holes have been found:for a given twin-core photonic fiber, coupling-length decreases with increasing wavelength;
分析了耦合长度随光波长、孔半径变化的一般规律；当双芯光子晶体光纤的结构一定时，耦合长度随波长增大而减小；
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