The modal cutoff properties and exciting conditions of higher order resonant modes for Ge-doped photonic crystal fiber Bragg grating(PCFBG) are investigated using beam propagation method(BPM).
采用光束传播法研究了实心掺锗光子晶体光纤布拉格光栅（PCFBG）的模式截止特性。
The modal cutoff properties and exciting conditions of higher order resonant modes for Ge-doped photonic crystal fiber Bragg grating(PCFBG) are investigated using beam propagation method(BPM).
采用光束传播法研究了实心掺锗光子晶体光纤布拉格光栅（PCFBG）的模式截止特性。
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