微结构光子晶体光纤中的TE模传输

TE Mode transmission of microstructure photonic crystal fiber

通过光子能带带隙和传输模式的数值模拟分析,研究了空芯和实芯微结构光子晶体光纤中,横电模TE作为基模传输的可能性,得出了TE模作为基模传输的基本条件为:只有当光纤包层第二禁带部分落在纤芯折射率分界线以上时,才能保证将光束缚在纤芯中传输,同时其传输的基模才是横电模TE;若在包层第一禁带,其传输的将是混合模HE11。

Based on energy band gap and transmission mode simulation in hollow core and solid core microstructure photonic crystal fibers,the possibility of transverse electric mode TE as fundamental mode is analyzed.It is shown that the TE mode can propagate as fundamental mode in the microstructure photonic crystal fibers if the second energy band gap of the periodic cladding falls partially into the region above the refractive index line of the core,while the transmission mode is hybrid HE11 in the first energy band gap.