实心光子带隙限制光纤泄漏损耗的研究

Leakage Loss of Solid Core Photonic Band Gap Fibers

芯区向下掺杂的实心蜂窝形光子晶体光纤可以通过光子带隙限制(PBG)导光,本文采用多极方法研究了这种实心PBG光子晶体光纤的泄漏损耗,研究表明在气孔直径与气孔周期的比为0.8时,仅需84个气孔,就能使这种实心PBG光子晶体光纤的泄漏损耗降低到10-2dB/km.本文的模拟结果可用于实心PBG光子晶体光纤的实际应用.

Down-doped solid core in honeycomb fibers can guide light by PBG effects, and its leakage losses have been analyzed by multipole method. It is confirmed that its leakage loss can be reduced to a level of 10-5 dB/m by only eighty-four air holes, with the hole diameter to pitch ratio of 0. 8. These simulations pave the way for the practicality of solid-core PBG fibers.