Realization of single-moded broadband air-guiding photonic bandgap fibers
Realization of single-moded broadband air-guiding photonic bandgap fibers
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DOI：
10.1109/lpt.2006.879546
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发表时间：
2006-08
影响因子：
2.6
通讯作者：
T. Murao;K. Saitoh;M. Koshiba
中科院分区：
文献类型：
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作者：
T. Murao;K. Saitoh;M. Koshiba
在这封信中，我们提出了一种新型的空气引导光子带隙光纤，它在从1460 nm到1840 nm的宽波长范围内表现出有效的单模操作和低限制损耗。对于几个现实的结构参数，色散的波长依赖性以及限制损耗特性的研究，通过基于有限元法的全矢量模式求解器。特别地，我们优化了结构，使其在1460 ~ 1840 nm范围内有效地单模工作，相应的基空气导模的限制损耗为8.8 × 10 -5 dB/km，而对于十环结构，高阶模的限制损耗提高了43 dB/m
In this letter, we propose a novel type of air-guiding photonic bandgap fiber, which exhibits an effectively single-mode operation with a low confinement loss over a wide wavelength range, extended from 1460 to 1840 nm. For several realistic structural parameters, the wavelength dependence of the dispersion as well as the confinement loss properties are investigated through a full-vector modal solver based on the finite-element method. In particular, we optimize the structure so as to exhibit the following performance: effectively single-mode operation from 1460 to 1840 nm, with corresponding confinement loss of the fundamental air-guided mode of 8.8times10-5 dB/km, and enhancement of the confinement loss of the higher order mode of 43 dB/m for ten-ring structure