Design and analysis of a dispersion flattened and highly nonlinear photonic crystal fiber with ultralow confinement loss.
Design and analysis of a dispersion flattened and highly nonlinear photonic crystal fiber with ultralow confinement loss.
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DOI：
10.1364/ao.49.000292
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发表时间：
2010-01
期刊：
影响因子：
1.9
通讯作者：
Yamiao Wang;Xia Zhang;X. Ren;Long Zheng;Xiaolong Liu;Yongqing Huang
中科院分区：
文献类型：
--
作者：
Yamiao Wang;Xia Zhang;X. Ren;Long Zheng;Xiaolong Liu;Yongqing Huang
提出了一种新颖而稳健的双同心结构光子晶体光纤的设计方案，该光纤具有色散平坦、高度非线性、限制损耗低等特点。所提议的光纤具有适度数量的设计参数。分析结果表明，该八环光子晶体光纤的非线性系数大于33W(-1)km(-1)，在1550 nm处的色散斜率为-7.828×10(-4)ps/nm(2)/km。同时获得了-1.380~+0.9860 ps/nm/Km的超平坦色散和10(-4)d B/Km的超低阶限幅损耗。对于实际制作，讨论了气孔直径的随机缺陷对色散和非线性的影响，以验证设计的稳健性。
We present a novel and robust design for a photonic crystal fiber with flattened dispersion, a highly nonlinear coefficient, and low confinement loss for its dual concentric core structure. The proposed fiber has a modest number of design parameters. Analysis results show that the proposed eight-ring photonic crystal fiber is obtained with a nonlinear coefficient greater than 33 W(-1) km(-1) and a near-zero dispersion slope of -7.828 x 10(-4) ps/nm(2)/km at 1550 nm. Ultraflat dispersion with a value between -1.380 and +0.9860 ps/nm/km and a superlow-order confinement loss of 10(-4) dB/km are simultaneously obtained ranging from 1400 to 1625 nm. For practical fabrication, the influence of random imperfections of airhole diameters on dispersion and nonlinearity is discussed to verify the robustness of our design.