Design and analysis of novel highly nonlinear photonic crystal fibers with ultra-flattened chromatic dispersion
Design and analysis of novel highly nonlinear photonic crystal fibers with ultra-flattened chromatic dispersion
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DOI：
10.1016/j.optcom.2008.12.005
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发表时间：
2009-04
影响因子：
2.4
通讯作者：
F. Begum;Y. Namihira;S. M. Abdur Razzak;S. Kaijage;N. H. Hai;T. Kinjo;K. Miyagi;N. Zou
中科院分区：
文献类型：
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作者：
F. Begum;Y. Namihira;S. M. Abdur Razzak;S. Kaijage;N. H. Hai;T. Kinjo;K. Miyagi;N. Zou
本文描述了一种新型的高非线性光子晶体光纤（HN-PCF），它具有平坦的色散和低限制损耗。基于各向异性完全匹配层吸收边界条件的有限差分法对所提出的设计进行了模拟。实验结果表明，在1.55μm波长下，所设计的新型HN-PCF的非线性系数大于45 W − 1 km − 1，色散斜率为−0.009ps/（nm2.km）。数值模拟结果表明，在1.36-1.62μm波长范围内，可以获得0±0.65ps/（nm.km）的超平坦色散，在相同波长范围内，限制损耗小于10− 7 dB/m。所提出的HN-PCF的另一个优点是它具有适度数量的设计参数。
The present article describes novel highly nonlinear photonic crystal fibers (HN-PCFs) with flattened chromatic dispersion and low confinement losses. The proposed design has been simulated based on the finite-difference method with anisotropic perfectly matched layers absorbing boundary condition. It is proved that the design novel HN-PCFs is obtained a nonlinear coefficient greater than 45W−1km−1and low dispersion slope −0.009ps/(nm2.km) at 1.55μm wavelength. In addition, results from numerical simulation show that the ultra-flattened dispersion of 0±0.65ps/(nm.km) can be obtained in a 1.36–1.62μm wavelength range with confinement losses lower than 10−7dB/m in the same wavelength range. Another advantage of the proposed HN-PCFs is that it possessed modest number of design parameters.