Novel design of highly nonlinear photonic crystal fibers with flattened dispersion

Novel highly nonlinear photonic crystal fibers（HN-PCFs） with flattened dispersion are proposed by omitting 19 air holes as the fiber core.The simulation results show that the high nonlinearity and the flattened dispersion can be achieved simultaneously by employing only two types of air holes in the...

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Bibliographic Details
Published in:Optoelectronics letters 2012-09, Vol.8 (5), p.363-367
Main Authors: Wang, Wei, Liu, Zhao-lun, Han, Ying, Hou, Lan-tian
Format: Article
Language:English
Subjects:
Lasers
Optical Devices
Optics
Photonics
Physics
Physics and Astronomy
仿真结果
光子晶体光纤
平坦色散
气孔
纤维芯
色散平坦
设计
非线性
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Summary:Novel highly nonlinear photonic crystal fibers（HN-PCFs） with flattened dispersion are proposed by omitting 19 air holes as the fiber core.The simulation results show that the high nonlinearity and the flattened dispersion can be achieved simultaneously by employing only two types of air holes in the cladding.To reduce the confinement loss,the modified designs are presented.The confinement loss is below 0.1 dB/km at 1.55 μm,when seven layers of air-hole rings are introduced to the cladding.After modifying,the dispersion can change from-0.5 ps/（nm.km） to＋0.5 ps/（nm.km） in the range from 1.35 μm to 2.06 μm,and the effective mode area is as low as 2.27 μm 2 at 1.55 μm.
ISSN:1673-1905
1993-5013
DOI:10.1007/s11801-012-2240-7