Novel design of highly nonlinear photonic crystal fibers with flattened dispersion

被引：0
作者：
Wei Wang
Zhao-lun Liu
Ying Han
Lan-tian Hou
机构：
[1] Key Laboratory for Special Fiber and Fiber Sensor of Hebei Province, College of Information Science and Engineering, Yanshan University
[2] Key Laboratory of Meteorological Observation and Information Processing of Jiangsu Province, Nanjing University of Information Science and Technology
来源：
Optoelectronics Letters | 2012年 / 8卷 / 5期
关键词：
Dispersion Curve; Photonic Crystal Fiber; High Nonlinearity; Supercontinuum Generation; Confinement Loss;
D O I：
10.1007/s11801-012-2240-7
中图分类号：
学科分类号：
摘要：
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. © 2012 Tianjin University of Technology and Springer-Verlag Berlin Heidelberg.
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页码：363 / 367
页数：4
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