光学学报, 2004, 24 (9): 1193, 网络出版: 2006-06-12  

有中心缺陷孔的椭圆孔光子晶体光纤传输特性研究

Transmission Properties of Elliptical-Hole Photonic Crystal Fiber with a Central Defect Hole in the Core Region
作者单位
北京交通大学光波所, 北京 100044
摘要
基于超格子构造法,采用全矢量模型研究了具有中心缺陷孔的椭圆光子晶体光纤的传输特性,着重讨论了中心缺陷孔对光纤中基模的模场分布、双折射特性和色散特性的影响。研究表明
Abstract
Based on the supercell overlapping method developed before by authors, the full vector is adopted to model transmission properties of elliptical-hole photonic crystal fiber (EHPCF) with a central smaller elliptical-hole core. It is concentrated on the influence of the smaller central elliptical hole on modal field, modal birefringence and dispersion. It was found that this EHPCF has a larger birefringence than the solid core EHPCF does because of the introduction of the smaller central hole. The transmission properties strongly depend on wavelength and the structure parameter of the EHPCF. The birefringence will increase due to an increase in the wavelength and the central smaller elliptical-hole core. The magnitude of birefringence can attain the level of 10-3. The broadband flat dispersion or anomalous dispersion can be obtained through changing the structure parameter of this EHPCF. The numerical results show that there is 400 nm flat dispersion region near the wavelength 1.55 μm in this EHPCF with the central small holes dc=0.4D.

娄淑琴, 王智, 任国斌, 简水生. 有中心缺陷孔的椭圆孔光子晶体光纤传输特性研究[J]. 光学学报, 2004, 24(9): 1193. 娄淑琴, 王智, 任国斌, 简水生. Transmission Properties of Elliptical-Hole Photonic Crystal Fiber with a Central Defect Hole in the Core Region[J]. Acta Optica Sinica, 2004, 24(9): 1193.

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