Construction of Environment far Assisting Design and Modeling of Photonic Crystal Fibers and Its Application to Design of Fiber-Based Optical Devices

光子晶体光纤辅助设计建模环境构建及其在光纤光学器件设计中的应用

基本信息

批准号：
15360178
负责人：
KOSHIBA Masanori
金额：
$ 4.86万
依托单位：
HOKKAIDO UNIVERSITY
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (B)
财政年份：
2003
资助国家：
日本
起止时间：
2003 至 2004
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-15360178/
关键词：
photonic crystal fiber holey fiber photonic band-gap fiber computer-aided-design finite element method

项目摘要

The results of this research are as follows :1.An analysis method based on a full-vectorial finite element method was developed for design and modeling of photonic crystal fibers, the single-mode wavelength range, chromatic dispersion, mode area, mode-field diameter, beam divergence, confinement loss, bending loss, splice loss, and polarization mode dispersion were investigated. A method of real-model simulation was also developed for characterizing transmission properties of fabricated fibers.2.In order to control the dispersion and the dispersion slope of holey fibers, a new controlling technique of chromatic dispersion was developed, and the relationship among the wavelength dispersion, confinement loss, and effective area was clarified. Fiber-based optical devices based on a multi-core holey fiber such as directional coupler, wavelength filter, and polarization splitter were newly constructed, and the fiber parameters such as lattice constant, hole diameter, and core separation were optimized.3.The dispersion and leakage properties for the recently reported low-loss photonic band-gap fiber were studied in detail and it was found that the surface modes have a strong impact on these properties. From our research results, it was confirmed that when surface modes are present it is very likely they strongly modify the dispersion, leakage loss, and scattering loss of the bare air-core modes.

这项研究的结果如下：1。开发了基于全矢量有限元方法的分析方法，用于设计和建模光子晶体纤维，单模波长范围，色散，模式区域，模式区域，模式场。研究了直径，梁发散，限制损失，弯曲损失，剪接损失和极化模式分散体。还开发了一种用于表征制造纤维的传输特性的方法。阐明了分散，禁闭损失和有效面积。新建了基于多核孔纤维的基于纤维的光学设备，例如定向耦合器，波长滤波器和极化分离器，并且优化了纤维参数，例如晶格常数，孔直径和核心分离。3。分散体详细研究了最近报道的低损坏光子带纤维的泄漏特性，发现表面模式对这些特性具有很强的影响。从我们的研究结果中，可以证实，当存在表面模式时，很可能会强烈修改裸机模式的分散体，泄漏损失和散射损失。