基于实芯光子带隙光纤的高能超连续谱激光光谱控制机理研究

项目名称： 基于实芯光子带隙光纤的高能超连续谱激光光谱控制机理研究

项目编号： No.11274385

项目类型： 面上项目

立项/批准年度： 2013

项目学科： 数理科学和化学

项目作者： 王泽锋

作者单位： 中国人民解放军国防科学技术大学

项目金额： 82万元

中文摘要： 光谱可控的超连续谱激光在军事、通信、医学等众多领域有着广泛的应用前景，但目前相关研究还很少。基于项目组前期研究的结果，本项目将实芯光子带隙光纤（Solid-core photonic bandgap fibers，SC-PBGFs）带隙可控、色散设计灵活、大模场等特点有机结合起来，创新性提出利用SC-PBGFs实现高能超连续谱激光光谱控制的技术方案。本项目重点开展SC-PBGFs中高能超连续谱产生与控制机理研究：（1）采用平面波展开法和全矢量有限元法建立SC-PBGFs光学性能的一般理论模型；（2）采用广义非线性薛定谔方程建立脉冲光在SC-PBGFs中传输的一般理论模型，重点研究高能传输过程；（3）设计并在合作单位拉制SC-PBGFs，测量其光学特性；（4）开展SC-PBGFs中高能超连续谱产生与控制的实验研究，验证和完善相关理论。本项目为现代光电对抗提供了一条简单有效的技术途径。

中文关键词： 超连续谱；光子晶体光纤；实芯光子带隙光纤；空芯光纤；光纤气体激光器

英文摘要： Supercontinuum of controllable spectrum can be widely applied in military, communications, medicine, and so on. But there are few of related papers presently. In this proposal, solid-core photonic bandgap fibers (SC-PBGFs) are used to generate controllable high power Supercontinuum according to our previous investigation results, which makes the best use of the good optical properties, including controllable photonic bandgap, convenient dispersion design, and large mode-field diameter. This proposal mainly contains the following research contents: (1) Giving the general theoretical mode of the optical properties of SC-PBGFs by the Plane Wave Method and the Full-vector Finite Element Method; (2) Investigating the transmission theories of optical pulses in SC-PBGFs by the Generalized Nonlinear Schr?dinger Equation; (3) Designing and manufacturing SC-PBGFs, and measuring the optical parameters; (4) Experimentally investigating the high power Supercontinuum generation and control in SC-PBGFs, which can be used to validate and improve the related theories. This proposal provides a simple and effective scheme of photoelectrical countermeasures.

英文关键词： supercontinuum；photonic crystal fibers；solid-core photonic bandgap fibers；hollow-core fibers；fiber gas lasers