可光场调控的纳米磁流体材料及相应的光控全光纤功能器件关键技术研究

项目名称： 可光场调控的纳米磁流体材料及相应的光控全光纤功能器件关键技术研究

项目编号： No.61475028

项目类型： 面上项目

立项/批准年度： 2015

项目学科： 无线电电子学、电信技术

项目作者： 邓明

作者单位： 重庆大学

项目金额： 86万元

中文摘要： 集光信号传输、处理与调控为一体的全光纤功能器件是全光网络的关键技术之一。近年来研究人员不断研制新材料、探索新机制和设计新结构来研制新型的全光纤功能器件，让其具有更强的信号调控能力，从而更好满足光网络对器件功能的要求。纳米磁流体是一种光学特性随外磁场变化的新型功能材料，申请者提出通过优化配置磁流体，再利用光纤微结构束缚纳米磁流体从而研究一类光控的全光纤功能器件，其核心思想是利用控制光去调控所配置磁流体的性能，从而实现对信号光的调控。因此本项目将首先研究不同粒径和形貌的纳米磁流体材料的优化配置方法，进而提高纳米颗粒的成链速度等影响光学性能的参数；在所研制材料的基础上，探索在尺度受限的光波导区域内纳米磁流体材料的光动力特性和光波作用下磁性颗粒的流动方向与聚集形式，最后研究光波导结构与磁流体的载入方式和光学调控特性。希望能为全光通信领域提供可供选择的光控可调谐全光纤功能器件。

中文关键词： 全光信号处理；光纤光学；纳米磁流体材料；光动力学；全光纤功能器件

英文摘要： All-fiber functional devices have become one of the key technologies to achieve all-optical network because they have the advantages of integrating the signal transmission,processing with controlling. In recent years, researchers continue to explore new materials, new principles, new methods and new ideas to develop new types of all-fiber photonic devices to meet the requirements of the all-optical network. The nano-magnetic fluid is a new type of functional material with tunable optical properties as the applied field strength changes. So, the applicant proposed to optimize the configuration of the magnetic fluid, and then to develope a class of light controllable all-fiber functional devices by effectively combining the micro/nano fiber structure and the physical effects of the magnetic fluid.The core idea is to use laser to control the characteristics of the magnetic fluid and further to adjust the signal light. Therefore,the nano- magnetic fluid material with different particle size and morphology will be firstly allocated and thereby improving the speed of nanoparticles into chains . On this basis, we will explore the photodynamic characteristics of the nano- magnetic fluid in a limited -scale optical fiber waveguide region, research the aggregation of magnetic particles in the form of an optical waveguide structure, and finally study the optical fiber waveguide structure,magnetic fluid loading method and the optical controllable properties.It is hoped that an alternative tunable all-fiber functional devices can be proposed for all-optical communications.

英文关键词： Optical signal processing;Optical fiber;Nano-magnetic fluid material;Photodynamics;Optical fiber funcational devices