基于单芯—#29615;形波导光纤的消逝场传感机理研究

项目名称： 基于单芯—#29615;形波导光纤的消逝场传感机理研究

项目编号： No.60807032

项目类型： 青年科学基金项目

立项/批准年度： 2009

项目学科： 金属学与金属工艺

项目作者： 杨军

作者单位： 哈尔滨工程大学

项目金额： 24万元

中文摘要： 信息、生物、新材料将是21世纪前30年发展最快、最热门的三大领域，本项目提出发展特种单芯-环形波导传感光纤，利用光学干涉测量原理和传感光纤消逝场实现对折射率和生物化学量传感，即是由上述三个学科交叉而成。项目完成了单芯-环形光纤波导的结构设计，制备了3种用于消逝场传感的特种环形光纤；建立了锥体形状下单芯与环形波导的功率耦合模型，基于焊接-融拉方法完成了环形波导光纤的模式激励与功率耦合试验，实现单芯-环形波导光纤与普通单芯单模光纤的连接；构建了Michelson、Mach-Zehnder单纤集成干涉仪，开展集成干涉仪折射率传感机理的研究，完成了不同消逝场分布与不同干涉仪臂长时，折射率测量灵敏度及其影响研究。 项目共发表研究论文24篇，其中8篇被SCI收录；申报国家发明技术专利8项，其中6项已授权。项目发展的光纤消逝场传感的新机理、新方法和新结构，作为一种微小型生化测试通用技术，可以广泛用于大气污染、水质污染检测，DNA、蛋白质、细胞的探测，并可用于构建集成片上实验室（Lab on Chip）和微分析系统。

中文关键词： 特种光纤；消逝场；集成干涉仪；相位检测；折射率传感

英文摘要： Information technology, biotechnology and materials technology have been three of the fastest developing and most attractive disciplines in the first thirty years of the 21st century. The project proposes a special annulus waveguide fiber, with the principle of interference measurement and the evanescent field of sensing fiber, the refraction index and biochemical sensing can be realized. It is a novel technique across the three above disciplines. The project completed configurations of the annulus waveguide fiber, produced three kinds of special annulus fiber used for evanescent field sensing, built a power coupling model of single and annulus fiber with the structure of cone, and based on splicing-fusion elongation technique, completed mode excitation and power coupling experiments, and realized the connection between single-annulus fiber and single mode fiber, achieved the integrating Michelson and Mach-Zehnder interferometer in a single optical fiber, researching on the refraction index sensing principle of integrating interferometer, completed the study of refraction index measurement sensitivity and its influence under the condition of different evanescent field distributions and different interferometer arm lengths. In the project, twenty-four research papers have been published, in which eight papers were recruited by SCI, declared eight national invention patents and four have been authorized, developed the mini-type universal biochemical monitoring techniques, which can be widely applied for monitoring air and water pollution, detecting DNA, protein and cell, as well as building Lab on Chip and microanalysis system.

英文关键词： special optic fiber; evanescent field; integrated interferometer; phase detection; refractive index sensing