Harnessing the vector modes of multimode optical fibers

利用多模光纤的矢量模式

• 批准号: RGPIN-2015-04463
• 负责人: Ung, Bora
• 金额: $ 1.75万
• 依托单位: École de technologie supérieure
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2016
• 资助国家: 加拿大
• 起止时间: 2016-01-01 至 2017-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=612980
• 关键词: Harnessing; vector; modes; multimode; optical

Optical fibers have had a profound impact on civilization by making the Internet revolution possible and, more recently, by opening new forays as remote sensors, illumination sources, biomedical probes and optical tweezers, among others. Light propagation in optical fibers is mediated by spatial modes. The classical scalar modes, although representing approximate descriptions, are still primarily used today because of its adequate accuracy for most applications that depend on singlemode fibers. Beneath this monotonous landscape lies a teeming diversity of vector modes supported by multimode fibers. Vector modes represent the true modes of an optical fiber, but have been largely disregarded so far due to technological limitations in their selective excitation, propagation and detection. Recent advances on all fronts have brought the prospect of harnessing the vector modes towards transformative science and photonic technologies. This is the stated long-term aim of this proposal. More specifically, the proposal identifies three main objectives to follow:      -  Investigate the underlying fundamental science that governs the behavior and properties of vector modes in multimode fibers      -  Develop advanced methods for the excitation, characterization, modulation and detection of vector modes      -  Develop novel multimode fiber designs, material compositions and photonic components engineered for the precise steering and shaping of vector modes In order to push forward the science of vector modes we need to find new ways to selectively excite, propagate and shape the vector modes by taking advantage of the many light-matter interactions available. The program identifies four promising angles of research to pursue along with clear paths of investigation for each:      A)  Specialty multimode fibers      B)  Optoelectronic interactions      C)  Magneto-optical and magneto-physical interactions      D)  Acousto-optic interactions The first goal of this proposal is the creation, at the end of a five-year plan, of a state-of-the-art internationally recognized research laboratory at the forefront of the science of vector modes and their applications. The key notion behind this proposal is that vector modes represent the basic building blocks with which all the possible ways of shaping light propagation in optical fibers can be devised. By conducting research in vector modes we thus improve our understanding and control of light-matter interactions in optical fibers on the most fundamental level. This important realization opens the prospect of groundbreaking scientific discoveries and for using special optical fibers in a multiplicity of modalities and applications not imagined before. This leads us to the second long-term goal of the proposal which is the transfer of the generated science and methods towards practical uses in industry and medicine, and their leverage in neighboring spheres of science.

光纤通过使互联网革命成为可能，对文明产生了深远的影响，并且最近通过作为遥控传感器，照明来源，生物医学问题和光学镊子等开启新尝试。光纤中的光传播是由空间模式介导的。经典标量模式虽然代表近似描述，但由于其足够的精度对于大多数依赖单轴纤维的应用，但仍在使用。在这个单调的景观之下，是由多模纤维支持的矢量模式的多样性。向量模式代表了光纤的真实模式，但由于其选择性兴奋，传播和检测的技术局限性，到目前为止已在很大程度上被忽略。在各个方面的最新进展带来了将矢量模式朝着变革性科学和光子技术迈进的前景。这是该提议的长期目标。更具体地说，该提案确定了以下三个主要目标： - 研究控制多模纤维中向量模式的行为和特性的基本科学 - 开发用于兴奋，表征，调制和检测向量模式的高级方法 - 开发新颖的多模纤维设计，材料组成和光子组件，用于精确转向和构图的矢量模式 为了推动向量模式的科学，我们需要找到新的方法，以利用可用的许多光结合相互作用来选择性地激发，传播和塑造矢量模式。该计划确定了四个有希望的研究角度，以及每种有明确的投资途径： a）特种多模纤维 b）光电相互作用 c）磁光和磁物质相互作用 d）声学相互作用 该提案的第一个目标是在五年计划结束时创建了一个最先进的国际认可的研究实验室，该实验室位于矢量模式及其应用科学的最前沿。该提案背后的关键概念是，向量模式代表了基本的构建块，这些构建块可以通过这些块来设计光纤中光传播的所有可能方法。因此，通过对向量模式进行研究，我们可以在最基本的层面上提高对光纤中光纤维相互作用的理解和控制。这一重要的实现开辟了开创性的科学发现的前景，并在以前未曾想象过的多种方式和应用中使用特殊的光纤。这使我们达到了该提案的第二个长期目标，即将产生的科学和方法转移到工业和医学中的实际用途，以及它们在邻近科学领域的杠杆作用。