Advanced Light Scattering in Fiber: Theory and Applications

光纤中的高级光散射：理论与应用

• 批准号: 227453-2013
• 负责人: Chen, Liang
• 金额: $ 1.53万
• 依托单位: University of Ottawa
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2018
• 资助国家: 加拿大
• 起止时间: 2018-01-01 至 2019-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=647360
• 关键词: Advanced; Light; Scattering; Fiber; Theory

The conventional telecom fibers can find vast usages in many other areas of applications. In this research program advanced light scattering physics is investigated for the purpose of generating transforming applications. When a light is injected into a fiber it can be scattered via the quantum acoustic energy unit (phonons) such that outgoing lights are correspondingly shifted in their energies. Two quantum incident photons possessing the right energy and momentum they could simultaneously interact with a coherent quantum pair of phonons thus giving rise a pair of quantum entangled photons. This fiber compatible quantum entangled photon pair source can be used to build communication channels with absolute security according to quantum mechanics communication protocol. Secure communication between government agencies, financial institutions and other organizations of high societal importance will make public more safe. Another direction of this research program is to construct frequency spectrum magnifying microscope via fiber's dispersion and nonlinear properties. Like usual microscope that magnifies spatial features otherwise unable to be seen with naked eye. This kind of frequency spectrum microscope will enable scientists to investigate fine dynamic properties of systems like biological cell life cycles and chemical reactions. This type of time resolved frequency spectral microscope will give scientists new tools to find methods to treat various diseases, and even to discover more efficient ways of control chemical reactions. An ultra-narrow linewidth fiber laser based on random Rayleigh scattering is also proposed for this program which can be used in the area of optical metrology. Optical fiber laser cooling via anti-Stokes fluorescence will be investigated in normal and anomalous dispersive fibers.************

传统的电信光纤可以在许多其他应用领域找到广泛的用途。在这个研究计划中，为了产生变换应用程序，我们研究了高级光散射物理。当光被注入到光纤中时，它可以通过量子声能单位(声子)进行散射，从而使出射光的能量发生相应的移位。两个具有合适能量和动量的量子入射光子可以同时与一对相干的量子声子相互作用，从而产生一对量子纠缠光子。这种光纤兼容的量子纠缠光子对光源可以用来根据量子力学通信协议建立绝对安全的通信信道。政府机构、金融机构和其他具有高度社会重要性的组织之间的安全通信将使公众更加安全。本研究的另一个方向是利用光纤的色散和非线性特性构建频谱放大显微镜。就像通常的显微镜一样，它可以放大空间特征，否则无法用肉眼看到。这种频谱显微镜将使科学家能够研究生物细胞生命周期和化学反应等系统的精细动态特性。这种类型的时间分辨频谱显微镜将为科学家提供新的工具来寻找治疗各种疾病的方法，甚至发现更有效的控制化学反应的方法。本文还提出了一种基于随机瑞利散射的超窄线宽光纤激光器，可用于光学计量领域。通过反斯托克斯荧光冷却光纤激光将在正常和反常色散光纤中进行研究。