PIC: Navigation grade chip scale gyro enabled by weak value amplification

PIC：通过弱值放大实现的导航级芯片级陀螺仪

• 批准号: 2330328
• 负责人: Jaime Cardenas
• 金额: $ 45万
• 依托单位: University of Rochester
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2023
• 资助国家: 美国
• 起止时间: 2023-09-01 至 2026-08-31
• 项目状态: 未结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2330328&HistoricalAwards=false
• 关键词: PIC; Navigation; grade; chip; scale

Gyroscopes with high sensitivity and stability are essential components for navigation and motion sensing used in drones, Unmanned Aerial Vehicles (UAVs), and satellites, especially as an alternative Positioning and Navigation technology for situations where GPS signals are jammed or unavailable. However, state-of-the-art technology is based on optical fiber gyros that contain spools of fiber several kilometers long or mechanical gyros that have very limited dynamic range. The sensitivity and stability of a gyroscope must be fundamentally traded off between its size and weight. As drones, UAVs, and satellites become smaller and more ubiquitous, the need for ultracompact navigation grade gyroscopes will become critical. State-of-the-art miniaturized gyroscopes are compact and robust but suffer from a performance deficit that hinders their use in navigation. This program will provide the sensitivity level of bulk optical gyroscopes on a small, handheld photonic chip, potentially transforming how navigation is done today. The proposed effort will ignite the passion for science and increase retention in STEM among underrepresented populations at the high school level. The PI will work with the David T. Kearns Center for Leadership and Diversity in Arts, Sciences, and Engineering to broaden the participation of underrepresented groups through research experiences for high school students from the Rochester City School District that spark their desire for a career in STEM.Weak value amplification has proven to offer a phase sensitivity advantage in optical interferometers when comparing equal detected optical power. Weak value amplification amplifies the signal of an interferometric measurement without the cost of amplifying time correlated noise, systematic noise, and other technical noises. However, previous demonstrations of weak value amplification also require complex laboratory setups with exquisite alignment. This proposal will develop the theory that describes weak value amplification in optical gyros and their performance parameters. The theory will also model a novel technique of locking the laser to the sensing cavity while simultaneously measuring rotation. This stabilization strategy is enabled by the rejected light of the weak value scheme, which contains a negligible amount of information relating to the rotation, to separate the stabilization from the measurement on the same cavity. This theoretical background will guide the experimental side of project that will implement weak value amplification on a photonic chip with a high quality factor ring resonator. The proposed gyro will meet navigation grade performance metrics and improve over state-of-the-art by one hundred fold. The photonic structures that will be developed to implement weak value amplification, including multimode couplers, tunable higher order mode couplers, and multilevel photonics, have applications beyond the proposed gyroscope.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.

具有高灵敏度和稳定性的陀螺仪是无人机，无人机（无人机）和卫星中使用的导航和运动感应的必不可少的组成部分，尤其是作为GPS信号被堵塞或不可避免的情况的替代定位和导航技术。但是，最先进的技术基于光纤陀螺仪，该光纤陀螺仪包含几公里长或机械陀螺的纤维线轴，其动态范围非常有限。陀螺仪的敏感性和稳定性必须在其大小和重量之间从根本上进行交易。随着无人机，无人机和卫星变得越来越小，更普遍，对超系统导航级陀螺仪的需求将变得至关重要。最先进的微型陀螺仪是紧凑而稳健的，但遭受了阻碍其在导航中使用的性能不足。该程序将在一个小的手持光子芯片上提供散装光学陀螺仪的灵敏度水平，从而有可能改变今天的导航方式。拟议的努力将激发人们对科学的热情，并增加高中人口中代表性不足的人群的保留率。 PI将与David T. Kearns的艺术，科学和工程领导力和多样性中心合作，通过为罗切斯特城学区的高中生的研究经验扩大代表性群体不足的团体的参与，这激发了他们对STEM的职业的渴望。在比较敏感性的情况下，在对seg的职业中进行了敏感性的优势，可以在优化的相位上进行相等的比较。弱值放大会放大干涉测量的信号，而没有扩增时间相关的噪声，系统噪声和其他技术噪声的成本。但是，先前关于弱价值放大的演示还需要具有精美对准的复杂实验室设置。该提案将开发出描述光学陀螺及其性能参数中弱价值扩增的理论。该理论还将对将激光锁定到传感腔的新技术进行建模，同时测量旋转。这种稳定策略是通过拒绝的弱价值方案的拒绝的光（其中包含与旋转有关的信息可忽略的信息）来将稳定与在同一腔体上的测量区分开的。理论背景将指导项目的实验方面，该项目将在具有高质量因子环谐振器的光子芯片上实施弱价值扩增。拟议的陀螺仪将满足导航级绩效指标，并在最先进的情况下提高一百倍。将开发用于实施弱价值扩增的光子结构，包括多模耦合器，可调的高阶模式耦合器和多级光子学，其应用超出了拟议的陀螺仪。该奖项反映了NSF的法定任务，并通过该基金会的知识优点和广泛的范围来评估NSF的法定任务，并被认为是值得的支持。