Terabit per second Data Processing to Extract Features of Interest in Enormous Amount of Data

智力优势：物理学、环境科学和社会学等不同领域都因利用大量数据的能力而发生了巨大的变化，无论这些数据来自计算机、传感器、存储还是成像。然而，与获取新数据的速率相比，电子信号处理器的速度相对“慢”，这在及时处理数据方面造成了瓶颈。信号处理可能涉及：（a）需要对数据的所有部分进行信号处理的图像细化，并且光学处理可以以高数据速率操作，或者（B）需要“扫描”的模式识别（即，相关）来定位期望的特征，并且光学处理可以潜在地获取太字节的数据，快速识别关键的所请求的特征，并且然后允许电子设备以更详细的方式处理太字节。本计画旨在研究可调、可重构复系数延迟线光处理器，以提升模式识别与资料处理的处理速度。该方法利用多个激光器作为光泵，色散元件与波长相关的传播速度，非线性波混频器，和相位/幅度可编程滤波器。所提出的方案的所有参数（即，抽头延迟和系数）可以通过改变泵浦激光器的功率和波长来调谐。这允许光数据信号的比特率可调、数据调制格式透明的相位/幅度处理。该方案可以用作实现更高级功能的构建块，例如2维离散傅立叶变换。更广泛的影响：该技术有可能直接推进许多使用复杂数据和图像处理的领域（例如，环境科学、能源和社会学），由于编码和操纵光波的多个方面的高速能力，提供了以更快的速度筛选非常大的数据集的能力。它可以潜在地实现用于信号处理的新方案，并减少在图像和视频数据集内搜索的时间。该提案希望利用光学的大带宽以完全可调和可重新配置的方式执行数字数据处理，并希望通过显着提高处理速度来改变TB数据的处理方式。鉴于这种方法中光学和电子之间的相互联系，可以追求多学科方面，并可能激发新的混合光学/电子架构。此外：（a）高中生将接触到研究，（B）来自不同背景的本科生和研究生将在多学科实验室环境中接受研究培训。

Intellectual Merit: Fields as diverse as physics, environmental science, and sociology have all been dramatically transformed by the ability to utilize large amounts of data, whether it comes from computers, sensors, storage or imaging. However, the relatively "slow" speed of electronic signal processors compared to the rate at which new data is acquired is creating a bottleneck in the timely processing of data. Signal processing may involve: (a) image refining requiring signal processing on all parts of the data, and optical processing can operate with high data rate, or (b) pattern recognition requiring "scanning" (i.e., correlating) of the large data to locate a desired feature, and optical processing can potentially take Terabytes of data, rapidly identify key requested features, and then allow electronics to process Gigabytes with more detail. This proposal is to research tunable, reconfigurable complex-coefficient tapped-delay-line optical processors to enhance the processing speed for pattern recognition and data processing. The approach utilizes multiple lasers as optical pumps, a dispersive element with a wavelength-dependent propagation speed, nonlinear wave mixers, and a phase/amplitude programmable filter. All parameters of the proposed scheme (i.e., tap delays and coefficients) can be tuned by varying the power and wavelength of the pump lasers. This allows for bit-rate tunable, data-modulation-format transparent phase/amplitude processing of an optical data signal. This scheme can be used as a building block to realize more advanced functionalities, such as 2-dimentional discrete Fourier transforms.Broader Impact: This technology has the potential to directly advance many areas that use sophisticated data and image processing (e.g., environmental science, energy and sociology) by providing the capability to sift through very large data sets at faster speeds due to the high-speed ability to encode and manipulate multiple aspects of an optical wave. It can potentially enable new schemes for signal processing and reduce the time of searches within images and video data sets. This proposal hopes to utilize the large bandwidth of optics to perform digital data processing in a fully tunable and reconfigurable fashion, and to hopefully change the way Terabytes of data is processed by significantly improving the processing speed. Given the inter-connection between optics and electronics in this approach, multidisciplinary aspects can be pursued and potentially inspire novel hybrid optical/electronic architectures. Moreover: (a) high-school students will be exposed to the research, and (b) undergraduate and graduate students from diverse backgrounds will receive research training in a multidisciplinary experimental lab environment.