Zhang Xiao, Wang Chengming, Zhang Wenxin, Ai Shengnan, Liao Wenchao, Hsieh Jui-Cheng, He Bin, Chen Zhengyu, Hu Zhangwei, Zhang Ning, Xue Ping
Opt Express. 2021 Jan 4;29(1):305-314. doi: 10.1364/OE.413628.
Data-processing techniques in spectroscopy are fundamental and powerful analytical tools for lots of practical applications. In the age of big data, high-speed data-processing in spectroscopy is in urgent need, especially for the real-time analysis/feedback of data stream of spectroscopy or the capture of non-repetitive/rare phenomena in fast dynamic process. So far, intensive researches focus on high-speed processing of light signal in time/spatial domain but few people find a way to do it in spectral domain. Here, we report an optical computing technology for high-speed optical spectrum processing with features of real time, multiple functions, all-fiber configuration and immunity to electromagnetic interference. The software-controlled system could perform as, but not limited to, the first-order (or arbitrary fractional-order) differentiator/integrator/Hilbert transformer and tunable band-pass filter, respectively, to handle spectral data rapidly. High-speed processing of optical spectrum at a rate of 10,000,000 times per second is demonstrated.
光谱学中的数据处理技术是许多实际应用中基础且强大的分析工具。在大数据时代，光谱学中的高速数据处理迫在眉睫，特别是对于光谱数据流的实时分析/反馈或快速动态过程中非重复性/罕见现象的捕捉。到目前为止，大量研究集中在光信号在时域/空域的高速处理上，但很少有人找到在光谱域进行高速处理的方法。在此，我们报道一种用于高速光谱处理的光学计算技术，具有实时、多功能、全光纤配置和抗电磁干扰的特点。该软件控制系统可以分别作为但不限于一阶（或任意分数阶）微分器/积分器/希尔伯特变换器和可调带通滤波器，来快速处理光谱数据。展示了每秒10000000次的光谱高速处理能力。
