计算重构光谱分析仪研究进展

光谱测量广泛应用于科学研究及工业生产中，而传统光谱仪因体积庞大难以满足众多应用需求。近年来，快速发展的计算重构光谱分析仪因其具有紧凑小巧、高分辨率和大测量带宽等优势而成为研究热点。光波经过计算重构光谱分析仪后所产生的光斑图案与波长存在一一对应关系，因此采取合适的解调算法可以从生成的光斑图案中重构入射光谱信息。目前计算重构光谱仪已能实现am量级光谱分辨率以及数百nm的测量带宽。本综述介绍了目前各类型计算重构光谱分析仪的工作原理以及性能指标，探讨了不同类型计算重构光谱分析仪的优缺点，分析了进一步提升性能指标的方法，展示了一些基于计算重构光谱分析仪的应用，以及展望了其未来发展前景。

Research Progress of Reconstructive Spectrum Analyzer

Spectrum measurement is widely used in the fields of scientific research and industrial production. Conventional spectrometers cannot meet the requirements of many applications due to their large volume. In recent years, reconstructive spectrum analyzer has become a research hot topic due to its compactness, high-resolution and wide-bandwidth. Owing to the one-to-one mapping relationship between the wavelength and the speckle generated from reconstructive spectrum analyzer, the unknown spectrum can be reconstructed from the generated speckle via appropriate demodulation algorithms. Spectral resolution in am-level and broad bandwidth of hundreds of nm can be achieved in reconstructive spectrum analyzers. This review introduces the recent development of reconstructive spectrum analyzers. The performances of various types of implementations are compared and analyzed, their applications are presented and future prospects are discussed.