Journal of Applied Sciences ›› 2021, Vol. 39 ›› Issue (5): 695-712.doi: 10.3969/j.issn.0255-8297.2021.05.001

• Optical Fiber Sensors Technology • Previous Articles     Next Articles

Research Progress of Reconstructive Spectrum Analyzer

WAN Yangyang, FAN Xinyu, HE Zuyuan   

  1. State Key Laboratory of Advanced Optical Communication Systems and Networks, Shanghai Jiao Tong University, Shanghai 200240, China
  • Received:2021-06-07 Published:2021-10-11

Abstract: 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.

Key words: spectroscopy, speckle, spectrum analyzer, high-resolution

CLC Number: