• Infrared and Laser Engineering
  • Vol. 50, Issue 9, 20210616 (2021)
Qimeng Sha1, Weijie Wang1, Tong Liu1、*, Zhengliang Liu1, Song Qiu1, and Yuan Ren1、2
Author Affiliations
  • 1Department of Aerospace Science and Technology, Space Engineering University, Beijing 101416, China
  • 2Lab of Quantum Detection & Awareness, Space Engineering University, Beijing 101416, China
  • show less
    DOI: 10.3788/IRLA20210616 Cite this Article
    Qimeng Sha, Weijie Wang, Tong Liu, Zhengliang Liu, Song Qiu, Yuan Ren. Analysis of rotational velocity measurement accuracy and signal-to-noise ratio of balanced detection based on vortex beam (Invited)[J]. Infrared and Laser Engineering, 2021, 50(9): 20210616 Copy Citation Text show less
    Design schematic of homodyne detection experiment
    Fig. 1. Design schematic of homodyne detection experiment
    Experimental optical path of homodyne detection
    Fig. 2. Experimental optical path of homodyne detection
    Design schematic of balanced detection experiment
    Fig. 3. Design schematic of balanced detection experiment
    Experimental optical path of balanced detection
    Fig. 4. Experimental optical path of balanced detection
    Rotational velocity spectrum of homodyne detection
    Fig. 5. Rotational velocity spectrum of homodyne detection
    Rotational velocity spectrum of balanced detection
    Fig. 6. Rotational velocity spectrum of balanced detection
    Relative error changes with rotational velocity
    Fig. 7. Relative error changes with rotational velocity
    Analysis of SNR
    Fig. 8. Analysis of SNR
    Qimeng Sha, Weijie Wang, Tong Liu, Zhengliang Liu, Song Qiu, Yuan Ren. Analysis of rotational velocity measurement accuracy and signal-to-noise ratio of balanced detection based on vortex beam (Invited)[J]. Infrared and Laser Engineering, 2021, 50(9): 20210616
    Download Citation