Laser & Optoelectronics Progress, Volume. 58, Issue 18, 1811021(2021)
Accuracy Recognition of Orbital Angular Momentum of Dual-Mode Vortex Beams
Fig. 1. Schematic diagram of dual-mode OAM transmission system
Fig. 2. Phase plate, light intensity distribution, and phase distribution of the beam when OAM values are 1, 3, 5, 7, and 9, respectively
Fig. 3. Phase plate, light intensity distribution, and phase distribution of the beam when the proportional coefficient n is 0.01, 0.1, 0.5, 0.9, and 0.99, respectively
Fig. 4. Relationship between accuracy and loss function and number of iterations
Fig. 5. Influence of image resolution on OAM recognition accuracy
Fig. 6. Influence of training sample number on OAM recognition accuracy
Fig. 7. Confusion matrix
Fig. 8. Influence of proportional coefficient n on OAM recognition accuracy
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Yuer Ye, Junyi Li, Meng Cao, Yong Xia. Accuracy Recognition of Orbital Angular Momentum of Dual-Mode Vortex Beams[J]. Laser & Optoelectronics Progress, 2021, 58(18): 1811021
Category: Imaging Systems
Received: Feb. 23, 2021
Accepted: Apr. 22, 2021
Published Online: Sep. 3, 2021
The Author Email: Xia Yong (yxia@phy.ecnu.edu.cn)