基于旋转多级相位调制的轨道角动量模式复用全息方法
By constructing a physical model of rotating multi-level phase modulation and optimizing the phase distribution using the gradient descent algorithm, the problem of mode order interval limiting holographic capacity in existing technologies is solved, and holographic imaging with larger capacity and higher density is realized.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- SHENZHEN UNIV
- Filing Date
- 2023-10-26
- Publication Date
- 2026-07-17
AI Technical Summary
Existing orbital angular momentum mode multiplexing techniques require a large mode order interval to ensure non-overlapping sampling, which limits the improvement of holographic capacity.
A method based on rotating multi-level phase modulation is adopted. By constructing a physical model of rotating multi-level phase modulation, the optimal phase distribution of the phase modulation plane is iteratively optimized using the gradient descent algorithm. The incident multiplexed orbital angular momentum mode is then converted into the corresponding reconstructed image by rotating the phase modulation plane.
It achieves holographic imaging with larger capacity, more channels, and higher information density, thereby improving holographic capacity and information storage density.
Smart Images
Figure CN117471887B_ABST