Orbital Angular Momentum Multiplexed Free-Space Optical Communication Systems Based on Coded Modulation
Abstract
In this paper, we experimentally investigate the turbulence mitigation methods in free-space optical communication systems based on orbital angular momentum (OAM) multiplexing. To study the outdoor atmospheric turbulence environment, we use an indoor turbulence emulator. Adaptive optics, channel coding, Huffman coding combined with low-density parity-check (LDPC) coding, and spatial offset are used for turbulence mitigation; while OAM multiplexing and wavelength-division multiplexing (WDM) are applied to boost channel capacity.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Nov 07, 2018
- Source ID
- 10.3390/app8112179
Entities
People
- Ivan B. Djordjevic
- Zhen Qu
Organizations
- Office of Naval Research