Adaptive Optics Compensation for Orbital Angular Momentum Optical Wireless Communications
Date
2022-01-01Author
Chang, HuanYin, Xiaoli
Yao, Haipeng
Wang, Jingjing
Gao, Ran
Xin, Xiangjun
Guizani, Mohsen
...show more authors ...show less authors
Metadata
Show full item recordAbstract
Adaptive optics (AO) can efficiently compensate for turbulence-induced distortion in orbital angular momentum (OAM)-based optical wireless communication (OWC) systems. In this paper, we design a modified phase diversity algorithm (MPDA)-based wavefront sensor to enhance the reconstruction accuracy of distorted OAM wavefront information. Aiming to further strike a compelling trade-off between AO system complexity and compensation accuracy, we first construct a novel AO system that applies a quickly and electronically controlled focus-tunable lens (FTL). It decontaminates distorted OAM signaling beams while having a low systemic complexity and superior convergence performance. Furthermore, we propose the 3-modified phase diversity algorithm (3-MPDA) AO scheme relying upon a Fourier intensity and two defocused intensities as the prior information, which beneficially balances the compensation effect and the number of defocused intensities and exhibits good noise robustness against charge-coupled device (CCD) detectors. In summary, this paper provides new insight for designing AO schemes with high compensation performance in communication links.
Collections
- Computer Science & Engineering [2287 items ]
Related items
Showing items related by title, author, creator and subject.
-
Hybrid electro-optic plasmonic modulators based on directional coupler switches
Zografopoulos, Dimitrios C.; Swillam, Mohamed A.; Shahada, Lamees A.; Beccherelli, Romeo ( Springer Verlag , 2016 , Article)By breaking the diffraction limit, plasmonics enable the miniaturization of integrated optical signal processing units in a platform compatible with traditional CMOS technology. In such architectures, modulators and switches ... -
Optical biosensor based on ultrathin SOI waveguides
Elsayed, Mohamed; Mohamed, Sherif; Aljaber, Amina; Swillam, Mohamed ( Optica Publishing Group (formerly OSA) , 2020 , Conference Paper)We introduce an optical biosensor utilizing the MMI configuration and based on the ultrathin SOI platform. The biosensor was optimized using finite difference time domain simulations. A sensitivity of 420 nm/RIU was achieved. -
A Flexible Gastric Gas Sensor Based on Functionalized Optical Fiber
Chen, Yu; Zilberman, Yael; Ameri, Shideh Kabiri; Yoon, Woon Jong; Cabibihan, John-John; Sonkusale, Sameer R.... more authors ... less authors ( Institute of Electrical and Electronics Engineers Inc. , 2016 , Article)We present a gastric gas sensor based on conjoined dual optical fibers functionalized with sensitive optical dyes for sensing gases in both fluidic and gaseous environments. The sensor aims to sense various concentrations ...