We demonstrate digital turbulence compensation using a 12-spatial mode digital coherent
receiver with a multimode preamplifier that provides a 6-dB sensitivity improvement. This …

Over the last decade, adaptive optics technology has moved from the purview of a
Department of Defense laboratory to astronomical telescopes around the world, and recently …

Free-space point-to-point optical communication often suffers from atmospheric turbulence
and device vibration where the environment is harsh. In this paper, by introducing an …

The performance of free-space optics communication (FSOC) is greatly degraded by
atmospheric turbulence. Adaptive optics (AO) is an effective method for attenuating the …

We report investigations on the mode diversity receiver applied in optical links from low-
earth-orbital satellites to a ground terminal. We numerically simulated temporal power …

A continuous time-domain adaptive power model of transmitter optical and control algorithm
based on atmospheric turbulence channel reciprocity are explored for mitigating the free …

We propose and demonstrate turbulence-resistant free-space optical communication using
a 10-mode pre-amplified receiver. A 6-dB improvement over a single-mode preamplified …

In this paper, to achieve higher robustness against atmospheric turbulence for high-capacity
free-space optical (FSO) communications, an adaptive multi-modal FSO transceiver has …

We utilize aperture diversity combined with multiple-mode receivers and multiple-input-
multiple-output (MIMO) digital signal processing (DSP) to demonstrate enhanced tolerance …

We experimentally demonstrate the enhanced atmospheric turbulence resiliency in a 137.8
Gbit/s/mode mode-division multiplexing free-space optical communication link through the …