Orbital angular momentum and beyond in free-space optical communications

J Wang, J Liu, S Li, Y Zhao, J Du, L Zhu - Nanophotonics, 2022 - degruyter.com
Orbital angular momentum (OAM), which describes tailoring the spatial physical dimension
of light waves into a helical phase structure, has given rise to many applications in optical …

Turbulence correction with artificial neural networks

S Lohani, RT Glasser - Optics letters, 2018 - opg.optica.org
We design an optical feedback network making use of machine learning (ML) techniques
and demonstrate via simulations its ability to correct for the effects of turbulent propagation …

Real-time 1.5 kHz adaptive optical system to correct for atmospheric turbulence

AV Kudryashov, AL Rukosuev, AN Nikitin… - Optics express, 2020 - opg.optica.org
Problems of constructing an adaptive optical system intended for correcting the wavefront of
laser radiation that has passed through a turbulent atmosphere are considered. To ensure …

[HTML][HTML] Water-cooled stacked-actuator flexible mirror for high-power laser beam correction

V Toporovsky, V Samarkin, J Sheldakova… - Optics & Laser …, 2021 - Elsevier
To correct for phase distortions in high-power laser setups a stacked-actuator deformable
mirror with water cooling was developed. The main characteristics of the mirror such as the …

Bimorph deformable mirror with a high density of electrodes to correct for atmospheric distortions

V Toporovskiy, A Kudryashov, V Samarkin… - Applied Optics, 2019 - opg.optica.org
This paper presents a new development of small-diameter, high-spatial-resolution,
semipassive bimorph deformable mirrors to be used in different imaging systems. To …

Deep learning-based adaptive optics for light sheet fluorescence microscopy

MR Rai, C Li, HT Ghashghaei… - Biomedical Optics …, 2023 - opg.optica.org
Light sheet fluorescence microscopy (LSFM) is a high-speed imaging technique that is often
used to image intact tissue-cleared specimens with cellular or subcellular resolution. Like …

Adaptive turbulence compensation and fast auto-alignment link for free-space optical communications

Y Liang, X Su, C Cai, L Wang, J Liu, H Wang… - Optics …, 2021 - opg.optica.org
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 …

Absolute calibration of a Shack-Hartmann wavefront sensor for measurements of wavefronts

AN Nikitin, I Galaktionov, J Sheldakova… - Photonic …, 2019 - spiedigitallibrary.org
A high-quality flat wave front is usually used to calibrate the Shach-Hartmann wave-front
sensors. The article discusses the possibility of calibrating sensors with spherical wave …

Higher order wavefront correction and axial scanning in a single fast and compact piezo-driven adaptive lens

HGB Gowda, U Wallrabe, MC Wapler - Optics Express, 2023 - opg.optica.org
We present a compact adaptive glass membrane lens for higher order wavefront correction
and axial scanning, driven by integrated segmented piezoelectric actuators. The membrane …

Cooled stacked-actuator deformable mirror for compensation for phase fluctuations in a turbulent atmosphere

VV Toporovsky, AV Kudryashov, VV Samarkin… - … and Oceanic Optics, 2020 - Springer
A wavefront corrector has been designed in the form of a cooled stacked-actuator
deformable mirror for the correction of aberrations of laser radiation propagating through the …