Maxime Morrin Dedo

Hefei University of Technology · Department of Computer Science & Technology

As approximate non-diffracted beams, Bessel Gaussian (BG) beams are more suitable to be used in free-space optical (FSO) communication system than Laguerre Gaussian (LG) vortex beams because of its self-recovering property. However, due to the limitation of its detection method, the multiplexing communication based on multiple Bessel Gaussian beams...

In this paper, we have proposed an improved convolutional neural network model based on the ShuffleNet V2 network for recognizing the orbital angular momentum (OAM) modes for the OAM based free space optical communication systems in the environments of atmospheric turbulence (AT). The network is trained by inputting the intensity images of the Lagu...

Optical vortex carrying orbital angular momentum (OAM) has attracted a lot of attentions in the field of free-space optical (FSO) communication. Generally, after transmitting in atmospheric turbulence, the helical phase-front of Laguerre-Gaussian (LG) beam carrying OAMs will be severely distorted, thus result in intermodal crosstalk, which is a cri...

The transmission of the orbital angular momentum (OAM) beam has attracted a lot of attention in the field of free-space optical (FSO) communication. Usually, after transmitting in atmospheric turbulences, the helical phase-front of OAM beams will be severely distorted, and there will exist the intermode crosstalk. As a result, the performance of th...

The vortex beam carrying orbital angular momentum (OAM) has attracted great attentions in optical communication field, which can extend the channel capacity of communication system due to the orthogonality between different OAM modes. Generally, atmospheric turbulence can distort the helical phase fronts of OAM beams, which presents a critical chal...

With the recent exponential developments of high-speed optical communications, traditional optical communications systems are showing their limitations. Over the past decade, the orbital angular momentum (OAM) is attracting more and more research attention, due to its orthogonality between two OAM states, which supplies new degrees of freedom and c...

Here, we have proposed a high-density orbital angular momentum (OAM) analyzer consisting of two OAM mode converters and a modified Mach–Zehnder interferometer (MZI) that is composed of the standardized MZI and a pair of Dove Prisms, which can effectively avoid the inherent overlap of two adjacent OAM modes in the OAM mode converter. In this scheme,...

Recently, the vortex beam carrying orbital angular momentum (OAM) has attracted lots of attentions in the optical communication system, which can extend the channel capacity effectively due to the orthogonality among different vortex beams. In addition, the different vortex beams can also be used to encode the information with different topological...

Orbital angular momentum (OAM) in optical vortices (OV) beams offers a new dimension of space mode, because coaxially propagating OV beams with different azimuthal OAM states are mutually orthogonal. As a result, the beams can be efficiently multiplexed and de-multiplexed to potentially increase the capacity of optical communication system. Therefo...

In this study, a rapid and non-invasive technology for predicting soil moisture content (SMC) was presented based on hyperspectral imaging (HSI). Firstly, a set of HSI system was developed to collect both spectral (400-1000 nm) and spatial (1620×841 pixels) information from sandy soil samples with variable SMC levels in the laboratory. Principal co...