Orbital angular momentum evolution of twisted multi-Gaussian Schell model beams in anisotropic turbulence

Zhang, Yakai; Wang, Jing; Qian, Xianmei; Zhu, Wenyue; Li, Jinhong

doi:10.1016/j.optcom.2022.128454

Cited by 3 publications

(1 citation statement)

References 45 publications

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“…The dramatic growth of Internet traffic has placed higher demands on information transmission rates and communication capacities [1,2]. Vortex beams carry a unique orbital angular momentum (OAM) that has attracted a lot of attention in multiple fields [3][4][5][6]. The orthogonality between OAM modes with different topological charges is used to realize the mode-division multiplexing, and theoretically, unlimited transmission capacity can be obtained [7,8].…”

Section: Introductionmentioning

confidence: 99%

Generation, Transmission, and Amplification of OAM Modes in the PbSe-Doped Ring-Core Fiber Carrying 3D Printed Spiral Phase Plate

et al. 2022

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Vortex beams carrying orbital angular momentum (OAM) have increasingly attracted attention in the field of optical communication. However, transmission is still an issue due to transmission loss, especially in optical fibers. In this work, we proposed, designed, and fabricated micro spiral phase plates (SPPs) directly on an end facet of a piece of PbSe-doped ring-core fiber (RCF) through two-photon polymerization, realizing the integration of OAM beam generation, transmission, and amplification. The prepared RCF comprises a double-clad structure with a core-clad refractive index difference of 2.2% and the fluorescence range is 1150 nm–1700 nm. The intensity distribution of the OAM beam and the spiral interference fringes were obtained, which indicated that the OAM mode () was generated and transmitted directly within the fiber. The small-signal amplification of four OAM modes was accomplished at 1550 nm under a pump power of 634 mW. The on–off gain is >13.2 dB for all modes and the differential mode gain (DMG) is <1.7 dB. The SPP-carrying RCF structure demonstrates the integration of generation, transmission, and amplification of higher-order OAM modes in all-fiber systems.

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Section: Introductionmentioning

confidence: 99%

Generation, Transmission, and Amplification of OAM Modes in the PbSe-Doped Ring-Core Fiber Carrying 3D Printed Spiral Phase Plate

et al. 2022

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Beam intensity and spectral coherence of Hermite-cosine-Gaussian rectangular multi-Gaussian correlated Schell-model beam in oceanic turbulence

Wang

Kong

et al. 2023

Heliyon

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Bidirectional Propagation Properties of Partially Coherent Laguerre–Gaussian Beams in Atmospheric Turbulence and Plasma

Zhang,

Yao,

Zhao

et al. 2024

Photonics

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The bidirectional propagation properties of partially coherent Laguerre–Gaussian (PCLG) beams under atmospheric turbulence and plasma were numerically investigated. The corresponding analytical formulas for the intensity distribution, effective beam width, and M2 factor of PCLG beams were derived by utilizing the generalized Collins integral formula, atmospheric turbulence theory, and second-order moments theory of the Wigner distribution function. The intensity distribution of the PCLG beams ultimately evolved into a Gaussian-like intensity distribution. Additionally, the effective beam width and M2 factor could be less affected by selecting appropriate parameter values for the beam order, transverse coherence width, and wavelength of the PCLG beam. The impact of parameters such as the beam order, transverse coherence width, and wavelength for reverse transmission on the PCLG beam propagation properties was greater than that for forward transmission. These results are beneficial for applications in free-space optical communications.

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Orbital angular momentum evolution of twisted multi-Gaussian Schell model beams in anisotropic turbulence

Cited by 3 publications

References 45 publications

Generation, Transmission, and Amplification of OAM Modes in the PbSe-Doped Ring-Core Fiber Carrying 3D Printed Spiral Phase Plate

Generation, Transmission, and Amplification of OAM Modes in the PbSe-Doped Ring-Core Fiber Carrying 3D Printed Spiral Phase Plate

Beam intensity and spectral coherence of Hermite-cosine-Gaussian rectangular multi-Gaussian correlated Schell-model beam in oceanic turbulence

Bidirectional Propagation Properties of Partially Coherent Laguerre–Gaussian Beams in Atmospheric Turbulence and Plasma

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