Radial phased-locked multi-Gaussian Schell-model beam array and its properties in oceanic turbulence. (April 2020)

• Record Type: Journal Article
• Authors: Liu, Dajun; Zhong, Haiyang; Wang, Guiqiu; Yin, Hongming; Wang, Yaochuan
• Is Part Of: Optics & laser technology. Volume 124(2020)
• Publication Date: 2020-04
• Subjects: Radial phase-locked beam array -- Multi-Gaussian Schell-model beam -- Degree of coherence -- Average intensity; Optics -- Periodicals; Lasers -- Periodicals; Electronic journals; 621.366
• DOI: 10.1016/j.optlastec.2019.106003
• Languages: English
• ISSNs: 0030-3992

Abstract

Highlights: The expressions of radial phased-locked multi-Gaussian Schell-model (MGSM) beam array are given. The propagation equations of radial phased-locked MGSM beam array have been derived. The effective size of radial phased-locked MGSM beam array in oceanic turbulence was analyzed. The effects of oceanic turbulence on intensity have been discussed. Abstract: The radial phased-locked multi-Gaussian Schell-model (MGSM) beam array composed by the N MGSM beamlets is first given to describe a new laser array. The evolution properties of radial phased-locked MGSM beam array in free space and oceanic turbulence are discussed in detail. Based on the extended Huygens-Fresnel principle, the MCF and the effective size of radial phased-locked MGSM beam array in oceanic turbulence are derived. The effects of beam parameters and the oceanic turbulence parameters on the spreading and spectral degree of coherence of radial phased-locked MGSM beam array propagating in oceanic turbulence are investigated by using numerical examples. This research may be useful in underwater optical wireless optical communication.