Properties of partially coherent elegant Laguerre-Gaussian beam in free space and oceanic turbulence
- Resource Type
- Authors
- Yaochuan Wang; Haiyang Zhong; Tong Xia; Guiqiu Wang; Dajun Liu; Aiyi Dong
- Source
- Optik. 201:163514
- Subject
- Physics
Turbulence
Gaussian
02 engineering and technology
Degree of coherence
021001 nanoscience & nanotechnology
01 natural sciences
Atomic and Molecular Physics, and Optics
Electronic, Optical and Magnetic Materials
Coherence length
Computational physics
010309 optics
symbols.namesake
0103 physical sciences
symbols
Laguerre polynomials
Electrical and Electronic Engineering
0210 nano-technology
Anisotropy
Physics::Atmospheric and Oceanic Physics
Beam (structure)
Gaussian beam
- Language
- ISSN
- 0030-4026
The analytical expression of partially coherent elegant Laguerre-Gaussian (PCELG) beam generated by anisotropic Gaussian Schell-model sources is given. The analytical formulas of CSD for a PCELG beam propagating in free space and oceanic turbulence are derived. The characteristics of average intensity and spectral degree of coherence of a PCELG beam propagating in free space and oceanic turbulence are investigated by using numerical simulations. It is shown that the stronger oceanic turbulence will accelerate the evolution of a PCELG beam propagating in oceanic turbulence, and the influences of coherence length on the spectral degree of coherence will disappear as the propagation distance increases. The findings may be useful in underwater optical communications.