The Multimode Laser Radiation as a Gaussian Schell Model Beam

Gase, R.

doi:10.1080/09500349114551141

Cited by 52 publications

(12 citation statements)

References 16 publications

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“…The most important of these, Gaussian Schell-model beams, was determined by Starikov and Wolf (1982); these beams were interpreted as multimode laser radiation by Gase (1991). The mode representation of Bessel-correlated Schell-model sources was derived by Gori, Guattari, and Padovani (1987).…”

Section: The Coherent Mode Representationmentioning

confidence: 99%

The Structure of Partially Coherent Fields

2010

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Section: The Coherent Mode Representationmentioning

confidence: 99%

The Structure of Partially Coherent Fields

2010

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“…The WDF was also applied by Gase [110] to the design of multimode laser resonators consisting of two mirrors and a laser rod between them, the laser rod acting as a convergence lens due to the temperature gradient. The ABCD transformation law of the WDF and of its moments was used to match the radius of the laser beam, considered as an isotropic Gaussian-Schell beam, to the free-rod diameter, this condition describing the stability of the resonator; note that the radius of the laser beam depends on the beam quality parameter.…”

Section: Applications To the Characterization Of Optical Systems And mentioning

confidence: 99%

Applications of the Wigner Distribution Function in Signal Processing

Dragoman

2005

EURASIP J. Adv. Signal Process.

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We present a review of the applications of the Wigner distribution function in various areas of signal processing: amplitude and phase retrieval, signal recognition, characterization of arbitrary signals, optical systems and devices, and coupling coefficient estimation in phase space. Although reference is made to specific signals and systems, the mathematical formulation is general and can be applied to either spatial, temporal, or spatio-temporal phase spaces, to coherent, partially coherent, or discrete signals. The universal and intuitive character of the Wigner distribution approach to signal characterization and processing and its simplicity in solving many issues are evidenced throughout the paper.

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“…The fiber-coupling efficiency of an ideally coherent laser source through atmospheric turbulence has been discussed previously, and the results have been applied to lidar and free-space optical communication [12,13]. However, in practice, the laser emitted is partially coherent, and is represented as Gaussian Schell model (GSM) [22,23]. The effect of the GSM laser source on the fiber-coupling efficiency through atmospheric turbulence has not been studied yet.…”

Section: Introductionmentioning

confidence: 99%

Fiber-coupling efficiency of Gaussian Schell model for optical communication through atmospheric turbulence

Tan

Yang

et al. 2015

Appl. Opt.

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In practice, due to the laser device and the inevitable error of the processing technique, the laser source emitted from the communication terminal is partially coherent, and is represented as a Gaussian Schell model (GSM). The cross-spectral density function based on the Gaussian model in previous research is replaced by the GSM. Thus the fiber-coupling efficiency equation of the GSM laser source through atmospheric turbulence is deduced. The GSM equation presents the effect of the source coherent parameter ζ on the fiber-coupling efficiency, which was not included previously. The effects of the source coherent parameter ζ on the spatial coherent radius and the fiber-coupling efficiency through atmospheric turbulence are numerically simulated and analyzed. The result manifests that the fiber-coupling efficiency invariably degrades with increasing ζ. The work in this paper is aimed to improve the redundancy design of fiber-coupling receiver systems by analyzing the fiber-coupling efficiency with the source coherent parameters.

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The Multimode Laser Radiation as a Gaussian Schell Model Beam

Cited by 52 publications

References 16 publications

The Structure of Partially Coherent Fields

The Structure of Partially Coherent Fields

Applications of the Wigner Distribution Function in Signal Processing

Fiber-coupling efficiency of Gaussian Schell model for optical communication through atmospheric turbulence

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