Comparison of the statistical properties of laser speckles and complex spatial patterns of a photorefractive oscillator

Authors

Darwin Z. Palima ⋅ PH National Institute of Physics, University of the Philippines Diliman
Manuela Fe Tarroja-Keller ⋅ PH National Institute of Physics, University of the Philippines Diliman

Abstract

Many complex spatio-temporal phenomena exist in nature. Some may be attributed to deterministic origin (e.g. turbulence) while others are of stochastic origin (e.g. noise). It is necessary to find suitable properties that can be unambiguously identified with each.
In this research, the spatial statistical properties of laser speckles and patterns of a photorefractive oscillator (PRO) are studied and compared to determine if the spatial properties will enable us to distinguish between the two types of complex behavior.
Standard statistical measures such as intensity histogram, spatial power spectrum, spatial autocorrelation and correlation length are used. The statistics of the optical vortices observed in both systems are also studied as an alternative approach.

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Issue

1995: Proceedings of the 13th National Physics Congress of the Samahang Pisika ng Pilipinas

Article ID

SPP-1995-LP-02

Section

Laser Physics and Spectroscopy

Published

1995-10-21

How to Cite

[1]

DZ Palima and MF Tarroja-Keller, Comparison of the statistical properties of laser speckles and complex spatial patterns of a photorefractive oscillator, Proceedings of the Samahang Pisika ng Pilipinas 13, SPP-1995-LP-02 (1995). URL: https://proceedings.spp-online.org/article/view/SPP-1995-LP-02.