A model of spontaneous Brillouin scattering as the noise source for stimulated scattering

Author

Nguyen-Vo, N.-M. ; Pfeifer, S.J.

Author_Institution

Northrop Corp., Hawthorne, CA, USA

Volume

29

Issue

2

fYear

1993

fDate

2/1/1993 12:00:00 AM

Firstpage

508

Lastpage

514

Abstract

A model of spontaneous Brillouin scattering in the presence of a high power pump beam has been developed and incorporated into a wave optics model of backward stimulated Brillouin scattering, providing a realistic distributed noise source for the numerical evaluation of the stimulated process. The model is used to assess the location of the dominant noise contributions in determining the reflectivity and conjugation fidelity of the Stokes return. The effect of f-number and power over threshold is evaluated. The model is validated with experimental data on threshold and conjugation fidelity in the presence of a pump beam with a periodic phase aberration

Keywords

Brillouin spectra; optical phase conjugation; random noise; stimulated Brillouin scattering; Stokes return; backward stimulated Brillouin scattering; conjugation fidelity; distributed noise source; f-number; high power pump beam; noise source; periodic phase aberration; power; pump beam; reflectivity; spontaneous Brillouin scattering; stimulated scattering; threshold; wave optics model; Brillouin scattering; Fluctuations; Laser excitation; Light scattering; Optical noise; Optical scattering; Phase noise; Phonons; Rayleigh scattering; Reflectivity;

fLanguage

English

Journal_Title

Quantum Electronics, IEEE Journal of

Publisher

ieee

ISSN

0018-9197

Type

jour

DOI

10.1109/3.199305

Filename

199305