Investigations of optical feedback used to enhance stimulated scattering

Author

Wong, G.K.N. ; Damzen, M.J.

Author_Institution

Bleckett Lab., Imperial Coll., London, UK

Volume

26

Issue

1

fYear

1990

fDate

1/1/1990 12:00:00 AM

Firstpage

139

Lastpage

148

Abstract

The technique of using optical feedback to enhance the phase-conjugation process of stimulated Brillouin scattering is experimentally and theoretically investigated. Several feedback arrangements are experimentally studied and demonstrate the ability to reduce significantly the threshold power requirement, enhance the efficiency, and improve the phase-conjugate fidelity of the Brillouin process. Steady-state analytical solutions for the interactions, including the effects of laser pump depletion, are derived. Numerical modeling is used to introduce the more complete transient effects. Good agreement between the experimental results using a pulsed Nd:YAG laser system and the numerical simulations is achieved. The results are applicable, with modification, to other forms of stimulated scattering and also to self-pumped photoreflection

Keywords

light reflection; optical phase conjugation; optical pumping; stimulated Brillouin scattering; Brillouin process; YAG:Nd; YAl5O12:Nd; feedback arrangements; laser pump depletion; optical feedback; phase-conjugate fidelity; phase-conjugation; pulsed Nd:YAG laser system; self-pumped photoreflection; stimulated Brillouin scattering; stimulated scattering; threshold power requirement; transient effects; Brillouin scattering; Laser excitation; Laser feedback; Laser modes; Laser theory; Numerical models; Optical feedback; Power system modeling; Pump lasers; Steady-state;

fLanguage

English

Journal_Title

Quantum Electronics, IEEE Journal of

Publisher

ieee

ISSN

0018-9197

Type

jour

DOI

10.1109/3.44927

Filename

44927