Deviation of the Frantz-Nodvik equation for zig-zag optical path, slab geometry laser amplifiers

Author

Eggleston, J.M. ; Frantz, L.M. ; Injeyan, H.

Author_Institution

Solidlite Corp., Redmond, WA, USA

Volume

25

Issue

8

fYear

1989

fDate

8/1/1989 12:00:00 AM

Firstpage

1855

Lastpage

1862

Abstract

In slab-geometry laser amplifiers with zig-zag optical paths, multiple reflections within the slab cause the extracting optical beams to repeatedly fold over themselves. Because of this, some regions of the slabs are extracted by two overlapping beams. The theory for pulse propagation in laser amplifiers by L.M. Frantz and J.S. Nodvik (see J. Appl. Phys., vol.34. no.8, p.2346-9, 1963) is extended to include the effects of the zig-zag optical path. Simple equations for slabs which are either uniformly filled by the extracting beam or partially filled are derived. Extraction with spatial beam modulation due to interference is also examined

Keywords

laser beams; solid lasers; Frantz-Nodvik equation; extracting optical beams; interference; multiple reflections; pulse propagation; slab geometry laser amplifiers; spatial beam modulation; two overlapping beams; zig-zag optical path; Equations; Laser beams; Laser theory; Optical amplifiers; Optical beams; Optical modulation; Pulse amplifiers; Semiconductor optical amplifiers; Slabs; Stimulated emission;

fLanguage

English

Journal_Title

Quantum Electronics, IEEE Journal of

Publisher

ieee

ISSN

0018-9197

Type

jour

DOI

10.1109/3.34045

Filename

34045