Numerical and experimental investigation on ASE effects in high-power slab amplifiers

A three-dimensional calculation of the amplified spontaneous emission (ASE) is presented that allows rapid determination (with suitable approximation techniques) of the gain-length product (GLP) in high-power slab amplifiers. These calculations include non-saturable absorption, ASE line-narrowing ef...

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Bibliographic Details
Published inOptics and laser technology Vol. 25; no. 5; pp. 309 - 314
Main Authors Lü, Qitao, Dong, Shalei
Format Journal Article
LanguageEnglish
Published Oxford Elsevier Ltd 1993
Elsevier Science
Subjects
amplified spontaneous emission
Doped-insulator lasers and other solid state lasers
Exact sciences and technology
Fundamental areas of phenomenology (including applications)
Lasers
Optics
Physics
slab amplifiers
amplified spontaneous emission
slab amplifiers
Three-dimensional calculations
Spontaneous emission
Experimental study
Lasers
Numerical solution
Plates
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Summary:A three-dimensional calculation of the amplified spontaneous emission (ASE) is presented that allows rapid determination (with suitable approximation techniques) of the gain-length product (GLP) in high-power slab amplifiers. These calculations include non-saturable absorption, ASE line-narrowing effects, and total internal reflections (TIR) at the pumping surfaces. A parametric study of the slab geometry is presented and compared with experimental results. A good qualitative agreement between theory and experiment is achieved.
ISSN:0030-3992
1879-2545
DOI:10.1016/0030-3992(93)90019-C