Diffraction losses of Nd:YAG and Yb:YAG laser crystals

Based on space-dependent rate equations, the lowest threshold input power for a diode end-pumped solid-state laser is obtained for the pump spot size w p→0. However, as the pump beam waist is decreased, the thermally induced effects in the laser rod would be very high. Diffraction losses caused by r...

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Published inOptics and laser technology Vol. 33; no. 2; pp. 129 - 134
Main Authors Xie, Wenjie, Kwon, Young, Tam, Siu-Chung, Lam, Yee-Loy
Format Journal Article
LanguageEnglish
Published Oxford Elsevier Ltd 01.03.2001
Elsevier Science
Subjects
Diode-pumped lasers
Doped-insulator lasers and other solid state lasers
Exact sciences and technology
Fundamental areas of phenomenology (including applications)
Lasers
Nd : YAG and Yb : YAG
Optics
Physics
Solid-state lasers
Thermal effects
Solid-state lasers
Lasers
Nd : YAG and Yb : YAG
Thermal effects
Temperature effects
Solid state lasers
YAG laser
Theoretical study
Diode pumping
End pumping
Neodymium lasers
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Summary:Based on space-dependent rate equations, the lowest threshold input power for a diode end-pumped solid-state laser is obtained for the pump spot size w p→0. However, as the pump beam waist is decreased, the thermally induced effects in the laser rod would be very high. Diffraction losses caused by radial and tangential variations of refractive index have been analyzed and compared for the Nd : YAG and the Yb : YAG at room temperature ( 300 K ) and liquid-nitrogen temperature ( 77 K ).
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:0030-3992
1879-2545
DOI:10.1016/S0030-3992(01)00007-X