Open AccessTheoretical analysis and numerical calculation of LD pumped passively Q-switched Er3+,Yb3+ co-doped phosphate glass lasers
Author(s) -
Zhaohui Wu,
Feng Song,
Shujing Liu,
Hong Cai,
Jing Su,
Jie Tian,
Guangyin Zhang
Publication year - 2006
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.55.4659
Subject(s) - photon upconversion , materials science , laser , phosphate glass , rate equation , saturable absorption , q switching , diode , doping , optoelectronics , optics , laser diode , fiber laser , physics , wavelength , quantum mechanics , kinetics
An analytical model of passively Q-switched diode-pumped Er-Yb:glass laser with a Co2+:MgAl2O4 plate as a saturable absorber has been developed. Considering energy transfer between Er3+ and Yb3+, upconversion luminescence and the transition processes of the Co2+ in the Co2+:MgAl2O4 plate, rate equations of the passively Q-switched laser are presented and useful conclusions are drawn by numerical analysis in the paper. The model is very useful for optimizing these kind of lasers.