Open AccessTheoretical and experimental investigation of actively Q-switched Tm,Ho:YLF lasers
Author(s) -
Xinlu Zhang,
Youlun Ju,
Yuezhu Wang
Publication year - 2006
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.14.007745
Subject(s) - laser , optics , materials science , q switching , diode , energy conversion efficiency , energy (signal processing) , pulse (music) , physics , optoelectronics , quantum mechanics , detector
The quasi-three-level rate equation of continuous wave end-pumped actively Q-switched Tm,Ho:YLF laser is given under considering energy transfer up-conversion and ground state re-absorption. The analytical formula of the pulse energy is derived. The theoretical results show that the overall laser performance is affected by up-conversion effect, and the energy transfer up-conversion effect reduces the pulse energy and the upper level effective lifetime. The practical example of the diode end-pumped actively Q-switched Tm,Ho:YLF is used to verify the present model.