Open AccessMechanism of dual-wavelength oscillation in Nd:YAG Q-switched laser
Author(s) -
Lin Yan-feng,
Ge Zhang,
Zhu Haiyong,
Chun Huang,
Li Ai-hong,
Wei Yong
Publication year - 2009
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.58.3909
Subject(s) - laser , oscillation (cell signaling) , resonator , q switching , wavelength , optics , relaxation (psychology) , physics , pulse (music) , materials science , chemistry , psychology , social psychology , biochemistry , detector
The oscillation mechanism of dual-wavelength Nd:YAG Q-switched laser with two-mirror resonator is studied on the basis of the rate equation. The characteristics of the dual-wavelength laser are discussed by analysing the competition process with different transmissivities. Results show that the oscillating time of the Q-switched pulse laser for 1319nm laser is delayed relative to that of 1064nm. The 1319nm Q-switched laser is formed finally from the first relaxation oscillation spike after the Q-switch opening, i.e. it restrains the rest relaxation oscillation spikes. The transmissivity of relatively balanced output energy is theoretically obtained.