4 May 1999 Theoretical study of relaxation in high-power laser amplifiers
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The gain saturation of Nd-glass amplifier is determined by the relaxation rate of populations. The influences of the thermalization rates among the components of the multiplets to which the laser levels belong and of the depletion rate of terminal laser level are investigated in detail. A modified Frantz-Nodvik model in consideration of the influence of thermalization and depletion between laser levels is obtained. By solving these differential equations, we calculated a practical amplifier. The results indicate that the output of the amplifier can increase remarkably when the thermalization time decreases to pulse duration.
© (1999) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Tao Wang, Dianyuan Fan, "Theoretical study of relaxation in high-power laser amplifiers", Proc. SPIE 3613, Solid State Lasers VIII, (4 May 1999); doi: 10.1117/12.347688; https://doi.org/10.1117/12.347688


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