Theoretical study of relaxation in high-power laser amplifiers

Tao Wang; Dianyuan Fan

doi:10.1117/12.347688

4 May 1999 Theoretical study of relaxation in high-power laser amplifiers

Tao Wang, Dianyuan Fan

Proceedings Volume 3613, Solid State Lasers VIII; (1999) https://doi.org/10.1117/12.347688
Event: Optoelectronics '99 - Integrated Optoelectronic Devices, 1999, San Jose, CA, United States

Abstract

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.

Citation Download Citation

Tao Wang and Dianyuan Fan "Theoretical study of relaxation in high-power laser amplifiers", Proc. SPIE 3613, Solid State Lasers VIII, (4 May 1999); https://doi.org/10.1117/12.347688

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