title: Modeling of an optically side-pumped alkali vapor amplifier with consideration of amplified spontaneous emission.
abstract: Diode pumped alkali vapor amplifier (DPAA) is a potential candidate in high power laser field. In this paper, we set up a model for the diode double-side-pumped alkali vapor amplifier. For the three-dimensional volumetric gain medium, both the longitudinal and transverse amplified spontaneous emission (ASE) effects are considered and coupled into the rate equations. An iterative numerical approach is proposed to solve the model. Some important influencing factors are simulated and discussed. The results show that in the case of saturated amplification, the ASE effect can be well suppressed rather than a limitation in power scaling of a DPAA.
authors: College of Optoelectronic Science and Engineering, National University of Defense Technology, Changsha, Hunan Province 410073, China.
authors: Zining
authors: Z
authors: Yang
authors: Hongyan
authors: H
authors: Wang
authors: Qisheng
authors: Q
authors: Lu
authors: Weihong
authors: W
authors: Hua
authors: Xiaojun
authors: X
authors: Xu