Open AccessModeling of an optically side-pumped alkali vapor amplifier with consideration of amplified spontaneous emission
Author(s) -
Zining Yang,
Hongyan Wang,
Qin Lu,
Hua Wang,
Xiaojun Xu
Publication year - 2011
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.19.023118
Subject(s) - amplified spontaneous emission , optics , amplifier , materials science , diode , laser , alkali metal , optical amplifier , spontaneous emission , scaling , optoelectronics , physics , geometry , mathematics , cmos , quantum mechanics
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.