Open AccessCoupled simulation of chemical lasers based on intracavity partially coherent light model and 3D CFD model
Author(s) -
Kenan Wu,
Ying Huai,
Shuqin Jia,
Yuqi Jin
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.19.026295
Subject(s) - optics , laser , light field , computational fluid dynamics , field (mathematics) , physics , mode (computer interface) , computer simulation , mechanics , computer science , mathematics , pure mathematics , operating system
Coupled simulation based on intracavity partially coherent light model and 3D CFD model is firstly achieved in this paper. The dynamic equation of partially coherent intracavity field is derived based on partially coherent light theory. A numerical scheme for the coupled simulation as well as a method for computing the intracavity partially coherent field is given. The presented model explains the formation of the sugar scooping phenomenon, and enables studies on the dependence of the spatial mode spectrum on physical parameters of laser cavity and gain medium. Computational results show that as the flow rate of iodine increases, higher order mode components dominate in the partially coherent field. Results obtained by the proposed model are in good agreement with experimental results.