Work

Time-dependent simulations of a CW pumped, pulsed DC discharge Ar metastable laser system

Year: 2019

Type: article

Abstract: transition. Several computational models have been developed to analyze CW systems using steady-state approximations for the discharge excitation, optical pumping and lasing processes. However, recent experiments show that repetitively pulsed discharges have advantages for producing larger volume, high-pressure discharges. Here we present dynamic simulations of a CW laser that uses pulsed-discharge production of Ar metastables. Time-dependent equations are solved for both the discharge and lasing process. Two models are investigated. The first considers the conditions within the lasing medium to be spatially uniform (zero-dimensional model). The second allows for spatial variations along the lasing axis (one-dimensional model). The models were evaluated by simulating the performance characteristics of an experimentally demonstrated system that provides time-averaged output energies in the range of 3-4 W. Time-dependent species densities, laser power and longitudinal spatial distributions are presented.

Source: Optics Express

DOI: 10.1364/oe.27.022289

Authors: Pengfei Sun, Duluo Zuo, Pavel A. Mikheyev, Jiande Han, Michael C. Heaven

Language: English

Topic: Laser Design and Applications

Subfield: Electrical and Electronic Engineering

Field: Engineering

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $2,270

Funders: Ministry of Education and Science of the Russian Federation, China Scholarship Council, Army Research Office

Awards: G1560025416, G8353153480